2016 Mazda CX-5

The contact owns a 2016 Mazda CX-5. The contact stated that while driving at an undisclosed speed, there was an abnormal sound coming from the vehicle, and the message “Smart Brake Malfunction” was displayed. The vehicle was taken to an independent mechanic, where it was diagnosed with catastrophic brake caliper failure. The contact was unsure if the vehicle needed to be repaired. The vehicle was then taken to the dealer, where it was diagnosed, and it was determined that the passenger’s side inner CV joint had failed and needed to be replaced. The vehicle was not repaired. The dealer informed the contact that the vehicle could not be driven due to the severe failure. The manufacturer was not made aware of the failure. The approximate failure mileage was 125,385.

High pressure fuel pump has been replaced twice in less than a year. Car has less than 100,000 miles. Both times the fuel pump went out while driving, causing loss of acceleration and stalling of vehicle. Had to be towed to shop both times.

The fuel pump system needed to be replaced completely, although the mileage is just around 60000 miles.

Vehicle was taken to an authorized Mazda dealership for 60,000-mile service; coolant system drained and refilled. Immediately after service, check engine light illuminated (P011A – engine coolant temperature sensor correlation issue). Dealership retained vehicle, drove ~300 miles, performed a second coolant flush; issue persisted. Dealer determined heater core clogged, attributed to coolant contamination/corrosion introduced during service. Another CX-5 at the same dealership experienced the same issue. Safety Concerns: Heater and coolant system failure may affect cabin comfort and engine temperature monitoring. Occurred immediately after authorized service, suggesting procedural or system-related defect. Noted in Mazda Technical Service Bulletin 07-007/19 as a known issue. Attempts at Resolution: Mazda offered partial goodwill assistance (~$775–$875) and assigned partial responsibility to the customer. Multiple attempts to escalate with Mazda Customer Experience (Case manager Betty) have not resulted in a satisfactory resolution. Dublin Mazda dealership service department, Mr. Frank Gozales (866-502-9912) mentioned original coolant by Mazda has caused this issue on 2016, and 2017 Mazda CX5 and is Mazda problem. I am requesting NHTSA review of this issue for potential defect or safety investigation.

I noticed smoke filling the inside of my car. I looked over at the passenger seat, and my coat was on fire. I poured my drink on it, pulled over, and threw the coat out of the car. I saw a large hole in the lumbar area of the passenger seat, and it was glowing red and putting out a lot of heat. The seat heater was on, so I immediately turned it off. It was obvious that the fire has started inside the seat, and there was no other fire source in car--ie. lit cigarette, lighter, etc. If someone had been sitting there, they would have serious burns. The seat will need to be replaced.

Leather heated seats .. safety put at risks because I suffered burns on my bottom (butt) from the driver seat getting too hot to the point where it burned the seat itself as well , and made a brown burn mark on the seat … Both of my cheeks got burned .. this can in the long run cause skin damage and worse case scenario cancer. No it hasn’t been inspected No warning lamps

With no prior warning, just after turning into driveway, my car got stuck and would not move. It gave clicking sounds and would not move no matter which gear it was in. The towing service person needed a dolly in order to safely lift the vehicle onto the towing bed because the front, driver’s side tire would not move and was pushing into the fender. So far, the control arm and axel are completely separated from the car. Further investigation is ongoing to determine the extent of the spontaneous injury. This all happened without warning.

I was driving down the road and started smelling smoke then looked over and my passenger seat was in flames.

Passenger side seat heater overheated and burned upholstery.

THE FRONT PASSENGER SEAT HEATING SYSTEM CAUGHT FIRE AND BURNED THROUGH THE FABRIC AND MY DOG'S SEAT. THE FUMES MADE ME AND MY DOG NAUSEOUS.I HAD TO SWERVE ACROSS THE HIGHWAY AND STOP ON THE SHOULDER TO EXTINGUISH THE SEAT FIRE/BURN. THE FUSE WAS PULLED FOR SAFETY. THE SEAT IS IN STORAGE FOR INSPECTION. MAZDA WILL BE CONTACTED.

