Keyless Entry Transmitter: Testing and Inspection

2008 Acura MDX V6-3.7LSECTION Testing and Inspection
Keyless Transmitter Programming/Deleting - Manual Method

NOTE: The keyless transmitter attaches to the ignition key and is separate from the immobilizer transponder. It is not necessary to use the HDS when replacing or deleting an existing keyless transmitter.

- Adding a key (transponder) can only be done with the HDS. If the key being added has a new remote transmitter, it can be programmed with the HDS at the end of the "ADD A KEY" function.
- If one or all keys (transponders) are lost, the remote transmitters must be deleted manually. This will assure that all of the old keyless transmitters have been cleared from the immobilizer/keyless control units memory.
- When replacing the immobilizer keyless control unit, you must have all of the remote transmitters that need to be programmed to the car.
- The immobilizer keyless control unit can only store 5 keyless transmitter.
- During programming, pushing the transmitters button more than once may push other remotes out of the memory. In other words, pushing the same remotes button 5 times will delete all other remotes.

Adding a remote transmitter

Turn the ignition switch ON (II) and push the transmitter's lock or unlock button within 4 seconds, turn the ignition switch to LOCK (0), turn it back ON (II) within 4 seconds and back to LOCK (0). Repeat this 2 more times and the locks should cycle when the button is pushed. Turn the ignition switch to LOCK (0) and remove the key. Wait 10 seconds and verify that all remotes function properly.

Adding multiple remote transmitters

Turn the ignition switch ON (II) and within 4 seconds push the lock or unlock button within 4 seconds and turn it to LOCK (0), turn it back ON (II) within 4 seconds and back to LOCK (0). Repeat this 2 more times and the locks should cycle when the button is pushed. Push the lock or unlock button on each remote to be programmed within 4 seconds of each other. Turn the ignition key to LOCK (0) and remove the key. Wait 10 seconds and verify that all remotes being programmed are functioning properly.

Deleting remotes

Turn the ignition switch ON (II) and push the transmitter's lock or unlock button within 4 seconds and turn it to LOCK (0), turn it back ON (II) and push the transmitter's lock or unlock button within 4 seconds and turn the ignition switch back to LOCK (0). Repeat this 2 more times and the locks should cycle when the button is pushed. Push the same button 5 more times. This will leave only the current remote programmed.
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When to See a Mechanic

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

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