CarComplaints.com Notes: The only area of real concern for 2012 Mazda CX-9 owners is the brake booster.
In 2014, Mazda extended the warranty on the 2007-2013 CX-9 brake booster to 7 years / 90,000 miles. However this extended warranty has expired for most CX-9 owners, so buyer beware.
This Mazda CX-9 brake booster failure isn't terrible in terms of repair cost — it "only" costs $550 average to fix. However it is a safety issue when the brake booster fails as it increases stopping distance. Owners have reported having to stomp on the brake pedal, & crashes/injuries have been reported due to this CX-9 brake booster defect.
2.2
hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
69,902 miles
About These NHTSA Complaints:
This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.
So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.
The contact owns a 2012 Mazda CX-9. The contact stated while driving 25 mph and approaching a stop sign, depressing the brake pedal the vehicle failed to stop. The contact stated that there was no warning light illuminated. The contact stated that she pumped the brake pedal and shifted to neutral until the vehicle came to a stop. The contact was able to drive to her residence. The contact took the vehicle to an independent mechanic and was informed that the power brake booster and master cylinder needed to be replaced. The vehicle was repaired. A dealer was not contacted. The manufacturer was informed of the failure. The failure mileage was 29,805.
The contact owns a 2012 Mazda Cx-9. the contact stated while driving at various speeds, the vehicle stalled. Additionally, the brakes failed to engage when the brake pedal was depressed. There was no warning light illuminated. The vehicle was taken to an independent mechanic to be diagnosed. The contact was informed that the brake master cylinder and brake booster needed to be replaced. The contact was advised to reach out to the dealership eldorado Chevrolet(233 N central expwy, mckinney, tx 75070). The contact wanted a second opinion and the vehicle was taken to eldorado Chevrolet (2300 N central expy, mckinney, tx 75070) where it was also diagnosed with the master cylinder and brake booster needing to be replaced. The svc mgr informed consumer he wouldnt advised anyone to drive the vehicle until repairs were made. Due to incorrect title work the dealer refunded some money and took posession of the vehicle. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 110,000. The consumer stated the vehicle was put back on the lot for resale. The consumer contacted a lawyer and vehicle was taken off the lot but carfax was not updated with correct information.
- Celina, TX, USA
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- Richmond, VA, USA