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 InformationTire Pressure Monitor System
The Tire Pressure Monitor System (TPMS) uses radio and sensor technology to check
tire pressure levels. The TPMS sensors monitor the air pressure in your tires and
transmit tire pressure readings to a receiver located in the vehicle.
Each tire, including the spare (if provided), should be check ...
Seat Adjustment
Manual Seats
To adjust the seat:
Lift the bar under the front edge of the seat cushion to unlock the seat.
Slide the seat to the desired position and release the bar.
Try to move the seat back and forth to be sure it is locked in place.
See Seat Adjustment on page 3-5.
Seat Height A ...
Seat Adjustment
Manual Seats
Warning
You can lose control of the vehicle if you try to adjust a driver
seat while the vehicle is moving.
Adjust the driver seat only when the vehicle is not moving.
To adjust the seat:
Lift the bar under the front edge of the seat cushion to unlock the seat.
Slide the ...