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HOMESERVICE MANUALSACURA2007TSX AUTOMATICREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTENTERTAINMENT SYSTEMSAUDIO SYSTEMSELF-DIAGNOSTIC FUNCTIONSERIAL NUMBER DISPLAY MODE
2007 Acura TSX Automatic

Serial Number Display Mode

2007 Acura TSX AutomaticSECTION Serial Number Display Mode

To obtain the audio unit serial number on a vehicle, do the following:

NOTE: This procedure can only be performed when the battery power is disconnected from the audio unit and the audio unit displays "CODE."
  1. Turn the ignition switch ON (II).
  2. With the audio unit turned off, push and hold the "SEEK SKIP" (A) and "CH DISC" (B) buttons. While holding the buttons, push the "VOL push PWR" knob (C) to ON.
    Fig 1: Locating Audio Unit Buttons
    G05489190Courtesy of AMERICAN HONDA MOTOR CO., INC.
  3. The sub-display will show a U and a 4 digit number (A) (example U1234). These are the first four digits of the serial number. The display then changes to a L and a 4 digit number (B) (example U5678). These are the last 4 digits of the serial number.
    Fig 2: Identifying Audio Unit Screen Display Serial Number
    G05489191Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. Use all 8 numbers as the serial number when using the Interactive Network (iN) system to retrieve the 5 digit anti-theft code.
  5. The serial number display mode ends when you turn the audio unit off, or turn the ignition switch to LOCK (0).


To obtain the audio unit serial number on a vehicle, do the following:

NOTE: This procedure can only be performed when the battery power is disconnected from the audio unit and the audio unit displays "CODE."
  1. Turn the ignition switch ON (II).
  2. With the audio unit turned off, push and hold the "No. 1" (A) and "No. 6" (B) buttons. While holding the buttons, push the "VOL push PWR" knob (C) to ON.
    Fig 1: Locating Audio Unit Buttons
    G05489194Courtesy of AMERICAN HONDA MOTOR CO., INC.
  3. The display will show a U and a 4 digit number (A) (example U1234). These are the first four digits of the serial number. The display then changes to a L and a 4 digit number (B) (example U5678). These are the last 4 digits of the serial number.
    Fig 2: Identifying Audio Unit Screen Display Serial Number
    G05489195Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. Use all 8 numbers as the serial number when using the Interactive Network (iN) system to retrieve the 5 digit anti-theft code.
  5. The serial number display mode ends when you turn the audio unit off, or turn the ignition switch to LOCK (0).
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.