2017 Mazda CX-5 problems

“The radio is uncontrollable by driver. The radio the self dial from Bluetooth. Even if not connected, the radio surprises this driver by playing the radio unexpectedly at the highest rate. Due to the buttons not working, driver cannot turn down the radio causing safety concerns for being scared and distracted. There are no warnings. Mazda is unwilling to assess without pay.”

“My 2017 Mazda CX-5 has experienced a recurring condition more than six times involving sudden jerking, rapid deceleration, and loss of normal accelerator response during extended highway driving, often while cruise control is engaged. On multiple occasions the engine has also shut down. On 09/11/2026, while traveling south on I-35 at approximately 80 mph with cruise control engaged, the vehicle suddenly began jerking violently and rapidly losing speed. Normal accelerator response was lost and a vehicle behind me nearly struck my vehicle. I was able to reach the shoulder just before the engine shut down. The vehicle would not restart and required towing. There was little or no meaningful warning before the loss of power. The vehicle was inspected by a Mazda dealer. I specifically reported the recurring highway jerking, deceleration, loss of throttle response, and shutdown concern. An aftermarket OBD-II device was removed after the dealer identified parasitic battery draw. The dealer subsequently stated in writing that the battery and alternator were healthy and that the vehicle was “operating as intended.” On 10/09/2026, with that device no longer installed, the…”

“My car started to smell like gas. I brought it to a shop and there was a leak in my high pressure pump in which the gas was leaking on to my engine. I paid $1600 to have this replaced and there is only 88,000 miles on the car.”

“I got my rear brakes replaced. Within a few days I noticed drag on each of the rear brakes would seize up at times causing excessive heat and a burning smell. When I took it into my local Mazda Service Center, I was told by the Service Manager and the Service Tech that this is a known issue with Mazda CX5s, that when the Mazda is not put into “maintenance mode” when replacing the rear brakes, it can cause damage to the parking brake motors and calipers. They said my vehicle was allegedly put into maintenance mode before brake service and that the issue can still happen even when the precautions are taken. Upon doing some brief online research I am finding that I am far from the first person to experience this unsafe defect. My safety and the safety of those on the road with me are at an extreme risk as my brakes could overheat and fail, causing a deadly accident. I believe this needs to be addressed by the manufacturer on all 2016/2017 CX5 models immediately as more and more are needing rear brake replacements, causing more and more risk on the roadways. Please hold Mazda accountable for this defect in their parking brake mechanism and require them to replace…”

“The sunroof exploded. Exploded. Sound was shocking. I did not know what it was. The sound of the outside from the sunroof clued me in. The "shade" underneath the sunroof was closed so I did not see it happen.”

“I was driving on the freeway, going about 65 mph at 7:30 am. I heard a loud BANG sound and my sunroof glass exploded into pieces. I had the inside cover closed so the glass did not get in the car. The sound was frightening, loud and caused me to pull to the side of the highway. The vehicle has been inspected by insurance representatives and I had used the sunroof the day before - it worked fine.”