2011 Mazda CX-9 Electrical system Problems
- Complaints
- 6about this part
- Share
- 4%of 171 total for the year
- Median mileage
- 66,727miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 6 complaints about the electrical system of the 2011 Mazda CX-9, 4% of the 171 complaints for this model year. Where a mileage was given, the median is 66,727 miles. 2 a fire, according to the filers.
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.
“Our vehicle has water drains or weep lines for the sunroof. We recently had the electrical system stop/start, dash lights remain on constantly after sitting in the driveway during the rain. We learned that if the drains become blocked that water leaks into the cabin directly onto the body control module (bcm). Because the bcm is not in a sealed or water-proof case, yet is soaked in these conditions, the vehicle is subject to electrical failure as a result. Replacing the bcm costs about $1,000. …”
NHTSA complaint #11165496, filed 2019-01, 110,000 miles“While driving on interstate 77, north bound, at 55mph, other motorists informed me that my car was on fire underneath. There were no dashboard warning lights or signals that came on it light up as a warning sign. I pulled over to the side of the road, the fire department and sheriff's office put out the fire and the car was towed. The car is quite new and with very low mileage. Well maintained car. No recent work other than regular oil change. Mazda denies any problems with this car.”
NHTSA complaint #10658607, filed 2014-11, 30,345 miles“Odometer Fraud. The contact purchased a 2011 Mazda CX-9. The vehicle was a private sale. At the time of purchase, the mileage was 109,000. A mileage discrepancy was discovered when a Been Verified report indicated that the mileage was 294,000 in 2024. The contact stated that the seller informed him that she and her fiancé had replaced the cluster gauge.”
NHTSA complaint #11772658, filed 2026-10, 294,000 miles“The front door windows no longer work. Most recently, the drivers side back door will NOT open. The lock is completely jammed - will not open or shut, which is a safety hazard for my child. The plastic parts in this car are failing and putting my family at risk.”
NHTSA complaint #11480657, filed 2022-08“The contact owns a 2011 Mazda CX-9. While driving 45 MPH at night, the contact noticed a flickering light coming from the front end of the vehicle. The contact merged to the side of the road. After inspecting the vehicle, the contact noticed that flames engulfed the engine. The fire department extinguished the fire. A police report was filed. Neither the contact nor the passenger sustained any injuries. The cause of the fire was not determined. The vehicle was not repaired. The failure mileage was 65,000.”
NHTSA complaint #10681222, filed 2015-02, 65,000 milesRelated 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 2011 Mazda CX-9
99 complaintsTransmission and drivetrain
25 complaintsAir bags
22 complaintsEngine
15 complaintsSuspension
8 complaintsOther or unknown
6 complaintsElectronic stability control
4 complaintsSteering
4 complaintsVehicle speed control
4 complaintsExterior lighting
3 complaintsWheels
3 complaintsSeat belts
2 complaints
← All problems reported for the 2011 Mazda CX-9
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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