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 
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Advisor can run a check.
See also:
Windshield and Wiper Blades
Clean the outside of the windshield with glass cleaner.
Clean rubber blades using lint-free cloth or paper towel soaked with windshield
washer fluid or a mild detergent. Wash the windshield thoroug ...
Safety Belt Reminders
Driver Safety Belt Reminder Light
There is a driver safety belt reminder light on the instrument panel cluster.
When the vehicle is started, this light flashes and a chime may come on to remind
...
Digital Signal
Processing (DSP)
If the radio has this feature, it has
either a Bose® sound system or a
Bose® 5.1 Cabin Surround® sound
system. DSP is used to provide a
choice of different listening
experiences.
To choose ...