Where is a motion sensor located on a 2003 pontiac grandam?

my security light stays on all the time and they say its the motion sensor.Where is a motion sensor located on a 2003 pontiac grandam?have codes read gm doesnt install motion sensors on cars who ever told you that they are nuts most likely passlock problemWhere is a motion sensor located on a 2003 pontiac grandam?There is no motion sensor unless it is an aftermarket alarm. Have it scanned for codes and go from there. Most likely a passlock problem or BCM.

Are you having any starting problems?Where is a motion sensor located on a 2003 pontiac grandam?The first two answer are right, its the pass-lock or Body Control module. Are you getting water on the passengers floor after it rains ? If so the BCM is also getting wet and the wires are corroding. Need to clean harness and stop water leak, How worn is your key ? worn key can turn light on.