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Bob, Auto Tech
Category: Chevy
Satisfied Customers: 4087
Experience:  Plus 40 years GM, over 30 certified with Chevrolet, ASE certified Master Tech. (Expired, Retired)
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i have a 2003 gmc envoy.How do i reset the oil life

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Submitted: 10 years ago.
Category: Chevy
Expert:  Bob replied 10 years ago.
Document ID# XXXXX
2003 GMC Truck Envoy

GM Oil Life System Resetting

When the system has calculated that oil life has been diminished, it will indicate that an oil change is necessary. A CHANGE ENGINE OIL message will come on. Change the engine oil as soon as possible within the next 600 miles (1000 km). It is possible that, if driving under the best conditions, the oil life may not indicate that an oil change is necessary for over a year. However, the engine oil and filter must be changed at least once a year and at this time the system must be reset.

If the system is ever reset accidentally, change the engine oil at 3000 miles (5000 km) since last oil change.

With the Driver Information Center (DIC)

  1. Press the fuel information button until ENGINE OIL LIFE appears in the display.
  2. To reset the monitor, press and hold the select button while ENGINE OIL LIFE is displayed.

Without the Driver Information Center (DIC)

To reset the CHANGE ENGINE OIL light, do the following:

  1. Turn the ignition key to RUN, with the engine off.
  2. Full press and release the accelerator pedal slowly 3 times within 5 seconds.
  3. If the CHANGE ENGINE OIL light flashes for five seconds, the system is reset. If the light does not flash. repeat the procedure.
  4. Turn the key to LOCK.

If the CHANGE ENGINE OIL light comes back on when you start the vehicle, the engine oil life system has not reset. Repeat the procedure.

Document ID# XXXXX
2003 GMC Truck Envoy