Mazda CX-9 Electrical Problems and Repair Descriptions at TrueDelta (2023)

2019 Mazda CX-9 4-door SUV

turbocharged 250hp 2.5L I4 6-speed automatic 4WD

22 milesSpider web Crack on multimedia screen... Dealer installed a replacement screen under factory warranty (known issue) and also had dealer perform a software update at no extra charge
6000 kilometersThe upper right corner of the navigation screen glass is cracked; Replaced under basic warranty.
36000 kilometersThe infotainment screen started to cloud up and had to be replaced. I had to send it back 3 more times because they didn't have the part, then they told me it was in it when it wasn't, then they got the part wrong, and finally they fixed it.

go back up

2018 Mazda CX-9 4-door SUV

turbocharged 250hp 2.5L I4 6-speed automatic 4WD

7000 kilometers2 times all indicator and warning lights, alarms, etc. They came on while I was driving. It was working fine at this point and all warnings, alarms, etc. they were unfounded. The dealer, in conjunction with Mazda, checked all wiring systems, ECM connectors, etc., tested and drove the VHE. Do you see what is happening in the future? I don't know if the repair is successful?
14000 kilometersas before, all alarms and warning lights... Wiring, connectors were checked in workshop and reprogrammed
23000 kilometersFaulty ECU causes multiple failures. The vehicle would go into a limp start mode. Replacing the ECU fixed the problems
200 milesSecond row USB ports not working
4000 kilometersDead battery for unknown reason. DEALER HAD TO FIX A SMART KEY ERROR AFTER JUMPING VEHICLE. No problems with the vehicle while the fault was present.

go back up

2017 Mazda CX-9 4-door SUV

turbocharged 250hp 2.5L I4 6-speed automatic 4WD

8000 kilometersThe infotainment system crashes, reboots, and becomes unresponsive when Bluetooth devices are connected.
53630 kilometers


The OEM battery failed. Replaced with Group 24F AGM battery.
8000 kilometersThe system was locked up to the point where the radio could not be turned off or controlled in any way. It would also restart while driving.
36000 kilometers

150 US dollars

The battery needed to be replaced and was nearing the end of the warranty period.

go back up

2016 Mazda CX-9 4-door SUV

turbocharged 250hp 2.5L I4 6-speed automatic 4WD

15000 kilometersThe infotainment screen was replaced by the dealer under warranty
7000 kilometersThe oil change reminder came on and wouldn't go off, despite the system saying we had 3000 miles to go before the next service. The Mazda dealer was stumped and found that simply switching to flexible intervals "fixed" the problem. The retailer also updated the system software due to Bluetooth issues.
13000 kilometersThe infotainment system was again behaving erratically, with occasionally long boot times and occasional restarts while driving.

go back up

2014 Mazda CX-9 4 door SUV

273 hp 3.7-liter V6 6-speed automatic with front-wheel drive

43000 kilometersReplaced front driver side window lift motor Replaced passenger side window lift motor
52140 kilometersReplaced driver's side rear window motor Replaced passenger's side rear window motor

go back up

2013 Mazda CX-9 4-door SUV

273 hp 3.7-liter V6 6-speed automatic with front-wheel drive

75000 kilometersThe remote control sensor that allows you to press the button on the driver's side door handle no longer works. They told me that the cost of repairs would be prohibitive.
85000 kilometers

100 US dollars

Factory battery replacement after only two years. Under warranty.
130000 kilometers

900 US dollars

replaced starter
74000 kilometers

220 US dollars

The OEM battery does not hold a charge.

go back up

2013 Mazda CX-9 4-door SUV

273 hp 3.7-liter V6 6-speed automatic with all-wheel drive

39000 kilometers

100 US dollars

The navigation system stopped working as if the vehicle didn't even have built in navigation. The dealer has updated the system again and it seems to be fine now.

go back up

2012 Mazda CX-9 4-door SUV

273 hp 3.7-liter V6 6-speed automatic with front-wheel drive

60000 kilometersClogged drain plug. Water has collected in the vent and is spilling out through the fan. Erases easily with Shop Vac.
55000 kilometers

50 US dollars

Window regulators on both fronts stopped working due to worn gears
31700 kilometers

80 US dollars

High beam range and quality had deteriorated significantly since it was new. Replaced by Sylvania Ultra bulbs. I tried to replace the bulbs myself but couldn't get my hand into the tight space to insert and secure the bulbs.

go back up

2012 Mazda CX-9 4-door SUV

273 hp 3.7-liter V6 6-speed automatic with all-wheel drive

75000 kilometers

100 US dollars

The brake switch had to be replaced because it was causing a check engine light
6000 kilometersTPMS light came on
80000 kilometers

25 US dollars

Both headlights were changed after one burned out. Sixth replacement in the last 20,000 miles (3 years). The dealer knows this is a big problem for the CX-9 but has no suggestions. I have tried several different high quality bulbs, they all seem to last around 6 months.

go back up

2011 Mazda CX-9 4 door SUV

273 hp 3.7-liter V6 6-speed automatic with front-wheel drive

44000 kilometers

150 US dollars

The battery had to be replaced.
26000 kilometersSomehow the cabin filter housing broke. Nobody knows how. Maybe the company that did our inspection broke it without letting us know.
79000 kilometers

