Problem Description and Possible Solution
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 2002-2003 models is #4114K (trade number).
Average mileage: 100,715 (2,000–160,000)
24 people reported this problem
Have had to replace both running lights 2 or 3 times now. One was working, but when it went out, the dome, and backup lights also stopped working.
This problem started when the vehicle was around 3 months old and I gave up when it was 5 years old it is now 12 years old. Replaced the driver side running light approx. 15 times (new bulb may last 2 weeks but no longer) and have never had to replace the passenger side. The dealer didn't help. It is possibly a voltage problem. Thought about jumping a wire from the right side to the left .
Multiple driver side daytime running light burn outs. Sometimes only lasts a few days. Only one burn out on passenger side. Probably 10 lamps between 69,000 and 189,000 miles. See a lot of Avalanches on the road with one light out.
After replacing bulbs twice, I went to amber lights. These have not burnt out yet. That was 7 years and 140,000 miles ago.