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:
Reclining Seatbacks
WARNING
Sitting in a reclined position when the vehicle is in motion can be dangerous. Even when buckled up, the safety belts cannot do their job when reclined like this.
The safety belt cannot prop ...
Safety Locks
The vehicle has rear door security locks to prevent passengers from opening the rear doors from the inside.
Open the rear doors to access the security locks on the inside edge of each door.
To set ...
Reading Lamps
Press the button near each lamp to turn them on or off. ...