CarComplaints.com Notes: The only area of real concern for 2010 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, 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.
1.7
hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
98,000 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.
We took our 2010 Cx-9 with 99,000 miles the Mazda dealer in union NJ because of a noise in the car and were told that the rear subframe has rotted out and is destroying the rear diff mounting bolts. We were also told the exhaust system is also rotted out and the vehicle is unsafe to drive. If we go over a pot hole, the whole undercarriage of car can fall out. This car was not kept at the beach and well maintained.
I've own my 2010 Cx-9 since new, at 96K miles the bolt mount for the hatch back power lift ripped out of the sheet metal of the hatch with a piece of metal and bolt flying. I use the car only for private use and no heavy duty usage. Bolt looked rusted (sorry I through it away). The Mazda dealer tells me that it is a very uncommon occurrence, and that is not covered by Mazda. I see in blogs that it is not that uncommon. The bolt and metal breaking may cause glass breakage or damage to someone while the door is being opened. See: forums.edmunds.com/discussion/12710/Mazda/Cx-9/Mazda-Cx-9-power-lift-gate-problemwww.mazdas247.com/forum/showthread.php?123815687-CX9-power-tailgate-issues
- Short Hills, NJ, USA
Search CarComplaints.com for these popular complaint phrases...
A D V E R T I S E M E N T S
- Watchung, NJ, USA