These instructions apply to the Land Rover Range Rover Mk4 (L405) 2013-2022. For other models, please choose your vehicle here.
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A Range Rover (2013–2022) smart key that has lost its range, needs holding to the door handle, or shows a low-battery message almost always just needs a fresh coin cell. It’s a quick swap. Here’s the job, and why a new key is a dealer matter.
Battery First
The Range Rover smart key uses a CR2032 coin cell. A weak cell is behind nearly every “key not working” complaint, so fit a fresh one first. If the key is dead you can still start the car by holding it against the start button, and the emergency blade inside it unlocks the driver’s door.
Replacing the Cell
- Remove the cover and pull out the mechanical (emergency) key.
- Separate the case halves.
- Remove the old cell and fit a new CR2032 with the positive side facing up.
- Reassemble and refit the mechanical key, then test lock/unlock.
Lost Key or Adding a Spare
A cell swap keeps the existing coding. A lost or broken key can only be ordered from a Land Rover dealer and coded through the immobiliser — there’s no owner sequence.
If a Fresh Cell Doesn’t Help
- Check the cell is positive-up and seated fully.
- Hold the key to the start button to drive in the meantime.
- Still flagging? A smart-entry fault can store a code — look it up on autodtcs.com.
Frequently Asked Questions
What battery does the Range Rover key use?
A CR2032 coin cell, fitted positive-side up.
Do I need to reprogram the key after the swap?
No — the coding is retained for a battery change.
Can I program a new Range Rover key myself?
No — a replacement must be coded by a Land Rover dealer.
The key is dead — how do I start the car?
Hold the key against the start button as you press it.
If the key flagged low after a battery disconnection, see our Range Rover battery disconnect/reconnect guide.
Disclaimer: The information on this page is provided for general guidance only. Always follow your official service manual and safety precautions when working on your vehicle. We are not responsible for errors, omissions, or any damage resulting from the use of this information.
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