Exterior Lighting Related Problems of the 2005 GMC C4500

Table 1 shows one common exterior lighting related problems of the 2005 GMC C4500.

Table 1. Exterior Lighting related problems of GMC C4500

Problem Category	Number of Problems
Hazard Flashing Warning Light problems	1

Hazard Flashing Warning Light problem

When brakes are applied, the emergency lights stop working. Had a flat tire and pushed the emergency lights and used brakes to slow down and no one was aware that I had an emergency.

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

Headlights problems of the 2003 GMC C4500

Switch Make:

Switch Model:

☘ C4500 Service Bulletins

⚑ C4500 Safety Recalls

☤ C4500 Defect Investigations