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Home >> Kia >> 2019 >> Forte S >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Audio/Video/Navigation (AVN) System >> Troubleshooting >> Bluetooth/Voice Recognition/Mic.
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Bluetooth/Voice Recognition/Mic.

  1. System features/Misdiagnose cases
    Inspection Description
    (1) System features Bluetooth function available after H/U boot.
    Connect to Bluetooth using phone by selecting H/U from add list.
    User's voice must be heard from other end while calling using Bluetooth.
    If voice recognition button is pressed, "Beep" sound will be heard. Voice recognition function starts after the "Beep" sound and will respond to its voice command.
    (2) Misdiagnose cases
    1. Noise occurs while Bluetooth streaming using certain application - Application issue (Not AVN, AMP issue)
    2. iPhone in private mode: Call mode will be in iPhone if you answer call by using phone button. → In this case, user can't hear other end
    3. Check if vehicle has Bluetooth or Voice recognition available
      Fig 1: Screen Display - Checking If Vehicle Has Bluetooth Or Voice Recognition Available
      G12832125Courtesy of KIA MOTORS AMERICA, INC.
  2. Bluetooth unable to pair
    Defect Inspection Description
    "Preparing Bluetooth" message displayed (1) Message pop up after H/U boots
    1. Message appears after H/U reboot → Replace H/U
    2. Message only appears shortly after boot → Good H/U (Preparing for Bluetooth function at booting)
    Unable to pair/Bluetooth not connected (1) Enable Phone Bluetooth
    G12832126Courtesy of KIA MOTORS AMERICA, INC.

    →Phone Bluetooth settings must be enabled for paring
    Unable to pair/Bluetooth not connected (2) Registered Phone list
    G12832127Courtesy of KIA MOTORS AMERICA, INC.

    →If phone is not registered on the phone list, auto-pairing will not work (Must be paired before for auto-pairing function)
    (3) Re-connect test
    G12832128Courtesy of KIA MOTORS AMERICA, INC.

    → Restart phone,
    (4) Phone compatibility
    • KMC: Red members service items → https://www.kia.com/us/en/content/owners/bluetooth
    → Check compatibility by downloading compatibility list→ If phone is not listed, it is compatibility issue
    G12832129Courtesy of KIA MOTORS AMERICA, INC.
    If issue still exist, replace H/U and re-test.
  3. Streaming
    Defect Inspection Description
    Streaming (1) Sound output on other mode
    1. Sound issue or noise from different mode

      →Check cable, connector, and amp (Issue not related to streaming)
    (2) Phone application and media source
    G12832130Courtesy of KIA MOTORS AMERICA, INC.
    1. H/U will play media source from phone ACC OFF, H/U Power off, and check phone's play setting
      1. Phone application (No sound, Noise, Title display)

        * Example: Application like I-MEPS will provide low quality streaming service. User may think it is H/U defect

      2. Noise from media source

        * If downloaded using P2P source


    If phone application and media source is good, replace H/U and re-test
    Streaming (Auto-play) (1) Phone specs
    1. Issue: After connecting to BT streaming, "Resume" message does not pop-up, or delayed.
      1. Press "Play" using connected phone.
        1. If Phone display is locked or phone did not activate before connecting to Bluetooth, user must press "Play" button manually.
        2. Difference between iPhone and Android.

        →For some Android, auto-play is available if streaming is set once on H/U screen.

