2017 GMC Yukon lights problems

Filed Nov 16, 2025 · Lights · MI

We noticed the passenger side taillight was out. It’s not a simple bulb replacement but an entire assembly. It was put back in place and it lit up again. A few weeks later it wasn’t working. Pounded and tapped on it and it works again. We're guessing there is some sort of short so we asked for an estimate on getting an assembly replacement when it was in for a regular oil change. Shocked that a necessary part would cost $1,112.77!!! Whatever happened to changing a bulb for a few dollars?

Filed Jan 24, 2025 · Lights · 64,000 miles · NY

The contact owns a 2017 GMC Yukon. The contact stated that while depressing the brake pedal, the driver’s and passenger’s side taillights failed to illuminate as designed. The contact called the dealer about the failure and was informed that there were no recalls or warranties on the vehicle associated with the failure. The contact was also informed that the repair would be an out-of-pocket expense. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 64,000.

Filed Mar 12, 2024 · Lights · MI

Rear LED taillights circuit boards broken. Disabling both Stop tail lights causing serious safety hazard. We had no clue driving around and we didn't have any brake lights another driver had to tell us. So we googled this problem and it turns out that all of 2017 GMC Yukon have the same issue. There's even multiple websites to repair them as well as auto supply stores selling replacements for $1,000 and the dealership wants $1,500. This is a real problem and GM needs to make this right and recall all of these and replace them before somebody gets hurt if they haven't already.

Filed Jan 25, 2024 · Lights · TN

Rear (Tail/Stop) lights on both sides, would work intermittently. Turns out it’s a known issue with the LED circuit boards. They consistently break in 2 places, leaving the vehicle with no tail lights/stip lights. GM knows of the issue , but since it’s NOT CONSIDERED a Safety Issue, they do nothing. It’s clearly a safety issue, as following drivers may not see lights, on the rear. Clearly, it is definitely a safety issue, as it can easily cause an accident, not knowing a car is there in the dark , or not knowing that the vehicle in front of them is on the brakes, and slowing.

Filed Aug 24, 2023 · Lights · SC

The rear taillight has gone out. The LED board has a crack in the soldering causing the entire unit to malfunction.

Filed Aug 16, 2023 · Electrical, Lights · TN

LED brake light works intermittently.

Filed Aug 10, 2023 · Lights · 80,000 miles · TX

The contact owns a 2017 GMC Yukon. The contact stated that on several occasions while the vehicle was parked, the passenger’s side rear taillight failed to illuminate. The vehicle was taken to an independent mechanic where it was determined that the full assembly light kit needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the issue. The failure mileage was approximately 80,000.

Filed Jul 19, 2023 · Lights · PA

Rear brake lights fail due to an issue known by GMC - MULTIPLE GMC YUKON and YUKON XL have this issue. All within the same year. The metal connector in the Brake housing fails and requires it to be soldered or a complete replacement costing consumers $800+ for replacement. A severe safety issue as the Brake Lights quit working!!

Filed Jun 24, 2023 · Lights · TX

Rear tail lights failure.

Filed Jun 1, 2023 · Lights · KS

LED brake lights and tail lights not working on passenger side. Partial LED failure on driver side.