2004 Hummer H2 Repair Question
Hummer 2004 H2
Answer
Is it just the daytime running lamps you are concerned about at this point? If it is parked in the daylight, and you press unlock on the transmitter, the DRL's should come on, do they then? You can also check them by the following; turn the key on, and shift the lever from park to any other gear(be sure to have a window down or you will lock the doors when shut). Place a light shining directly on the photocell near the center of the dash panel, and wait a few minutes. When the headlights transition off, your DRL's should come on. If they don't at this time, check for power and ground to the DRL sockets and replace bulbs if you have PWR/GND. I am not certain, some did/some didn't, but make sure that the park brake is not on during the above procedure, as it may override the DRL's off. Just block a tire to prevent it from rolling.