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:
Why Safety Belts Work
When riding in a vehicle, you travel as fast as the vehicle does. If the vehicle stops suddenly, you keep going until something stops you.
It could be the windshield, the instrument panel, or the s ...
Air Conditioning
A/C (Air Conditioning): Press to turn the air conditioning on or off. If the
fan is turned off or the outside temperature falls below freezing, the air conditioning
will not work. When in AUTO, th ...
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. ...