Honda Civic Radio Code: Complete Guide to Unlocking Your Stereo

Q: When Do You Need the Radio Code?

Your Honda Civic's head unit will lock and display CODE or ENTER CODE when: The battery has been replaced or disconnected A radio fuse has been removed The battery has gone completely flat

The Honda Civic is a reliable and popular compact car in the UK. Honda head units are known for locking firmly after a power interruption. This guide explains how to retrieve the Honda Civic radio code and get back to listening.

When Do You Need the Radio Code?

Your Honda Civic's head unit will lock and display CODE or ENTER CODE when:

The battery has been replaced or disconnected
A radio fuse has been removed
The battery has gone completely flat

Finding the Serial Number

Honda head units have a unique serial number needed to retrieve the Honda Civic radio code.

Method 1: Via the Display

Turn the ignition on (engine does not need to be running).
Hold preset buttons 1 and 6 simultaneously.
Switch the radio on at the same time.
The serial number appears in two parts on the display (e.g. U2300 L0023).
Note both parts — together they form the complete serial number.

Method 2: Via the Label

Remove the radio and read the serial number from the label. Use this method if the display method does not work.

Retrieving the Code

Go to RadioCodeLookup.com/brands/honda.
Enter the complete serial number.
Receive your five-digit Honda Civic radio code.

Entering the Code

Switch the radio on — the display shows CODE or ENTER CODE.
Use preset buttons 1–5 (or 1–6 on newer models) to enter the code.
Each button represents one digit position. Press repeatedly to select the correct digit.

Frequently Asked Questions

How many attempts do I have on a Honda Civic?

After 5 incorrect attempts, the head unit locks completely. Disconnect the battery for 10 minutes, reconnect it, and leave the ignition on for one hour before trying again.

Does the 2016+ Honda Civic still have a radio code?

The tenth-generation Honda Civic (2016+) with the touchscreen infotainment system may not use a traditional radio code in all trim levels. Check with your Honda dealer if you are unsure.

My Honda shows ERR. What now?

ERR means the unit has been fully blocked after too many incorrect attempts. Disconnect the battery for 10 minutes, reconnect it, and leave the ignition on before trying again with the correct code.

Honda Civic Radio Code: Complete Guide to Unlocking Your Stereo

When Do You Need the Radio Code?

Your Honda Civic's head unit will lock and display CODE or ENTER CODE when:

The battery has been replaced or disconnected
A radio fuse has been removed
The battery has gone completely flat

Finding the Serial Number

Honda head units have a unique serial number needed to retrieve the Honda Civic radio code.

Method 1: Via the Display

Turn the ignition on (engine does not need to be running).
Hold preset buttons 1 and 6 simultaneously.
Switch the radio on at the same time.
The serial number appears in two parts on the display (e.g. U2300 L0023).
Note both parts — together they form the complete serial number.

Method 2: Via the Label

Remove the radio and read the serial number from the label. Use this method if the display method does not work.

Retrieving the Code

Go to RadioCodeLookup.com/brands/honda.
Enter the complete serial number.
Receive your five-digit Honda Civic radio code.

Entering the Code

Switch the radio on — the display shows CODE or ENTER CODE.
Use preset buttons 1–5 (or 1–6 on newer models) to enter the code.
Each button represents one digit position. Press repeatedly to select the correct digit.

Frequently Asked Questions

How many attempts do I have on a Honda Civic?

After 5 incorrect attempts, the head unit locks completely. Disconnect the battery for 10 minutes, reconnect it, and leave the ignition on for one hour before trying again.

Does the 2016+ Honda Civic still have a radio code?

The tenth-generation Honda Civic (2016+) with the touchscreen infotainment system may not use a traditional radio code in all trim levels. Check with your Honda dealer if you are unsure.

My Honda shows ERR. What now?

ERR means the unit has been fully blocked after too many incorrect attempts. Disconnect the battery for 10 minutes, reconnect it, and leave the ignition on before trying again with the correct code.