TrailBlazer 4WD L6-4.2L VIN S (2002)
Service 4WD/AWD Indicator Lamp: Service and Repair
Service AWD/4WD Indicator Lamp
Illumination of the Lamp indicates a problem with the drive system.
There will probably be a Transfer Case Code set to aid in diagnostics.
The only way to get the light to go off is to clear Transfer Case codes.
This light can NOT be shut off or reset any other way.
Transfer Case codes should be read and repaired before clearing them.
Refer to Transfer Case. See: Transmission and Drivetrain/Transfer Case/Testing and Inspection