Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the vehicle is equipped with the Tire Pressure Monitoring System. If a diagnostics check is needed between e-mails, push 
, and an Advisor can run a check.
See also:
Electronic Transfer Case
The transfer case knob is located next to the steering column.
Use the dial to shift into and out of four-wheel drive. ...
Hood
To open the hood:
1. Pull the handle with this symbol on it. It is located inside the vehicle to the left of the brake pedal.
2. Go to the front of the vehicle and locate the secondary hood rele ...
Entry Lighting
The vehicle has an illuminated entry feature.
When the doors are opened, the dome lamps will come on if the dome override button is in the extended position. If the dome override button is pressed in ...