“Oil Change” with a flexible setting *1 is available. Consult your Authorized Mazda Dealer when you want to change the setting *2 . Once the system turns on, the wrench indicator light in the instrument cluster will be illuminated when remaining oil life becomes less than 500 km (300 mile), or remaining days are less than 15 (whichever comes first).
Reset method
Press and hold the selector with the ignition switched off, then switch it on. Keep pressing the selector for more than 5 seconds. The master warning light will flash for a few seconds when the reset is completed.

*1 The flexible setting is available in the United States and Puerto Rico. Based on the engine operating conditions, the onboard computer in your vehicle calculates the remaining oil life. Mazda Genuine 0W-20 oil and Castrol ® 0W-20 oil are required to achieve optimum calculation performance.
*2 Once the Flexible Oil Maintenance Setting is selected, the system must be reset whenever replacing the engine oil.
Maintenance Monitor (Type B audio)Quick Release Connector Removal/Installation [Mzr 2.0, Mzr 2.5]
WARNING:
Fuel is very flammable liquid. If fuel spills or leaks from the pressurized
fuel system, it will cause serious injury or death and facility breakage. Fuel
can also irritate skin and eyes. To prevent this, always complete the “Fuel
Line Safety Procedure”, while referring to ...
Crankshaft Position (CKP) Sensor Inspection [Mzr 2.0, Mzr 2.5]
Visual Inspection
CAUTION:
When foreign material such as an iron chip is on the CKP sensor, it can cause
abnormal output from the sensor because of flux turbulence and adversely affect
the engine control. Be sure there is no foreign material on the CKP sensor when
replacing.
...
Relay Inspection [Mzr 2.0, Mzr 2.5, Mzr 2.3 Disi Turbo]
Relay Type
Connector type
Part name
Type A
Front fog light relay
Headlight relay (HI)
Headlight relay (LO)
Horn relay
TNS relay
A/C relay
AT ma ...