8.4
pretty bad- Crashes / Fires:
- 0 / 0
- Injuries / Deaths:
- 0 / 0
- Average Mileage:
- 3,763 miles
About These NHTSA Complaints:
The NHTSA is the US gov't agency tasked with vehicle safety. Complaints can be spread across multiple & redundant categories, & are not organized by problem. See the Back button — blue bar at the very top of the page — to explore more.
2016 GMC denali 2500 6.6L duramax diesel. Consumer writes in regard to faulty crankshaft that caused irreparable damage to engine.
- Mobile, AL, USA
The contact owns a 2016 GMC Sierra 2500. On several occasions, the vehicle stalled without warning at any rate of speed. Mastria Buick GMC (1525 new state hwy, raynham, MA 02767, (508) 880-7000) was notified of the failure several times. The vehicle was taken to the dealer numerous times, but they could not duplicate or diagnose the cause of the failure. The manufacturer was notified and stated that the matter would be escalated. The contact had not yet received a response from the manufacturer. The failure mileage was not available.
- East Freetown, MA, USA
The contact owns a 2016 GMC Sierra 2500. While driving approximately 15 mph, the engine stalled without warning. The vehicle was towed to a dealer where it was diagnosed that the fuel injector pump failed and needed to be replaced. The vehicle was repaired. The manufacturer was informed of the failure. The VIN was unknown. The approximate failure mileage was 11,000.
- Fountain Hills, AZ, USA
The contact owns a 2016 GMC Sierra 2500. The contact stated that there was an oil leak after seeing a puddle of oil under the vehicle. The failure occurred without warning. The dealer diagnosed that the turbo was defective and needed to be replaced. The vehicle was repaired; however, the failure recurred. The vehicle remained at the dealer where it was diagnosed that the oil cooler was defective. The oil cooler was replaced, but the failure recurred. The manufacturer was notified of the failure. The failure mileage was approximately 4,400.
- Lynchburg, VA, USA
While driving at 45mph in the left lane of a major city thoroughfare the engine quit running, power steering and brakes did not work. The check engine light came on when the engine quit running. I was able to get the vehicle stopped but the engine would not start. The vehicle was towed to the dealership where I was told this issue was reported in Arkansas, Louisiana and Tennessee. The dealership reported that shards of metal were found in the fuel injector and the entire fuel system would have to be completely replaced. Additionally I was told the parts are hard to get. The vehicle was purchased new and was 7 months old and had just over 7,000 miles. The vehicle is still sitting at the dealership 10 days later and has not been moved from where it was delivered by the wrecker service. GM has been notified but no response from GM or dealership management yet as to what caused the engine failure. I occasionally tow a fifth-wheel rv with this vehicle. I no longer feel safe driving the vehicle and would not consider purchasing another until a determination is made on exactly what went wrong.
- Little Rock, AR, USA
- Clovis, CA, USA