See also:

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 ...

Vehicle Overview
The 2011 GMC Yukon is the middle child among GM's full-size SUVs. Based on price and equipment, the Yukon sits squarely between the Chevrolet Tahoe and Cadillac Escalade. Four-wheel drive is avail ...

How to Detect a Tamper Condition
If is pressed and the horn sounds, an attempted break-in has occurred while the system was armed. If the alarm has been activated, the THEFT ATTEMPTED message will appear on the DIC. See Key and ...