Vehicle Data Hub

2018 Mazda CX-9 engine problems

78 complaints about engine have been filed for the 2018 Mazda CX-9, which is 46% of all its NHTSA complaints. It is the most reported problem area for this model year.

At a glance

Complaints
78 46% of this year's complaints
Crashes and fires
0 and 0
Injuries and deaths
0 and 0

Source: NHTSA owner complaints

What the data shows

None of the engine complaints mention a crash, fire, injury or death.

What owners wrote

I was waiting in a stationary position, at a red light, behind some other vehicles, with my foot on the brake pedal. All of a sudden, the vehicle started to lurch forward as if someone had stepped hard on the gas pedal! I was struggling to keep the car still by depressing the brake pedal harder, but it wouldn't stop the car. I had to put it in park and turn off the engine to stop the forward thrust of the vehicle.

Reported at 11,000 miles, July 2019

The contact owns a 2018 Mazda CX-9. The contact stated that while the vehicle was parked, he noticed an abnormal odor inside the vehicle. Upon inspecting the vehicle, the contact found a trail of coolant. The vehicle was taken to an independent mechanic, who confirmed that coolant was leaking, and referred the contact to the dealer for a diagnostic test. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 88,080.

Reported at 88,080 miles, August 2023

Other problems reported for the 2018 Mazda CX-9

Engine problems in other years

Engine problems across all Mazda models