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 2000-2003 models is #4114K (trade number).
Daytime Running Lights are Prone to Burning Out on GMC Sierra Denali
Average mileage: 52,860 (44,000–67,000)
10 people reported this problem
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running lights burn out constantly
My driver side bulb just went out. A few days after my passenger side headlight went out.
my day time lights and the fog lights have quit!