Vehicle Messages
Messages displayed on the DIC indicate the status of the vehicle or some action that may be needed to correct a condition. Multiple messages may appear one after another.
The messages that do not require
immediate action can be
acknowledged and cleared by
pressing 
(Set/Reset).
The messages that require immediate action cannot be cleared until that action is performed.
All messages should be taken seriously; clearing the message does not correct the problem.
The following are the possible messages and some information about them.
See also:
OnStar Overview
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.
The OnStar system ...
Gasoline Specifications (U.S. and Canada Only)
At a minimum, gasoline should meet ASTM specification D 4814 in the United
States or CAN/CGSB—3.5 or 3.511 in Canada. Some gasolines contain an
octane-enhancing additive called methylcyclopentadieny ...
Seat Adjustment
Power Seats ...