Malfunction Indicator Lamp: Service and Repair

SERVICE VEHICLE SOON INDICATOR
If this light is on, it indicates a problem in one of the electronically monitored systems (a non-emissions related powertrain malfunction). This light does NOT come on at certain mileage intervals.
There is probably a Engine Control Module (ECM) or a Body Control Module (BCM) Code set that will aid you in diagnosis.

RESET PROCEDURE
The only way to get the light to go off is to clear the ECM or BCM code(s).
This light can NOT be reset or shut off any other way.
ECM/BCM codes should be read & repaired before clearing them.