Brand: JVC
Category: Audio System
Document Type: Manual
Language: EN
Available Languages: EN , ES
Manual for KD-X480BHS / KD-X380BTS
Uploaded: Nov. 21, 2025, 7:12 p.m.
Warranty Information
No warranty information is provided in the extracted pages.
Before Use
- To ensure proper use, read through this manual and observe Warnings and Cautions.
- Keep the manual in a safe and accessible place.
- WARNING: Do not operate functions that distract from safe driving. Do not ingest the battery.
- CAUTION: Adjust volume to hear outside sounds. Lower volume before playing digital sources. Avoid external devices hindering safe driving. Back up important data. Do not leave metallic objects inside the unit.
Basics - Faceplate
- Turn on: Press SRC.
- Turn off: Press and hold SRC.
- Adjust volume: Turn volume knob.
- Mute/Pause: Press volume knob.
- Select source: Press SRC repeatedly.
- Change display: Press ✡ repeatedly.
Basics - Remote Control
- Adjust volume: Press VOL +/-.
- Mute/Pause: Press ⧄.
- Select source: Press SOURCE repeatedly.
Troubleshooting and error codes
| Symptom | Solution |
|---|---|
| General | |
| No sound is heard. | • Adjust the volume to the optimal level. • Inspect the cables and connections. |
| “MISWIRING CHECK WIRING THEN PWR ON" appears. | Turn off the unit and check if the speaker cable terminals are correctly insulated. Then, turn the unit on again. |
| “PROTECTING SEND SERVICE" appears. | Take the unit to the nearest service center. |
| The source cannot be selected. | Check the [SOURCE SELECT] setting. (Page 6) |
| The receiver does not operate at all. | Reset the unit. (Page 4) |
| Incorrect characters are not displayed. | • This unit only displays uppercase letters, numbers, and a limited number of symbols. • Depending on the display language selected (Page 6), some characters may not display correctly. |
| HD Radio Tuner/Radio | |
| Radio reception is poor. | Firmly connect the antenna. |
| Static noise while listening to the radio. | Firmly connect the antenna. |
| USB/iPod | |
| Playback order is not as expected. | USB devices are played back in creation order (date and time). Folder files are played back in filename order (alphabetical). This depends on the previous recording process (USB). |
| Playback time elapsed is incorrect. | Check if the file format is playable. (Page 35) |
| "NOT SUPPORT" appears and files are skipped. | • Do not use too many hierarchy levels and folders. • Reconnect the device (USB/iPod/iPhone). |
| "READING" message keeps flashing. | • Do not use too many hierarchy levels and folders. • Reconnect the device (USB/iPod/iPhone). |
| "UNSUPPORTED DEVICE" appears. | • Check if the USB device is compatible with this unit and if the file systems are in compatible formats. (Page 35) • Reconnect the USB device. |
| "UNRESPONSIVE DEVICE" appears. | Ensure there are no malfunctions in the USB device and reconnect it. |
| "USB HUB IS NOT SUPPORTED" appears. | A USB device cannot be connected via a USB hub to this unit. |
| "CANNOT PLAY” appears. | Connect a USB device containing playable audio files. |
| The source does not switch to "USB" when connecting a USB device while another source is playing. | The USB port is outputting more power than the design limit. Turn off the power and disconnect the USB device. Then, turn on the power and reconnect the USB device. If the problem persists, turn off or on the power (or reset the unit) before replacing it with another USB device. |
| "USB ERROR" appears. | Repeat the One-Time Setup process. See "How to perform the initial setup" on page 25. |
| iPod/iPhone does not turn on or function. | • Check the connection between this unit and the iPod/iPhone. • Disconnect and perform a forced reset of the iPod/iPhone. |
| "LOADING" appears when accessing the search mode by pressing / | This unit is still preparing the iPod/iPhone music list. This may take a while; try again later. |
| "NO DEVICE" | Connect a device (USB/iPod/iPhone) and switch to the USB/iPod USB source again. |
| "iPod ERROR" | Reconnect the iPod. Reset the iPod. Press and hold SRC to turn off the unit. Then, turn on the unit for error recovery. |
| "MEMORY FULL" | The maximum storage limit on your iPod/iPhone has been reached. |
| Radio SiriusXM® | |
| "CH LOCKED LOCK CODE?" | The selected channel is locked. To unlock, enter the correct lock code. (Page 16) |
