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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Viewing 1 - 3 of 3 problem details
2004 GMC Sierra Denali 47,581 mi, Visitor
running lights burn out constantly
2003 GMC Sierra Denali 44,000 mi, Visitor
My driver side bulb just went out. A few days after my passenger side headlight went out.