OnStar

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Exterior
Designed with a chiseled look, the four-door STS features what Cadillac says is a "faster profile" with "more rake" than the CTS. All told, it's considered "more sophistic ...

SERVICE KEYLESS START SYSTEM
If the vehicle has the keyless access system, this message displays when there is a problem with this feature. See your dealer. ...

Tire Sealant and Compressor Kit
This vehicle may come with a spare tire and tire changing equipment or a tire sealant and compressor kit. The kit can be used to temporarily seal small punctures in the tread area of the tire. ...