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:
Manual Fold and Tumble Feature
Folding and Tumbling the Seat
To fold and tumble the seat:
1. Make sure that there is nothing under, in front of, or on the seat.
Notice: Folding a rear seat with the safety belts still fastened ma ...
LED Lighting
This vehicle has several LED lamps.
For replacement of any LED lighting
assembly, contact your dealer. ...
ELECTRONIC KEY ALREADY
KNOWN
If the vehicle has the keyless
access system, this message
displays if you try to match a
transmitter that has already been
learned. See the keyless access
information for Remote Keyless
E ...