Where to Find the Serial Number on your CR-V
The first part is to locate the radio's S/N.
Depending on the radio unit installed in your 2020 CR-V, the S/N can be accessed either through the screen menu or by checking the label on the radio itself.
Below are the most common methods to identify your serial quickly.
Factory radios fitted to the 2020 Honda CR-V
- 5-inch color LCD audio system on the LX trim, controlled by physical buttons and a volume knob, with AM/FM, Bluetooth HandsFreeLink, a single USB input and a 4-speaker layout.
- 7-inch Display Audio touchscreen on EX, EX-L and Touring trims, with Apple CarPlay, Android Auto, SiriusXM, Pandora and HD Radio support on EX-L and above.
- EX-L adds the 8-speaker premium audio package, while Touring layers in Honda Satellite-Linked Navigation, voice recognition and a subwoofer on the same 7-inch head unit.
- 2020 introduces the CR-V Hybrid for the US market on EX, EX-L and Touring trims; the hybrid trims share the same 7-inch Display Audio head unit family as the equivalent gas trims, with hybrid-specific power-flow displays added to the home screen.
- Across the line-up, the audio units are tied into Honda's anti-theft strategy, although many US-market 5th gen Display Audio units are VIN-paired and re-authorize themselves when power is restored.
Screen-Based Serial Lookup Method
These are the steps you should follow for 2020 Honda CR-V:
The 2020 Honda CR-V may feature Honda's Display Audio touchscreen (5" depending on trim) or a standard non-touchscreen radio. All versions support serial number display via the 1+6 button method:
- Turn ignition to ON. Let the radio to power up. The screen shows "CODE" when locked.
- Press and hold preset buttons 1 and 6 for approximately 3-5 seconds.
- The serial number displays in two halves (e.g.,
U3210+L0482).
Alternative: On 2020 CR-V with the Display Audio touchscreen, navigate to Settings → System → Device Information – the serial may be shown there instead of the button combination.
Reading the serial on a 2020 CR-V factory radio
- Switch the ignition to ACC or ON but leave the audio unit powered off so the dash is live without the radio playing.
- Press and hold preset buttons 1 and 6 simultaneously on the audio unit's preset row.
- While still holding 1 and 6, press the radio power button to wake the unit; the service screen used to display the serial should appear on the LX 5-inch unit and most EX/EX-L Display Audio units.
- Read and record the four characters shown after the letter U on the first screen, then wait for the display to alternate and record the four characters shown after the letter L on the second screen.
- Concatenate the two halves in order to obtain the 8-character serial; the U and L are screen prefixes that are not entered into the lookup.
- If no serial screen appears, the unit may be VIN-paired and may not require a code at all; if a code is still requested, the chassis label exposed during removal carries the same value, and a Honda dealer can read the serial through the diagnostic connector with the HDS scan tool.
Check it by Pulling Out the Unit
If the serial number cannot be accessed on-screen, use the removal method.
Most Honda CR-V factory radios include a tag with the serial number printed on the casing.
Step-by-Step:
- Switch off the vehicle.
- Detach the trim surrounding the radio.
- Release the fasteners.
- Pull the unit forward to access the label.
The serial number is usually located near the printed code.
If none of these methods display the serial on the 2020 Honda CR-V:
- Power down the vehicle.
- Detach the center stack trim panel. The 2020 CR-V's modern dashboard uses snap-fit clips.
- On touchscreen trims: Unscrew the mounting screws (Phillips) securing the display module.
- For standard radios: Unscrew the four screws holding the head unit.
- Pull the unit out and find the serial on the sticker on the unit casing.
Tip: The Display Audio unit is wider and more tightly fitted than the base radio. Be careful when extracting it.
Removing the radio on a 2020 CR-V to read the serial label
- Disconnect the negative battery terminal first and wait several minutes for the SRS capacitors to discharge before touching the dash; on the CR-V Hybrid, follow Honda's hybrid-specific high-voltage safety steps and avoid disturbing the orange high-voltage cabling.
- Open the storage cubby below the audio unit and remove the two Phillips screws on the underside of the center trim piece that are accessible from inside the cubby.
- Pull the center trim panel rearward starting at the lower edge to release its perimeter clips, then disconnect the hazard switch and any accessory harnesses on its rear and set it aside on a soft surface.
- Remove the screws or bolts now visible around the audio unit bracket, 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 connectors on the rear, and read or photograph the chassis label; the printed 8-character serial should match the on-screen value.
- 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 CR-V serial number label location
These are the Common Serial Formats
Based on the radio fitted to the 2020 Honda CR-V:
U1234L5678– Standard Honda OEM formatHBM####– Used in Display Audio and nav-equipped units913A####– Some Alpine-manufactured units
The 2020 CR-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 Make sure you copy the serial number, not the part number (which starts with 39100, 39101, or similar Honda part coding).
