A Toyota radio asks for its security code after the head unit loses its permanent live feed — a flat battery, a battery change, a jump start or the radio being unplugged. The code is held against the serial number of that head unit, not against the registration or VIN. The serial normally looks like FT1234567. Check the service book and handbook wallet — a code card was supplied with many Toyotas. Once you have the serial, enter it in the radio code finder on this page.
Radio codes belong to the head unit serial number, not the vehicle registration or VIN.
A flat battery, battery replacement or radio removal is what triggers the code prompt.
Toyota serial formats: Fujitsu Ten (e.g. FT1234567); Panasonic / Matsushita (e.g. PA1234567); Toyota part-number label (e.g. 86120-0D123).
Display messages: SEC / ANTI-THEFT = The security lock is active and the code is required. · ERR = Incorrect code entered. · 1 hr = Lockout countdown — leave the ignition on until it clears.
Bob's never displays a guessed or generated code — if a working code can't be retrieved you get a full refund.
Where to find the serial number, what the display messages mean and how to key the code back in on a Toyota.
A Toyota radio security code is a four-digit number held against the head unit serial. Toyota tends to use the word ANTI-THEFT or SEC on the display rather than CODE, but the principle is the same lock.
When you'll be asked for the code:
After a flat battery or a battery replacement on a coded unit
When the radio has been unplugged during dash or heater work
After fitting a second-hand head unit from another Toyota
On imported models where the anti-theft function was enabled by the previous owner
Serial number formats:
Fujitsu Ten — for example FT1234567. Yaris, Auris, Corolla — label on the top of the casing.
Panasonic / Matsushita — for example PA1234567. Aygo, Hilux and Proace units.
Toyota part-number label — for example 86120-0D123. Sits beside the serial and helps identify the exact unit.
How to find the serial number:
Check the service book and handbook wallet — a code card was supplied with many Toyotas.
Toyota units rarely show the serial on screen, so plan on removing the unit.
Aygo and Yaris fascia trims unclip by hand; take the trim off rather than levering the radio.
Read both the serial and the 86120- part number from the casing label.
Photograph the label — Fujitsu Ten labels fade badly with heat.
What the display messages mean:
SEC / ANTI-THEFT — The security lock is active and the code is required.
ERR — Incorrect code entered.
1 hr — Lockout countdown — leave the ignition on until it clears.
How to key the code in:
Use the preset buttons 1 to 4 to set the digits, or the seek arrows on rotary units.
Some units want the code entered then the SEEK/TRACK button held to submit.
The display returns to normal radio operation once accepted.
Three failures is the usual limit before a timed wait.
Do all Toyotas have a radio code? No. Many Toyota units resume normally after a battery disconnection. The anti-theft function is only active on some models and on units where a previous owner enabled it.
My Toyota shows ANTI-THEFT instead of CODE Same thing. Toyota's wording differs, but the unit still needs its four-digit security code before it will play.
Where is the serial on a Yaris radio? On the label on the top of the casing, alongside an 86120- part number. It is not usually displayed on screen, so the unit has to come out.
Can the code be read from the VIN? Not reliably. The VIN reflects the factory unit only, and Toyota audio is frequently swapped on older cars.