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Mazda 2 key battery

Every Mazda 2 remote key we cover, 2003–2022, takes one CR2025.

DJ

2015–2022
How to change a flip remote battery
  1. Fold the blade in. On many flip keys the remote section unclips from the blade section, so look for a small slot along the seam.
  2. Wrap the tip of a small flat screwdriver in tape or a cloth, put it in the slot and twist gently to part the case. Keep it off the circuit board and contacts.
  3. Note which way up the old cell sits before you lift it out. It varies by key, so don't assume + is up.
  4. Fit a new CR2025 the same way up, holding it by the edges. Leave any grease on the contacts.
  5. Clip the case back together and test the buttons at the car. Most keys work straight away with no reprogramming.
  6. Keep new and old cells away from children. A swallowed button battery can cause serious injury within two hours.
How to change a smart key battery
  1. Slide the release catch and pull out the emergency key blade.
  2. Wrap the tip of a small flat screwdriver in tape or a cloth, put it in the slot the blade leaves and twist gently to part the case. Keep it off the circuit board and contacts.
  3. Note which way up the old cell sits before you lift it out. It varies by key, so don't assume + is up.
  4. Fit a new CR2025 the same way up, holding it by the edges. Leave any grease on the contacts.
  5. Clip the case back together and test the buttons at the car. Most keys work straight away with no reprogramming.
  6. Keep new and old cells away from children. A swallowed button battery can cause serious injury within two hours.
Full 2 DJ key record

DE

2007–2014
  • TransponderNo battery

    A key with no buttons has no battery. It starts the car using a chip that needs no power.

  • Flip remoteCR2025
How to change a flip remote battery
  1. Fold the blade in. On many flip keys the remote section unclips from the blade section, so look for a small slot along the seam.
  2. Wrap the tip of a small flat screwdriver in tape or a cloth, put it in the slot and twist gently to part the case. Keep it off the circuit board and contacts.
  3. Note which way up the old cell sits before you lift it out. It varies by key, so don't assume + is up.
  4. Fit a new CR2025 the same way up, holding it by the edges. Leave any grease on the contacts.
  5. Clip the case back together and test the buttons at the car. Most keys work straight away with no reprogramming.
  6. Keep new and old cells away from children. A swallowed button battery can cause serious injury within two hours.
Full 2 DE key record

DY

2003–2007
  • TransponderNo battery

    A key with no buttons has no battery. It starts the car using a chip that needs no power.

  • Fixed remoteCR2025
Full 2 DY key record

For locksmiths · DJ

  • KeysFlip remote · Smart key
  • Tools confirmed7
  • Transponder chipSubscribers
  • Programming procedureSubscribers
Subscribe for the full recordFull 2 DJ key record

Questions

Mazda 2 key battery questions

DJ (2015–2022): CR2025 in the flip remote and smart key. DE (2007–2014): CR2025 in the flip remote. DY (2003–2007): CR2025 in the fixed remote.

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