One problem related to radiator has been reported for the 2015 GMC Sierra. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2015 GMC Sierra based on all problems reported for the 2015 Sierra.
The contact owns a 2015 GMC Sierra 1500. The contact stated while driving 65 mph, there was a loud pop in the engine compartment. The vehicle was steered to the side of the road where condensation was observed in the middle of the road. The vehicle was towed to a dealer where it was diagnosed that the radiator and transmission needed to be replaced. The vehicle was not repaired. On another occasion, while driving at approximately 20 mph, the vehicle lost motive power. The vehicle was towed to a dealer where it was determined that the engine needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was approximately 170,000.
| Engine And Engine Cooling problems | |
| Radiator problems |