Vehicle Messages
Messages displayed on the DIC indicate the status of the vehicle or some action 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) or the trip odometer reset stem.
The messages that require immediate action cannot be cleared until that action is performed.
All messages should be taken seriously and clearing the message does not correct the problem.
The following are the possible messages and some information about them.
If the vehicle has a diesel engine, see the Duramax® diesel supplement for more information.
See also:
Footnotes — Maintenance Schedule Additional Required Services — Severe
a) Or every two years, whichever comes first.
b) Check all fuel and vapor lines and hoses for proper hook-up, routing, and condition. Check that the purge valve, if the vehicle has one, works properl ...
Radio Messages
Calibration Error: The audio system has been calibrated for the vehicle from the factory.
If Calibration Error displays, it means that the radio has not been configured properly for the vehicle and i ...
Roof Rack System
The roof rack cross rails can be locked in four positions along the roof rack
side rails. Lift the lever to release and move the cross rail. Push the lever down
to completely engage into the side ...