My 2001 C5 Black Coupe seems to be having age issues with only 56K on
the clock. The starter failed in the Wall Mart parking lot. Long
shaggy dog story but I had the starter replaced and that is good.
I have a new issue with the left door lock. If I exit the vehicle and
lock the doors with the key FOB, it does not always lock the left door
and when I open it the security system (horn and Lights) goes alerts the
I suspected a bad door lock motor (or whatever it is called); however, I
can manually lock the door and it stays locked until I use the key FOB to
unlock it. No security alert.
The alert seems to happen only when locked by the Key FOB. Is there
a sensor in the left door that could be causing the problem.