Lumbar Adjustment
Power Lumbar
If available, press and hold the front or rear of the control to increase or decrease lumbar support. Release the control when the seatback reaches the desired level of lumbar support.
See also:
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 v ...
Heated and Ventilated Seats
Heated and Ventilated Seat Buttons Shown, Heated Seat Buttons Similar
If available, the buttons are on the
climate control panel. To operate,
the ignition must be on.
: Press to heat the seat ...
Owner Checks and Services
At Each Fuel Stop
- Check the engine oil level.
See Engine Oil.
Once a Month
- Check the tire inflation
pressures. See Tire Pressure.
- Inspect the tires for wear.
See Tire Inspection.
- Chec ...