Vehicle Speed Messages
SPEED LIMITED TO XXX MPH (KM/H)
This message displays when your vehicle speed is limited to 128 km/h (80 mph) because the vehicle detects a problem in the speed variable assist steering system.
Have your vehicle serviced by your dealer.
See also:
Onstar.com
The website provides access to account information, manages the OnStar subscription,
and allows viewing of videos of each service. Get subscription plan pricing and
sign up for OnStar Vehicle Diag ...
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 vehic ...
Power Mirrors
Vehicles with outside power mirrors have controls located on the driver door.
To adjust each mirror:
1. Press (A) or (B) to select the driver or passenger side mirror.
2. Press the arrows on the ...