Table 1 shows one common exterior lighting related problems of the 2021 GMC Yukon.
| Problem Category | Number of Problems |
|---|---|
| Exterior Lighting problems |
The lighting on the entire interior infotainment area will randomly go bright and dim all by itself. I was almost in an accident on the interstate due to this. It was blinding and distracting to have the lighting dim and then go bright. It has been randomly doing this for about a month. I called GMC and they said they had no record of this happening on other vehicles, however when I searched for the issue with my vehicle, I realized other GMC owners have experienced the same issue. I was able to get a video of it happening one morning while waiting in my driveway to drop my kids off at the bus stop. I was in the parked position. There are no warning or messages when the lighting malfunctions, so I am not at all prepared when the car turns the lighting to max brightness. It poses a risk when driving by blinding the driver, causing the driver to loose focus while driving trying to adjust the lighting back to dim. It is an unnecessary distraction. The dealership couldn't confirm any malfunctions in my car. As previously stated, I have a video of the malfunction, but I am not able to upload it. I am willing to send via email.
2021 GMC Yukon headlight condensation with no accidents or exterior factors. Fills up with water and causes light bulbs burnout and safety issues. Reports driver’s side headlight to dealer’s service department. Day light went out followed by headlight and signal. Now passenger side is also developing condensations. Called GMC, and dealer. No solution or explanation of why this happens to a year old car.