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 mobile app. See www.onstar.com for coverage maps.

See also:

Rear Seats
Split Folding Seatbacks With this feature, either side of the rear seatback can be folded down for more cargo space. Folding the Seatbacks Notice: Folding a rear seat with the safety belts s ...

Powertrain
The XLR's Northstar V-8 VVT is a 90-degree, DOHC, four-valves-per-cylinder engine featuring an aluminum block and cylinder heads, and a valvetrain configuration with roller finger followers. The e ...

Lumbar Adjustment
Power Lumbar If available, press and hold the front or rear of the control to increase or decrease lumbar support. Release the control when the seatback reaches the desired level of lumbar su ...