OnStar provides services including Stolen Vehicle Assistance, Remote Ignition Block, and Roadside Assistance, if equipped. OnStar can unlock the vehicle doors remotely, if equipped with automatic door locks, and can help police locate the vehicle if it is stolen.
Emergency
NavigationWhat to Use
Warning
Adding only plain water or some other liquid to the cooling system
can be dangerous. Plain water and other liquids, can boil before the proper coolant
mixture will.
The coolant warning system is set for the proper coolant mixture.
With plain water or the wrong mixture, the engine coul ...
Turn and Lane-Change Signals
Move the lever all the way up or down to signal a turn.
An arrow on the instrument cluster flashes in the direction of the turn or lane
change.
Raise or lower the lever until the arrow starts to flash to signal a lane change.
Hold it there until the lane change is completed.
If the lever ...
Seat Adjustment
Manual Seats
To adjust the seat:
Lift the bar under the front edge of the seat cushion to unlock the seat.
Slide the seat to the desired position and release the bar.
Try to move the seat back and forth to be sure it is locked in place.
See Seat Adjustment on page 3-5.
Seat Height A ...