Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2014 GMC Acadia owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2014 GMC Acadia. The contact stated that while in park(P), the vehicle rolled, requiring the driver to turn off and restart the vehicle, and the vehicle successfully shifted in park(P). Additionally, the contact stated that while driving at various speeds, the vehicle jerked. The contact stated that while driving 60-65 MPH, the vehicle shut off, and the steering wheel and the wheels locked up. The contact was barely able to pull over to the side of the road, where the contact waited before restarting the vehicle. The contact stated that the Check Engine warning light was recently illuminated. The vehicle was towed to two independent mechanics, where several diagnostic trouble codes associated with the transmission and the transmission module and solenoid were retrieved. …
Vehicle is randomly stalling or going into limp mode when driving. Has done it in intersections, driving down the hight way and even stopped in a parking lot. No warning but throws codes unrelated to the problem. I've been told that it shuts off half of my engine randomly while running and that contributes to the stall. Can cause accident if stalls while turning or even if in wrong lane on high way. You loose all power steering and basically have to coast to safety. Sometimes it re starts some times your stuck there with no reasons for it to not re start. Usually it starts same day when this happens but hours later. Sometimes it stutters and you know it's coming but not often will you get this warning. I've replaced every thing in every code it's thrown and still can't go a week without stalling out. Very unsafe for families just trying to go anywhere. …
If the module experiences an electrical short, the vehicle could stall, increasing the risk of a crash. NHTSA ID Number: 14V614000 Manufacturer General Motors LLC Components ELECTRICAL SYSTEM Potential Number of Units Affected: 106307 Summary General Motors LLC (GM) is recalling certain model year 2013-2014 Cadillac CTS, Escalade, Escalade ESV, Chevrolet Suburban, Tahoe, GMC Yukon, and Yukon XL, and 2014 Buick Enclave, Chevrolet Express, Impala, Silverado HD, Traverse, GMC Acadia, Savana, and Sierra HD vehicles. In the affected vehicles, the chassis electronic module may be internally contaminated, resulting in an electrical short. Remedy GM will notify owners, and dealers will replace the chassis electronic module, free of charge. The recall began on December 26, 2014. …
My 2014 GMC Acadia constantly displays "Service Stabilitrak," "Service Traction Control," ABS, brake, and check-engine warning lights. The vehicle will not accelerate past 40 mph under normal driving. Recently, the vehicle began showing "Engine Power Reduced" randomly without any warning, and the vehicle loses power suddenly. The OBD2 code P1682 (Ignition 1 Circuit/Relay failure) appears every time. This issue has caused the vehicle to jerk, lose acceleration, and even stall in the middle of an intersection during rush-hour traffic while my children were in the car, creating a serious safety hazard. These warnings and symptoms are constant, and the power-reduction events occur unpredictably. No official inspection has been completed by the manufacturer. The failed component is still in the vehicle and available for inspection. …
While traveling approximately 75mph the Service Traction Control light came on followed closely by the Low Oil Pressure Stop Engine Immediately light. We attempted to travel to a more safe area along the interstate. Within seconds the engine immediately shut off causing the loss of power steering and power brakes. The steering wheel locked in place causing the total loss of steering control. We were able to bring the vehicle to a safe stop, I would attribute this success to my being a Defensive Driver Instructor and Transportation Safety Professional. The risk associated with the issues we were faced with could have easily ended in tragedy especially at this speed (75 mph, 80 mph zone) The diagnosis of the vehicle was inconclusive due to the number of codes that were shown. The vehicle was no longer functional and had to be replaced. …
Engine randomly shuts off when driving for no reason. Will restart and check engine light comes on. Has now happened three times , twice to me in traffic. One of those the car went into a limp mode where it wouldn't drive above 30mph at most. This is very unsafe in the middle of highway traffic. The second happened approaching a traffic light , I put the car into neutral and luckily it restarted and check engine light came on. The third time my wife had her friends in the car and it shut off at a light , she had no idea what to do. I had her stay there and brought her our other car. I have read this is caused by a known fuse box issue. They should be made to fix this problem before someone gets seriously hurt driving in traffic.
Got onto the interstate and suddenly my car stopped but didn't kill. My traction control light said off and then it said reduced engine power and my fuel went down to E. I couldn't go but my car was still running. I killed it then waited a minute and started it again and it started moving slowly. Then it said service stabliltrak and traction system but since the light have went off. Around the same time I started hearing popping and crackling sounds from my speaker and now I have no interior sound at all just popping sounds no matter if my car is started or not. I'm scared it's going to catch on fire or something
Vehicle stalls intermittently. Due to an earlier recall of the same model but not including the one I own. There is electrical shorting inside the fuse box in the ignition circuitry that causes this problem. This is a huge problem as there is no preemptive warning. Whether you're driving 5 mph or 55 mph it happens suddenly and without any warning. The incident is stored in OBDII codes. There are no warning lamps until after 5he vehicle stalls out. #PIT5643. GM#14515. YouTube channel "Sparky's Answers" 2014 GMC Acadia, Stalls Sometimes, Codes - P0689 , P1682
While driving at 70mph legal speed limit the engine lost all power and ability to brake or steer with and power assistance, mechanic has since told me the timing chain failed and destroyed the engine. Vehicle had aproxmitly 99k miles on it and in good repair. No warning that it was going to fail and was told that this is a common failure with the engines in most gmc / chevy / buick mid size svu.
Suv stalled and everything shut off and could not start ! It has happened twice and have had it in dealership and they cannot find the problem. Battery's has been replaced but I believe its electrical!
Engine complaints in other Acadia years
Frequently asked questions
How common are engine problems on the 2014 GMC Acadia?
NHTSA has 47 complaints about the engine & cooling of the 2014 GMC Acadia, 10% of the model year's 463 complaints.
Is there a recall for 2014 GMC Acadia engine problems?
No. NHTSA lists no engine & cooling recall for the 2014 GMC Acadia, though it has 6 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2014 GMC Acadia engine problems start?
Half of the complaints with a recorded mileage happened before about 65,000 miles, and 24% before 25,000 miles.
Is it dangerous?
Owners linked 1 crash, 0 fires and 2 injuries to engine & cooling problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.