There are 3 stored owner reports matching the powertrain & transmission leading-label group for the 2014 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)WHEN IN GEAR, THE MOTOR WOULD REV AT HIGH SPEEDS WITHOUT ENGAGING. CAR IS SIX YEARS OLD WITH 104,000 MILES. VERY DANGEROUS ON THE HIGHWAY. OUR YUKON XL WOULD HAVE LIMITED POWER AND BUCK WITHOUT KEEPING SPEED. THOUGHT WE WERE GOING TO GET REAR ENDED MULTIPLE TIMES ON THE HIGHWAY (I-95) AS PROPULSION WAS NONEXISTENT. HAD TO PULL OFF THE ROAD, THEN SLOWLY GAIN SPEED TO GET BACK ON THE ROAD AND THIS HAPPENED MULTIPLE TIMES.
UNDER NORMAL DRIVING THE VEHICLE WILL GO INTO "REDUCED ENGINE POWER" MODE WHILE SAYING SERVICE STABILITRAK AND STABILITRAK OFF. GIVE THE CODE REFERENCING A 5A REFERENCE. I HAVE REPLACED THE ECM 2X, THE ACCELERATOR PEDAL ASSEMBLY, THROTTLE BODY ENTIRE, HIGH PRESSURE FUEL SENSOR PROBLEM CONTINUES WITHOUT REMEDY. HAS HAPPENED TO MANY TIMES TO COUNT STARTING IN DEC 2008 TO PRESENT
DRIVERS SIDE POWER RUNNING BOARD STOPPED WORKING CAR HAD BEEN MAKING POPPING NOISE ON THE WAY TO WORK THIS MORNING DRIVERS DOOR FLEW OPEN HAD TO HOLD IT SHUT WOULDN'T SHUT THEN GOT IT SHUT BUT DOOR HANDLE BROKE CAN'T OPEN IT
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.