400 US dollars

alternator failure
80000 kilometers

150 US dollars

Replace Driver Door Power Lock Actuator/Bolt
123600 kilometers

400 US dollars

Change alternator and drive belt
131523 kilometers

250 US dollars

Replace starter
116500 kilometers

350 US dollars

Faulty driver side power window motor.
44200 kilometers

150 US dollars

Faulty passenger side window motor
27000 kilometersFaulty driver side power window motor.
47000 kilometersPassenger side airbag
64788 kilometers

330 US dollars

The driver's door master window switch would not lower the left rear window. It worked in the upward direction. The entire switch had to be replaced.
74000 kilometers

375 US dollar

The driver's door [window] motor needed to be replaced. The airbag pump was replaced due to a recall
101000 kilometers

40 US dollars

Replaced passenger side window motor.

go back up

2011 Mazda CX-9 4 door SUV

273 hp 3.7-liter V6 6-speed automatic with all-wheel drive

4800 kilometersProblem with the tailgate that does not close. Update: it later went off on its own.
77000 kilometers

150 US dollars

battery replaced
8000 kilometersI replaced the driver side window regulator because I thought it was noisy :)

go back up

2010er Mazda CX-9 4dr SUV

273 hp 3.7-liter V6 6-speed automatic with front-wheel drive

31800 kilometersThe A/C condensate drain line was clogged and water was collecting in the reservoir behind the glove box.
34700 kilometersThe driver side low beam HID headlights have stopped working. The bulb was fine, the dealer had to replace the HID controller.
15000 kilometersThe automatic tailgate would not close. The tailgate could not be closed manually or in any other way.
11700 kilometersVerizon cell phone charger was stuck in the outlet. The dealer said it was a known issue and a TSB had been issued.

go back up

2010er Mazda CX-9 4dr SUV

273 hp 3.7-liter V6 6-speed automatic with all-wheel drive

127000 kilometers

500 US dollars

Required to replace the ballast in HID headlights.
8500 kilometersHeated seats for both seats, recalled but mine had already failed.
84500 kilometers

1050 US dollar

The leak would not hold the AC refrigerant. Major repair, several hours to replace worn parts.
34500 kilometers

15 US dollars

The front/rear fan relay (part L1Y1-67-730) was replaced when the air conditioning/heating fan came on when the ignition key was removed.
34000 kilometers

70 US dollars

The car did not start in the morning. I thought something was draining the battery overnight, but after I took the car to a dealer (they said the battery was fine), the second dealer replaced the battery.
93000 kilometers

180 US dollars

The TPMS sensor on the left rear wheel has stopped working. Tire pressure light came on. When I measured the tire pressure on the left rear wheel, the valve blew and the air pressure leaked out.
107000 kilometers

200 US dollars

4 external light bulbs needed to be replaced
61380 kilometers


Fuel tank sensor replaced. The dealer told me that the sensor was "seized" by the coating used by Krown Antirust. I haven't been back to Krown to see if it's possible.
63640 kilometers


TPMS replaced on a tire
55000 kilometers

220 US dollars

The TCS system switch failed and needed to be replaced.
80900 kilometers

735 US dollar

new computer for the locking system, the module under the dash was faulty
79000 kilometers

100 US dollars

I had to change a relay
108000 kilometersThe A/C drain line was clogged. Used shop vacuum cleaner and accessory to remove clogs. Apparently, the accumulation of water has affected the fan.
25000 kilometersAccessories socket - Fuse blown. The driver side map light also took less than ten minutes to change.

go back up

2009 Mazda CX-9 4-door SUV

273 hp 3.7-liter V6 6-speed automatic with front-wheel drive

112000 kilometers

400 US dollars

The power window motor in the front passenger window had to be replaced
126000 kilometers

480 US dollars

The alternator has been overloaded. It has been remodeled.
29000 kilometers

150 US dollars

Low load of air conditioning, additional freon. Now OK Power window motor failed. substituted. good now
30000 kilometers

150 US dollars

Power window motor failed. Now both windshield motors have failed.
53000 kilometers

190 US dollars

smart key failed
53000 kilometersBlind side monitoring works intermittently. I have not repaired
1300 kilometersThe right rear window went off the rail. This was due to incorrect assembly at the factory, a known issue for 2009 CX9s. No new parts, just an assembly of existing parts.
73000 kilometersThe passenger side windshield no longer rolls up. I would just go down. The dealer replaced the actuator and it was still under warranty so it cost me nothing.
95300 kilometershe heard the gurgling of the water. Google search showed a clogged AC drain. Vacuums were used to clear the drain under the car, spilling a half gallon of water.
101500 kilometers

124 US dollars

Suddenly dead battery.
43000 kilometers

622 US dollar

Short circuit in the fan motor due to water accumulation in the AC drain line.
78000 kilometers

1000 US dollars

Evaporator coil leak
68000 kilometers

504 us dollar

The passenger side window didn't work. The gears sounded broken. Sounds the same on the driver's side, also almost fixed.
80400 kilometers

140 US dollars

The engine revved up much slower than usual.
82200 kilometersThe ignition key "SMART CARD" no longer works. I changed the battery but it still doesn't work.
107700 kilometers

900 US dollars

Driver door regulator motor problem

go back up

2009 Mazda CX-9 4-door SUV

273 hp 3.7-liter V6 6-speed automatic with all-wheel drive

107000 kilometers

100 US dollars

Light harness failed...needed to be replaced. Passenger side
83100 kilometers

500 US dollars

Battery charge test failed
102000 kilometersAir Bag Sensor Removal
51300 kilometersThe headlight actuator does not work. Electrical connection disconnected.
59000 kilometers

