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.
Since going through automatic car wash sunroof leaks water now even when it rains. Took to dealer and want to charge me several hundred dollars to replace seal. Did investigation on internet and Mazda has a service bulletin stating this is a problem with certain vins which mine is included and is covered under warranty. Going to call my dealership now and see what they have to say.
A D V E R T I S E M E N T S
Since going through automatic car wash sunroof leaks water now even when it rains. Took to dealer and want to charge me several hundred dollars to replace seal. Did investigation on internet and Mazda has a service bulletin stating this is a problem with certain vins which mine is included and is covered under warranty. Going to call my dealership now and see what they have to say.
- Colleen M., Crystal Lake, IL, US