Keysolved

Mk4 (GR)

2020–2024
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 CR2032 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 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 CR2032 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 Jazz Mk4 key record

GK (3rd gen)

2015–2020
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 CR2032 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 CR2032 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 Jazz GK key record

GE (2nd gen)

2008–2015
Full Jazz GE key record

GD (1st gen)

2001–2008
  • Remote head keyCR1616
  • TransponderNo battery

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

Full Jazz GD key record

For locksmiths · Mk4

  • KeysSmart key · Flip remote
  • Tools confirmed16
  • Transponder chipSubscribers
  • Programming procedureSubscribers
Subscribe for the full recordFull Jazz Mk4 key record

Questions

Honda Jazz key battery questions

Mk4 (2020–2024): CR2032 in the smart key and flip remote. GK (2015–2020): CR2032 in the flip remote and smart key. GE (2008–2015): CR1616 in the fixed remote and flip remote. GD (2001–2008): CR1616 in the remote head key.