Safety

GM is aggressive in promoting the benefits of OnStar 8.0. New-truck buyers get a one-year subscription to the Safe and Sound Plan, after which owners can subscribe annually. If an airbag deploys, OnStar contacts an adviser and can report crash data to emergency services. The Sierra offers roof-mounted side curtain airbags as standard equipment on all trim levels. Seat-mounted side-impact airbags are also standard. An electronic stability system is now standard on all Sierra models.

Available ultrasonic rear parking assist
Traction control
Four-wheel antilock brakes
Seat belt pretensioners activate in rear-end impacts

    See also:

    Connections
    OnStar Hands-Free Calling allows calls to be made and received from the vehicle. The vehicle can also be controlled from a cell phone through the OnStar mobile app. See www.onstar.com for coverage map ...

    Canceling a Remote Start
    To cancel a remote start: • Aim the RKE transmitter at the vehicle and press and hold until the parking lamps turn off. • Turn on the hazard warning flashers. • Turn the ignition on and t ...

    Three-Way Calling
    Three-way calling must be supported on the cell phone and enabled by the wireless service carrier. 1. While on a call, press . 2. Say “Three-way call.” 3. Use the dial or call command to dial th ...