Which Daihatsu models do you support?

We support Daihatsu radios that use the 16-character ERC system shared with Toyota. Commonly Sirion, Terios, Materia, Cuore and Copen with the Denso head unit. If your radio asks for a shorter 4-character code, that is the older system and is not covered by this instant lookup.

ERC is the anti-theft system Daihatsu shares with parent company Toyota. It is a 16-character hexadecimal code (0–9, A–F) unique to your radio and vehicle.

How do I find my Daihatsu ERC code?

Turn the ignition on without starting the engine. The display shows 'LOCKED', and your 16-character ERC appears beneath it (e.g. 1A2B3C4D5E6F7A8B). Write it down carefully, character for character.

Why does Daihatsu use the same system as Toyota?

Daihatsu is a subsidiary of Toyota, and shares the same Denso ERC anti-theft radio system. The format, the display behaviour, and the lookup process are identical. Our Toyota-verified lookup handles them directly.

Do I need to remove the radio?

No. The ERC code shows on the radio's locked display. There's no need to remove anything to read it.

Do you support aftermarket Daihatsu radios?

No. Our service covers OEM (factory-fitted) Daihatsu ERC radios only. Aftermarket units use different locking systems.

Daihatsu Radio Code

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Daihatsu serial number 16 characters, 0-9 and A-F

1Turn the ignition on without starting the engine
2The display shows "LOCKED" or a padlock icon
3The 16-character ERC appears just below it (e.g. 1A2B3C4D5E6F7A8B)
4Copy it down in full, letters and numbers included
5Watch for lookalike characters: 0 (zero) vs O, 1 (one) vs I

6 Type what you can see

You are looking for

Instant · no code, no charge

Daihatsu model coverage

Our lookup supports Daihatsu radios that display a 16-character ERC on the locked screen, the Denso system shared with Toyota. Commonly:

Sirion
Terios
Materia
Cuore
Copen

One thing to check: some older Daihatsus (e.g. early Sirion/Terios) ask for a shorter 4-character code instead. That is a different, older system and is not covered by this lookup. If yours shows 16 hexadecimal characters, you are in the right place. Driving a Toyota? See our Toyota radio code page, same ERC system.

Frequently asked questions

What's the difference between the ERC and the unlock code? +

ERC: The 16-character code on your locked radio's display. You give us this.

Unlock code: The 4-digit PIN you type into the radio to unlock it. We give you this after payment.

Give us the ERC, we work out the unlock code, you enter that into the radio to get sound back.

Can I get the code from a Daihatsu dealer instead? +

Yes, though it takes longer. Daihatsu/Toyota dealers can issue a code once you prove ownership with your V5C and photo ID. Typically:

several working days turnaround
An in-person visit is required
Some dealers charge a fee

Our £4.99 lookup is instant and available online 24/7.

Should I type the ERC or copy-paste it? +

Copy-paste if you can, it avoids transcription mistakes entirely. A single mistyped character will send back the wrong result.

If you're typing it manually, go slowly and double-check lookalike characters like 0/O and 1/I.

What if the unlock code doesn't work? +

We guarantee every code 100%. If it doesn't unlock your radio, contact us and we'll refund you in full, no questions asked.

Before trying it, just confirm you copied the ERC correctly from the display.

Do you keep my ERC on file? +

We only retain what's needed to process your order. We don't store your ERC or vehicle details longer than necessary, we never see your card details (Stripe handles payment), and we never sell or share your data.

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