Potential Issues
Some OnStar services are disabled after five days. OnStar cannot perform Remote Door Unlock or Stolen Vehicle Assistance after the vehicle has been off continuously for five days. After five days, OnStar can contact Roadside Assistance and a locksmith to help gain access to the vehicle.
See also:
Feature Settings Menu Items
The following are customization features that allow you to program settings to the vehicle:
DISPLAY IN ENGLISH
This feature will only display if a language other than English has been set. This feat ...
Sheet Metal Damage
If the vehicle is damaged and requires sheet metal repair or replacement, make sure the body repair shop applies anti-corrosion material to parts repaired or replaced to restore corrosion protection.
...
Turn Signals When Towing a Trailer
The turn signal indicators on the instrument panel flash whenever signaling a
turn or lane change. Properly hooked up, the trailer lamps also flash, telling other
drivers the vehicle is turning, c ...