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 1999-2003 models is #4114K (trade number).Google+
Car Problem Reports
Chevrolet Silverado 2500 Daytime Running Lights are Prone to Burning Out
Chevrolet Silverado 2500 Problem
Average Mileage: 155,000 mi (90,000 mi - 220,000 mi)
Visitor, 1999 Chevrolet Silverado 2500, 90,000 mi
Daytime running lights will not work.
these lights burned out at 50,000 miles.