        Fig 2: Screen Display - Difference Between iPhone And Android
        G12832131Courtesy of KIA MOTORS AMERICA, INC.
  4. During Bluetooth call, cannot hear driver voice
    Defect Inspection Description
    Other end cannot hear driver's voice (1) Mic volume and Mute setting
    G12832132G12832133Courtesy of KIA MOTORS AMERICA, INC.KIA MOTORS AMERICA, INC.
    1. Check mic volume, mute settings
      1. Increase volume, uncheck mute setting
      2. If issue continues, check for any custom modification
        1. If modification is found, notify that it is not covered by warranty and test with genuine part
      3. If issue continues, check mic wiring connection status
      4. Replace mic and re-test
      5. Replace H/U and re-test
      Fig 3: Checking Mic Volume And Mute Settings
      G12832133Courtesy of KIA MOTORS AMERICA, INC.
    Driver cannot hear other end (1) Call volume
    G12832134Courtesy of KIA MOTORS AMERICA, INC.
    1. During a Bluetooth call, use volume knob to check volume
      1. If volume is set low, sound output is low or mute
    (2) Sound settings (Fader Control)
    G12832135Courtesy of KIA MOTORS AMERICA, INC.
    1. Sound is set to rear speaker only
      1. Call sound will be heard only from rear
      2. Set to default and re-test
  5. Call disconnect/Unable to download phonebook
    Defect Inspection Description
    Call disconnect (1) Phone and H/U connection
    1. Check phone compatibility
      1. Check compatibility list: Refer to 2. Pairing
      2. If phone is not listed, it is compatibility issue ↔ If listed, test using different phone
    2. Re-test using different phone
      1. Phone must be compatible with H/U
      2. If issue only occurs on certain phone ↔ If issue continues on different phone, replace H/U and retest
    Unable to download phonebook (1) Approve phonebook download from Android
    G12832136Courtesy of KIA MOTORS AMERICA, INC.
    (2) Contact information
    • Special characters
    • No phone number registered
    1. If name contains special characters, number not registered, or only in upper case
      1. Remove any special characters or upper case only names and re-test
        Fig 4: Screen Display - Contact Information
        G12832137Courtesy of KIA MOTORS AMERICA, INC.
  6. Voice recognition failure
    Defect Inspection Description
    Voice recognition failure (1) Contact information
    1. Check 3rd party Apps/Symbols in phone
      1. Contact information saved only in Facebook, Tweeter

        (Information not saved on local memory or SD card)

        Phone displays contact information but will not download contact

      2. Move contact information from 3rd party Apps and Symbols to phone or SD card and re-test (Synchronization)
      3. Send contact information using PC Sync, Cloud Sync, e-mail Sync
        Fig 5: Screen Display - 3rd Party Apps/Symbols And Contact Synchronization
        G12832138Courtesy of KIA MOTORS AMERICA, INC.
    2. If name contains special characters, number not registered, or only in upper case
      1. Remove any special characters or upper case only names and re-test
      Fig 6: Screen Display - Special Characters
      G12832139Courtesy of KIA MOTORS AMERICA, INC.
    Voice recognition failure - Does not recognize contact (2) Voice recognition test in vehicle settings
    1. Test voice recognition in vehicle settings
      1. Do not speak directly to the headlining area
        1. Mic is a sensitive part and optimized to speak at natural pose. If spoken directly at the mic can cause recognition failure
      2. Do not speak too loudly
        1. If spoken too loudly at the mic can trigger noise reduction logic and it may think user's voice as noise and limit volume
        Fig 7: Testing Voice Recognition In Vehicle Settings
        G12832140Courtesy of KIA MOTORS AMERICA, INC.
    1. Voice recognition test
      1. To increase recognition success rate, consider using full name
        1. If John Smith is registered on the phone, it is better to say "Call John Smith" than saying "Call John" only
      2. Use the same name registered on the phone
        1. H/U will not recognize different name stored on the phone. For example, saving mother as "Cindy" on the phone and use voice command mom or mother to call
        Fig 8: Screen Display - Voice Recognition Test
        G12832141Courtesy of KIA MOTORS AMERICA, INC.
    2. Wait at least 2 seconds after the "beep" sound before using voice command
      Fig 9: Screen Display - Wait At Least 2 Seconds After Beep Sound Before Using Voice Command
      G12832142Courtesy of KIA MOTORS AMERICA, INC.
  7. Call disconnects/Distortion
    Defect Inspection Description
    Call disconnects (1) Custom head unit Custom Head unit OEM Mic claims
    (CS/RS 36 claims in 2016, Italy)* Custom Head unit: DIO (Do It Ourselves - Aftermarket product)
    G12832143Courtesy of KIA MOTORS AMERICA, INC.
    1. Call sound quality, distortion using DIO H/U
      1. Check if customer is using DIO H/U
      2. Connect provide mic from DIO H/U and re-test
      3. If issue is resolved, it is compatibility issue with OEM mic. Connect mic provided from DIO H/U
      4. If issue continues replace genuine mic and re-test
      5. If issue continues replace H/U and re-test
    (2) IOS10 call issue Cause
    • Communication environment (ios10, Carrier)
    G12832144Courtesy of KIA MOTORS AMERICA, INC.
    1. Possibility of software issue - Perform software update (IQS18MY)
      • Do not replace mic if voice recognition is working
    2. Call quality may reduced during poor reception area
    3. For iPhone users, recommend using Carplay over Bluetooth
    4. For iPhone users, recommend using version iOS 9
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