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 InformationWhen It Is Time for New Tires
Factors such as maintenance, temperatures, driving speeds, vehicle loading, and
road conditions affect the wear rate of the tires.
Treadwear indicators are one way to tell when it is time for new tires.
Treadwear indicators appear when the tires have only 1.6mm (1/16 in) or less
of tread r ...
Pictures and Movies (Audio System)
The infotainment system can play the music files contained in the USB storage
device or iPod/iPhone products.
Audio System Information
Using MP3/WMA/OGG/WAV Files
Music files with .mp3, .wma, .ogg, and .wav file name extensions can be
played.
MP3 files that can be played are: Bit rate: ...
Seat Adjustment
Manual Seats
Warning
You can lose control of the vehicle if you try to adjust a driver
seat while the vehicle is moving.
Adjust the driver seat only when the vehicle is not moving.
To adjust the seat:
Lift the bar under the front edge of the seat cushion to unlock the seat.
Slide the ...