Is your 2004 Lexus RX330 key fob malfunctioning, or did you purchase a new key fob and need to program it? You’re in the right place. Programming your Lexus RX330 key fob yourself can save you time and money compared to dealership services. This guide provides straightforward procedures for programming both the transponder chip and the remote functions of your 2004 Lexus RX330 key fob.
Programming the Transponder Chip
This procedure will allow your Lexus RX330 to recognize the new key and start the engine. Follow these steps carefully:
- Ensure all doors are closed. This is crucial for initiating the programming sequence.
- Insert your master Toyota key into the ignition cylinder and remove it four times. On the fifth insertion, leave the master key in the ignition cylinder.
- Open and close the driver’s side door six times. Ensure a full open and close motion each time.
- Remove the master key from the ignition cylinder.
- Observe the security light on your information display. It should be illuminated solid, indicating that your Lexus RX330 has successfully entered programming mode for the transponder chip.
- Insert the new, unprogrammed chip key into the ignition cylinder.
- Wait and watch the security light. It will begin blinking for approximately 60 seconds.
- Programming completion: When the security light turns off completely, the new key’s transponder chip has been successfully programmed to your 2004 Lexus RX330.
- Remove the newly programmed key from the ignition cylinder.
- Verification: Insert the newly programmed key into the ignition cylinder. The security indicator light on the information display should disappear, confirming that the anti-theft system is deactivated and the key is properly programmed.
Programming the Remote Function
Once the transponder chip is programmed, you’ll need to program the remote control functions (lock, unlock, etc.). Use this procedure:
- Start with the key removed from the ignition. Ensure the driver’s door is unlocked and open, and all other doors are closed.
- Key Insertion Sequence (within 5 seconds): Insert the key into the ignition (do not turn) and pull it out. Repeat this insert and remove action once more, for a total of two cycles.
- Door Open/Close Sequence (within 40 seconds): Close and then open the driver’s door. Repeat this close and open action once more, for a total of two cycles. Insert the key into the ignition (do not turn) and pull it out.
- Final Door/Ignition Sequence (within 40 seconds): Close and then open the driver’s door twice (two cycles of close and open). Insert the key into the ignition and leave it in. Close the driver’s door. Turn the ignition to the “ON” position, then immediately back to the “OFF” position (do not start the engine). Remove the key from the ignition.
- Confirmation of Programming Mode (within 3 seconds): The power door locks should automatically lock and then unlock. This indicates that your Lexus RX330 has entered remote programming mode. If the locks do not cycle, return to step 1 and repeat the procedure.
- Remote Programming (within 40 seconds):
- A. Press and hold both the “lock” and “unlock” buttons on the remote simultaneously for 1.5 seconds.
- B. Immediately after releasing both buttons, press and hold only the “lock” button. Within 10 seconds, the door locks should cycle once (lock then unlock), indicating successful programming of that remote. If the door locks cycle twice, it indicates the remote was not accepted. In this case, repeat steps A and B in step 6.
- Repeat steps A and B in step 6 for each additional remote you wish to program, up to a maximum number of remotes allowed by your vehicle’s system.
- Exit Programming Mode: Open the driver’s door. This action will exit the remote programming mode.
By following these procedures, you should be able to successfully program your 2004 Lexus RX330 key fob. Enjoy the convenience of your newly programmed key!
