Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 Mazda CX-3 AWDFACTORY OEM SERVICE PROCEDURE
Engine Oil Data Reset: Notes
NOTE:
- If the engine oil was replaced with the engine oil maintenance monitor function ON, perform the engine oil data reset to reset the engine oil replacement period calculation data recorded in the PCM regardless of whether or not the wrench indicator light is illuminated.
- The ON/OFF condition of the engine oil maintenance monitor function can be verified using the M-MDS. (See MAINTENANCE MONITOR OPERATION PROCEDURE .)
Factory Service Tools
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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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