See also:

Compass Calibration Procedure
1. Before calibrating the compass, make sure the compass zone is set to the variance zone in which the vehicle is located. See “Compass Variance (Zone) Procedure” earlier in this section. Do not ...

TTY Users
OnStar has the ability to communicate to the deaf, hard-of-hearing, or speech-impaired customers while in the vehicle. The available dealer-installed TTY system can provide in-vehicle access to all of ...

CD Messages
Check Disc: Radios with a single CD player display Check Disc and/or eject the CD if an error occurs. Optical Error: The disc was inserted upside down. Disk Read Error: A disc was inserted with an i ...