2013 Buick LaCrosse Owner Manual - Page 46

2-16 Keys, Doors, and Windows When the vehicle is shifted to R (Reverse), both the driver and passenger mirrors will tilt downward. They will return to their previous position when the vehicle is shifted out of R (Reverse), the ignition is turned to OFF, or the vehicle is left in R (Reverse) for an extended period of time. This feature can be turned on or off. See Vehicle Personalization on page 5‑39. Heated Mirrors For vehicles with heated mirrors: Interior Mirrors Manual Rearview Mirror Adjust the inside rearview mirror for a clear view of the area behind your vehicle. To avoid glare of the headlamps from behind, push the tab forward for daytime and pull it for nighttime use. Vehicles with OnStar have three control buttons at the bottom of the mirror. See your dealer for more information about OnStar and how to subscribe to it. See OnStar Overview on page 14‑1. 1 (Rear Window Defogger): Press to heat the mirrors. See "Rear Window Defogger" under Dual Automatic Climate Control System on page 8‑1. Park Tilt Mirrors If the vehicle is equipped with memory mirrors, there is an option to have the mirrors tilt down, when in R (Reverse), to more easily see the ground near the vehicle. Automatic Dimming Rearview Mirror On vehicles with an automatic dimming inside rearview mirror the automatic dimming reduces the glare from the headlamps of the vehicle behind you.