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:
Automatic Operation
The system automatically controls the fan speed, air delivery, air conditioning,
and recirculation in order to heat or cool the vehicle to the desired temperature.
When the AUTO indicator light is ...
Global Positioning
System (GPS)
• Obstruction of the GPS can
occur in a large city with tall
buildings; in parking garages;
around airports; in tunnels,
underpasses, or parking
garages; or in an area with very
dense tr ...
Leaving After Parking on a Hill
1. Apply and hold the brake pedal while you:
• start the engine,
• shift into a gear, and
• release the parking brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is cle ...