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:
When the System Does Not Seem To Work Properly
The RVC system might not work properly or display a clear image if:
• The RVC is turned off. See “Turning the RVC System On or Off” earlier in this section.
• It is dark.
• The sun or the ...
Replacing the Engine Air Cleaner/ Filter
1. Locate the air cleaner/filter assembly. See Engine Compartment Overview on page 10‑6.
2. Loosen the four screws on the cover of the housing and lift up the cover.
3. Remove the engine a ...
Tire Pressure Light
For vehicles with the Tire Pressure Monitor System (TPMS), this light comes on briefly when the engine is started. It provides information about tire pressures and the TPMS. ...