For some reason, my passenger side mirror will no longer lower when I shift into reverse on my 98 LSC. The driver side still works fine. I also noticed that I can adjust the passenger mirror with the adjustment switch so I'm assuming that the internal motor is okay and nothing is stuck. I hate electrical problems! Can anyone give me any advice on where to start to try and trouble shoot this issue? I actually use this feature to help me park close to the curb on narrow and busy streets. Any suggestions would be appreciated! Thx!