GMC Yukon key battery
5th Gen (T1XX)
2021–2024- Smart keyCR2450
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 CR2450 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.
K2XX
2015–2020How 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.
GMT900 (3rd gen)
2007–2014- TransponderNo battery
A key with no buttons has no battery. It starts the car using a chip that needs no power.
For locksmiths · 5th Gen
- KeysSmart key
- Tools confirmed4
- Transponder chipSubscribers
- Programming procedureSubscribers
Questions
GMC Yukon key battery questions
5th Gen (2021–2024): CR2450 in the smart key. K2XX (2015–2020): CR2032 in the smart key and transponder.