These instructions apply to the Skoda Kamiq Mk1 (NW4) 2019-Present.
For other models, please choose your vehicle here.
If the remote on your Škoda Kamiq (2019–present, VW-group MQB A0 platform) only locks the car from an arm’s length, flashes weakly, or has stopped responding altogether, the coin cell inside the fob is almost certainly flat. The Kamiq uses a single folding “flip” remote — the same switchblade-style key shared with the Škoda Scala and Fabia, the VW Polo and the SEAT Ibiza — and cars fitted with the optional KESSY keyless-entry system carry the very same key body, just with proximity locking and push-button start added. Whichever version you have, the battery, the way the case opens and the fix are identical. Here is exactly what to buy, how to open the key without cracking the housing, and why a genuinely new key is the one job you can’t finish on the driveway.
How to Tell the Fob Battery Is Dying
- Shrinking range. You have to stand right next to the Kamiq — or hold the key against the door handle — before it locks or unlocks. This fading range is the classic first warning.
- The button LED goes dim or dark. Press lock and watch the little indicator light on the fob: once it barely glows or fails to light at all, the cell is on its way out.
- A “key battery low” message. On KESSY-equipped cars the driver-information display shows a low key-battery warning when the fob is read with a weak cell — a clear prompt to change it.
- KESSY stops working before the buttons do. Keyless proximity locking and push-button start draw more power than a simple button press, so on keyless cars the “walk up and it unlocks” feature usually dies first while the buttons still just about work.
- Cold-morning dropouts. Intermittent response in cold weather is a near-flat cell struggling at low temperature.
A CR2032 in a Kamiq remote typically lasts two to four years. If yours is that age and showing any of the above, fit a fresh cell before you start suspecting the car’s receiver or immobiliser.
The Battery You Need
The Kamiq fob takes one CR2032 — a 3-volt lithium coin cell, 20 mm across and 3.2 mm thick. It is the most common key battery there is, sold in any supermarket, hardware shop or petrol station, and Škoda’s own service part (a 3.0 V micro battery) is simply this cell. Buy a good-quality branded one; cheap cells sag under the brief high current the transmitter draws and can give short range even when “new”. There is no difference in battery between a standard-remote Kamiq and a KESSY car — both use the single CR2032.
How to Open the Kamiq Flip Key and Change the Battery
- Release the emergency blade. Slide the small catch at the top of the fob and let the folding metal key blade spring out, or pull it out fully — the slot it leaves behind is your way into the case.
- Split the two halves. Insert a thin plastic pry tool (a guitar pick or an old bank card works well) into the seam where the blade sits and gently twist. The rear half of the housing unclips from the front. Avoid a metal screwdriver where you can — it scratches the case and can crack the plastic clips. There is no screw on this key; it is entirely clip-held.
- Note the orientation, then lift the cell out. Look carefully at which face of the CR2032 is showing before you disturb it. In this VAG flip key the cell normally sits with its positive (+) face upward, toward the cover you just removed, held by a small metal clip.
- Fit the new cell the same way round. Handle it only by the edges — finger grease on the flat faces harms the contact — and slide it under the clip with the + side facing the way the old one did.
- Clip the case shut and refit the blade. Press the two halves together until they snap all the way round, then push the metal blade back in until it latches. Test lock and unlock from a few paces.
⚠️ Match the orientation you found. Fitting the coin cell upside down is the single most common mistake — a reversed cell won’t power the transmitter and can slowly discharge against the clip. If you didn’t note which way the old one sat, remember the general rule for this key: positive (+) toward the removable cover.
Check It Worked
Stand back a few metres and lock, then unlock, the car; full range should return straight away and the LED should flash brightly again. On a KESSY Kamiq, walk-up unlocking should behave normally once more, and any “key battery low” message clears the next time the car reads a healthy fob — sometimes after one drive cycle rather than instantly.
If a Fresh Cell Doesn’t Fix It
- Re-check polarity and seating. Pop the case back open and confirm the + face is the right way up and the cell is fully home under its clip against clean contacts — this catches the great majority of “new battery, still dead” cases.
- Wipe the contacts. A smear of finger grease or light corrosion on the terminals is enough to cause dropouts; clean them with a dry cloth or a cotton bud.
- Try the mechanical blade and KESSY start. If the fob won’t unlock the car electronically, the hidden blade still opens the driver’s door, and a KESSY car will still start — see our guide to starting a Kamiq with a dead key fob.
- Warning still showing? On some cars the low-key alert only clears once the fob has been read a couple of times. Rarely, a weak car 12 V battery can mimic key faults — if the Kamiq itself is slow to wake, the vehicle battery is worth checking too.
New Key or Spare — Why It’s a Dealer Job
Swapping the coin cell keeps the fob’s existing coding, so nothing needs reprogramming and the key works the moment you close the case. Cutting and coding a new key is a different story: the Kamiq’s immobiliser has to be accessed with VAG diagnostic equipment, and a blank flip key must be ordered against the car’s VIN and then matched to the immobiliser before it will start the engine. That makes adding a spare or replacing a lost key a job for a Škoda dealer or an auto-locksmith with the right kit — so keep the battery in your spare key fresh too, and you’re never down to a single working key.
Frequently Asked Questions
What battery does a Škoda Kamiq key fob take?
One CR2032 3-volt lithium coin cell. The same cell fits every Kamiq key, standard remote or KESSY keyless, and it is the same battery used across the related Scala, Fabia, Polo and Ibiza flip keys.
Which way up does the battery go?
In this flip key the positive (+) face normally points upward, toward the cover you unclip. The safest habit is simply to copy the orientation of the cell you take out — fitting it the wrong way round leaves the key dead.
Do I need to reprogram the key after changing the battery?
No. A battery change doesn’t affect the fob’s coding or its pairing with the car, so the remote and KESSY work straight away. Only a brand-new key needs programming.
How do I open the Kamiq key without breaking it?
Slide out the emergency blade, then work a plastic pry tool into the blade slot and twist gently to unclip the two halves. It is a clip fit with no screw — go slowly and avoid metal tools that mark the case.
How long should a Kamiq key battery last?
Usually two to four years. KESSY keyless cars tend to be at the shorter end because the fob wakes and talks to the car more often, especially if it lives on a hook near the driveway.
Can I still drive the Kamiq if the fob is completely dead?
Yes. Use the mechanical blade inside the fob to unlock the driver’s door, and on a KESSY car hold the key against the marked spot on the steering column or in the cup holder and press start — the car reads the transponder even with a flat cell, so a dead battery won’t strand you.
If your Kamiq’s remote stopped working suddenly — right after the car battery was disconnected, say, rather than fading over weeks — the cause is more likely the pairing or a stored fault than the coin cell. You can look up what any logged code means on autodtcs.com.
Independent guide — not affiliated with Skoda. Always follow your official service manual and safety precautions. Read our full disclaimer.