Diagnostic Aids

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

The following symptoms are noticeable signs of bulb failure:

Lights go out, caused when the ballast detects excessive, repetitive bulb re-strike.
Color change-The lamp may change to a dim pink glow.
Refer to Exterior Lighting Systems Description and Operation for more information on when to change the HID bulb.