Mazda 2016 CX3 Owner's Manual page 421

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
3. After the master warning light
completed.
Selector
fl ashes for several seconds, the initialization is
I n f o r ma t i o n P r o v i d e d b y :
Maintenance and Care
Owner Maintenance
fl ashes.
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