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:

    If a Tire Goes Flat
    It is unusual for a tire to blow out while driving, especially if the tires are maintained properly. See Tires on page 10‑37. If air goes out of a tire, it is much more likely to leak out slowly ...

    Engine Compartment Overview
    A. Radiator Pressure Cap. See Cooling System on page 10‑14. B. Engine Coolant Recovery Cap. See Cooling System on page 10‑14. C. Remote Negative (−) Terminal. See Jump Starting o ...

    Compass Zone Setting
    This display allows for setting the compass zone. See Compass on page 5‑6 for more information. ...