OnStar Overview
EmergencyTurn 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 ...
Instrument Panel
Air Vents on page 8-3.
Exterior Lamp Controls on page 6-1.
Horn on page 5-2.
Instrument Cluster on page 5-8.
Windshield Wiper/Washer on page 5-3.
Infotainment on page 7-1.
Information Display.
Hazard Warning Flashers on page 6-3.
Instrument Panel Illumination Control on page 6 ...
Tire Inspection
We recommend that the tires, including the spare tire, if the vehicle has one,
be inspected for signs of wear or damage at least once a month.
Replace the tire if:
The indicators at three or more places around the tire can be seen.
There is cord or fabric showing through the tire's rubb ...