Exterior Lighting Related Problems of the 2003 GMC C4500

Table 1 shows one common exterior lighting related problems of the 2003 GMC C4500.

Table 1. Exterior Lighting related problems of GMC C4500

Problem Category	Number of Problems
Headlights problems	1

Headlights problem

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.

Exterior Lighting related problems in other GMC C4500 model year vehicles:

Hazard Flashing Warning Light problems of the 2005 GMC C4500

Switch Make:

Switch Model:

☘ C4500 Service Bulletins

⚑ C4500 Safety Recalls

☤ C4500 Defect Investigations