OnStar Services

See also:

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 m ...

Powertrain
The DTS is equipped with the technologically advanced Northstar 4.6L V-8 engine and mated to the Hydra-Matic 4T80-E four-speed automatic transmission - a proven combination that assures powerful, ...

Reclining Seatbacks (Bucket Seats Only)
On vehicles with second row bucket seats, the seatbacks can be reclined. To recline the seatback: 1. Lift the lever on the outboard side of the seat. 2. Move the seatback to the desired position, ...