Hyundai Tucson LM Quiz
Body Electrical System

Troubleshooting

In this manual: Body Electrical System
General Information — 1Engine Mechanical System — 44Engine Electrical System — 45Emission Control System — 24Engine Control System/Fuel System — 93Clutch System — 13Manual Transmission — 18Automatic Transmission — 87Four-Wheel Drive (4WD) System — 26Drive Shaft and Axle — 29Suspension System — 35Steering — 20Restraints — 47Brake System — 36Body (Interior and Exterior) — 53Body Electrical System — 202Heating, Ventilation, and Air Conditioning — 58
5steps
~30min
2/5difficulty
Done 0 of 5

Troubleshooting Guide

Before Assuming the Product Is Defective
  1. Errors that occur during operation or installation of the unit may be mistaken for a malfunction of the unit itself.
  2. If you experience problems with the unit, try the suggestions listed below.
  3. If the problem persists, contact your dealer or the nearest service center.
Symptom Function
Small red, blue, or green dots appear on the screen. Because the LCD is manufactured using high-density pixel technology, dead pixels or bright spots may appear on up to 0.01% of the total number of pixels.
No sound or picture
  • Has the vehicle ignition been turned to the [ACC] or [ON] position?
  • Is the SYSTEM turned OFF?
Video is displayed, but there is no sound
  • Is the volume set too low?
  • Is the volume set to mute?
When the power is turned on, the corners of the screen are dark
  • The display may appear slightly darker after prolonged use. This is normal for LCD panels and is not a malfunction.
  • If the screen is very dark, contact your dealer or the nearest service center.
Sound comes from only one speaker
  • Is the FAD/BAL or volume control set to one side only?
No sound or picture in AUX mode Are the audio and video plugs fully inserted into the AUX jack?
External device does not work Is the external device connected using a standard connection cable?
Road is missing Some map data may be missing or incorrect.
Road name is pronounced incorrectly The TTS (Text-to-Speech) function pronounces street names based on phonetic spelling.
This will be continuously updated with the map database.

Troubleshooting
Symptom Possible Cause Solution
Power does not turn on.
CD does not play.
  • The fuse is blown.
  • The unit is incorrectly connected.
  • The DISC is not inserted or is inserted upside down.
  • The DISC is dirty.
  • The vehicle battery is discharged.
  • A disc that is not supported by the unit has been inserted.
  • Replace with a fuse of the correct rating. If the fuse blows again, contact your dealer or a service center.
  • Make sure the unit is connected correctly.
  • Insert the disc correctly with the label side facing the correct direction.
  • Wipe dirt and foreign substances from the DISC.
  • Charge the battery. If the problem is not resolved, contact your dealer or a service center.
  • Insert a disc that is supported by the unit.
No sound.
  • The volume level is set to the lowest level.
  • The connector is incorrectly connected.
  • The unit is currently performing fast forward, fast reverse, scan, or slow-motion playback.
  • Adjust the volume level.
  • Check the connection status.
  • No sound is output while the unit is performing fast forward, fast reverse, scan, or slow-motion playback.
Poor sound or video quality.
  • The DISC is dirty or scratched.
  • Vibration occurs from the position where the conversion switch was installed.
  • Poor image color and tone.
  • Wipe water or dirt from the DISC. Do not use a disc that is scratched.
  • Sound may cut out and the picture may distort if the unit vibrates. The unit will return to normal operation once the vibration stops.
  • Aging of the video display and reduced performance may cause some degradation in quality.
USB does not work.
  • The USB memory is damaged.
  • The USB memory is contaminated.
  • A commercially available USB hub is being used.
  • A USB extension cable is being used.
  • A USB drive other than a metal-cased USB drive is being used.
  • An HDD, CF, or SD memory type is being used.
  • There are no playable music files.
  • Please use the USB after formatting it in FAT 12/16/32.
  • Remove any foreign substances from the contact surface of the USB drive and the multimedia terminal.
  • Connect the USB drive directly to the multimedia terminal in the vehicle.
  • Connect the USB drive directly to the multimedia terminal in the vehicle.
  • Use a standard USB drive.
  • Use a standard USB drive.
  • Only MP3 and WMA file formats are supported. Use only supported music file formats.
The iPod is not recognized even though it is connected.
  • There are no playable titles.
  • The iPod firmware version has not been properly updated.
  • The iPod does not recognize the downloads.
  • Use iTunes to download and store MP3 files on the iPod.
  • Use iTunes to update the firmware version, then reconnect the iPod to the unit.
  • Reset the iPod and reconnect it to the unit.

LG AVN Basic Troubleshooting Guide. Before replacing the head unit, check the AVN system by following the procedures in this guide.

Flow Inspection

  1. AVN reset: Press the POWER knob, then turn it counterclockwise while holding the EJECT button.
  2. Symptom Troubleshooting. Before performing the "Symptom Troubleshooting", check the following items.
    A. Wires and Connectors
    B. External Condition
    C. Symptom frequency: always, intermittent, or frequent.
    D. How to Reproduce the Symptom
    1. GPS
      A. Current location cannot be determined (GPS does not receive signal)
      Step Troubleshooting Procedures
      1 Is the vehicle in a location with a clear view of the sky, away from tall buildings and trees?

