2011 Mazda CX-9 engine problems
15 owner complaints filed with NHTSA name the engine on the 2011 Mazda CX-9 — 9% of all complaints for this model year.
What owners report
“Driving kids to school a few months ago. Car started to smell like burning rubber. I thought it was the garbage truck ahead of us. As we turned the corner 2 blocks later, the car dead stopped and we all went flying forward. It jerked so hard, we are lucky our necks didn't snap. I put the car in…”
filed Sep 26, 2023
“Defective water pump located inside the engine that when failure occurs can cause coolant to leak into engine causing complete engine failure. This is a major safety hazard due to the fact that these cars with defective water pumps can break down with very little warning in the middle of a freeway!…”
filed Nov 10, 2021
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
This 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, dead battery, engine no start, DTC(s)…
SA-041-26 · Service Bulletin/Repair Instructions · issued Jun 19, 2026
Engine problems in other CX-9 years
| Year | Reports | Share |
|---|---|---|
| 2021 CX-9 | 19 | 53% |
| 2020 CX-9 | 5 | 26% |
| 2019 CX-9 | 22 | 42% |
| 2018 CX-9 | 73 | 58% |
| 2017 CX-9 | 43 | 70% |
| 2016 CX-9 | 64 | 62% |
| 2015 CX-9 | 17 | 49% |
| 2014 CX-9 | 19 | 35% |
| 2013 CX-9 | 17 | 25% |
| 2012 CX-9 | 25 | 11% |
| 2010 CX-9 | 23 | 12% |
| 2009 CX-9 | 4 | 7% |
Other reported problem areas on the 2011 Mazda CX-9
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.