2021 Mazda CX-9 Back-over prevention (rear camera) Problems
- Complaints
- 2about this part
- Share
- 5%of 40 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the back-over prevention of the 2021 Mazda CX-9, 5% of the 40 complaints for this model year. 1 of these say a crash was involved, 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.
“On 4/30/2022 the rear door lift gate opened unexpectedly and hit the ceiling of a parking garage (The Summit at Las Calinas, Irving Texas) , the glass window shattered, glass fell in and outside the car. An unfamiliar beeping was heard before the accident, but the source could not be located prior to the impact with the ceiling. A lift gate ajar warning indicator light likely flashed on the dash but was not noticed. We surmised that the root cause was likely due to unintentional pressing of the rear lift gate key fob button (driver had put key fob in pants pocket). …”
NHTSA complaint #11463223, filed 2022-05Back-over prevention (rear camera): other model years
Other parts of the 2021 Mazda CX-9
21 complaintsOther or unknown
6 complaintsTransmission and drivetrain
5 complaintsBrakes
4 complaintsForward collision avoidance
4 complaintsVehicle speed control
3 complaintsAir bags
2 complaintsElectrical system
2 complaintsSteering
1 complaintsSuspension
1 complaintsTires
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaints
← All problems reported for the 2021 Mazda CX-9
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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