Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2014 Mazda CX-5 owners, lightly cleaned up (personal details are redacted by NHTSA).
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.
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 [redacted] 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.
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.
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.
My 2014 Mazda CX5 will not shut off when I push the on/off button. I have to move the shifter from left to right real hard a couple of times, then continue to try until it finally shuts off when you push the button. It apparently is a sensor on the transmission, however I am unable to pay for this at this time. I feel that because of all the other people who have spoke about this same issue online, that Mazda should do a recall. Thank you for your consideration .
Car will not sense that it is in park. It constantly says to put car in park when it already is. The car needs to be turned On and off several times to get it to work and one time it took 45 minutes. It happens nearly every day. It's been going on for months and I've had 3 shops look at it. I called Mazda as well and they acted like they never heard of such a thing. Searching online it is very common with the make and model and year of the car.
The vehicle remains ON when you hit the turn off switch. Sometimes it takes several jiggles of the gear shifter to turn it off. I reported it to Mazda and they said that they can't do anything. Seems to be a common issue: https://www.reddit.com/r/cars/comments/b77yli/my_2014_mazda_cx5_wont_turn_off_kind_of/ Thankfully, my car is still operating but I would like it to shut off every time the first time.
There is a defect that leads to the car not turning off property. Reading on various forums, it seems this is a very common problem in Mazda CX-5s. I have spent over $1500 recently on this car, and now this? My battery dies overnight because the car doesn't not fully shut down in park. Again, this is all over the forums. People are getting stranded. It's terribly unsafe.
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.
Engine complaints in other CX-5 years
Frequently asked questions
How common are engine problems on the 2014 Mazda CX-5?
NHTSA has 39 complaints about the engine & cooling of the 2014 Mazda CX-5, 10% of the model year's 377 complaints.
Is there a recall for 2014 Mazda CX-5 engine problems?
No. NHTSA lists no engine & cooling recall for the 2014 Mazda CX-5, though it has 3 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2014 Mazda CX-5 engine problems start?
Half of the complaints with a recorded mileage happened before about 54,000 miles, and 8% before 25,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.