I would recommend you pot your sensors asap! It was a very simple task to do.I haven’t read that it’s temp related but my sensor story went down like this -
‘20 JLUR. 1 year old with 5k miles. Drove from Phx to Coronado where I was going to be renting a house for a month. Hadn’t engaged the lockers for several weeks and that 500 mile all highway drive somehow triggered the light to come on.
Hopped on here and saw the threads that it was likely not gonna go away.
Super disappointed since I had just started the vacation but luckily it was only a light plus lack of ability to lock and didn’t experience any other issues as others have.
Got home and took to dealer, 2nd or 3rd one they had seen. Ordered me a rear axle and have been good to go since. Now just waiting for it to happen again…