repaired · 2023 Q3
Seat belts: rear/other
Risk. A seat that slides forward during a crash can transfer excessive force onto a belted occupant, increasing their risk of injury.
2021 Mazda CX-9Problems, recalls & complaints
NHTSA has logged 41 owner complaints about the 2021 Mazda CX-9, most often about the engine. It is covered by 1 safety recall, and for recall 21V-750 the manufacturer reports only 85% of affected cars repaired.
Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through November 4, 2026. Updated daily. Photo: IFCAR, Public domain.
Complaints by system
Where the 2021 Mazda CX-9 has problems
41 complaints grouped by the system owners reported.
21Engine1 crash/fire/injury
5Power train2 crash/fire/injury
4Service brakes2 crash/fire/injury
4Forward collision avoidance1 crash/fire/injury
3Vehicle speed control1 crash/fire/injury
2Air bags
2Back over prevention
2Electrical system
1Suspension
55 other systems1 crash/fire/injury
| System | Complaints | Crash, fire or injury |
|---|---|---|
| Engine | 21 | 1 |
| Power train | 5 | 2 |
| Service brakes | 4 | 2 |
| Forward collision avoidance | 4 | 1 |
| Vehicle speed control | 3 | 1 |
| Air bags | 2 | 2 |
| Back over prevention | 2 | 1 |
| Electrical system | 2 | 0 |
| Suspension | 1 | 0 |
| 5 other systems | 5 | 1 |
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
1 recall
2021 Mazda CX-9 recalls and how many were fixed
Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.
Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Mazda.
Best & worst years
2021 vs. every other CX-9 year
Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the CX-9 median. How we score
'07'08'09'10'11'12'13'14'15'16'17'18'19'20'21'22'23
- Avoid
- Caution
- Solid
- Best
- Not rated
NHTSA crash tests
2021 Mazda CX-9 safety ratings
2021 Mazda CX-9 SUV AWD in NHTSA's New Car Assessment Program. Photos are from NHTSA's crash tests.
★★★★★
Frontal crash★★★★★
Side barrier★★★★★
Side pole★★★★★
- Rollover: 4 stars (15.9% risk)
- Stability control: Standard
- Forward collision warning: Standard
- Lane departure warning: Standard
In owners' words
What CX-9 owners report
Recent engine complaints filed with NHTSA, shortened. Personal details are removed.
2021 Mazda CX-9 (VIN: [VIN] / 72,400 mi) Vehicle has suffered complete, sudden loss of motive power at high freeway speeds on four separate occasions. Without warning, the engine loses all propulsion, essentially stalling mid-traffic and forcing me to dangerously coast across active freeway lanes…
The vehicle was parked stationary in the driveway with the engine running for 3-5 minutes with the A/C on. The vehicle then accelerated forward into my garage causing damage. Once I entered the vehicle, both the dash and shifter displayed park. Current TCU system internal failures have been…
1) What component or system failed or malfunctioned: On 6/12/2026 While drive on the highway with our daughter in the car and we experienced a high speed stall. The engine failed and we lost power. We barely got the car of the highway and coasted into a parking lot. 2) Life threating for Father,…
Own a 2021 CX-9?
Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.