425 US dollar

Four bad TPMS
70000 kilometers

20 US dollars

Broken cable connecting the DVD player screen to the actual DVD player. Known issue with CX-9 with DVD players; Dealers want to repair a fortune.
71200 kilometers

78 US dollars

Front and rear fan motor relays for HVAC draft; Mazda TSB 07003/11 instructs dealers to replace both
66300 kilometersThe air conditioning fan in front of the car was very noisy. I looked it up and realized it could be due to a clog in the condenser drain leaking on the passenger floor. After draining, the fan motor stopped working. We have to take it to the shop now.
73900 kilometersThe tires had to be changed, but the TPMS (Tyre Pressure Monitoring System) was also examined. It doesn't seem to matter if I have old or new tires, within a matter of weeks the TPMS light and buzzer seem to go off. These systems are more trouble than they're worth.
82000 kilometerstire pressure sensor
89000 kilometers

150 US dollars

Clogged air conditioning caused water on the passenger floor and the air conditioning did not work at full capacity. This is the second time in 3 years that this has happened. The first time we fixed it ourselves.
101000 kilometers

100 US dollars

AM radio no longer works. All the rest of the audio was fine. The dealer changed the Bose radio. Covered under the extended warranty but has an excess of $100.
137700 kilometersKeyless entry doesn't work. You must use the emergency key to start the car.
153000 kilometers

1000 US dollars

The starter motor was faulty
174000 kilometers

1400 US dollars

replace alternator
3100 kilometersThe right driver's window did not move properly and rattled when lowered halfway while driving. Action Taken: Replaced window motor and realigned window to align properly.
114700 kilometers

110 US dollars

The original battery could not start the car. Replaced with a new battery from the dealer, installed it myself.
7000 kilometersThe airbag sensor in the front bumper failed and sent a signal to the dash. Never used accidentally, Mazda repaired for free, even provided a rental car as the repair took 2 days.

go back up

2008 Mazda CX-9

unspecified engine

58900 kilometersThere was a power leak that caused the battery to drain. I had 3 companies check the problem but none could find the cause. That's why I sold my CX-9.

go back up

2008 Mazda CX-9 4-door SUV

273 hp 3.7-liter V6 6-speed automatic with front-wheel drive

4000 kilometersThe faulty watch lost 30 seconds every week.
56000 kilometers

30 US dollars

The air conditioning did not turn off with the car. Relay replaced.
101500 kilometers

85 US dollars

The air conditioning drain tube was clogged. Water was dripping on both front floorboards. Blockage cleared to allow water to drain properly.
125900 kilometers

150 US dollars

The seat switch that controls the seat tilt has stopped working. I bought the switch on the store recommendation only to find out that the problem is with the control module and I don't want to spend more trying to fix it.
162000 kilometers

50 US dollars

The air conditioning drain tube was clogged. Water was dripping on both front floorboards. Blockage cleared to allow water to drain properly. Second time.
10000 milesSirius radio not working properly
27000 kilometers
17000 kilometersThe Bluetooth speaker did not work. Factory installed incorrect wiring harness for upgraded sound system. Replaced by dealer with correct wiring harness and system is now working properly.
28000 kilometers

20 US dollars

The little yellow bulb in the park burned out.
95500 kilometers

400 US dollars

When the ignition is turned off, the rear air blower runs at full power. This is a known and common issue with the CX-9. The dealer knew exactly how to replace the relay to fix it.
34000 kilometersThe front air conditioning fan stayed on after the engine was turned off. R&R relays under original warranty.
36200 kilometersThe air conditioning comes back on after the engine is turned off. Replacing the air conditioning relay fixed the problem.
75000 kilometers

500 US dollars

The driver's power door actuator has failed. Replaced by new ones. a part was 180 the rest was work

go back up

2008 Mazda CX-9 4-door SUV

273 hp 3.7-liter V6 6-speed automatic with all-wheel drive

20000 milesThe climate control system goes crazy when it's cold.
20800 kilometersA/C fan turns on when parking (faulty relay)
77000 kilometers

85 US dollars

Faulty TP sensor.
78000 kilometers

2000 us dollar

The driver window no longer works. I needed a new engine. It works after the repair, but the auto upload or download function no longer works.
5000 kilometersThe parking lights did not come on when the vehicle was started remotely. The dealer fixed the broken wire.
8000 kilometers

68 US dollars

The air conditioning was inactive when the vehicle was started remotely. Wiring harness replaced.
17000 kilometersFixed a loose wire in the Mazda remote start harness.
17000 kilometersThe dealer forgot to initialize the remotes for the remote start on the last visit.
20000 milesRemote start does not work. Distributor unable to duplicate, started working without repairs.
45300 kilometers

250 US dollars

The heater fan makes a ticking noise. replaced fan.
42340 kilometers


I asked for a keychain.
46500 kilometersThe navigation/reversing camera display resolution completely fades in daylight. The dealer admitted that it seemed to be a problem and promised to look into a warranty replacement.
52080 kilometersI ordered a new navigation device from the dealer. Seems hard to get.
88000 kilometers

100 US dollars

Door lock failure.
110000 kilometers

300 US dollars

External electric switch for the lock on the driver's door.
89000 kilometers

1600 US dollars

Hot AC on driver side, cooler on passenger side. Diagnostic, Low Freon, Leak Check did not identify a leak. The added freon now works correctly.
98000 kilometers

