Keysolved

Lexus NX key battery

Every Lexus NX remote key we cover, 2015–2024, takes one CR2032.

AZ20

2022–2024
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.
Full NX AZ20 key record

AZ10 (1st Gen)

2015–2021
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 NX AZ10 key record

For locksmiths · AZ20

  • KeysSmart key
  • Tools confirmed7
  • Transponder chipSubscribers
  • Programming procedureSubscribers
Subscribe for the full recordFull NX AZ20 key record

Questions

Lexus NX key battery questions

AZ20 (2022–2024): CR2032 in the smart key. AZ10 (2015–2021): CR2032 in the smart key.