I have a 2018 Model 3 LR and when pulling out of my driveway one evening, my neighbor informed me that my right-hand back-up (reverse) LED strip wasn't illuminated. I read somewhere that the Model S only has one back-up light, but I think the Model 3 is supposed to light up on both sides. My friend also has a 2018 Model 3 and both of his reverse lights come on. I tried to make a service appointment through the app but a message keeps popping up "Please Try Again", which I've done numerous times with no luck in completing the scheduling. Grrrrr