125 US dollars

Diagnosis: Passenger Side HID Headlight Has Stopped Working. Control module failure. The dealer asked for an additional $800 to fix it, but did not have a part in stock. The owner bought the part online and fixed it.
110000 kilometersAir Bag Inflator Recall - No Charge
60800 kilometers

890 US dollar

The air conditioning did not stop after turning off the engine.
13000 kilometersTSB - Driver Seat Electrical Wiring Harness Repaired.
15000 kilometersTSB - Faulty ABS warning light
49000 kilometers

850 US dollars

The left side blind spot monitor module failed and required replacement.
66300 kilometers

220 US dollars

air bag connector
44000 kilometersThe fuel gauge was not showing the correct amount of fuel in the tank and I ran out of gas. The fuel gauge was faulty. Replaced by dealer free of charge.
15000 kilometers


Defrost did not work on remote start.
8000 kilometersbad connection between remote start and ignition switch
88000 kilometers

23 US dollars

Front and rear swapped fan relays
81000 kilometers

450 US dollars

The two car credit card keys have problems. The car doesn't recognize it at all and the car won't start even with the manual key inserted. The other cannot maintain contact with the battery, so it only works intermittently.
134000 kilometers

1046 US dollar

“White powder” released into the ventilation system by the deterioration of the evaporator core and expelled through the vents into the vehicle. This may have been the result of a previous clog in the evaporator drain line.
142000 kilometers

15 US dollars

Replaced the fan relay (front and rear) because the fan stays on for up to a minute after the vehicle is turned off. Known issue with this model.
27500 kilometersFixed tailgate interior light switch (tight connections) only working sporadically when tailgate is open. Tailgate light (when tailgate is open) only worked sporadically. The dealer tightened the bulb connections. It works fine now.
49000 kilometers

125 US dollars

When the engine was turned off, the cabin fan came on even if the system was off. Apparently a known issue at Mazda as the dealer knew immediately that an electrical part needed replacing. The fan would not turn off even when the engine was off. Electronic control replaced. The dealer knew of this problem right away, so it must be common.
96000 kilometers

250 US dollars

The condensation drain was clogged resulting in water in the passenger side footwell. I cleaned out the drain and replaced the fan motor as it was in a puddle of water (due to poor condensation drainage) and only ran intermittently.
17000 kilometersThe remote start control unit had to be replaced.
86300 kilometers

577 US dollar

The battery was dead and was replaced.
89500 kilometersYou need a new battery.
36000 kilometersThe rear air conditioning unit does not respond to rear inputs, it can only be controlled from the front panel. Replaced rear transmitter board.
23000 kilometersReplaced fan motor Replaced fan motor
42900 kilometers

350 US dollars

The driver's door power lock was not working, needed new actuators.
46300 kilometers

300 US dollars

The A/C motor burned out because the condensate drain was blocked and it overflowed into the motor. The dealer wanted 910.00 for repair. Assembly recycled online for 200.00. It took longer to clean the drain than it did to replace the motor. I also changed 2 fan relays.
74000 kilometers

834 us dollar

Clogged AC condensate drain. The container filled with water will destroy the fan motor.
35000 kilometers

60 US dollars

The passenger door lock does not work. The engine had to be replaced
75000 kilometers

140 US dollars

Frozen AC line, had to be cleaned due to cabin air filter replacement
143000 kilometers

1200 US dollars

Clogged water buildup at air inlet on motor wall, shorted AC compressor, solenoid and other A/C electrical functions.
145000 kilometers

1700 US dollar

The coil is leaking along with the seals and others
162200 kilometers

1700 US dollar

The capacitor and some other parts need to be replaced. Coil changed last year
182000 kilometers

1250 US dollar

Replace Driver Side Headlights
215000 kilometers

2700 US dollars

The alternator failed because fluid from the power steering pump leaked on it.
232000 kilometers

3000 US dollars

Replacement of the entire air conditioning system.
74000 kilometers

50 US dollars

Replaced passenger side power window.
94000 kilometers

50 US dollars

The auxiliary port died and had to be replaced
24500 kilometersThe left front window motor was loose in the door causing rattling and intermittent stall issues. Replaced relays that caused the air conditioner to run when the ignition was turned off.
43000 kilometers

90 US dollars

Replaced the HVAC fan relay. Known issue on CX-9.
46000 kilometers

32 US dollars

HVAC fan relay failed
56000 kilometers

60 US dollars

The air filter and fan are clogged with dust, causing condensation to collect and overflow into the passenger footwell. cleaned of dust. Fan shorted, fan replaced

go back up

2008 Mazda CX-9 4-Wheel

6 cylinder automatic AWD

1000 milesThe "brain" of the computer chip does not work; continuously discharged battery; can't start CX9 in the morning/has to jump; in business for 20 days; I'm still waiting on a backordered piece; "it's a new car...we don't have the part..." Never buy a Mazda. The automatic air conditioning does not work properly, the vehicle does not heat up; You have to manually override to warm up the car. "We don't see any problem"...wish they would drive the car when it's cold, with kids...on the other hand...we haven't...from the dealer...
1000 milesThe smart key does not work again; Can't turn on or open/close door with remote

go back up

2007 Mazda CX-9 4-door SUV

263 hp 3.5-liter V6 6-speed automatic with front-wheel drive

67000 kilometers

400 US dollars

Error de Bluetooth
67300 kilometers

175 US dollars

The Bluetooth module failed. Had to be completely replaced Weather sensor relay burned out. The fan came on when the vehicle was parked.
78000 kilometers

