OnStar

See also:

Power Lumbar
To adjust the lumbar support, if equipped: - Press and hold the top of the control (B) to increase support to the top of the seatback and decrease support to the bottom of the seatback. - ...

Other Information
The Bluetooth® word mark and logos are owned by the Bluetooth® SIG, Inc. and any use of such marks by General Motors is under license. Other trademarks and trade names are those of their respectiv ...

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 ...