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
2014 gmc Yukon powertrain problems
moderate 3 complaints filed with NHTSA · avg repair $2,500
Complaints
3
Recalls
0
Crashes
0
Avg fix
$2,500
What owners are reporting 2 most recent
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 TH…
Common questions
How serious is the powertrain problem on the 2014 gmc Yukon?
It's a documented issue but not catastrophic. 3 complaints have been filed. Repairs average $2,500 and most owners catch it before it causes a breakdown.
At what mileage does the powertrain typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $2,500 for powertrain repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to powertrain?
No active recalls currently cover powertrain issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Severity ratings are derived from reported crashes, fires, injuries, and fatalities.
Repair cost estimates are independent-shop national averages and may differ in your area.
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