1200 US dollars

Filters replaced and boxes cleaned.
5000 kilometersAccording to the repair report, the satellite radio ant has an internal error.
5000 kilometersboth wireless headphones for the RES system physically broken. Replaced as a goodwill gesture to the client
14000 kilometersThe headphones were replaced as a courtesy to the customer, but TSB came out after they were replaced.
59000 kilometersThe airbag went off spontaneously while driving! Big security problem! Engr from Japan was flown in to investigate. Replaced steering wheel, airbag, clockspring, and airbag module SAS unit. Mazda paid for it. He had family in the car. frightening.
6000 kilometersReplaced battery on "chip card" - remote never worked - replaced "missing" hour clock, replaced module, shifted vehicle to the left, checked by TSB
9000 kilometersReplaced faulty remote start remote control. Paid to use a coupon issued by Mazda. The dealer would not replace under warranty. The replacement watch is still losing time, about 1 minute per month. Car keeps pulling, dealer says "go to the tire shop and fit all the tires
12000 kilometersThe clock "loses" time and finishes two minutes late. The dealer replaced the clock module once and said there is nothing more they can do until Mazda issues a TSB.
25000 kilometersTook the car for a second clock/radio display as the first replacement couldn't keep accurate time either. I doubt it will work, I think it is "throwing pieces" to the problem. A new gas cap was also installed as the cord had broken.
26000 kilometersThe clock/radio display was replaced a second time. This time it seems to be keeping accurate time.
29000 kilometersCD player blocked. CDs will not play, CDs will not eject. All other audio functions are normal. I ordered a new CD player. It will be changed and originally sent to Bose to get the CDs.
90000 kilometersHole in condenser (may be rock), condenser replaced at Firestone. The controls at the rear no longer work properly. Air continues to flow, but fan control does not work. I dropped a part and I can't find it (spring). Since the air is still flowing when the controls are turned off (front controls), I leave it alone.
111000 kilometers

75 US dollars

The fan motor has failed... probably due to water backing up from a clogged drain a few months ago. Changed fan and all good. Easy job too.
152000 kilometers

50 US dollars

I needed a new battery.
30000 kilometersThe clock ticked slowly. I don't know if it's already fixed. Car headlights sometimes stay on after leaving the garage when it is light, and sometimes go off immediately.
36000 kilometersThe rear fan did not turn off. I had to replace a squeaky relay AC fan motor.
88500 kilometers

280 US dollars

Blue tooth has stopped working. Called Mazda Blue Tooth support. You walked me through the diagnoses. I called two dealers and they told me that the Blue Tooth module needed to be replaced at an incredible cost of around $700. Disconnected battery and problem solved AC drain blocked
102900 kilometersclogged drain
54000 kilometers

13 US dollars

The HVAC fan came on at full volume when the car was turned off. It happened from time to time. I googled a problem and found a TSB saying the relays need to be replaced. The dealer just charged me for parts as it only took 2 minutes to install.
119100 kilometers


The front fan no longer works. I bought a third party fan and fixed it myself.
13640 kilometersThe shop replaced the A/C filter which has smelled since day one and still smells but after the replacement my fan in my HVAC system sounded like it was taking off on a plane. clock lost time... clock replaced. Time seems to be holding now.
38000 kilometers

100 US dollars

Rear HVAC fan kept running after car was turned off (key removed). Device replaced by dealer. Covered under Expanded WTY. Rear HVAC fan kept running after car was turned off (key removed). Device replaced by dealer. Covered under WTY.0 extended

go back up

2007 Mazda CX-9 4-door SUV

263 hp 3.5-liter V6 6-speed automatic with all-wheel drive

49000 kilometers

823 US dollar

Diagnosis and repair of the HID controller. HID driver $588.22. Outrageous for an electrical part.
65720 kilometers


Replaced condensing unit. He had a leak. The fan blows when the car is off.
5000 kilometersThe navigation would randomly become very dark and almost unreadable. There may be a problem with the light sensor.
11000 kilometersNavi still sporadically darkens, dealer replaced windshield and light sensor.
5000 kilometersDefective front swing door light switch at delivery - 8/2007. 2/2008 I finally got the part and fixed it.
21000 kilometersReplaced defective smart card key.
9800 kilometersThe front windows and the roof windows open when the vehicle is parked and parked. I went into a shop and looked back at the vehicle only to see the windows and sunroof open by themselves. Not a bad thing in the summer, but it was pouring with rain and all.
75000 kilometersClock and display were not working properly, windows motors were faulty
142300 kilometers

900 US dollars

Complete AC replacement
1000 milesThe doors could not be locked.
37000 kilometers

56 US dollars

The rear door electric lock does not work. The cable had come loose.
130000 kilometersRemote start failed, horn honked continuously, car would not start. Removed the remote start fuse to disable it, that was the last straw and the reason I sold it.
172900 kilometers

50 US dollars

left headlight
195000 kilometers

1214 us dollar

Air conditioning compressor (replacement) plus filter, compressor oil, filling and leak test
202000 kilometersAirbag recall, possible shrapnel Headlights replaced: one was out
230000 kilometers

1000 US dollars

Replacing the a/c compressor where the radiator fell apart. both replaced
89000 kilometers