      [YES] Inspect the GPS antenna and wiring (refer to Repair Manual - "AVN Antenna") and go to Step 2.
      [NO] Move the vehicle to another location free of obstructions.
      2 Can the AVN automatically receive a GPS signal within 10 minutes?

      [YES] The problem is resolved.
      [NO] Replace the AVN head unit if it still does not operate properly.

      • GPS cannot be used indoors. It must be connected to an ACC power source in the vehicle, in a location where the satellite signal can be easily received.
      • When first connected, GPS normally requires about 10 minutes to operate properly, but the connection time may vary depending on weather conditions and surrounding obstacles.
    2. No Power or Frozen Logo
      A. No Power
      Step Troubleshooting Procedures
      1 Does the "POWER" button operate properly?

      [YES] Go to Step 2.
      [NO] If the "POWER" button is damaged or does not operate properly, replace the AVN head unit.
      2 To reset the AVN system, turn it off for 5 minutes or remove the power fuse, then turn it on again. Does it operate properly?

      [YES] The problem is resolved.
      [NO] Replace the AVN head unit if it still does not operate properly.

      A. Frozen Logo
      Step Troubleshooting Procedures
      1 Does the logo freeze every time the AVN starts?

      [YES] Go to Step 3.
      [NO] Go to Step 2.
      2 To reset the AVN system, turn it off for 5 minutes or remove the power fuse, then turn it on again. Does it operate properly?

      [YES] The problem is resolved.
      [NO] Go to Step 3.
      3 Update the AVN S/W. (Refer to "Software Version Check and Update" in this manual.)
      Does the screen operate properly?

      [YES] The problem is resolved.
      [NO] Replace the AVN head unit if it still does not operate properly.
    3. Display Panel
      A. Error message appears, striped line appears, or the touch screen does not work at all
      Step Troubleshooting Procedures
      1 Does an error message appear as shown below?

      [YES] Update the AVN S/W (refer to "S/W Version Check and Update" in this manual).
      [NO] Go to Step 2.
      2 Is there an uneven stripe on the screen or does the screen flicker?

      [YES] Replace the AVN head unit if it still does not operate properly.
      [NO] If it does not work at all, replace the AVN head unit.
    4. Radio (Tuner)
      A. FM/AM/RDS do not operate properly
      Step Troubleshooting Procedures
      1 Is there a symptom where the signal is received intermittently?

      [YES] If overall operation is normal, do not replace the AVN head unit.
      [NO] The problem occurs all the time. Go to Step 2.
      2 Inspect the glass radio antenna, antenna cable, and antenna amplifier.
      (Refer to Repair Manual - "AVN Antenna").
      Does it operate properly?

      [YES] The problem is resolved.
      [NO] Replace the AVN head unit if it still does not operate properly.
    5. Navigation Map
      A. POI/Address function does not operate properly
      Step Troubleshooting Procedures
      1 This symptom is related to map data. Update the map data to the latest version if you want to expand map coverage or POI categories.

      A. Map Screen Error
      Step Troubleshooting Procedures
      1 If only the map screen is constantly not displayed, replace the AVN head unit.
    6. CD Deck and AVN Buttons
      A. The CD deck Insert/Eject function is always impossible to use.
      Step Troubleshooting Procedures
      1 Replace the AVN head unit if the Insert or Eject function does not always work.

      A. There is an abnormal noise, or it is always impossible to play a CD.
      Step Troubleshooting Procedures
      1 Does this symptom appear with a specific disc?

      [YES] Check the condition of the deck, inspect the CD for scratches, or check the file type on the CD.
      [NO] Replace the AVN head unit if the symptom appears constantly.

      A. Buttons or knobs do not operate.
      Step Troubleshooting Procedures
      1 Replace the AVN head unit if a button or knob does not operate mechanically.
    7. Bluetooth
      A. Phonebook or call history (incoming/outgoing) download function is not supported.
      Step Troubleshooting Procedures
      1 This is a Bluetooth compatibility issue.
      (Not a problem with the AVN head unit.)
      Check Bluetooth phone compatibility.
      (http://www.navigation.com/hyundai)

      A. Bluetooth pairing is not compatible with a specific mobile phone.
      Step Troubleshooting Procedures
      1 Check Bluetooth phone compatibility.
      If the mobile phone is listed, perform a factory reset (refer to "[Appendix] AVN Factory Reset Procedures").
      (http://www.navigation.com/hyundai)

      A. Bluetooth call quality is sometimes poor.
      Step Troubleshooting Procedures
      1 This depends on the region or model of the mobile phone.
    8. Rearview Camera
      A. No guide lines on screen
      Step Troubleshooting Procedures
      1 Guide lines usually do not appear until the AVN has fully booted.
      (Guide lines will appear approximately 30 seconds after AVN startup.)
      If the rear view camera does not work constantly, replace the AVN head unit.
    9. USB
      A. USB port does not operate properly
      Step Troubleshooting Procedures
      1 Check the USB port with other USB devices. Does the USB port operate properly?

      [YES] There is no problem with the USB port.
      [NO] There is a problem with the USB port. Check the connection between the AVN head unit and the USB port.
      (Refer to Repair Manual - "AUX Connector")

Test yourself

A quick Hyundai Tucson LM quiz: every answer comes with an explanation and a link to the manual page.