View attachment 21139
Since GMC eliminated tailgate open indicator in DIC, I fabricated and installed a tailgate open alarm/indicator, over the weekend. No extensive wiring; instead repurposed a wireless remote on/off key and its remote receiver, a reed switch at the tailgate end, driving a buzzer/indicator installed invisibly out of the way above passenger footwell. The alarm/tone is loud and annoying enough, to not ignore. Works exactly as designed and triggers when tailgate is left open with ignition on and also if accidently dropped and also when dashboard piano key pressed, when its inhibit conditions are not met (Ignition on, vehicle in any gear, all passenger doors locked). I feel much better now, carrying valuable cargo in my truck bed. This setup does not have an override for when one needs to drive with an open tailgate for any reason; for that an inline power switch may be installed for the receiver.
. The door and tailgate badges are now gone, along with the tailgate sierra badge. I almost pulled the gmc logo, but I feel the tailgate needed something. Maybe I'll change the color on that or something down the road.
