GMC C4500 owners have reported 1 problem related to headlights (under the exterior lighting category). The most recently reported issues are listed below.
When the vehicle reached a speed of 50 mph, the head lights dimmed. When the lights are adjusted properly, they do not allow the proper light on the road at speeds greater than 50 mph. Dealer did not see the problem. Scc.
See
all problems of the 2003 GMC C4500
🔎.
| Problem Category | Number of Problems |
|---|---|
| Headlights problems | |
| Hazard Flashing Warning Light problems |