Table 1 shows four common exterior lighting related problems of the 2015 GMC Sierra. The number one most common problem is related to the headlights (20 problems). The second most common problem is related to the exterior lighting (eight problems).
| Problem Category | Number of Problems |
|---|---|
| Headlights problems | |
| Exterior Lighting problems | |
| Headlight Switch problems | |
| Fog Light Switch problems |
Headlights are far to dim and directional to drive safely at night. Had the light fix done at dealer. Now horizontal black line going down hill mean you can only see a very short distance in front of you? headlights still inadequate . Read details...
90% of my driving is at night. I drive on mixed roadways. I find that the headlamps on my GMC Sierra are inadequate at best. I brought the Sierra to the dealer, who performed a TSB, and although it improved the lighting, it is still way below par. Read details...
Headlights have been adjusted by the dealer twice. The headlights are a single bulb design (low and high beams from one bulb). If low beams are adjusted to adequately see the road during night driving the high beams point into the air (approx. 10 feet in the air at 100 feet from the vehicle). Read details...