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Maintenance and Care
Owner Maintenance
Vehicle Engine Control Unit Reset Procedure
NOTE
  This procedure is intended for vehicles with the engine oil fl exible maintenance setting 
selected.
  After replacing the engine oil, have a repair shop such as an Authorized Mazda Dealer 
perform the initialization (engine oil data resetting) of the recorded value. If the value 
recorded by the computer is not initialized, the wrench indicator light may not turn off or it 
may turn on earlier than normal.
NOTE
  The initialization (engine oil data resetting) of the recorded value can be performed using 
the following procedure:
   1.   Switch  the  ignition  OFF.
   2.   Switch the ignition ON with the selector pressed, and press and hold the selector for 
about 5 seconds until the master warning light
fl ashes.
Selector
3. After the master warning light
fl ashes for several seconds, the initialization is
completed.