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:

    Windows
    Turn the hand crank on each door to manually raise or lower the manual windows. ...

    Vehicle Security
    This vehicle has theft-deterrent features; however, they do not make it impossible to steal. ...

    Immobilizer
    See Radio Frequency Statement on page 13.21 for information regarding Part 15 of the Federal Communications Commission (FCC) rules and Industry Canada Standards RSS-GEN/210/220/310. ...