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.
Connections
OnStar Additional InformationEngine Heater
The engine heater can provide easier starting and better fuel economy during
engine warm-up in cold weather conditions at or below -18°C (0°F). Vehicles with
an engine heater should be plugged in at least four hours before starting.
Turn off the engine.
Open the hood and unwrap the ...
Customer Assistance Offices
Chevrolet encourages customers to call the toll-free number for assistance. However,
if a customer wishes to write or e-mail Chevrolet, the letter should be addressed
to:
United States and Puerto Rico
Chevrolet Motor Division
Chevrolet Customer Assistance
Center
P.O. Box 33170
Detroit, MI ...
StabiliTrak® OFF Light
This light comes on briefly while
starting the engine. If it does not, have the vehicle serviced by your dealer.
This light comes on when the StabiliTrak system is turned off.
If StabiliTrak is off, the Traction Control System (TCS) is also off.
If the StabiliTrak and TCS are off, the system do ...