UNKNOWN Slowly driving into garage when suddenly the engine revved up loudly and unattended accelerated forward, causing extensive damage to front of car, a piece of furniture and garage wall

Rear Shock mount deteriorated in 8 years, far quicker than industry standard. Mazda redesigned the part for 17' MY. Widely reported on Reddit. NHSTA service bulletin notice.

Our sunroof exploded while we were driving on the highway. Glass shattered on us and fell while we were driving with a very loud explosive noise.

The contact owns a 2016 Mazda CX-5. The contact stated that while driving 60 MPH, the vehicle failed to accelerate as intended while depressing the accelerator pedal. No warning light was illuminated. In addition, there was an abnormal rattling sound coming from the engine. The contact pulled over to the side of the road before the vehicle stalled. The vehicle failed to restart. The vehicle was towed to an independent mechanic who determined that the engine had failed due to a lack of maintenance. The contact stated that the vehicle was equipped with an automatic reminder regarding the oil change. The contact stated that the oil change reminder failed to illuminate to indicate that the oil level was extremely low. The check engine warning light also failed to illuminate. The vehicle remained at the dealer unrepaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 130,000.

Only one headlight was addressed by dealer in repair for 4320A | NHTSA #20V-063 and they're refusing to cover the other side. The other DRL led light is now out from seemingly the same cause. They stated they did not fully follow the procedure in the documents I found regarding this recall when they repaired the first one because they "pre authorized" the swap of one side on "good faith" so there is not a record I can cite around the serial or lot numbers of the new or old lights on my own.

The info uni in the car constantly resets itself. It happens when GPS is activated, parking, listening to directions, pretty much at all time especially in crucial moments. Nav center doesn't even load at times, this causes unknown information of speed limits and streets.

Keyless entry stopped working, key fob battery replaced as well as car battery. Coolant issues. Heater core and sensors

The airbag warning light is on. I’m concerned the airbag may not deploy in an accident. There was a recall on the airbag, but the dealership only reset the light and did not replace the airbag. I have taken my car to two different Mazda dealerships: One told me I would have to pay for the airbag replacement. The other said the airbag is functioning properly. I’m not sure which one is correct, but the warning light continues to come on. Sometimes it stays on for a couple of days; other times, it flashes on and off intermittently. The airbag light is clearly visible on the dashboard and continues to behave abnormally.

from my service mechanic... "Rear brakes at 8mm/8mm on the right side, but 4mm/6mm on the left. These brakes were replaced 1500 miles ago and should not be showing this kind of wear. Examined brake pads, found evidence of overheating. Scanned vehicle, confirmed no codes from Electronic Parking Brake. Actuated parking brake and confirmed it is engaging and releasing as commanded. Found a Technical Service Bulletin related to parking brake drag on this vehicle. The brake pad damage pattern is consistent with what we observed today. Mazda recommends replacing the affect caliper(s) with an updated version to address this issue. Confirmed by lot number that current calipers are older version. TSB attached. Recommend replacing calipers and rear brake materials."

Mazda issued a safety recall (Mazda safety recall 4320A, NHTSA campaign number 20V-063) to address daytime running light flickering/failure. At the time, only the passenger side daytime running light was replaced under the recall by Mazda, with a gasket/gas absorption sheet being installed on the driver's side. The driver's side daytime running light is now flickering/dim. Mazda did not repair the safety defect properly on the driver's side for the daytime running lights under Mazda safety recall 4320A, NHTSA campaign number 20V-063, because Mazda only installed the gasket/gas absorption sheets that have since failed, causing the daytime running lights to flicker, increasing the risk of crash. Mazda has refused to cover the cost for replacement of the daytime running lights per safety recall notice 4320A / NHTSA 20V-063, even though replacement of these lights is covered by the recall. Both a Mazda dealer and Mazda corporate customer service have been contacted regarding this issue and both have refused to provide the remedy as outlined in the safety recall. Mazda has provided an estimate of $1,466 to replace the daytime running lights. Attached Documents: -Correspondence with Mazda where Mazda's refuses to cover work -Estimate from Mazda to perform work -Original invoice from recall work performed (gasket kit on driver side only, not full light replacement)