Electrical System

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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. ...

Windshield Wiper/Washer
The front wiper control is located on the turn and lane-change lever. The windshield wipers are controlled by turning the band with on it. (Mist): For a single wipe, turn to , then release ...

StabiliTrak® System
The StabiliTrak system assists with directional control of the vehicle in difficult driving conditions. The system is on when the vehicle is started. ○ To turn off both Traction Control and S ...