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:

    Securing Child Restraints (Front Passenger Seat)
    This vehicle has airbags. A rear seat is a safer place to secure a forward-facing child restraint. See Where to Put the Restraint on page 3‑41. In addition, the vehicle has a passenger sensin ...

    Lockout Protection
    If the driver side power door lock switch is pressed when the driver door is open and the key is in the ignition, all of the doors will lock and then the driver door will unlock. If the passenger sid ...

    Resetting the Power Folding Mirrors
    Reset the power folding mirrors if: • The mirrors are accidentally obstructed while folding. • They are accidentally manually folded/unfolded. • The mirrors vibrate at normal driving speeds. ...