Change Engine Oil

The CHANGE ENGINE OIL message is sent to the cluster as a class 2 serial data message from the VCM/PCM. This message is designed to come when it is time to change the engine oil and filter usually between 3,000 to 7,500 miles and/or three months to twelve months whichever comes first. Under severe conditions, the indicator may come on sooner than 3,000 miles or three months. To reset the CHANGE ENGINE OIL message, turn the ignition switch to the RUN position with the engine off. Fully press and release the accelerator pedal three times within five seconds. The CHANGE ENGINE OIL message will flash for five seconds to notify the driver the system has been reset. Exactly when the indicator comes ON is based on a complex formula that takes into account some of the following vehicle inputs:
^ Coolant Temperature
^ Engine Speed
^ Vehicle Speed
^ Oil Temperature Estimated
^ Power up Manifold Temperature
^ Power up Coolant Temperature
^ Engine running
^ Actual Engine Torque
^ Vehicle Speed
^ Odometer