Power Lumbar
On vehicles equipped with either a two-way or four-way lumbar, the control is located on the outboard side of the seats.
For a detailed operation description see Power Lumbar .
See also:
OnStar®
If equipped, this vehicle has a comprehensive, in-vehicle system that can connect
to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic
Services. See OnStar Overview&nb ...
Delayed Door Lock
When on, this feature will delay the
locking of the doors until
five seconds after the last door is
closed. You will hear three chimes
to signal delayed locking is in use.
Pressing either the ...
Diagnostics
OnStar Vehicle Diagnostics will
perform a vehicle check every
month. It will check the engine,
transmission, antilock brakes, and
major vehicle systems. It also
checks the tire pressures, if ...