The dealer said that they ran diagnostics and tested the alternator. They did not mention the BCM. I have been told there are basicaly 4 other items to check. The instrument cluster, the BCM, the alternator and the serpentine belt. I mention the belt because when the lights are on the extra load on the alternator could cause the belt to slip.
Thank you for your response and I will have the dealer check all of these.
Wednesday, February 4th, 2009 AT 11:37 AM