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:
Forward Collision Alert (FCA) System
For vehicles with FCA, this system is intended to help avoid or reduce the harm
caused by front-end crashes. FCA provides a flashing visual alert and beeps when
approaching a vehicle directly ahea ...
Owner Checks and Services
At Each Fuel Stop
• Check the engine oil level. See Engine Oil on page 10‑7.
Once a Month
• Check the tire inflation pressures. See Tire Pressure on page 10‑62.
• Inspect the tir ...
Doing Your Own Service Work
WARNING
It can be dangerous to work on your vehicle if you do not have the proper knowledge, service manual, tools, or parts. Always follow owner manual procedures and consult the service manual for ...





