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 acces ...

Chassis refinements
Chassis tuning has focused on achieving a smooth, quiet, refined ride. The DTS features an all-new front cradle design, with the engine mounted to the cradle, and the cradle mounted to the body ra ...

Tires
Use a stiff brush with tire cleaner to clean the tires. Notice: Using petroleum-based tire dressing products on the vehicle may damage the paint finish and/or tires. When applying a tire dressing, ...