From Serial Number to Unlock Code for your Honda HR-V - Explained
- Instead of contacting Honda dealer or searching forums you can find the code online using the radio S/N.
- First locate your radio's serial. You will always find it on the unit itself, and in some cases it can be visible on the HR-V's display.
- Type it into the form above, and the system will identify the correct 2019 HR-V unlock code.
- After receiving your code, input it using HR-V's radio buttons to release the blockade fully.
- The entire process takes only a few minutes and requires no VIN, documents, or technical knowledge.
How to Find the Serial Number on Your 2019 Honda HR-V Radio?
Very useful fact to know is that factory radios use a unique S/N to identify each unit.
The security system matches the code directly to the serial.
Different from car-specific data like VIN or registration information, it is not determined by the model or production year, so you'll be able to generate it even if you have a radio that you installed afterwards.
Depending on the manufacturer and radio installed in your Honda HR-V, the access method varies.
These are the best ways to locate it.
Factory radios fitted to the 2019 Honda HR-V
The 2019 model year is the mid-cycle refresh of the 1st gen HR-V and brings the most significant audio change of the run. The LX trim continues with the 5-inch color audio system, controlled by physical buttons and a volume knob and driving a 4-speaker layout. New for 2019, the Sport trim is added between LX and EX and gets the 7-inch Display Audio touchscreen, which is itself reworked: a physical volume knob is restored to the head unit after owner complaints about the earlier capacitive design, the icons are reconfigured for clearer use, and Apple CarPlay and Android Auto are added as standard on Sport and higher trims. EX, EX-L and Touring share this updated 7-inch Display Audio with smartphone integration, with EX-L and Touring layering on the navigation experience, voice recognition and HD Radio. Touring is also new for 2019 and sits at the top of the line-up with an upgraded navigation system featuring higher resolution and 3D landmarks on the same head unit family.
Accessing the Serial Number Through the Radio Menu
Try the following for your 2019 Honda HR-V:
The 2019 Honda HR-V could have Honda's Display Audio touchscreen (8" depending on trim) or a base non-touchscreen radio. Either type support serial number display via the 1+6 button method:
- Turn ignition to ON. Let the radio to boot. The screen shows "CODE" if locked.
- Press and hold preset buttons 1 and 6 for 3-5 seconds.
- The serial number appears in two halves (e.g.,
U3210+L0482).
Also: On 2019 HR-V with the Display Audio touchscreen, navigate to Settings → System → Device Information – the serial may be listed there without needing the button combination.
Reading the serial on a 2019 HR-V factory radio
The most widely documented Honda procedure on the LX 5-inch unit is to switch the ignition to ACC or ON with the audio unit powered off, press and hold preset buttons 1 and 6 together, then press the radio power button while still holding the two presets to wake the unit into the service screen. Where the screen appears, it alternates between a screen prefixed with the letter U followed by four characters and a screen prefixed with the letter L followed by four characters; recording both halves and concatenating them yields the 8-character serial used by Honda's lookup. The U and L are screen labels, not part of the value entered. On the refreshed 2019 7-inch Display Audio used by Sport, EX, EX-L and Touring, the on-screen path for the 1st gen HR-V has not been independently confirmed across multiple HR-V-specific sources, so the chassis label exposed during removal is the more reliable physical reference, and a Honda dealer reading via the HDS scan tool through the diagnostic connector remains a documented fallback. Honda's owner-manual reactivation note also applies: when the unit reauthorises itself after a power-loss event, no serial-based lookup is needed.
Locate Serial on HR-V's Radio Chassis
If the serial number cannot be accessed through menu, use the pull-out method.
Most Honda HR-V original radios include a tag with the serial number printed on the housing.
Step-by-Step:
- Turn off the vehicle.
- Remove the dashboard frame surrounding the radio.
- Loosen the clips.
- Move the unit slightly out to access the label.
The serial number is usually located near the barcode.
If neither methods succeed on the 2019 Honda HR-V:
- Turn off the vehicle.
- Detach the center stack trim panel. The 2019 HR-V's integrated dashboard uses plastic clips.
- On touchscreen trims: Unscrew the mounting screws (Phillips) securing the display module.
- For standard radios: Unscrew the 4 Phillips screws holding the radio unit.
- Ease the unit out and find the serial on the sticker on the back or side.
Note: The touchscreen unit is wider and more integrated than the standard radio. Be careful when removing it.
Removing the radio on a 2019 HR-V to read the serial label
The refresh did not change the dash architecture, so the removal sequence is unchanged from earlier 1st gen years. Begin by disconnecting the negative battery cable and waiting several minutes for the SRS capacitors to discharge before working in the dash. Start at a lower corner of the center bezel that surrounds the audio unit and climate controls and pull rearward with plastic trim tools to release the perimeter clips; the 1st gen HR-V uses clip-retained trim rather than visible screws around the head unit, so work evenly so no clip is over-stressed. As the bezel lifts out, disconnect the hazard switch and any accessory harnesses on its rear and set the panel aside on a soft cloth. Remove the screws that secure the audio unit bracket to the dash frame, supporting the head unit from underneath as the last fastener is freed so it does not drop. Slide the audio unit straight out of the dash opening, disconnect the antenna lead and the multi-pin harnesses on the rear, and read or photograph the chassis label; the printed 8-character serial should match the value returned by the on-screen procedure where it is available. Use only plastic trim tools throughout to avoid scratching the soft-touch surround, and keep the screws sorted because lengths can differ between the trim panel and the head-unit bracket.
Example: Honda HR-V serial number label location
Serial Number Format Guide for 2019 Honda HR-V
Depending on which radio fitted to the 2019 Honda HR-V:
U1234L5678– Most common Honda OEM formatHBM####– Used in Display Audio and navigation units913A####– Some Alpine-manufactured units
The 2019 HR-V may have: base CD radio (U/L format), Display Audio 5"/7" (HBM format), or navigation unit (HBM format). All require a 5-digit unlock code.
