Toyota Yaris Radio Code: Find Serial Number & Unlock It

Your Toyota Yaris radio code is a four-digit security PIN stored in the head unit's memory. Whenever the unit loses power — most often after a battery replacement, a disconnected terminal, or a blown fuse — it resets into a locked state and will not produce any sound until the correct code is entered. This guide explains which radios were fitted to each Yaris generation, how to locate the serial number on your specific unit, and how to enter the code correctly.

Why Your Yaris Radio Is Asking for a Code

Toyota's anti-theft system is designed to make the radio useless if it is removed from the vehicle or if it detects a power interruption. The locked state is triggered by:

• Replacing or disconnecting the 12 V battery
• A flat battery that fully discharged
• A blown fuse on the accessory or radio power circuit
• Removing the radio from the dashboard for any reason
• Extended periods off the vehicle during storage or restoration

Yaris Generations and Radio Fitments

The Toyota Yaris was produced across three main generations between 1999 and 2020. Early cars used conventional OEM CD and AM/FM head units supplied by Panasonic and Pioneer, while later Yaris II and III models received the Toyota Touch and Toyota Touch & Go touchscreen systems built by Pioneer and Fujitsu Ten. The table below sets out the standard fitment by generation.

Generation	Years	Radio unit(s)	Serial format
Yaris I (P1)	1999–2005	OEM CD/radio (Panasonic / Pioneer)	Serial number on label
Yaris II (P9)	2005–2011	Toyota Touch / OEM CD (Pioneer / Fujitsu Ten)	Serial number on label
Yaris III (P13) & facelifts	2011–2020	Toyota Touch / Touch & Go (Pioneer / Fujitsu Ten)	Serial number on label or touchscreen

How to Find Your Yaris Radio Serial Number

Unlike some other brands, Toyota Yaris radios do not generally support a button-combination readout for the serial number. The serial is printed on a label on the unit itself, so you will typically need to either read it from the screen (on touchscreen models) or partially remove the radio to access the sticker.

Method 1 — Touchscreen information menu (Toyota Touch and Touch & Go)

On Yaris II and III models fitted with the Toyota Touch or Toyota Touch & Go system, the serial number can sometimes be found in the system information menu without removing the unit. With the ignition on, go to Setup > System Information (or General Settings > About depending on software version). The unit serial number is listed there. Once you have it, you can use it to retrieve your Toyota radio code online.

Method 2 — Label on the radio chassis

For Yaris I models with a conventional OEM head unit, and for cases where the touchscreen menu is inaccessible, the serial number is on a sticker on the side or back of the radio casing. Use plastic trim tools to remove the centre console surround, then release the radio using the appropriate removal keys or screws (Toyota Yaris I uses two Torx screws behind a trim ring; Yaris II and III use a bezel-release panel). Slide the unit forward enough to read the label, then note down the full serial number including any letter prefixes.

How to Enter the Code on a Yaris

The entry method depends on whether your Yaris has a button-operated OEM radio or a Toyota Touch touchscreen system.

For button-operated OEM radios (Yaris I and early Yaris II):

1. Turn the ignition to position II so the radio powers up and shows the code prompt.
2. Use preset buttons 1, 2, 3, and 4 to dial in each digit of your code. Pressing a button repeatedly cycles through the digits 0–9.
3. Once all four digits are displayed correctly, press Enter or hold the last button briefly to confirm.

For Toyota Touch and Touch & Go systems (Yaris II and III):

1. Switch the ignition on. The touchscreen will show a code entry keypad.
2. Tap the four digits of your code on the on-screen number pad.
3. Tap OK or Enter to confirm. The system will unlock and return to the home screen.

Troubleshooting Common Error Messages

• Locked / Code required — Normal anti-theft state after power loss. Enter the correct code to unlock.
• Incorrect code — try again — One or more digits were wrong. On Toyota Yaris radios the lockout is temporary: after a set number of wrong attempts (typically three), the unit imposes a waiting period before allowing further entries. The waiting time resets automatically; do not disconnect the battery during this period as it may restart the counter.
• Wait X minutes — The radio is in its lockout cooldown. Leave the ignition on (or in accessory mode) and wait for the timer to count down before trying again.
• No sound / blank display — Check the fuse. On all Yaris generations the audio system fuse is in the passenger compartment fusebox; refer to the owner's manual for the correct fuse position and rating.
• Touchscreen unresponsive — On Toyota Touch units, a frozen screen is occasionally caused by a software glitch rather than the code lock. Perform a soft reset by holding the power button for ten seconds; if the code prompt then appears, proceed with normal entry.

Frequently Asked Questions

Where is the Toyota Yaris radio code written in the owner's manual?

Toyota typically provided the code on a security card included with the vehicle's documentation wallet at the point of sale. It may be a small card separate from the handbook, filed alongside the service history. If you purchased the car second-hand and the card is missing, the code can be retrieved using the radio's serial number.

Can I find the code without removing the radio from my Yaris?

On Yaris II and III models with Toyota Touch or Touch & Go, the system information menu often shows the serial number directly on screen, so removal is not necessary in most cases. On earlier Yaris I models with OEM button radios, removal is generally required to access the serial number label.

How long does the Yaris radio lockout last?

Toyota Yaris radios use a temporary lockout system. The waiting period typically starts at around 30–60 minutes after the threshold of wrong attempts is reached, and resets automatically once the timer expires. Switching the ignition off and on will not bypass the timer — you must wait with the unit powered.

Do I need a code for the Toyota Touch & Go navigation system?

The Toyota Touch & Go system does incorporate a code lock that activates after a power interruption, just like conventional radios. The entry process is via the touchscreen keypad rather than physical buttons. The serial number required for the lookup is found in the system settings menu as described above.

Is the CQ-JF10 the same radio as the Toyota OEM unit in the Yaris?

The CQ-JF10 is a Panasonic-manufactured OEM unit used in several Toyota models of the late 1990s and early 2000s, including some Yaris I variants. It uses the same serial-number and code system as other Toyota OEM radios of the era, so the retrieval process is identical.

Need a code for a different make or model? Browse all supported vehicles in our radio code brands directory.