Warning: Refer to Assistant Driving Warning in the Preface section.
Interior windnoise is not heard when the window is lowered. Interior windnoise is caused by the air leaving the inside of the vehicle through a seal or a seam.
Special Tools and Equipment

Exterior WindnoiseSteering Knuckle Replacement
Preliminary Procedure
Raise and support the vehicle. Refer to Lifting and Jacking the
Vehicle
Remove the wheel bearing and hub assembly. Refer to Front Wheel Bearing
and Hub Replacement.
Separate the outer tie rod end from the knuckle. Refer to Steering
Linkage Outer Tie R ...
StabiliTrak® System
The vehicle has a vehicle stability enhancement system called StabiliTrak. It
is an advanced computer controlled system that assists with directional control
of the vehicle in difficult driving conditions.
StabiliTrak activates when the computer senses a difference between the intended
path, ...
Connections
OnStar Hands-Free Calling allows calls to be made and received from the vehicle.
The vehicle can also be controlled from a cell phone through the OnStar RemoteLink
mobile app.
For coverage maps, see www.onstar.com (U.S.), www.onstar.ca (Canada).
Hands-Free Calling
1. Press . System responds: ...