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:
Audio Output
Audio from the DVD player or auxiliary inputs can be heard through the following:
○ Wireless Headphones
○ Vehicle Speakers
The RSE system transmits the audio signal to the wireless head ...
Safety Belts
This section of the manual describes how to use safety belts properly. It also describes some things not to do with safety belts.
WARNING
Do not let anyone ride where a safety belt cannot be worn pr ...
Audio System
When using the in-vehicle Bluetooth system, sound comes through the vehicle's front audio system speakers and overrides the audio system. Use the audio system volume knob, during a call, to change the ...