Acura MDX key battery
4th Gen (YE1)
2022–2025- Smart keyCR2032
How to change a smart key battery
- Slide the release catch and pull out the emergency key blade.
- 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.
- Note which way up the old cell sits before you lift it out. It varies by key, so don't assume + is up.
- Fit a new CR2032 the same way up, holding it by the edges. Leave any grease on the contacts.
- Clip the case back together and test the buttons at the car. Most keys work straight away with no reprogramming.
- Keep new and old cells away from children. A swallowed button battery can cause serious injury within two hours.
3rd Gen (YD3/YD4)
2014–2020- Smart keyCR2032
How to change a smart key battery
- Slide the release catch and pull out the emergency key blade.
- 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.
- Note which way up the old cell sits before you lift it out. It varies by key, so don't assume + is up.
- Fit a new CR2032 the same way up, holding it by the edges. Leave any grease on the contacts.
- Clip the case back together and test the buttons at the car. Most keys work straight away with no reprogramming.
- Keep new and old cells away from children. A swallowed button battery can cause serious injury within two hours.
2nd Gen (YD2)
2007–2013- Flip remoteCR1616
1st Gen (YD1)
2001–2006- TransponderCR2025
For locksmiths · 4th Gen
- KeysSmart key
- Tools confirmed4
- Transponder chipSubscribers
- Programming procedureSubscribers
Questions
Acura MDX key battery questions
4th Gen (2022–2025): CR2032 in the smart key. 3rd Gen (2014–2020): CR2032 in the smart key. 2nd Gen (2007–2013): CR1616 in the flip remote. 1st Gen (2001–2006): CR2025 in the transponder.