There are 5 stored owner reports matching the speed control & cruise leading-label group for the 2018 Mazda CX-5 in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 5 of 5 matching reports.
Open the full vehicle complaint log (all categories)Cruise control suddenly ceased operating and I believe that is disabling the automatic collision avoidance system.
WHILE PARKING AT A VERY SLOW SPEED, THE MAZDA SUDDENLY AND ON ITS OWN ACCELERATED AND RAN INTO A FIXED OBJECT. THE VEHICLE WAS OFF THE ROAD IN A GRASSY PARKING AREA WHEN IT HAPPENED.. . *TR
NIST CAMPAIGN 19V497MODIFICATIONS WERE MADE. THE VEHICLE NOW DECELERATES UP TO 6 MPH ON HILL INGRESS; ON EGRESS THE VEHICLE GOES AT LEAST 3 MPH OVER SETTING. WHEN PASSING CARS ON A HILL, THE CAR SLOWS DOWN WHEN RELYING ON CRUISE CONTROL TO RESUME DRIVING, THUS CAUSING US TO STEP ON THE GAS TO HOLD A SAFE DISTANCE FROM THE PASSED CAR. WE HAVE LOST AT LEAST 3 MPG FUEL EFFICIENCY. WE HAVE RETURNED TO THE DEALER AND THEY INDICATED THAT THE VEHICLE IS OPERATING AS EXPECTED. THIS FIX IS A SAFETY CONCERN.
The contact owns a 2018 Mazda CX-5. The contact stated that while driving at various speeds with the cruise control and the auto distance features activated, the vehicle would not accelerate while depressing the accelerator pedal. On several occasions while attempting to accelerate overtake a second vehicle, the speed suddenly decelerated instead. After turning off and restarting the vehicle, the vehicle operated as designed. During the failure, the Automatic Braking and Back Over Prevention camera was displayed. No further information was available. The vehicle was taken to the local dealer who performed a software update and later replaced the throttle body however, the failure recurred. The manufacturer was not yet notified of the failure. The failure mileage was 15,154.
TL* THE CONTACT OWNS A 2018 MAZDA CX-5. WHILE PULLING INTO A PARKING SPACE AT 5 MPH, THE VEHICLE ACCELERATED ON ITS OWN WHILE THE BRAKE PEDAL WAS DEPRESSED. AS A RESULT, THE VEHICLE DROVE OVER A MEDIAN AND CRASHED INTO ANOTHER VEHICLE. THE AIR BAGS DID NOT DEPLOY. THERE WERE NO INJURIES AND A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED TO SCHWARTZ MAZDA (585 SHREWSBURY AVE, SHREWSBURY, NJ 07702, (732) 945-5100) TO BE DIAGNOSED, BUT THE CAUSE OF THE FAILURE WAS UNDETERMINED. THE VEHICLE WAS THEN TAKEN TO AN INDEPENDENT MECHANIC FOR DIAGNOSTIC TESTING AND REPAIRS. THE MANUFACTURER WAS NOTIFIED AND DID NOT ASSIST. THE FAILURE MILEAGE WAS 650.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.