<h1>Programming Procedure for 2005 Acura MDX Remote Keyless Entry Fob</h1> <p><font size="3"><b>Important:</b> The 2005 Acura MDX supports onboard programming. The following procedure allows you to manually program remote fobs without special tools. </font></p> <p><font size="3"><b>Step-by-Step Programming Instructions:</b> </font></p> <ul> <li><font size="3">Step 1: Ensure all doors are unlocked and remain that way throughout the procedure. </font></li> <li><font size="3">Step 2: Insert the key into the ignition and turn it to the ON (II) position. Do not start the engine. </font></li> <li><font size="3">Step 3: Press and release the LOCK button on the remote you want to program. </font></li> <li><font size="3">Step 4: Turn the ignition to the OFF (I) position. Keep the key in the ignition. </font></li> <li><font size="3">Step 5: Turn the ignition back to the ON (II) position. </font></li> <li><font size="3">Step 6: Press the UNLOCK button on the same remote. </font></li> <li><font size="3">Step 7: Turn the ignition to the OFF (I) position again. </font></li> <li><font size="3">Step 8: Turn the ignition to the ON (II) position once more. </font></li> <li><font size="3">Step 9: Press the LOCK button again on the same remote. </font></li> <li><font size="3">Step 10: Turn the ignition to the OFF (I) position. </font></li> <li><font size="3">Step 11: Turn the ignition to the ON (II) position for the final time. </font></li> <li><font size="3">Step 12: Press and release the LOCK button. If successful, the door locks will cycle, indicating the vehicle is in programming mode. </font></li> <li><font size="3">Step 13: Press the LOCK button on every remote you wish to program (including the one just used). The locks will cycle after each remote is accepted. </font></li> <li><font size="3">Step 14: Turn the ignition to the OFF (I) position and remove the key to exit programming mode. </font></li> <li><font size="3">Step 15: Test all remotes to confirm proper functionality.</font></li> </ul>
