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 InformationDriving for Better Fuel Economy
Driving habits can affect fuel mileage. Here are some driving tips to get the
best fuel economy possible.
Avoid fast starts and accelerate smoothly.
Brake gradually and avoid abrupt stops.
Avoid idling the engine for long periods of time.
When road and weather conditions are appropriate, ...
Brakes
Disc brake pads have built-in wear indicators that make a high-pitched warning
sound when the brake pads are worn and new pads are needed.
The sound can come and go or be heard all the time when the vehicle is moving,
except when applying the brake pedal firmly.
Warning
The brake wear warning ...
Radio without Touchscreen
/VOL (Power/Volume)
Press to turn the system on and off.
Turn to adjust the volume.
Preset Buttons 1-6
Press and hold to store a station.
Press to go to a preset favorite station.
MENU/TUNE
Press to open menus and select menu items.
Turn to highlight menu i ...