07 Chevy Cobalt lights

06-05-2009, 10:11 PM
my sister has a 2007 cobalt and for some reason all of a sudden her headlights will not turn off unless she disconects from the battery!!
Any Ideas on what it may be? Thank you

06-07-2009, 10:50 AM
The body control module (BCM) controls all these functions. Usually disconnecting the battery and 'rebooting' it is a cure. Did anything lead up to this? Aftermarket electronic installs? Trying to jump another vehicle? Typically these things don't go bad on their own.


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