In September, my vehicle would not start. I had it boosted and it started right up. The very same afternoon, it would not start and had it boosted. Drove it for 2 days without issue and on day 3 it would not start and boosting was unsuccessful. The vehicle could not be put in neutral and needed to be towed. The car spent several weeks at the dealer and I was told it was the battery which I replaced the key FOBS needed to be reprogrammed and then the wiring harness was chewed up. After several weeks at the show and over $1,000 later the car was returned. A month or so later, the car wouldn-??t start, could not get boosted and had to be towed back to the dealership. After 2.5 weeks, I was told it was corrosion on the wiring harness. I-??m concerned that these issues will persist and I could end up stalling in the middle of the highway, Vehicle only has 31,000 miles on it.

- Pompano Beach, FL, USA

Toward the end of October 2024, my truck's check engine light came on. I took the vehicle to the dealership to have the oil changed. Two days later, the engine said, "Engine power reduced, " so I took it to a repair shop, and they diagnosed the timing chain. I took it to another repair shop for a second opinion, and they also diagnosed the timing chain.

- Bryans Road, MD, USA

The throttle and accelerator pedal is very HOT- highly sensitive, resulting in jerky lunging upon start off in 1st gear from a dead or 1 mph stop. The vehicle has been into the dealer 2 times for this issue with the same repair comments, vehicle meets all factory specs and all XT 4 react this way- well that's not safe. If that's the case, then this is a design defect which is unsafe as the accelerator pedal reacts to quickly with a non-smooth action and lunging which could cause a rear end collision. Other car evaluators have also indicated the XT6 has a jerky accelerator, just like what I am reporting. It may be the TPS -Throttle Position sensor in combination with the APS-Accelerator Position sensor. Sometimes it is so violent it throws occupants backward into the seats. Dealer says within spec. GM needs to solve this issue.

- Reno, NV, USA

Mil lamp illuminated, lost power and transmission would not shift while underway in traffic

- Kewadin , MI, USA

Car shuttering/bucking during acceleration from stop and at steady highway speed. Tachometer showed approx three hundred RPM fluctuation at steady speed. Dealer stated car has leaked coolant into transmission from trans cooler causing fialure of transmission.

- Santa Maria, CA, USA