| "CHAN UNSUB" | The selected channel is not subscribed. To subscribe, call 1-866-635-2349 in the U.S.A., or 1-888-539-7474 in Canada. (Page 13) |
| "CH UNAVAIL" | The selected channel is unavailable. For more information about the SiriusXM channel lineup, visit www.siriusxm.com. |
| "CHECK ANTENNA" | Check if the antenna and its connection are in satisfactory condition. |
| "CHECK TUNER" | Ensure the SiriusXM vehicle tuner is connected to the unit. |
| "NO SIGNAL" | Ensure the antenna is mounted externally on the vehicle. |
| "SUBSCRIPTION UPDATED - PRESS ENTER TO CONTINUE." | Your subscription has been updated. To continue, press the volume knob. |
| "CODE ERROR" | Ensure you have entered the correct access code. (Page 16) |
| "NO CONTENT" | Insufficient content available to start TuneScan. |
| "SCAN CANCEL" | TuneScan has been cancelled. |
| Bluetooth® | |
| No Bluetooth device is detected. | • Search for the Bluetooth device again. • Reset the unit. (Page 4) |
| Bluetooth pairing is not possible. | • Ensure you have entered the same PIN code on the unit and the Bluetooth device. • Delete the pairing information from the unit and the Bluetooth device; then, perform pairing again. (Page 19) |
| Noise or echo during phone conversation. | • Adjust the microphone position. (Page 18) • Check the [ECHO CANCEL] setting. (Page 21) |
| Low sound quality of the phone. | • Reduce the distance between the unit and the Bluetooth device. • Move the car to a location with better signal reception. |
| Phone call sound is not heard or voice command does not work. | Press ⧄ during a call to switch between hands-free and private conversation modes. (Page 20) |
| Sound is interrupted or skipped during playback from a Bluetooth audio player. | • Reduce the distance between the unit and the Bluetooth audio player. • Turn the unit off and on again; try to connect again. • Other Bluetooth devices may be trying to connect to the unit. |
| The connected Bluetooth audio player cannot be controlled. | • Check if the connected Bluetooth audio player is compatible with Audio/Video Remote Control Profile (AVRCP). (Refer to the audio player instructions.) • Disconnect and reconnect the Bluetooth audio player. |
| AMAZON ALEXA | |
| "PLEASE WAIT" | The unit is preparing to use the Bluetooth function. If the message does not appear, turn the unit off and on, then reconnect the device. |
| "NOT SUPPORT" | The connected phone is not compatible with voice recognition or phone book transfer function. |
| "NO ENTRY" | No registered device has been connected/located via Bluetooth. |
| "ERROR" | Try again. If "ERROR" appears again, check if the device is compatible with the function you are trying to use. |
| "NO INFO"/"NO DATA" | The Bluetooth device cannot obtain contact information. |
| "H/W ERROR" | Reset the unit and try the operation again. If "H/W ERROR" appears again, consult the nearest service center. |
| "SWITCHING NG” | Connected phones are not compatible with the phone switching function. |
| Bluetooth connection between the Bluetooth device and the unit is unstable. | Remove the unused Bluetooth registered device from the unit. (Page 23) |
| Alexa does not respond to voice commands. | The Amazon cloud could not analyze the voice input. |
| Alexa's response is incorrect. | Alexa does not understand me or fails to capture my entire request or phrase. Please try again. (Page 26) |
| "DISCONNECTED" | Ensure your smartphone is connected to the unit via Bluetooth. (Page 19) |
| Cannot connect or reconnect to the Alexa mobile app. | • Ensure the audio device is connected via Bluetooth. Select the audio device from [AUDIO SELECT] in [BT MODE]. (Page 23) • Repeat the One-Time Setup process. See "How to perform the initial setup" on page 25. • Turn the unit off and on again; try to connect again. • On an iOS device, ensure ALEXA source or iPod BT source is selected. |
| Cannot exit the "TALKING" screen after ending a call. | The unit may take some time to exit the "TALKING" screen. Press Q/ to return to the previous source control screen. |
| Cannot go to the "LISTENING" screen after activating Alexa. | • Disconnect and reconnect the Bluetooth connection. (Page 19) • Disconnect and reconnect the Alexa connection. (Page 25) • Turn off the unit for about 10 seconds, turn it on, and try again. |