New for 2011
The Sierra Hybrid gets GM's OnStar 9.0 telematics system that GM says provides better voice recognition. GM also said they have worked to cut down on the amount of wind noise occupants hear.
See also:
Safety
Standard safety features include:
Side-impact airbags for the front seats and side curtain airbags for both
rows
Four-wheel-disc antilock brakes
Traction control
Electronic stability system ...
Brake Fluid
The brake master cylinder reservoir is filled with DOT 3 brake fluid as indicated
on the reservoir cap. See Engine Compartment Overview on page 10‑6 for the location
of the reservoir.
The ...
Cellular and GPS Antennas
Avoid placing items over or near the antenna to prevent blocking cellular and
GPS signal reception. Cellular reception is required for OnStar to send remote signals
to the vehicle. ...