See also:

Gasoline Specifications (U.S. and Canada Only)
At a minimum, gasoline should meet ASTM specification D 4814 in the United States or CAN/CGSB–3.5 or 3.511 in Canada. Some gasolines contain an octane-enhancing additive called methylcyclop ...

Vehicle and Power Issues
OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not o ...

Alpha-Numeric Keyboard
Letters of the alphabet, symbols, punctuation, and numbers, when available, displays on the navigation screen as an alpha or numeric keyboard. The alpha keyboard displays when the system requires ...