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:
Driving on Wet Roads
Rain and wet roads can reduce vehicle traction and affect your ability to stop and accelerate.
Always drive slower in these types of driving conditions and avoid driving through large puddles and dee ...
Fuel Additives
To provide cleaner air, all gasolines in the United States are now required to
contain additives that help prevent engine and fuel system deposits from forming,
allowing the emission control syste ...
Exterior
Painted black and trimmed in chrome, my Yukon Denali test vehicle looked more
like its Escalade corporate cousin than a tough truck. The Yukon is probably the
safest-looking of the three siblings, ...