What the 2020 CR-V radio serial usually looks like
- The serial returned by the on-screen procedure is typically 8 characters long and is the concatenation of the four characters after U on screen one and the four characters after L on screen two.
- The U and L letters are display labels for the upper and lower halves of the serial; they are not part of the value submitted to Honda.
- On most 2020 CR-V factory units the serial is purely numeric, although some chassis labels include a longer alphanumeric string with a manufacturer prefix that should be ignored beyond the 8 matching characters.
- A representative format reads U1234 followed by L5678, corresponding to a stored serial of 12345678 for the lookup.
- If the printed label and the on-screen value 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.
Code Entry Process for 2020 CR-V
After generating the correct unlock code based on the serial number, you can restore normal functionality by entering it into the unit.
The code entry process depends on the radio interface, but most 2020 CR-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 2020 Honda CR-V:
- Ignition ON. Radio shows "CODE" or "ENTER CODE".
- Non-touchscreen models: Use preset buttons 1-5 to select each digit, then hold button 6 to confirm.
- Display Audio touchscreen: An on-screen keypad may appear. Enter each digit and press "Enter" or "OK".
Lockout: Three 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 2020 CR-V radio
- Switch the ignition to ON and power the audio unit so the CODE or ENTER CODE prompt is shown on the 5-inch LX screen or the 7-inch Display Audio screen.
- 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 7-inch Display Audio used by EX, EX-L, Touring and the new Hybrid trims, tap the on-screen number pad to enter each digit and confirm with the on-screen ENTER soft key when the full code is visible.
- If the unit re-authorizes by itself once the battery is reconnected, no code entry is required; this VIN-pairing behavior is documented for many 5th gen CR-V Display Audio units in the US market.
- If the wrong code is entered repeatedly, the unit enters a temporary lockout that requires the ignition to be left in the ON position for about an hour before another attempt can be accepted.
How the Code Retrieval Process Works for Honda CR-V 2020
Car radios use security codes tied to the radio unit itself rather than the model or production year.
- The system uses the CR-V's radio serial to retrieve the unlock code.
- After entering the serial into the form above, the system identifies the radio unit and retrieves the corresponding code.
- You can then enter the code directly into your Honda radio.
- Compared to Honda dealer retrieval, this method is faster and more convenient.
What Caused the Radio to Lock?
Honda's Display Audio system carries the same anti-theft architecture as earlier radios: losing battery power causes a code request at next startup. Applies to both the base radio and the Display Audio touchscreen.
- Battery replacement — the usual culprit.
- Battery disconnect during repairs — service that interrupts battery power will activate the lock.
- Completely dead battery — a fully discharged battery has the same result.
Worth knowing: many higher-end Display Audio models from this era do 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.
Fixing Common Code Entry Problems for 2020 CR-V
The Display Audio era spans 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 start with 39100 or 39101 — do not submit these. When in doubt, use the Settings → Device Information menu or the 1+6 button method to retrieve the serial directly from the radio.
Code entry depends on the specific radio in the Display Audio-era CR-V:
- Non-touchscreen base radio: Press preset buttons 1–5 to cycle to each digit, then hold button 6 to confirm — identical to older Honda platforms.
- Display Audio 5" or 7" touchscreen: An on-screen numeric keypad is shown when the code prompt is active. Enter the digits and press OK or Enter on screen.
If the touchscreen is unresponsive, try the physical preset buttons — certain units accept both input method. Ensure the screen is fully booted before attempting entry.
When the touchscreen powers on but shows the home screen without any "CODE" prompt, check the following:
- The radio may not be locked — some battery changes don't trigger the lock if done quickly enough.
- On some Display Audio units, the code prompt appears only on the audio portion of the screen, not the navigation display — give it a few seconds after startup.
- Check the Settings → System → Device Information route; should the serial appear, 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 will stop the radio from powering on at all.
For Display Audio-era Honda radios, a rejected code is typically caused by the serial was misread. Both the button method and the settings menu can produce the correct serial — verify that the serial you submitted came from the radio itself and not from a sticker elsewhere in the car.
If the code was already entered once and rejected, stop and contact support before trying again — another incorrect entry brings you closer to the 60-minute lockout. A free serial reverification is available on request.
The Display Audio platform enforces the same three-try lockout as earlier Honda radios. To recover:
- Maintain the ignition in ON or ACC — avoid turning it off.
- Allow the full 60-minute period. The touchscreen may go to sleep during this time — that's normal.
- After 60 minutes, the radio re-displays "CODE" and another attempt is possible.
On Display Audio touchscreen models, the lockout countdown runs in the background. Simply leave the vehicle running or the ignition on ACC for the full hour.