Which parts fail
Components named in complaints (headlights, tail lights, turn signals, interior lights).
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 for several years, the headlight bulbs were replaced several times. The contact used several different brands of headlight bulbs, but the bulbs failed prematurely. The contact stated that the headlight bulbs were dim while using the low beam or the high beam headlights. Additionally, the turn signals failed to properly operate while engaging the turn signal lever. The contact stated that the sound for the turn signals was occasionally inoperable. The vehicle was taken to the same independent mechanic, who was unable to determine the cause of the failure. The vehicle was not taken to a local dealer for a diagnostic test. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 135,000.
I have 2 concerns and issues with my vehicle. 1st is the rear turn signal bulb and housing, I have read forums and researched the issue and many others have had the same issues and concerns, water is getting into the housing and is causing the bulb to blow and can possibly be causing fire/electrical with the wiring. 2nd is the front headlights the plastic round covering that's in surrounding the the glass that the light sits behind is melting and is causing visibility issues as well as potential fire. I can imagine why the plastic would be installed so close to a glass covering that holds heat. I really think that GMC needs to evaluate these concerns not only for safety but also the expense of the turn signal bulb that has been designed and cost over $100 because it couldn't be a simple bulb like most others. …
Tail lights/brakes light/blinkers The light kit cover seals break allowing water into the light kit. Water collects and shorts out the bulbs causing a dangerous hazard when rear lights fail to work in the proper manner. I have called to several places and am being told, yes, GMC has a defect on their rear tail lights. Seals were not done very well and supply cannot keep up with demand. The lights are over 300 each which is absolutely ridiculous. A part that is necessary to keep one safe and be able to signal to other drivers should not be this expensive when the manufacturer did not build a good product.
My left rear turn signal is not working. It is GM part number 13582912. I have checked with several GM dealers who have. Confirmed there are none available. Just for the sake of it, 3 dealers have it on order but have no confirmed delivery date. Some parts stores say it's is discontinued. There are no other aftermarket parts to substitute. This is a significant safety issue the GM needs to correct.
Head lights quit working. I had two children in the car with me and it was night time, and I could've collided with another car. This just happened tonight, so I have not taken it to the dealer yet or a certified mechanic. There were no warnings of any kind before this happened.
I noticed headlights not working low or high beam. LED lights around head lights worked and fog lights but no headlights. I normally keep it on auto, but I tried all positions and none of them worked.
I have many problems with this vehicle, numerous times. Inaccurate Fuel Gauge Reading- It has resulted in my vehicle running out of fuel and stalling, while on road. I have 4 children who are at risk of danger while in vehicle.The fuel warning light has illuminated when the gauge needle says I still have more than plenty of amount (a quarter of a tank or more at times. It differs). It was diagnosed with an electrical and fuel system failure. Electrical shorts and problems- Having electrical shorts on and off. Check engine light comes on/off Vehicle randomly failed to start. My vehicle was difficult to start and would require several attempts before starting. Power lock/unlock key fob doesn't work, replaced battery multiple times.windows and sunroof power windows do no work. Radio and dash turn off and restart. Check airbag light has been coming on and off. …
Bought car brand new 8-14. Since I have taken into dealership over 5 times regarding it stalling, and complete shut down while driving. First car would shut off when in reverse. Car turned off completely multiple times sitting at red lights. Then while I was driving 35 miles on residential street I had complete failure, car turned off. Was able to restart and drive. Car takes a couple seconds to turn over when first putting key in. Noticed recall in 10-14 for exact issue but GMC dealer in concord ca says my car is not included in it. Interior lights go on at random along with headlights. Gas gauge in "miles" reading on dash lowers by 20+ miles each time I drop kids off at school 5 miles away. Each time I have taken it to dealer, dealer stated they are unable to duplicate the events, no warning codes are showing and they can not find what's wrong with the car. Shocker. …
Tl* the contact owns a 2014 GMC Acadia. While driving 75 MPH, the engine power reduced, service stabilitrak, and traction control off warning indicators illuminated. As a result, the vehicle stalled and completely shut off. The contact mentioned that the failure occurred three times. The contact also mentioned that the headlights had to be replaced eight times within one year. The vehicle was taken to an independent mechanic who diagnosed that the vehicle had an electrical failure. The vehicle was not repaired. The vehicle was not taken to a dealer for diagnostic testing. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 77,000.
Car shut off while driving. All electrical went out. Doors all locked while inside, key stuck in ignition. Started with side detection warning and within a few days car completely shut off while driving! Huge safety issue! Will not restart and still can't get key out of the ignition. Battery is fully charged but no power. Completely dead. There is a known recall on 2014 GMC acadias for electronic module failure but not our specific vehicle though this seems to be the exact cause of our problems. GMC said they could not help?!
Headlight complaints in other Acadia years
Frequently asked questions
How common are headlight problems on the 2014 GMC Acadia?
NHTSA has 20 complaints about the lights of the 2014 GMC Acadia, 4% of the model year's 463 complaints. The component named most often is hazard flashing warning lights (1 mentions).
Is there a recall for 2014 GMC Acadia headlight problems?
No. NHTSA lists no lights 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 headlight problems start?
Half of the complaints with a recorded mileage happened before about 72,000 miles, and 27% before 25,000 miles.
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.