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1990 - 1996 Corvette: Oil Life Monitor: Reset the Engine Oil Life Monitor

Overview:

The 1990 to 1996 Corvettes are equipped with an Engine Oil Life Monitor.  The Central Control Module (CCM) calculates the lifespan of the engine oil by measuring engine rpm, and oil temperature over time.  Regardless of whether or not the Change Oil indicator light illuminates, you should reset the Engine Oil Life Monitor after every oil change.
Procedure:

Click on picture for larger image. Click on picture for larger image.


  1. Turn the key to the "ON" position, but don't start the engine.
  2. Press the ENG MET button on the Trip Monitor and release it.  Then, within five seconds, press and release the ENG MET button again.
  3. Within five seconds, of Step 2, press and hold the RANGE (1990-1991) button or the GAUGES (1992-1996) button on the Trip Monitor.  The CHANGE OIL light will flash.
  4. Hold the RANGE or GAUGES button until the CHANGE OIL light stops flashing and goes out.  When the light goes out, the Engine Oil Life Monitor is reset.  This should take about ten seconds.  If it doesn't reset, turn the ignition "OFF" and repeat the procedure.
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