ANNOUNCEMENT: The Car Book 2018 is now online!

Ratings on over 1,000 new & used models going back 5 years, from the Center from Auto Safety. Learn more about The Car Book 2018 here.

2010 Mazda CX-9 windows / windshield problems: sunroof shattered while parked

Sunroof Shattered While Parked Seal Of This Might Hurt 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.


pretty bad
Typical Repair Cost:
No data
Average Mileage:
48,500 miles
Total Complaints:
2 complaints

Most Common Solutions:

  1. not sure (2 reports)
2010 Mazda CX-9 windows / windshield problems

windows / windshield problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2010 Mazda CX-9:

Unsubscribe any time. We don't sell/share your email.

2010 Mazda CX-9 Owner Comments

problem #2

Feb 072014

CX-9 Grand Touring

  • Automatic transmission
  • 75,000 miles


The car was parked and secured in the garage after returning home from work. After I was in the house for 5 min. I heard a loud bang/explosion come from in the garage. When I went to investigate, I saw the sunroof of my Mazda CX-9 had exploded. Nothing fell on the car and broke the window. The sunroof had a hole about the size of two fists and the rest of the glass that was still in tact was domed up like it exploded from the inside. The shade was closed so no glass in the car. that's one good thing.

As I stood there taking pictures for the insurance company because I was sure they would never believe me, the glass continued to crackle and pop and small pieces even shot up into the air. Of course the Mazda dealership had NEVER heard of this happening. Not allowed to move the car until the insurance company looks at it to determine the cause. If its a manufacture defect I won't have to pay the deductible. We'll see

- chaquita4u, Fredericksburg, OH, USA

problem #1

Aug 202011

CX-9 Grand Touring 3.7L V6

  • Automatic transmission
  • 22,000 miles

While parked in the lot of our local Target on a sunny afternoon (low 90's) the sunroof on our 2010 model CX-9 shattered for no apparent reason.

We had the store review the security camera recording and nobody approached the vehicle. There was no foreign object in the car, just a lot of glass fragments.

Of course our local Mazda dealer insists this is not a warranty claim but surely this implies a defect of some sort? Anyone else with a similar story?

- Ian R., Mobile, AL, USA

Search for these popular complaint phrases...

Not what you are looking for?