Wiper Arm Assembly Protection
When using an automatic car wash, move the windshield wiper lever to OFF. This disables the automatic Rainsense windshield wipers and/or rear wiper.
With Rainsense, if the transmission is in N (Neutral) and the vehicle speed is very slow, the wipers will automatically stop at the base of the windshield.
The wiper operations return to normal when the transmission is no longer in N (Neutral) or the vehicle speed has increased.
See also:
Cleaning Exterior
Lamps/Lenses and Emblems
Use only lukewarm or cold water, a
soft cloth, and a car washing soap
to clean exterior lamps and lenses.
Follow instructions under "Washing
the Vehicle" later in this section. ...
Interior Mirrors
Automatic Dimming
Rearview Mirror
The vehicle has an automatic
dimming inside rearview mirror.
Automatic dimming reduces the
glare of headlamps from
behind you.
If the vehicle has a rear vi ...
Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will
check the engine, transmission, antilock brakes, and major vehicle systems. It also
checks the tire pressures, if the v ...