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.
Transfer case was leaking and overheating. Covered under extended warranty. This is a well known issue for this car. Would have cost $2K+ to repair outside of warranty according to dealer. Note that the replacement transfer case is identical to the original--meaning it will likely fail again prematurely (dealer implied as much too). Next time that happens, it will be on my dime. Very disappointing!
A D V E R T I S E M E N T S
Transfer case was leaking and overheating. Covered under extended warranty. This is a well known issue for this car. Would have cost $2K+ to repair outside of warranty according to dealer. Note that the replacement transfer case is identical to the original--meaning it will likely fail again prematurely (dealer implied as much too). Next time that happens, it will be on my dime. Very disappointing!
- Christopher M., Lansdale, PA, US