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 the
vehicle is equipped with the Tire
Pressure Monitoring System. If a
diagnostics check is needed
between e-mails, push 
, and
an Advisor can run a check.
See also:
Courtesy Transportation Program (U.S. and Canada)
To enhance your ownership experience, we and our participating dealers are proud
to offer Courtesy Transportation, a customer support program for vehicles with the
Bumper-to-Bumper (Base Warranty ...
Lumbar Adjustment
To adjust the lumbar support:
Press and hold the front or rear of the control to increase or decrease
lumbar support.
Press and hold the top or bottom of the control to raise or lower the
...
Lamps On Reminder
This light comes on whenever the
parking lamps are on.
See Exterior Lamps Off Reminder for more information. ...