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:
Operation
AM-FM Radio
Radio with CD (MP3) Shown; Radio with USB and CD (MP3), Radio with USB and
Six-Disc CD (MP3), and Radio with CD Similar
Radio with USB, CD, and DVD (MP3)
The vehicle has one of ...
Additional Maintenance and Care
Your vehicle is an important investment and caring for it properly may help to avoid future costly repairs. To maintain vehicle performance, additional maintenance services may be required. It is reco ...
Increasing Speed While Using Cruise Control
If the cruise control system is already activated:
• Press and hold the +RES button on the steering wheel until the desired speed is reached, then release it.
• To increase vehicle speed in smal ...





