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:
Services Specific to Canadian-Purchased Vehicles
• Fuel Delivery: Reimbursement is approximately $5 Canadian.
Diesel fuel delivery may be restricted. Propane and other fuels are not provided through this service.
• Lock-Out Service: Vehicle re ...
Inserting a CD(s) (Six-Disc CD Player)
LOAD : Press to load CDs into the CD player. This CD player holds up to six CDs.
To insert one CD:
1. Press and release the LOAD button.
2. Wait for the message to insert the disc.
3. Load a CD. I ...
Sunroof
The ignition must be in ON/RUN or ACC/ACCESSORY to operate the sunroof and power sunshade.
See Retained Accessory Power (RAP) on page 9‑20.
The vehicle may have a sunroof over the front seats ...