2021 Mazda CX-9
This year had at least 30% fewer complaints than this model's typical year.
This verdict reflects complaint volume compared to this model's typical year. Recalls and safety issues below apply regardless of the verdict — always check them.
- Complaints
- 39
- Recalls
- 1
- Investigations
- 0
- Top problem
- Engine
Campaigns on file for 2021
None on file
54% of complaints
Complaints per year
2021: 39 complaints
View as data table
| Year | Complaints |
|---|---|
| 2007 | 67 |
| 2008 | 172 |
| 2009 | 59 |
| 2010 | 162 |
| 2011 | 170 |
| 2012 | 221 |
| 2013 | 68 |
| 2014 | 54 |
| 2015 | 35 |
| 2016 | 107 |
| 2017 | 61 |
| 2018 | 128 |
| 2019 | 53 |
| 2020 | 19 |
| 2021 | 39 |
| 2022 | 11 |
| 2023 | 13 |
Known problem areas
Percentages can add to more than 100% — a complaint can name more than one system.
Engine
54% · 21 reportsShow complaint excerpts
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.
NHTSA ODI report, 2026-08-10
Also filed under Power train and vehicle speed control
This complaint refers to Mazda and it's dealer refusal to properly execute the warranty work under the SSPD5 Valve Stem Seal Class Action Campaign and does not follow the Court's approval of the final Settlement Agreement.
NHTSA ODI report, 2026-07-12
Power train
13% · 5 reportsShow complaint excerpts
I was in a parking lot and came to a stop and placed the car in reverse to back into a parking space. The back-up camera was on and I began to back into the parking space when the car suddenly lurched/jerked forward and accelerated on its own.
NHTSA ODI report, 2023-10-16
Also filed under Forward collision avoidance
Service brakes
10% · 4 reportsShow complaint excerpts
As I was driving downhill with minimal snow on the ground, I tapped my brakes about 7 times before they locked up. I went to turn to stay on the road and the steering wheel wouldn't budge causing me to go off the road, into an embankment.
NHTSA ODI report, 2021-02-24
Also filed under Steering
Forward collision avoidance
10% · 4 reportsMost commonly citing warnings and automatic emergency braking.
Vehicle speed control
8% · 3 reportsMost commonly citing accelerator pedal.
Safety timeline
1 recall · 0 investigations · oldest first
To check one car, enter its VIN on the NHTSA recall page. Check a VIN →
-
R
2021-11-04Seat belts, seats21V750000 Mazda North American Operations (Mazda) is recalling certain 2020-2021 CX-9 vehicles equipped with 60/40 split bench second-row seats. The left-side second-row seat may unexpectedly slide forward during a crash.
Remedy: Dealers will replace the internal parts of the affected second-row seats, free of charge. Owner notification letters were mailed November 4, 2021. Owners may contact Mazda customer service at 1-800-222-5500, Option 4.
Buy-smart checklist
2021 Mazda CX-9 — pre-purchase inspection
Inspect
- Engine: 21 reports on file for this year.
- Power train: 5 reports on file for this year.
- Service brakes: 4 reports on file for this year.
Verify these recalls were completed
- Recall 21V750000 · Seat belts, seats
Other years of this model
See all years ranked →FAQ
- Is the 2021 Mazda CX-9 reliable?
- Based on NHTSA complaint volume compared to this model's typical year, the 2021 Mazda CX-9 is rated "better than typical".
- What are the most common problems with the 2021 Mazda CX-9?
- The most-reported component is engine, accounting for 54% of complaints on file.
- How many recalls does the 2021 Mazda CX-9 have?
- 1 recall on file for this model year.
Data updated 2026-10-31 · Complaints are unverified owner reports filed with NHTSA, not independently verified defects. Methodology.