There are 3 owner-reported lighting complaints for the 2024 GMC Acadiain NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
I have had 3 taillights replaced. The first one was the driver's side taillight at Marty's GMC in Kingston MA. The second one was the passenger side taillight at Quirk GMC in Braintree, MA and the third one was the driver's side one again. the vehicle had approximately 28,000 miles when the 3rd taillight was replaced and was purchased in August of 2024. Both dealers stated that it was safe to drive the vehicle with the taillights not operating. The first 2 took approximately one week to get the part and the 3rd one took 4 weeks. I believe that this is a serious safety issue as the vehicle tailgate lights are only visible when directly behind the vehicle.
Rear driver's side brake light/turn signal is out. This is the second time in under a year. Local GMC dealer is not able to replace it within a reasonable amount of time causing a safety issue. This is a well known issue to GMC which is why the part is on back order. No other dealers in my area have the part in stock.
Left rear tail lamp failed after only 90 miles. It is available for inspection upon request. This tail lamp also contains the left turn signal, so when turning left, the signal flashes faster. The dealership has been notified of the issue and has inspected the issue in question. There were no warning lamps indicating the lamp was not functioning until I turned my left turn signal on. Now, there is a check left tail lamp indicator every time I use my left turn signal. I have been waiting on the replacement part for approximately 6 weeks with no ETA on a resolution, all while GM thinks its ok and safe that I drive my car without a left rear turn signal and brake lamp.
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.
Data synced from NHTSA on Apr 26, 2026