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:
Hood
To open the hood:
1. Pull the release handle located below the instrument panel to the left of
the steering wheel.
2. Move the secondary hood release lever to the right to release the striker. ...
Tachometer
The tachometer displays the engine speed in revolutions per minute (rpm). ...
Highway Hypnosis
Always be alert and pay attention to your surroundings while driving.
If you become tired or sleepy, find a safe place to park the vehicle and rest.
Other driving tips include:
• Keep the vehicle ...