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:
Engine Cooling When Trailer Towing
The cooling system may temporarily overheat during severe operating conditions. See Engine Overheating on page 10‑18. ...
Ultrasonic Parking Assist
If available, Ultrasonic Rear Parking Assist (URPA) system uses sensors on the
rear bumper to assist with parking and avoiding objects while in R (Reverse). It
operates at speeds less than 8 km/h ...
Root Directory
The root directory of the disc is treated as a folder. If the root directory has compressed audio files, the directory displays on the radio as the CD label.
If a disc contains both uncompressed CD a ...