2003 Honda Odyssey

2003 Honda Odyssey – Keyless Entry Remote Fob Programming Instructions

EX Model with Factory Installed Keyless Entry System

Important Notes: The factory keyless entry system can store up to three remotes. Remotes are saved in a stacked memory system—if a fourth remote is programmed, the first one will be erased. Ensure the remote is aimed at the receiver located near the glove box. Each step must be completed within 4 seconds to avoid exiting programming mode.

Programming Procedure (EX Model)

  • Step 1: Insert the key into the ignition and turn it to the ON (II) position. Do not start the engine.
  • Step 2: Within 4 seconds, press the LOCK or UNLOCK button on your remote. Make sure the remote is aimed directly at the glove box area.
  • Step 3: Turn the ignition switch to the LOCK (0) position.
  • Step 4: Repeat Steps 1–3 two more times, using the same remote. This means a total of three ignition cycles.
  • Step 5: After completing the third cycle, turn the ignition back to the ON (II) position.
  • Step 6: Within 4 seconds, press the LOCK or UNLOCK button on the same remote again. The door locks should cycle (lock then unlock) to confirm that the vehicle is now in programming mode. Press the button once more to store the remote.
  • Step 7: For each additional remote, press the LOCK or UNLOCK button. The door locks should cycle again to confirm each one has been accepted.
  • Step 8: When all remotes have been programmed, turn the ignition to LOCK (0) to exit programming mode.
  • Step 9: Test all remotes to verify that they function correctly.

LX Model with Dealer Installed Keyless Entry System

Important Notes: Entering programming mode erases all previously stored remotes. You must program all remotes during the same session. Each step must be completed within 5 seconds to avoid timing out of programming mode.

Programming Procedure (LX Model)

  • Step 1: Insert the key and turn the ignition to the ON (II) position.
  • Step 2: Press the LOCK or UNLOCK button on one remote. An unprogrammed remote can be used for this.
  • Step 3: Turn the ignition to the LOCK (0) position.
  • Step 4: Repeat Steps 1–3 two more times using the same remote.
  • Step 5: After the third cycle, turn the ignition to ON (II) again.
  • Step 6: Press the LOCK or UNLOCK button once more on the same remote. The door locks should cycle to confirm entry into programming mode.
  • Step 7: Press the LOCK or UNLOCK button on each remote you wish to program. The door locks will cycle after each accepted remote.
  • Step 8: Turn the ignition to LOCK (0) to complete the programming process.
  • Step 9: Test each remote to ensure it is functioning properly.