There are 3 stored owner reports matching the engine leading-label group for the 2012 GMC Yukon in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 3 of 3 matching reports.
Open the full vehicle complaint log (all categories)The contact owns a 2012 GMC Yukon. The contact stated that years ago, the engine was replaced with a rebuilt engine. Recently, after starting the vehicle, there was an abnormal banging sound coming from the engine. The banging sound continued, and the vehicle shut off without warning. Due to the failure, the vehicle was towed to an independent mechanic, and it was discovered that an engine bearing had failed, and the vehicle was diagnosed with engine failure. Neither the dealer nor the manufacturer was notified of the failure. The vehicle was not repaired. The failure mileage was approximately 47,000.
LIFTER FAILURE. HOPING NO CAMSHAFT DAMAGE. 3 WEEKS WAITING ON PARTS THAT APPARENTLY CAN'T BE FOUND. WAS DRIVING APPROX 35 MPH WHEN HORRIBLE TICKING NOISE OCCURRED. QUICKLY ASSESSED NOTHING IN WHEEL WELL. NOISE COMING FROM ENGINE. LIMPED CAR DIRECTLY TO MECHANIC AS FEARED MORE DAMAGE OR COMPLETE ENGINE FAILURE IF DRIVEN MORE MILES. SINCE BECOME AWARE OF ISSUES WITH THIS ENGINE AND THAT CHANGES WERE MADE IN 2014. LESS THAN 90K MILES ON THE CAR.
@ 97,000 MILES, GETTING CYLINDER #4 MISS FIRE CODES, REPLACED ALL PLUGS AND AFFECTED COILS PACKS. NOW MOTOR IS MAKING A TICKING SOUND FORM LIFTERS. DEALER SAID IT NEEDS NEW ENGINE DUE TO THE AFM SYSTEM PROBLEMS.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.