2004 Hummer H2
To reset the 2004 Hummer H2 Engine Oil Life, please follow these instructions:
1. Turn the ignition to run (one position before starting engine).
2. Press the fuel information button (located on instrument panel cluster above steering column) until ENGINE OIL LIFE appears in the display.
3. Press and hold the select button (arrow button) for 5 seconds while ENGINE OIL LIFE is displayed. OIL LIFE RESET will appear on the display for 10 seconds to let you know the system is reset.
4. Turn the ignition off and then start the engine to verify the indicator has been reset.
2004 Hummer H2 Driver Information Center (DIC)