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:
Dinghy Towing
Two-Wheel-Drive Vehicles
Notice: If the vehicle is towed with all four wheels on the ground, the drivetrain components could be damaged.
The repairs would not be covered by the vehicle warranty. D ...
Home Page
The infotainment system displays a home page that makes accessing many of the
features an easy process.
Back: If on page two of the Home Page, press Back to return to page one of the
Home Page. I ...
Steering Wheel Adjustment
To adjust the steering wheel:
1. Pull the lever (A) down.
2. Move the steering wheel up or down.
3. Pull or push the steering wheel closer or away from you.
4. Push the lever (A) up to lock the ...