My 2014 Impala LTZ , the "reverse tilt mirror" option quit working, (intermittently). Most of the time it doesn't work, either by selecting just drivers side, or selecting "both driver and passenger side". When I move the mirror manually, and put it in reverse, then it will tilt. After parking the car for awhile, and then put in reverse, the mirrors won't tilt, until I again mess with the manual adjustment. Anyone had or are having this problem. I have 2 months left on my 36 month B2B warranty, so will have to take it in.