The daytime running lights are prone to burning out. Our technicians tell us that the light sockets may show signs of heat damage but usually are OK. Always be sure to use the correct replacement bulb for the best life expectancy. The new bulb recommendation for 2001-2003 models is #4114K (trade number).Google+
Car Problem Reports
Chevrolet Silverado 2500 HD Daytime Running Lights are Prone to Burning Out
Chevrolet Silverado 2500 HD Problem
Average Mileage: 78,000 mi (40,000 mi - 143,000 mi)
Visitor, 2003 Chevrolet Silverado 2500 HD, 57,000 mi
The first one that burned out on the truck - running light. I bought this truck new and this is the first bulb to burn out. I know none have been replaced before. The one that came out was a 4157K. The book says 4114?
Visitor, 2003 Chevrolet Silverado 2500 HD, 40,000 mi
Daytime running lights keep burning out.
Visitor, 2004 Chevrolet Silverado 2500 HD, 143,000 mi
Burn out several times and see many other Silverados with one-eye. so far only replaced bulbs, no sign of stress or corrosion on the socket
Visitor, 2007 Chevrolet Silverado 2500 HD, 75,000 mi
replaced around 75,000 and just replaced the same one again 3 days ago around 162,000
Visitor, 2005 Chevrolet Silverado 2500 HD, 75,000 mi
I have had to replace the daytime running lights about every other year