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Hey everyone, I don't normally post much mechanical because I'm not. But thought this might help someone since I couldn't find much about it when I searched. My garage door came down and clipped my bumper slightly and apparently popped the right rear sensor out of the round "plastic bezel" that holds it in the bumper. Of course when I backed up the first time after this, my right rear signaled a obstruction -- I thought "what the heck?". I found the sensor still in the bumper, still connected to the wire. IGNORE THIS PARAGRAPH TO SAVE TIME IF YOU'D LIKE AS I PUT SOME WHINY LANGUAGE IN IT ABOUT 2015 CHEVY SILVERADO'S ENGINEERING, QUALITY, AND OUT OF WARRANTY COSTS THAT HAS ME A BIT PERTURBED -- But much to my surprise, it wasn't just a matter of putting it back in the "bezel" (which would take like 30 seconds) because you can't fit your hand into the bumper to do that. "No problem I thought"--I'll simply remove the plastic step on the bumper on that side to get access (probably a 5-10 minute delay) -- I figured it was the reason the chevy engineers didn't provide access from under the bumper. But "noooooo", that plastic step doesn't come off unless you take off the bumper apparently -- Really? Probably the same design team that designed the condenser that develops a hole ($1000+ repair if out of warranty) or the guys that painted my 2015 truck at the factory that is now peeling -- but I digress! Back to the sensor, since I couldn't get access -- I put a small piece of Velcro on the back of the sensor (you can grab the wired sensor with a finger and pull it out of the hole in the front of the rear bumper). I then put the mating Velcro on the end of a skinny tool (8" socket wrench extension). Then I mated up the two and poked the sensor back into the bracket and pulled the tool out/off the sensor. Worked like a champ! Somebody is going to wonder why there's a piece of Velcro on the back of that sensor someday -- but a Chevy engineer will understand (oops there a go again). Incidentally, it looks like the middle sensors are completely accessible. I know this "sensor dislodging" may be rare but I assume that some sensors do go bad and this technique would work to replace a sensor. Come on GM, engineer the truck for ease of repair!