My rear differential completely stopped on the freeway, not moving and saying over 100 mph and my car was barely rolling I am extremely lucky that I did not get rear ended because I was very close to that happening, a few cars had swerved to not crash. Luckily I was able to push my car to the exit and get off of the freeway to wait for the flatbed to pick me up. It is available to be inspected it-??s just parked until I can get it fixed, the part is $1800 and I have not been able to afford it. I had a mechanic come and look at it and I was told what part it is. There was absolutely no warning lights for this issue.

- La Crescenta , CA, USA

At 38,000 miles, rear differential leak discovered. Dealership repaired leak. At 42,000 dear differential leak discovered. Prognosis: rear differential failure. Dealership replaced rear differential, shocks. Cost repairs paid by me (cadillac rejected paying repairs).

- Pacifica, CA, USA

Rear end is making howling sound. The sound started in late December of 2019. Since then I have only drove the car to the repair facility this week. Certified repair facility is stating my differential is needed to be replaced.

- Anaheim, CA, USA

I noticed a roaring noise while driving the vehicle several months before taking it in to the dealer I went to barkley Cadillac GMC in tuscaloosa Alabama and was told that the rear end had a problem and needed to be replaced.

- Tuscaloosa, AL, USA

First in line while stopped at a left-turn light on a city street. Light turned green, began to accelerate. Mid-way through the turn, heard a "pop", lost steering control, and the rear end spun car into the curb. Keep in mind this is a 4-wheel-drive car. When the car came to a stop, the nose of the car was resting on the front passenger tire and wheel. The right-rear wheel was scratched and abraded all around because it was still spinning when it hit the curb. The front right wheel has damage only on half of it because it stopped spinning when the nose dropped onto it. Looking under the car I saw the front-right lower control arm broke in mid-turn. In addition to front right suspension damage, vehicle received damage to right rear suspension. No damage to body from the incident. GM had a representative inspect the car and pull the "black box" data on October 8, 2015. Maximum speed during the incident was 38mph. Were able to jack up the car. Front wheel hanging loose and easy to move by hand. Strut/shock/sprint tower attachment broken at wheel hub behind brake disk. Front 4-wheel-drive-axel broken. Anti-roll bar linkage broken.

- Littleton, CO, USA