Problems · by component
2014 Mazda CX-5 engine problems
39 owner complaints to NHTSA about the 2014 Mazda CX-5 cite engine, 10% of all 377 complaints for this model year.
Complaints
39
10% of all complaints
Crashes
0
Reported by owners
Fires
0
Reported by owners
Injuries
0
Reported by owners
What owners say about the engine
Verbatim from NHTSA complaints, newest first
“I was waiting at a traffic signal to make a left turn, with my foot on the brake. The car accelerated aggressively, with no warning, like the pedal was pushed to the floor. I stood on the brake and shoved the shifter into park - coming to a stop in the middle of the intersection, Fortunately my wheels were pointed straight and the car did not race into oncoming traffic. My [XXX] father was in the car with me. Thankfully, my grandchildren were NOT in the car. You could smell the gas and brakes. It was NOT driver foot placement, nor was it floor mats. Vehicle has ~ 75K miles, and I am terrified of this happening again. I had driven this car regularly in rush hour stop & go traffic for years with no event like this ever before. Apparently sudden unintended vehicle acceleration is a recognized problem.”
“The contact owns a 2014 Mazda CX-5. The contact stated that while attempting to turn off the vehicle, the vehicle failed to shutoff. The screen and vehicle remained powered on. The battery was drained, and the contact replaced the battery. The contact called the local dealer, but the vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 77,000.”
“The contact owns a 2014 Mazda CX-5. The contact stated that while driving at 35 MPH, the check engine warning light illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the heater core. The contact was informed that the heater core needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 57,311.”
“Vehicle was at highway speed when the warning light for high engine coolant temperature came on with a warning message to stop the vehicle in a safe place. The engine stopped and I was almost hit by a semi-truck as I was struggling to move over a lane to stop on the side of the highway. Vehicle was towed to the auto shop and diagnosed with a crack in the cylinder head. There was no problems prior to this. My research has shown that this has become a common problem with this vehicle.”
“The electrical component of the car does not turn off when the vehicle is in park and the push button disengaged. Drains battery and leaves me stranded. Can’t lock doors to prevent unwanted entry once this happens as everything is battery powered.”
“I as well as many other mazda cx5 owners have experienced the same issue where the suv will not power off when the push to start button is pressed. The suv requires you to power it back on and shut it off several times before it actually shuts down. The radio and other accessories will not shut off when the car is powered down. Resulting in serious issues possibly happening if the car is not shut down properly. Anyone could get in and start the vehicle back up if they wanted to. Stolen vehicles. Vehicles are unable to lock properly. Batteries are constantly being repurchased due to this issue.”
Showing 6 of 39 reports. Read every report on NHTSA.gov.
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 3, 2026NHTSA vehicle page
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.