Mazda 3 manuals

Mazda 3 Owners Manual: Vehicle Engine Control Unit Reset Procedure

Mazda 3 Owners Manual / Maintenance and Care / Owner Maintenance / Engine Oil / Vehicle Engine Control Unit Reset Procedure

NOTE This procedure is intended for vehicles with the engine oil flexible 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 flashes.

Mazda 3. Vehicle Engine Control Unit Reset Procedure


  1. After the master warning light flashes for several seconds,
    the initialization is completed.
Recommended Oil
U.S.A., Canada, and Puerto Rico Use SAE 0W-20 engine oil. Mazda Genuine Oil is used in your Mazda vehicle. Mazda Genuine 0W-20 Oil is required to achieve optimum fuel economy. For maintenanc ...

Inspecting Engine Oil Level
Be sure the vehicle is on a level surface. Warm up the engine to normal operating temperature. Turn it off and wait at least 5 minutes for the oil to return to the oil pan. Pull out the ...

Other materials:

Operating the Compact Disc (CD) Player
Type Playable data Music/MP3/WMA/ AAC CD player Music data (CD-DA) MP3/WMA/AAC file NOTE If a disc has both music data (CD-DA) and MP3/WMA/AAC files, playback of the two or three file types differs depending on how the disc was reco ...

Battery Recharging [Mzr 2.0, Mzr 2.5]
Using GR8-1291: (See GR8-1291 INSTANT TRAINING MODULE (VIDEO) .) WARNING: Keep all flames away from the battery, otherwise evaporated gas from the battery fluid may catch fire and cause serious injury. 1. Remove the battery filler caps and check the water level. If necessary, add ...

Tire Rotation
WARNING Rotate tires periodically: Irregular tire wear is dangerous. To equalize tread wear for maintaining good performance in handling and braking, rotate the tires every 12,000 km (7,500 miles). However Mazda recommends to rotate every 8,000 km (5,000 miles) to help ...

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