2017 Mazda CX-5 Power Train

The contact owns a 2017 Mazda CX-5. The contact stated while the vehicle was parked, there was an abnormal sound coming from the rear of the vehicle. No warning lights were illuminated. The vehicle was taken to a dealer where it was diagnosed and determined that the rear differential needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 80,000.

Rear differential failed around 97,000 miles. We were three months past our certified pre-owned warranty. Total cost to repair was around $4400 after a discount on parts and labor through our Costco membership. Contacted Mazda to see if they’d be willing to provide any assistance to cover the repair, they declined. Service advisor told us that it was a catastrophic failure that we did not cause. We purchased this car in 2020 and have always had it serviced at the dealership and at no point did they bring it up as it being an issue. The rear differential should not fail.

Rear differential began to leak. Mechanics (3) looked at the part and discovered play in both right and left side axles leading into rear differential along with loud clanking noises inside the differential itself. Seal areas on both sides of unit had extensive play. Diagnosed with worn gears inside rear differential. Vehicle is only 8 years old (bought brand new) and has 74,110 miles. Complaint filed with Mazda claiming that gears and rear differential should not have failed given the mileage. Mazda has advised me that the car was out of warranty (5yrs/60k mileage) that the repairs were not covered. They wanted me to drive my car to a local Mazda dealer but I declined since driving it may/would have caused more damage to differential. Advised them to have their mechanic go to my local repair facility where part was replaced and pick up the differential for verification. Research online has indicated other owners has suffered identical issues. Have not heard anything back from Mazda. Total cost to replace $3,993.49

Car was making popping noise, got it checked out at mechanic. Said rear differential had metal in the oil.

Rear differential failed at roughly 80,000 miles. Depending on failure, unexpected loss of traction or a locking up of the drivetrain could occur. We were lucky to catch it before then. Dealer confirmed issue with no clear cause. No warning lamps/messages/etc indicated that the part was failing. The only thing we noticed was increased highway noise, which could easily be ignored by someone who is not as aware of good/bad car noises.

Sudden jerking started when driving on a 45miles/hour with vehicle stopping suddenly. The issue was diagnosed by the dealer to be a transmission related and was asked to replace with a new transmission. There was no prior warning.

THE SHIFT LOCK LEVER ON THE TRANSMISSION GEAR SELECTOR GETS STUCK WHEN ITS COLD.

MY CAR UNEXPECTEDLY ACCELERATED ONCE ABOUT A MONTH AGO.AND TODAY 10/18/2018 IN PARKING BOTH TIMES. I AVOIDED HITING A VEHICLE EACH TIME BY QUICKLY STOMPING ON MY BRAKES.TODAY I TOUCHED ANOTHER CAR.LUCK HAD IN STOPPED IN TIME WITH NO DAMAGE. I WAS PARKING REARWARD THE FIRST TIME AND FORWARD TODAY 10/18/2018 IN MOTION.ON A CITY STREET.

WHEN SLOWING DOWN, AS SOON AS VEHICLES HITS 25 MPH, THE TRANSMISSION JERKS. GETTING WORSE, DISTRACTS FROM DRIVING