2010 Mazda CX-9 Electrical system Problems
- Complaints
- 6about this part
- Share
- 3%of 195 total for the year
- Median mileage
- 44,521miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 6 complaints about the electrical system of the 2010 Mazda CX-9, 3% of the 195 complaints for this model year. Where a mileage was given, the median is 44,521 miles.
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.
“I purchased a 2010 cx9 about a month ago and got pulled over last night for my driver side head light being out, I took it to the shop and was charged $194 for the bulb replacement, but it did not work and was charged another $130 for diagnostics . They found out that the ballast has blown out due to condensation in the headlight and now they are going to charge me again for the ballast and labor”
NHTSA complaint #11278590, filed 2019-11, 77,423 miles“Vehicle brakes lighting dim while coming to a stop and can not be seen from other vehicles approaching from behind on the road. When not replaced, stop light will run continually or not function, potentially causing premature bulb failure, safety issues and/or the transmission will not shift out of park. A failed stoplight switch will prevent the brake light from illuminating when the brake pedal is applied that may cause a collision and a life lost.”
NHTSA complaint #10664091, filed 2014-12, 60,000 miles“The automatic dimmer switched to low light setting in broad daylight for no apparent reason resulting in a dark instrument panel. Driver had to pull aside on a busy highway to try to restore daytime lighting. This is the safety aspect - loss of panel information while driving causing an emergency pull off and a distraction to the driver. The light sensor controlling both the panel and the day/night car lights was set to standard - default setting. It appears that this setting is too high. After insisting with the dealership, it was found that the sensor is programmable. …”
NHTSA complaint #10424849, filed 2011-09, 7,000 miles“I had engine failure with a complete loss of power and a shuttering of the steering wheel while pulling into a parking lot and going less than 30 miles per hour. The temperature gauze went from cold to hot suddenly. There were no leaks of coolant or oil and no signs that the engine was out of water or that the water pump had melted . On the final car repair trip we found out that the engine has an internal water pump that failed and resulted in oil & water getting into the engine. …”
NHTSA complaint #11460271, filed 2022-04Related 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 2010 Mazda CX-9
91 complaintsEngine
23 complaintsTransmission and drivetrain
23 complaintsAir bags
18 complaintsSuspension
16 complaintsVehicle speed control
9 complaintsOther or unknown
7 complaintsBody and structure
6 complaintsEngine cooling
5 complaintsExterior lighting
4 complaintsSteering
4 complaintsWheels
4 complaints
← All problems reported for the 2010 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