15 US dollars

I had to change the headlights
43000 kilometers

400 US dollars

Fine white particles throughout the car when using HVAC. Fine white particles continued to come out through the interior - Replaced part to correct problem.
80300 kilometersBluetooth stopped working. Bluetooth was unable to connect to the phones (any) and stayed connected. The pairing would fail or take a long time. Once connected, it did not stay connected.
45000 kilometersAirbag warning light Special service program 78 - The wiring of the accessory sockets can cause a warning from the airbag control unit.
46000 kilometersTailgate keyless entry sensor failed. Replaced faulty keyless remote sensor
23000 kilometers

169 US dollar

Replaced A/C Heater Fan Relay per TSB 07-005/10. Replaced rear A/C heater panel due to faulty fan controller. Replaced A/C Heater Fan Relays per TSB 07-005/10. Replaced rear A/C heater control panel due to failed fan control.
17000 kilometersAirbags stopped working - indicator lights came on - TSB 08-003/08 - Parts installed, modifications made, failed, repair successful
160000 kilometers

150 US dollars

Clogged AC evaporative drain that leaked into passenger side floor
8000 kilometers11/11/2011 Air conditioning - started blowing hot air - needed to reprogram - Mazda had a service call but didn't notify anyone - only reset if owner has problems

go back up

2007 Mazda CX-9 4-Wheel

6 cylinder automatic 2WD

35000 kilometersAC exhaust fan.
48000 kilometersRepaired fuse for remote start where air conditioning and wipers were not working due to winter.

go back up

2007 Mazda CX-9 4-Wheel

4 cylinder automatic 2WD

34000 kilometers

80 US dollars

Clogged air conditioning. This filled the engine with water and the air conditioning did not work. The repair cost $80.

go back up


What is the major problem of Mazda CX-9? ›

Water pump failure - According to, the number one problem of the CX-9 is its faulty water pump, mainly due to collateral damage. Once the water pump fails, the coolant leaks into the engine oil and may lead to engine failure.

How much does it cost to replace an alternator in a Mazda CX-9? ›

The average cost for a Mazda CX-9 Alternator Replacement is between $774 and $826. Labor costs are estimated between $178 and $225 while parts are priced between $596 and $601.

What is TCS on my Mazda CX-9? ›

Traction Control System (TCS)

What is the lifespan of a Mazda CX-9? ›

The Mazda CX-9 Life Expectancy

A Mazda CX-9 should typically range between 200,000 and 250,000 miles, which is a good number for mid-sized SUVs if you travel 15,000 miles yearly because they will last at least 13 and slightly longer than 16 years.

What are the most common problems with Mazda? ›

Variable Valve Timing and Stretched Timing Chains

Mazda's L-series engines are earning a reputation for variable valve timing (VVT) defects that can cause oil leaks, excessive smoke out of the tailpipe, loose timing chains, and catastrophic engine failure.

Is the Mazda CX-9 being discontinued? ›

The 2023 Mazda CX-9 is being discontinued —although being replaced is more the case. Coming next year is the new flagship vehicle from Mazda. The CX-90 will replace the CX-9 in the Mazda SUV lineup.

What are the symptoms of a faulty alternator? ›

7 Signs of a Failing Alternator
  • Dim or Overly Bright Lights. ...
  • Dead Battery. ...
  • Slow or Malfunctioning Accessories. ...
  • Trouble Starting or Frequent Stalling. ...
  • Growling or Whining Noises. ...
  • Smell of Burning Rubber or Wires. ...
  • Battery Warning Light on Dash.
Aug 24, 2020

How do I know if my alternator is bad? ›

First, open the hood and start the car. While the engine is running, remove the negative cable from the battery. If the vehicle stalls or dies, the alternator is likely bad. This happens because the alternator is not generating enough electricity to keep the engine running on its own.

At what mileage should alternator be replaced? ›

Alternators have an impressive lifespan of seven years–or between 80,000 to 150,000 miles. But be careful that you are not wearing it out prematurely!

Should I drive with TCS on or off? ›

You should leave your traction control at all times so that you can benefit from this important safety feature. However, in very rare circumstances, you may need to turn the traction control off temporarily.

Should I have TCS on or off? ›

It's important to keep traction control on 99% of the time when you're driving. However, there are some cases where the safety feature could do more harm than good. For example, it's better to keep it off if you get stuck in the mud, sand, or even snow.

What is a TCS malfunction? ›

A failing wheel speed sensor, or damages in its wiring, disrupts the connection between the wheel and TCS computer. This prevents the TCS working on that wheel, so the light will illuminate and stay lit until addressed. It may even turn on a “TCS off” light to indicate the system is not functioning.

Is Mazda CX-9 worth buying? ›

Yes, the 2023 CX-9 is a good midsize SUV. Upscale materials adorn the tech-rich interior, and the front seats coddle you in comfort. This Mazda drives more like a sporty sedan than a crossover, with spunky acceleration and eager, responsive steering.

Do Mazda CX-9 have transmission problems? ›

It's a type of car problem that's not hard to notice. Mazda CX-9 transmission problems can present themselves as shifting delays, grinding when accelerating, the car shaking on the road, or whistling noises or a burning smell coming from beneath the hood.

Is the Mazda CX-9 engine reliable? ›

We expect the 2023 CX-9 will have about average reliability when compared to the average new car. This prediction is based on data from 2020, 2021 and 2022 models.

Are Mazdas expensive to fix? ›

On average, Mazda models are less expensive to repair than the industry average for all vehicles. Depending on how frequently your vehicle requires maintenance, the average cost will range.

