2025-2026 Volvo EX40 SUV Entry and security -> Replacing the standard key's battery User Manual
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Entry and security -> Replacing the standard key's battery for Your Volvo EX40 SUV First Generation (2025-2026)

The key tag lets you use the keyless locking and unlocking feature. It's smaller and lighter than the standard key which makes it  
particularly useful when you have limited space for carrying items.  
If you leave the key tag in the car and lock the car with your standard key, the tag will be disabled until the car is unlocked again.  
Key tag battery  
The battery in the key tag isn't rechargeable and can't be replaced.  
Note  
A discharged key tag could still be used to start the car via back-up start. For this reason, hand in any discharged key tag  
to an authorised Volvo workshop so that it can be deleted from the car's system.  
Warning  
The key tag includes a non-replaceable battery which can be extremely hazardous. Keep batteries out of reach of children.  
If you suspect a battery has been ingested or in any way inserted into the body, seek immediate medical attention.  
Battery fluid is also hazardous and physical contact with it should be avoided.  
6.1.4. Replacing the standard key's battery  
You can replace the battery in your standard key when it goes flat.  
Your car will let you know when the battery in your standard key is running low via a message in the driver display. Another sign  
that the battery level is low is if you notice a decreased range when locking or unlocking the car.  
You can replace the battery yourself. The key requires a flat 3 V CR2032 disc battery.  
Important  
For safety reasons and to ensure optimal battery performance, use hand protection such as a medical glove when  
handling a new battery.  
Used batteries must be recycled in an environmentally sound manner.  
Hold the key with the Volvo logo facing upwards.  
Detaching the front shell  
The content of this manual represents the status of the user manual at the time of printing and may not be completely valid in future  
instances. For more information, refer to the first page for the complete disclaimer note.  
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1. Slide the small catch on the keyring bracket to the side, then slide the front shell away from the bracket.  
>
The front shell detaches.  
2. Lift the front shell off and locate the other small catch underneath it.  
Detaching the rear shell  
3. Use the small catch to slide the rear shell away from the bracket.  
>
The rear shell detaches.  
4. Lift the rear shell off to find the battery cover.  
Removing the battery cover  
5.  
Using a suitable tool, such as a screwdriver or a coin, turn the battery cover anticlockwise to release it.  
Replacing the battery  
6. Loosen the battery by pressing on its edge and lift it out.  
The content of this manual represents the status of the user manual at the time of printing and may not be completely valid in future  
instances. For more information, refer to the first page for the complete disclaimer note.  
153 / 444  
7. Place the new battery in the slot, making sure the positive side of the battery is facing upwards. Position the edge of the  
battery under the two outer plastic catches, then press down on the battery so that it is held in place by the upper plastic  
catch.  
8. Refit the battery cover, rear shell and front shell on the key.  
Warning  
Check that the battery is fitted correctly with the correct polarity. If the key will not be used for a long time, remove the  
battery to avoid battery leakage and damage. Batteries with damage or leaks may cause corrosive injury on contact with  
the skin. Therefore, use protective gloves when handling old or damaged batteries.  
Keep batteries out of the reach of children.  
Do not leave batteries lying around as they can be swallowed by children or pets.  
Batteries must not: be dismantled, short-circuited or thrown into open flames.  
Do not try to charge non-rechargeable batteries. They may explode.  
Check battery-operated products for signs of damage on a regular basis. The key should not be used if anything  
indicates that it or its battery has been damaged or has started to leak.  
Keep defective products out of the reach of children.  
6.2. Opening and closing  
Your car has a few features and situation-specific behaviours you should be aware of when opening and  
closing the doors.  
Opening the doors  
You open the doors manually, but you can set how the doors open and under which conditions via the centre display.  
Opening the bonnet  
The bonnet is opened by using a lever near the driver's seat.  
Opening the boot  
You open the boot manually using the button on the boot hatch or by using the button on your standard key.  
Your car also has a hands-free feature that lets you access the boot using foot movement.  
Open door warning  
Regularly check that the bonnet, boot hatch and doors are fully closed.  
Open doors and hatches are highlighted in the driver display. If you see an open door warning, stop the car in a safe place as  
soon as possible and make sure the relevant door or hatch is properly closed.  
The content of this manual represents the status of the user manual at the time of printing and may not be completely valid in future  
instances. For more information, refer to the first page for the complete disclaimer note.  
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Related Topics

Entry and security
Keys Standard key Care Key Key tag Opening and closing Opening the bonnet Closing the bonnet Boot access Locking and unlocking Keyless locking and unlocking Locking and unlocking using the key buttons Locking and unlocking using the detachable key blade Locking and unlocking from inside the car Activating child lock Settings for locking and unlocking Anti-theft Alarm

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