Home/GMC/Sierra 2500/GMC Sierra 2500 (2000-2004)/Repair manual/Testing & Diagnostics/Engine Controls Self-Diagnostics - 6.6L Diesel: Maintenance

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Wiring diagrams Section: Testing & Diagnostics

Engine Controls Self-Diagnostics - 4.3L

Engine Control System Self-Diagnostics - 4.8L, 5.3L & 6.0L

Engine Control System Self-Diagnostics - 8.1L "C", "G" & "K" Series Trucks

Engine Controls - Strategy Based Engine Diagnosis

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Engine Controls Self-Diagnostics - 6.6L Diesel: Maintenance GMC Sierra 2500

Testing & Diagnostics

ENGINE OIL LIFE RESET

Turn the ignition key to the RUN position.
Fully push and release the accelerator pedal 3 times within 5 seconds. If the CHANGE OIL SOON light flashes 2 times, the system is reset. However if the light comes on and stays on for 5 seconds, the system did not reset. Repeat the procedure if the system does not reset.