2017 MAZDA CX-9 Electrical System Problems
2 NHTSA complaints on file
Electrical System Issues in the 2017 MAZDA CX-9
2 electrical system complaints have been filed with NHTSA for the 2017 MAZDA CX-9. Of these, 0 involved a crash, 0 involved a fire, and 0 resulted in injury.
2
Complaints
0
Crashes
0
Fires
0
Injuries
0
Deaths
All Electrical System Complaints
My vehicle has several issues related to a water pump failure in which the check engine light did not remain on. The vehicle began to over heat and slow down on the highway/ roads despite having my foot on the gas. My vehicle is now at Heritage Mazda Catonsville and unable to be read by the OBD reader which may be related to a weak wiring harness reported by other owners of the CX9. It also my be why my check engine light is not on despite having an engine issue. Many others have reported a failed water pump which caused cracks in the head which causes the car to over heat and slow down without notice. Despite having thousands of customers with this issue Mazda has yet to issue a recall.
The first sign of an issue was an oil pressure indicator on the dashboard, but upon inspection, the oil levels seemed completely normal. The dashboard light went away shortly after that. A day later, I was on my lunch break and parked my car in a garage for 45 minutes. On the drive there, I did not notice any issues and was able to operate the vehicle fine for the short distance that I drove. When I returned to my parked car, there was a large puddle of oil underneath. I immediately had a mechanic take a look at the car. The mechanic was able to identify a cracked cylinder head, which led to water and coolant entering the engine. He highly suspects that this caused a blown head gasket in the car as well. As well as that, the car's starter, which worked just fine on day 1 of...
Other 2017 MAZDA CX-9 Problem Areas
Engine
42 complaints
Unknown Or Other
9 complaints
Fuelpropulsion System
5 complaints
Power Train
4 complaints
Suspension
4 complaints
Forward Collision Avoidance Automatic Emergency Braking
2 complaints
Steering
2 complaints
Wheels
2 complaints
Back Over Prevention Sensing System Camera
1 complaint
Seats
1 complaint
Structurebody
1 complaint
Visibilitysunmoon Roof Assembly
1 complaint