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 InformationMalfunction Indicator Lamp
A computer system called OBD II (On-Board Diagnostics-Second Generation) monitors
the operation of the vehicle to ensure emissions are at acceptable levels, helping
to maintain a clean environment. The malfunction indicator lamp comes on when the
vehicle is placed in ON/RUN, as a check to show ...
Antilock Brake System (ABS) Warning Light
This light comes on briefly when
the engine is started.
If the light stays on, turn the ignition to LOCK/OFF or if the light comes on,
stop as soon as possible and turn the ignition off. Then start the engine again
to reset the system.
If the light still stays on, or comes on again while dr ...
Rear Seats
Folding the Seatback
Either side of the seatback can be folded down for more cargo space.
Fold a seatback only when the vehicle is not moving.
Caution
Folding a rear seat with the safety belts still fastened may cause
damage to the seat or the safety belts. Always unbuckle the safety belts and ...