Need to unlock your Mazda 3 with a dead key fob battery or dead battery? Learn the step-by-step procedure of manually unlocking the vehicle with a dead battery on a 2013-2018 Mazda 3 3rd Gen by following the procedures below.


  1. Unlock the tab behind the key fob and pull the metal key out.Removing the metal key on the key fob.
    Removing the metal key on the key fob.

  2. Insert the key into the door lock beside the door handle.Inserting the key into the door lock.
  3. Twist the key clockwise to unlock the vehicle.Unlocking the door using the key on the key fob.
  4. Open the hood and jump-start the engine if the battery is dead. If the vehicle is equipped with a keyless engine start, press the start button with the keyfob as the vehicle may not recognize the key. Opening the hood of the Mazda 3.
    Jump starting the battery of the Mazda 3.

We hope you find the Mazda 3 Unlock Door Manually – Dead Battery guide helpful. Check these troubleshooting and repair guides for more help on your Mazda 3.

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