OnStar Vehicle Diagnostics can perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and other major vehicle systems. It also checks the tire pressures, if the vehicle is equipped with the Tire Pressure Monitoring System. If an On-Demand Diagnostics check is needed, press , and an Advisor can run a check.
Reclining Seatbacks
Warning
If either seatback is not locked, it could move forward in a sudden
stop or crash. That could cause injury to the person sitting there.
Always push and pull on the seatbacks to be sure they are locked.
To recline the seatback:
Lift the lever.
Move the seatback to the desired p ...
Hazard Warning Flashers
The hazard warning flasher button is on the center stack.
(Hazard Warning Flasher): Press
to make the front and rear turn signal lamps flash on and off.
This warns others that you are having trouble. Press the button again to turn
the flashers off.
When the hazard warning flashers are on, ...
Blizzard Conditions
Being stuck in snow can be a serious situation. Stay with the vehicle unless
there is help nearby.
If possible, use Roadside Assistance. See Roadside Assistance Program on page
13-5.
To get help and keep everyone in the vehicle safe:
Turn on the hazard warning flashers.
Tie a red cloth t ...