Home · 2014 GMC Yukon Denali Xl 1500 · Complaints
These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.
3 of 77 complaints match · Transmission & drivetrain · clear filters
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.
NHTSA ODI 11363357
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
NHTSA ODI 11279693
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
NHTSA ODI 11204095
Working with the data? Download all 77 complaints as CSV · fetched from NHTSA July 25, 2026