2021 Mazda CX-3 AWDFACTORY OEM SERVICE PROCEDURE

Engine oil data reset procedure

ENGINE OIL DATA RESET DIAGNOSTIC PROCEDURE

STEP INSPECTION RESULTS ACTION Note
1
  • Using the M-MDS, verify the engine oil maintenance monitor function ON/OFF condition.
  • Is the engine oil maintenance monitor function on?
 Yes Go to the next step. If the engine oil maintenance monitor function is on, it is necessary to perform the engine oil data reset.
No The engine oil data reset is unnecessary.
2
  • Switch the ignition ON (engine off) and switch the display using the tripmeter switch to display the odometer.
    CAUTION:
    • The tripmeter and average fuel economy are reset when the following procedures are performed with tripmeter A or B displayed.
  • Switch the ignition OFF (LOCK).
  • Press and hold the tripmeter switch with the ignition switched off, then switch the ignition ON (engine off).
    • Keep pressing the tripmeter switch for more than 5 s.
  • Does the master warning light flash for a few seconds?
 Yes Engine oil data reset is completed. The master warning light flashes for a few seconds when the engine oil data reset procedure is completed.
No Perform Step 2 again.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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