I have a 2006 Silverado HD2500. It started doing something strange. The vehicle is parked in my driveway. Every so often the taillights/brake lights flash on for a second then go out. There's no one near the remote or near the truck when it does it. :confused:

The truck has Onstar ( In-active account). Is someone trying to unlock it?

Doors are locked, Lights are off, theft deterrent system is working properly.

Any Ideas????

One other thought I had is, it might be the brake controller. Its a curt captivator 4.