Is Mazda as good as Honda? ›

Honda and Mazda both maintain top marks for reliability and are found within the top 5 in Consumer Report's Most Reliable Brand rankings. Both brands also offer the same 3yr/36,000-year limited warranty as well as a 5yr/60,000-mile powertrain warranty.

Is Mazda as good as Toyota? ›

In a recent study by JD power, Mazda received an overall reliability rating of 83. In contrast, Toyota received a rating of 72, making Mazda the most reliable and Toyota the 5th most reliable brand.

What will replace the Mazda CX-9? ›

The CX-90 will be a new nameplate for the Mazda brand when it goes into production sometime in 2023. It is unknown if the CX-90 will replace the current CX-9 in Mazda's lineup or if it will be offered alongside the smaller three-row model moving forward.

Will there be a 2023 Mazda CX-9? ›

The joys of driving begin with a feeling of confidence and safety behind the wheel. That's why we're proud to announce that the 2023 Mazda CX-9 has earned a 2022 IIHS Top Safety Pick+ award and a 5-star overall safety rating from the National Highway Traffic Safety Administration.

What is replacing the CX-9? ›

Yes, the Mazda CX-90 will replace the Mazda CX-9 as the brand's premium three-row SUV. It will enhance the benefits you'll find in a Mazda CX-9 and arrive on a new platform.

What is the most common fault with an alternator? ›

One of the most common problems you're likely to experience with an alternator is a failure in the bearings. There are needle bearings in the alternator that allow the rotor to freely spin inside the housing, and those bearings can break down over time as a result of exposure to heat and dirt.

How does a car act when it needs a new alternator? ›

Your car's onboard computer will cut the power to non-vital accessories when the alternator is not producing enough electricity. You will notice several issues at once. For instance, the windows will operate slower, the sunroof will get stuck, and the heated seats will not work as they should.

Will a bad alternator throw a code? ›

If you have a “Check Engine" light on, connect a code reader to the diagnostic port. If you find code P0562, you very likely have a failing alternator (note that codes may vary by vehicle make/model/year). Get it checked out before it fails entirely.

How do you tell the difference between a bad battery and a bad alternator? ›

Jumpstart your car. If you can turn the engine on, but it dies shortly thereafter, your car alternator likely isn't able to charge the battery. On the other hand, if you jumpstart the car and later on it fails to start on its own, it's likely a dead battery.

How do I know if my alternator fuse is blown? ›

The charging system warning light on the dashboard will likely illuminate if the alternator fuse is blown. A blown alternator fuse can also trigger the check engine light and many other dashboard warnings due to system undercharging.

How can I test my alternator without removing it? ›

“With the car running, you can turn on all the heavy loads; turn on the heater blower motor, turn the lights on, etc.,” he tells us. “Then check the voltage at the battery terminals. That'll give you a general idea of the health of the alternator.”

What kills an alternator? ›

Most of the time, alternators fail as a result of age or use. However, some other factors can cause an alternator to fail prematurely. Fluid leaking on the car alternator can commonly lead to failure. Often, engine oil or power steering fluid can work its way into the alternator and cause it to malfunction or fail.

What happens when an alternator goes out while driving? ›

What happens when alternator stops working while driving? The car tends to slowly lose power if the alternator has gone bad while the car is being driven. You'll notice the headlights start to dim shortly before the car loses power and dies.

Is it worth fixing the alternator? ›

Alternator issues won't go away on their own. They'll need to get fixed eventually, and if you wait too long, the issues might become more serious, leading to more expensive repairs and higher bills for you to pay. If you get the issue fixed early on, the repair will usually be much simpler and cheaper.

What causes traction control to malfunction? ›

Traction control and ABS most commonly develop problems with the wheel speed sensors. These sensors are moderately exposed to the elements, leaving them slightly vulnerable. The magnetic operation on the traction control sensors or Anti-lock Braking sensors can be interrupted by dirt or other buildups.

How much does it cost to fix a traction control system? ›

Traction control system switch: Traction switch replacement may cost around $111 to $125. This includes labor charges ($56 – $71) and spare parts ($54). Wheel speed sensor: The estimated cost of wheel speed sensor replacement is around $208 to $250, including labor costs ($62 – $78) and parts ($146 – $177).

Why is my car shaking and the traction control light? ›

Recommended Services. The vehicle's shaking may be caused my improper signals going to the traction control system and in return the traction control system is trying to correct a problem based off of improper signals.

Why is TCS preferred? ›

About 23% employees (from the 4,600+ responders) think that TCS is a brand that can help them boost their career. Another important factor that lures the workforce towards TCS is the company's work environment. About 16% of employees voted TCS for providing a favourable and healthy work environment.

What does it mean when your traction control light comes on? ›

In some cases, the warning light may come on because wheel-speed sensors are covered with road grime or debris. When the traction control warning light stays on, that means you aren't getting any help from the system to control traction and the system needs to be checked.

Where is the traction control sensor located? ›

In some vehicles it is located under the hood and/or is a part of the ABS control module. Other vehicles may have the traction control module located in the interior or trunk areas.

What are the symptoms of a bad traction control module? ›

Common signs include the Traction Control System (TCS) Light coming on, TCS not turning off/on, and loss of TCS or ABS features.

What is TCS off in Mazda? ›

Traction Control System (TCS)

This means that on a slick surface, the engine adjusts automatically to provide optimum power to the drive wheels, limiting wheel spin and loss of traction. A system malfunction or operation conditions are indicated by a warning.

