Navigation
OnStar navigation requires the Directions and Connections service plan.
Push 
to receive directions or
have them sent to the vehicle
navigation screen. Destinations can
also be forwarded to the vehicle
from Google Maps™ or
MapQuest.com. The OnStar
mapping database is continuously
updated. Visit www.onstar.com for
coverage maps.
See also:
Side Blind Zone Alert (SBZA)
The vehicle may have a Side Blind Zone Alert (SBZA)
system. Read this entire section before using the
system.
WARNING:
SBZA is only a lane changing aid and does not
replace driver vision. SBZA ...
Automatic Operation
AUTO (Automatic Fan): When AUTO is selected on
the fan control, the system automatically adjusts the fan
speed. If the OnStar® system is activated when this
position is selected, the fan speed ...
Rear Window Defogger
(Rear Window Defogger): Press to
turn the rear window defogger on or off.
The rear window defogger turns off automatically after about 10 minutes. If turned
on again it runs for about five minute ...