My 'door open' idiot light (and dome lights) flash on when I hit a bump or a patch of rough road. I'm pretty sure the sensor in the tailgate is faulty. Is there a wire I can cut to deactivate the sensor completely without messing up my remotes?
what kind of sensor is for the tailgate? if its like the other doors and its a switch, I would replace the swtich. if its a contact plate, you may want to try and clean it as well as the contacts on the gate.
Does the rear dome light come on or just the front one? If it is the rear one or both then yes it is the tailgate sensor...These are just plunger style switches and can be replaced fairly cheap. Open the tailgate and make sure that it gets closed tightly...also if you have the rear spare tire carrier they have a problem with being hard to close all the way and making the plunger go just enough in to reset the switch but any vibration will cause it to lose contact.