2008 Mazda CX-9 Electrical system Problems
- Complaints
- 13about this part
- Share
- 8%of 172 total for the year
- Median mileage
- 106,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 13 complaints about the electrical system of the 2008 Mazda CX-9, 8% of the 172 complaints for this model year. Where a mileage was given, the median is 106,000 miles. 1 recall campaign on record is filed under a similar system.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Rear passenger door will not open from inside car this is a safety problem has anyone else reported this problem.I took it to the dealer they said some kind of sensor had to be replaced at a cost of 700.00 dollars I dont think I sould have to pay out of my pocket.I transport my grandkid around and if a something happens they would not get out”
NHTSA complaint #11121594, filed 2018-08, 150,000 miles“One day, my keyless don stopped working. The next day the door kept locking while I was driving almost every time I turned the steering wheel. Then the drivers door wouldn't unlock, when I manually unlocked the door it was hard to do. I luckily had the windows rolled down, got out the vehicle and as soon as I shut the door I hear the door lock and my two year old was in the backseat! Again luckily I had the windows rolled down otherwise she might've been stuck! Then the alarm kept going off and wouldn't turn off until I unhooked the battery. Imagine my frustration. …”
NHTSA complaint #11246517, filed 2019-08, 106,000 miles“When accelerating after driving for a few minutes maybe 10-15 after the vehicle has had time to warm up, as I am applying pressure to the gas pedal and it is shifting into gears (usually into gears 3,4, & 5) the vehicle is showing that it is into the next gear but you feel it shift after the fact so it is delayed and as accelerating it feels as though it is lagging and trying to shift but can't fully right away. I am only submitting this complaint because I know a couple others with this make of vehicle but different years and they stated they have the same issue with their vehicle as well”
NHTSA complaint #11269310, filed 2019-10, 104,000 miles“I'm thankful I was not going 75mph on the highway with my children in my car instead I was driving 30 MPH coming to a stop at a red light on a small city street my Mazda CX-9 without a warning started hiccuping and came to a complete stop and not able to power up again we had it towed to a Mazda dealer was told our make model of car has a TSB code issued code # 01-026/11 dealer told us car needs new PCM (computer) and new coils they weren't sure if coils ruined PCM or PCM damage coils. Spoke to manufacturer they admitted they have seen issue but that my car is 40000 miles over warranty. …”
NHTSA complaint #11104663, filed 2018-06, 120,000 miles“Sometimes the blind signal works sometimes it doesn't sometimes it blinks on the screen and when switching lanes, brakes keeps going out ball joint keeps popping hard shift or knock in reverse and when placed in park had repair done several times. Dvd wires keeps going out/shortage m. Sometimes seat belt blinker work and sometimes it doesn't”
NHTSA complaint #11406363, filed 2021-04, 225 milesRelated recalls
- 09V066000Feb 23, 2009Mazda is recalling 30,600 my 2007-2009 cx9 vehicles equipped with power adjustable seat with position memory function. The seat harness routed underneath the…Covers: Mazda CX-9 2007–2009
Related service bulletins
- 11037899Sep 11, 2026DESCRIPTION If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...), interview the customer before proceeding with normal MGSS…
- 11034447Jun 19, 2026This SA supersedes the previously issued SA(s) listed below. The changes are noted in Red. SA-061/25 12/17/25 DESCRIPTION If you encounter any type of electrical concern (e.g…
- 11026917Dec 17, 2025If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...), interview the customer before proceeding with normal MGSS diagnosis by…
- 11007019Aug 15, 2024If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...), interview the customer before proceeding with normal MGSS diagnosis by…
- 11006987Aug 8, 2024In accordance with Federal regulations, follow the procedure listed below when replacing a speedometer. NOTE: Tampering with a motor vehicle odometer is strictly prohibited by…
- 10244679Oct 11, 2023If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...), interview the customer before proceeding with normal MGSS diagnosis by…
- 10237216May 24, 2023If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...), interview the customer before proceeding with normal MGSS diagnosis by…
- 10232299Feb 28, 2023Speedometer replacement procedure
- 10226924Nov 14, 2022If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...), interview the customer before proceeding with normal MGSS diagnosis by…
- 10217209Jul 18, 2022In accordance with Federal regulations, follow the procedure listed below when replacing a speedometer.
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2023 | 1 | 8% |
| 2022 | 2 | 18% |
| 2021 | 2 | 5% |
| 2020 | 4 | 21% |
| 2019 | 7 | 13% |
| 2018 | 15 | 12% |
| 2017 | 2 | 3% |
| 2016 | 14 | 13% |
| 2015 | 1 | 3% |
| 2014 | 2 | 4% |
| 2013 | 1 | 1% |
| 2012 | 5 | 2% |
| 2011 | 6 | 4% |
| 2010 | 6 | 3% |
| 2008 | 13 | 8% |
| 2007 | 6 | 7% |
Other parts of the 2008 Mazda CX-9
55 complaintsBrakes
30 complaintsAir bags
28 complaintsTransmission and drivetrain
27 complaintsSteering
19 complaintsWheels
16 complaintsOther or unknown
13 complaintsSeats
7 complaintsEngine
6 complaintsVehicle speed control
3 complaintsVisibility (wipers, defrost, mirrors)
3 complaintsElectronic stability control
2 complaints
← All problems reported for the 2008 Mazda CX-9
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology