Program Your 2002 Toyota 4Runner Key Fob: A Step-by-Step Guide

Is your 2002 Toyota 4Runner key fob no longer working, or did you recently purchase a replacement remote? No need to rush to a dealership and pay hefty programming fees. You can easily program your keyless entry remote right in your driveway. This guide provides simple, step-by-step instructions to program your 2002 4runner Key Fob yourself, saving you time and money. Follow these directions carefully to regain keyless entry functionality for your vehicle.

Step-by-Step Programming Guide for Your 2002 4Runner Key Fob

This process will guide you through each action needed to program your 2002 4Runner key fob. Ensure you follow each step precisely for successful programming.

Step 1: Initial Conditions

Before you begin the programming sequence, make sure your 2002 4Runner is in the correct starting state:

• You should be inside your 4Runner.
• Ensure the key is removed from the ignition.
• The driver’s side door must be open.
• Verify that only the driver’s door is unlocked. The status of other door locks doesn’t matter at this stage.

Step 2: Key Insertion Sequence

This step is crucial and needs to be performed correctly to initiate the programming sequence.

1. Insert your key into the ignition switch.
2. Immediately remove the key from the ignition. Do not turn the key on, simply insert and remove it.

Step 3: Power Lock Cycle – First Sequence

This step involves cycling the power locks and opening/closing the driver’s door in a timed manner.

1. Within 40 seconds of completing Step 2, cycle the power door locks five times using the power lock switch on the driver’s door panel. Maintain a consistent and relatively fast pace for these cycles.
2. Immediately after the fifth lock cycle, close and then open the driver’s side door.

Step 4: Power Lock Cycle and Ignition Sequence

This is the second power lock cycle sequence combined with specific ignition switch actions.

1. Within 40 seconds of completing Step 3, cycle the power door locks five times again, using the same pace as in Step 3.
2. Next, turn the ignition key to the ON position, and then immediately turn it back to the OFF position.
3. Repeat the previous step one more time: turn the ignition to ON and then back to OFF again.
4. Finally, remove the key from the ignition.

Step 5: Programming Mode Confirmation

This step confirms whether you have successfully entered the programming mode.

1. Within 3 seconds after removing the key in Step 4, listen for the power door locks to cycle automatically. The locks should cycle once (lock and then unlock).
2. This automatic lock cycle indicates that your 2002 4Runner has successfully entered the key fob programming mode.
3. If the door locks do not cycle at this point, it means you have not entered programming mode. Return to Step 1 and repeat the entire process from the beginning, ensuring each step is performed accurately and within the given time limits.

Step 6: Transmitter Programming

This is where you program each key fob transmitter to your 2002 4Runner.

1. Within 40 seconds of confirming entry into programming mode (Step 5), take the first key fob transmitter you wish to program.
2. Press and hold both the LOCK and UNLOCK buttons on the transmitter simultaneously for approximately 1 second.
3. Immediately after releasing both buttons, press and hold the LOCK button by itself for 2 seconds.
4. Within 3 seconds of performing the previous substep, the door locks should cycle once (LOCK then UNLOCK). This single cycle indicates successful programming of that transmitter.
5. If the door locks do not cycle, or if they cycle twice, it means the remote was not accepted. Repeat substeps 6a and 6b for this specific remote.
6. Repeat substeps 6a and 6b for every key fob transmitter you need to program, including any existing remotes you want to continue using. You must reprogram all remotes at the same time.

Step 7: Finalizing the Programming

This is the final step to exit programming mode.

1. Simply close the driver’s side door. This action will take your 2002 4Runner out of programming mode.
2. Test each programmed key fob to ensure it is working correctly with your vehicle’s keyless entry system.

By following these steps, you should be able to successfully program your 2002 Toyota 4Runner key fob and regain full keyless entry functionality. If you encounter any issues, double-check each step and ensure you are within the time limits specified.