See also:

Express-down Windows
Vehicles with the express-down feature allow the driver and front passenger windows to be lowered without holding the switch. Push the switch down to the second detent, then release, to activate the e ...

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. ...

Setting the Clock
To set the time and date: 1. Turn the ignition key to ACC/ ACCESSORY or ON/RUN, then press , to turn the radio on. 2. Press to display HR, MIN, MM, DD, and YYYY (hour, minute, month, day, and yea ...