What is TCS sensor? ›

The traction control system (TCS) detects if a loss of traction occurs among the car's wheels. Upon identifying a wheel that is losing its grip on the road, the system automatically applies the brakes to that individual one or cut down the car's engine power to the slipping wheel.

What is the common problem in Mazda CX-9? ›

Brake issues have been the number one complaint about the Mazda CX-9 across all-year models.

Does Mazda CX-9 need premium gas? ›

Fuel with a rating lower than 87 octane (91 RON) will negatively affect the emission control system performance and could also cause engine knocking and serious engine damage. USE ONLY UNLEADED FUEL.

Which year of CX-9 is best? ›

While some are enjoyable to drive, others are not. The best Mazda CX-9 years are 2017, 2018, 2019, and 2020. These are the models that function the best and have the fewest issues. Conversely, the worst years for Mazda CX-9 are 2010, 2011, 2012, and 2013.

How often do you change the transmission fluid in a Mazda CX-9? ›

As a result, there's not really much maintenance to perform. Still, most owner's manuals will recommend changing the transmission fluid every 90,000 miles or so.

Is the CX-9 being discontinued? ›

The 2023 Mazda CX-9 is being discontinued —although being replaced is more the case. Coming next year is the new flagship vehicle from Mazda. The CX-90 will replace the CX-9 in the Mazda SUV lineup.

Does Mazda CX-9 have a timing belt? ›

Newer models use timing belts made of polyurethane and Kevlar for long life and durability. They can go as long as 100,000 miles although it's always a good idea to change it before then.

What is the most reliable used SUV on the market? ›

The Most Reliable Used SUVs in America
  • Honda CR-V. The Honda CR-V is one of the most popular and best SUVs in America. ...
  • Toyota Rav4. The Rav4 is one of Toyota's “Core Four” vehicles alongside the Camry, Corolla, and Prius. ...
  • Chevrolet Traverse. ...
  • GMC Yukon. ...
  • Toyota Highlander. ...
  • Kia Sorento. ...
  • Ford Expedition. ...
  • Hyundai Tucson.
Jul 13, 2022

Is Mazda CX-9 a reliable car? ›

Is the Mazda CX-9 Reliable ? The 2022 Mazda CX-9 has a predicted reliability score of 80 out of 100. A J.D. Power predicted reliability score of 91-100 is considered the Best, 81-90 is Great, 70-80 is Average, and 0-69 is Fair and considered below average.

Does the Mazda CX-9 have transmission problems? ›

It's a type of car problem that's not hard to notice. Mazda CX-9 transmission problems can present themselves as shifting delays, grinding when accelerating, the car shaking on the road, or whistling noises or a burning smell coming from beneath the hood.

Which CX-9 is the best? ›

Best CX-9 Class setup in Warzone Season 5
  • Muzzle: Monolithic Supressor.
  • Laser: 5mW Laser.
  • Magazine: 50 Round Drums.
  • Stock: CX-FR.
  • Perk: Sleight of Hand.
Oct 1, 2022

Does the Mazda CX-9 have a Ford engine? ›

The first generation CX-9 was originally fitted with a 3.5 L Ford V6 engine, but, in 2008, the engine was changed to a 3.7 L unit producing 204 kW (274 hp) and 366 N⋅m (270 lb⋅ft) of torque. The updated engine was introduced in June 2007 and it was now built by Mazda themselves.

What Mazda is replacing the CX-9? ›

What's New for 2024? The CX-90 will be a new nameplate for the Mazda brand when it goes into production sometime in 2023. It is unknown if the CX-90 will replace the current CX-9 in Mazda's lineup or if it will be offered alongside the smaller three-row model moving forward.

How much should I pay for a Mazda CX-9? ›

The 2023 Mazda CX-9 starts at $38,750.

How much is the new transmission of Mazda? ›

Transmission repair can be an intimidating undertaking, and when it seems inevitable, you're likely left wondering, “how much is a transmission?” Transmission cost for your specific car depends on which new Mazda model you drive, but typically, a transmission cost typically ranges from $1,800 to $3,400.

Why is my Mazda CX-9 shaking? ›

Any unusual shaking or vibrating forces coming from the engine is cause for concern. It could be something as simple as old spark plugs producing an uneven power delivery, it could be something serious like worn or broken engine mounts, or it could be even more serious in the case of internal engine damage.

Is Mazda CX-9 a luxury car? ›

It might be the materials used, or perhaps the seats aren't comfortable, or the layout is clunky. But the Mazda CX-9 isn't like that. Instead, you get luxury everywhere you look - even in the base models. The materials used in the interior are all excellent quality.

How far can a Mazda CX-9 go on a full tank? ›

The 2021 Mazda CX-9 has a driving range of over 390 miles.

Top Articles
Latest Posts
Article information

Author: Francesca Jacobs Ret

Last Updated: 03/12/2023

Views: 6028

Rating: 4.8 / 5 (48 voted)

Reviews: 87% of readers found this page helpful

Author information

Name: Francesca Jacobs Ret

Birthday: 1996-12-09

Address: Apt. 141 1406 Mitch Summit, New Teganshire, UT 82655-0699

Phone: +2296092334654

Job: Technology Architect

Hobby: Snowboarding, Scouting, Foreign language learning, Dowsing, Baton twirling, Sculpting, Cabaret

Introduction: My name is Francesca Jacobs Ret, I am a innocent, super, beautiful, charming, lucky, gentle, clever person who loves writing and wants to share my knowledge and understanding with you.