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 InformationWindshield Wiper/Washer
The windshield wiper/washer lever is on the right side of the steering column.
Move the lever to one of the following positions: HI: Use for fast wipes.
LO: Use for slow wipes.
INT (Intermittent Wipes): Move the lever up to INT for intermittent wipes, then
turn the INT band up for more ...
Vehicle Messages
DIC messages display when the status of the vehicle has changed and action may
be needed to correct the condition. Multiple messages appear one after another.
All messages should be taken seriously.
Vehicle messages appear as code numbers. The owner manual indicator and service
vehicle soon li ...
Floor Mats
Warning
If a floor mat is the wrong size or is not properly installed,
it can interfere with the pedals.
Interference with the pedals can cause unintended acceleration and/or increased
stopping distance which can cause a crash and injury. Make sure the floor mat does
not interfere with the p ...