OnStar Overview
EmergencyChecking Coolant
The vehicle must be on a level surface when checking the coolant level.
It is normal to see coolant moving in the upper coolant hose return line when
the engine is running.
Check to see if coolant is visible in the coolant surge tank. If the coolant
inside the coolant surge tank is boiling, do ...
Airbag Readiness Light
This light shows if there is an electrical problem with the airbag system. The
system check includes the airbag sensor(s), passenger sensing system, the pretensioners
(if equipped), the airbag modules, the wiring, and the crash sensing and diagnostic
module. For more information on the airbag ...
Dinghy Towing (with Manual Transmission)
To dinghy tow the vehicle from the front with all four wheels on the ground:
Position the vehicle to tow and then secure it to the towing vehicle.
Shift the transmission to Neutral.
Turn the ignition to ACC/ ACCESSORY.
Caution
If 113 km/h (70 mph) is exceeded while towing the vehicle ...