My side mirrors no longer tilt down when the vehicle is in reverse. Is there a way to reset them?

 

Is the switch that controls the right/left settings positioned on either the left or right side? The mirrors won't tilt down (when the GX is placed in reverse) when this switch is in the neutral or middle position. Otherwise, I don't know the answer to your problem.

 

My mirrors don't tilt on my 05 RX330, but they kind of twitch, like a malfunction. The way I reset them is to move the mirrors all the way up then all the way down. Set the mirrors back into position and they should be reset.