Important Verify you record the serial number, not the part number (which starts with 39100, 39101, or similar Honda part coding).
What the 2019 HR-V radio serial usually looks like
The 1st gen HR-V factory radio is reported to use the same 8-character alphanumeric serial format as other US-market Honda Display Audio units, and on most refreshed 2019 units the value is numeric. Where the on-screen procedure works, the first half is shown after the letter U on screen one and the second half after the letter L on screen two, and the letters themselves are screen labels that should not be entered into Honda's lookup tools. A representative format reads U1234 followed by L5678, which corresponds to a stored serial of 12345678. Some chassis labels carry a longer alphanumeric string with a manufacturer prefix on the printed sticker; the 8 characters that match the on-screen U and L pair are the ones used for the lookup. If the printed and displayed serials disagree, the on-screen value is generally the one accepted by the official Honda radio code portal, with the chassis label retained as a fallback when the service screen cannot be triggered.
Entering Your Unlock Code
When you obtain the correct unlock code based on the serial number, you can restore default functionality by entering it into the unit.
The code entry process depends on the head unit design, but most 2019 HR-V systems follow a similar structure using preset buttons, touch controls, or rotary knobs - depending on if it's a factory or an aftermarket unit.
You will typically see CODE displayed on screen.
Step-by-Step Code Input Guide
To input the code on the 2019 Honda HR-V:
- Ignition ON. Radio displays "CODE" or "ENTER CODE".
- Non-touchscreen models: Press preset buttons 1-5 to cycle to each digit, then press and hold button 6 to confirm.
- Display Audio touchscreen: An on-screen keypad appears. Enter each digit and press "Enter" or "OK".
Lockout: 3 wrong entries cause a 60-minute lockout. Leave ignition ON. Do not cycle the key or the timer resets.
Entering the unlock code on a 2019 HR-V radio
If a CODE or ENTER CODE prompt appears after a power-loss event, switch the ignition to ON and power the audio unit so the prompt is shown on the 5-inch LX screen or the refreshed 7-inch Display Audio screen on Sport, EX, EX-L and Touring. On the LX 5-inch unit, use preset buttons 1 through 5 to set each digit of the 5-digit code in order, pressing each preset the number of times required for that digit, then submit by holding preset 6. On the refreshed 7-inch Display Audio, the 5-digit code is tapped on the on-screen number pad and confirmed with the on-screen ENTER soft key once the full code is visible; the new physical volume knob added in 2019 is for audio volume only and is not used in the code-entry sequence. If the unit reactivates itself when battery power is restored, that is the documented Honda audio reactivation behavior described in the owner's manual and no separate code entry is required. Repeated wrong entries trigger a temporary lockout that requires the ignition to be left in the ON position for about an hour before another attempt is accepted.
Understanding Unlock Issues with Your HR-V
The Display Audio era includes radios using multiple serial prefixes depending on which unit was fitted:
U####L####— base CD radio serial (10 characters, two halves).HBM####— Display Audio 5"/7" and navigation units.913A####— certain Alpine OEM units.
Part numbers printed nearby begin with 39100 or 39101 — these are not serials. When in doubt, use the Settings → Device Information menu or the 1+6 button method to display the serial directly from the unit.
For Display Audio-era Honda radios, a rejected code most often means the serial was taken from the wrong source. Either retrieval method can produce the correct serial — double-check that the serial you submitted was read off the radio unit and not from the owner's card.
After one failed entry, pause and contact support before trying again — another incorrect entry gets you one step closer to the 60-minute lockout. A no-charge serial reverification can be done on request.
Entry method depends on the exact radio variant in the 2014–2021 HR-V:
- Non-touchscreen base radio: Press preset buttons 1–5 to scroll to each digit, then press and hold button 6 to confirm — same as older Honda platforms.
- Display Audio 5" or 7" touchscreen: An on-screen numeric keypad is shown when the code prompt is active. Tap each digit and press OK or Enter on screen.
If the touchscreen is unresponsive, try the physical preset buttons — some units accept both input method. Ensure the screen is fully powered on before attempting entry.
The Display Audio platform enforces the same 3-attempt lockout as older Honda radios. To recover:
- Leave the ignition in ON or ACC — do not switch off.
- Allow the full 60-minute period. The touchscreen might dim during this time — this is expected.
- After 60 minutes, the radio re-displays "CODE" and another attempt is possible.
For touchscreen units, the lockout countdown runs in the background. Simply leave the vehicle running or the ignition on ACC for the full hour.
When the touchscreen powers on but goes straight to the home screen without a "CODE" display, check the following:
- The radio may not be locked — some battery changes skip the lock if done quickly enough.
- Certain Display Audio units, the code prompt shows only on the audio portion of the screen, not the navigation display — wait a few seconds after startup.
- Check the Settings → System → Device Information route; if the serial is visible there, the unit could still be functional without a code.
Should none of the above match, a fuse check is the next step — a blown fuse prevents the radio from showing any display at all.
Why Did the Radio Lock and Ask for a Code?
Honda's Display Audio system carries the same anti-theft architecture as earlier radios: losing battery power triggers a code request at next startup. Applies to both the base radio and the Display Audio touchscreen.
- Battery replacement — by far the most frequent cause.
- Battery disconnect during repairs — service that cuts battery power will re-engage the lock.
- Completely dead battery — a fully discharged battery also triggers the request.
Worth knowing: many higher-trim Display Audio models from the 2014–2021 period might not use a traditional code-based lock — if the radio never showed "CODE" after a battery change, it could have a different anti-theft method linked to the vehicle VIN.