The contact owns a 2025 GMC Yukon. The contact stated that while driving at an undisclosed speed, the vehicle unexpectedly went into LIMP Mode with a limited speed availability message displayed. The vehicle was restarted; however, the failure recurred. The vehicle was taken to the dealer, where it was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 8,837

Vehicle went into limp mode while driving on the highway. Onstar said it was the transmission. Checked the oil and smoke was billowing out of the dip stick and there was no oil. None of the sensors indicated that there was low oil. After sitting and waiting for a tow truck rechecked the oil with the dipstick and there was oil in it. Now requires a new engine.

Engine started knocking and developed slow acceleration out of the blue. In addition car has locked up on freeway despite not having any cars around me. Its been in the shop for 3 days and still no diagnosis.

ENGINE died rattling sound undeer car shaking loss of power

Driving along on an empty road and my panoramic sunroof back glass exploded it sounded like a gunshot going off. Could have caused a wreck it was so loud and scary.