NHTSA Complaint #11665987 — 2016 GMC SIERRA 1500

The contact owns a 2016 GMC Sierra 1500. The contact stated that while her and her husband were driving on several occasions at various speeds, the brake was depressed; however, the braking distance was extended, and the vehicle took longer to slow down. The contact also stated that occasionally while driving at undisclosed speeds, her husband observed a loud sound coming from the engine compartment. The vehicle was taken to the dealer where it was diagnosed and determined that the engine and braking system needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was unknown.