Supersedes Technical Service Bulletin Group 94 number 13-10 dated March 4, 2013 for reasons listed below. This bulletin applies only to vehicles with xenon headlights. The customer complains of headlight flickering at highway speeds. There is no headlight warning in the cluster, and no DTCs are present in the system.The customer complains that the high beams do not function on one side or that one of the low beams flickers intermittently. Additionally, in vehicles with the Prestige trim level, an "Adaptive Headlight Defective" warning may be present in the cluster. DTCs may be stored in the vehicle electrical system control module. DTCs may be stored in the headlamp range control module.
