Lost your 2005 Toyota Prius key fob or need to program a new one? You’ve come to the right place. As experts at keyfobprog.com, we understand the frustration of key fob issues. This guide provides a straightforward, step-by-step procedure to program a genuine Toyota key fob for your 2005 Prius. It’s important to note that this method is specifically designed for brand new key fobs purchased from a Toyota dealer. Aftermarket fobs or used fobs from sources like eBay may not be fully compatible with these programming instructions, particularly for Smart Key System (SKS) functionality. This guide, often referred to as the “chicken dance,” is tailored for Gen II Prius models.
We’ve refined this procedure to be as clear and foolproof as possible. Follow these instructions carefully to program your 2005 Toyota Prius key fob successfully.
Understanding Your 2005 Toyota Prius Key Fob Options
Before you begin, it’s helpful to understand the different types of key fobs for your 2005 Prius. There are generally two main types, identifiable by their logo and functionality:
- Chrome Logo Key Fob: Typically associated with vehicles equipped with the Smart Key System (SKS). These fobs support remote locking/unlocking and smart key features like touch-to-open and push-button start.
- Black Logo Key Fob: Usually for Prius models without SKS. These fobs primarily offer remote locking/unlocking and standard ignition start functionality.
Regardless of the type, Procedure A is crucial as the initial step for programming any new genuine Toyota fob for basic engine start/stop functionality.
Programming Your 2005 Prius Key Fob: Step-by-Step Procedures
Here are the detailed programming procedures, broken down for clarity. Ensure you follow the correct procedure based on your key fob type and vehicle features.
Procedure A: Initial Programming – Start/Stop Function (For All New Fobs)
This procedure is essential for all new, genuine Toyota key fobs, whether they have a black or chrome logo. It programs the fob to start and stop the engine when inserted into the key port.
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Get inside your 2005 Prius, close all doors, unlock them, and ensure the car is completely turned off.
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Take your old, working key fob, insert it into the key slot, and remove it four times in a row. On the fifth insertion, leave the old fob in the slot.
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Open and close the driver’s side door six times.
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Remove the old key fob from the slot. At this point, your Prius should be in key fob programming mode. You’ll notice the red anti-theft light remaining illuminated (not flashing).
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Insert the new key fob into the slot and leave it there for one full minute. Keep an eye on the red anti-theft light on your dashboard. When the light stops flashing and turns off completely, the start/stop programming for your new fob is complete.
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Remove the new key fob. You have now finished the START/STOP programming.
- If your Prius has the Smart Key System (SKS) and you have a chrome logo fob, proceed to PROCEDURE B.
- If your Prius does NOT have SKS and you have a black logo fob, proceed to PROCEDURE C.
Procedure B: Programming Chrome Logo Key Fobs for SKS Functionality
This procedure is specifically for chrome logo key fobs on 2005 Prius vehicles equipped with the Smart Key System (SKS). It enables remote lock/unlock and smart key functionality.
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Open the driver’s side door and leave it open. Ensure all doors are unlocked and no key fob is in the slot. Complete the next step within 5 seconds.
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Insert your old, working key fob into the key slot and remove it twice. Complete steps 3 and 4 within 40 seconds of this step.
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Close and open the driver’s side door twice.
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Insert and remove your old key fob once. Complete steps 5 through 8 within 40 seconds of this step.
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Close and open the driver’s side door twice again.
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Insert your old key fob into the key slot and close the driver’s door.
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Without pressing the brake pedal, press the power button once, wait a second, press it again, wait another second, and press it a third time to turn the car off.
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Remove the old key fob from the slot. Your Prius should now be in “add mode.” Within 3 seconds, the car should cycle the door locks (lock and unlock) to confirm it’s in add mode. The number of lock/unlock cycles might vary slightly depending on the exact 2005 Prius model, but it should cycle at least once. If the locks do not cycle, return to step 1 and repeat Procedure B. If the locks cycle, proceed to step 9.
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Programming the New Fob: Complete steps 9a, 9b, and 9c within 40 seconds of completing step 8.
9a. Press and hold the Lock and Unlock buttons simultaneously on your OLD/MASTER key fob. Hold for a couple of seconds. The door locks should cycle once. If this doesn’t happen, it’s likely due to a weak CR 2032 battery in your old fob. Replace the battery and try again.
9b. Immediately after step 9a, press and hold the Lock and Unlock buttons simultaneously on your NEW key fob. Hold for about 1.5 seconds. Some users have reported needing to repeat this step twice for successful programming. If it doesn’t work the first time, try executing this step twice.
9c. Within three seconds of step 9b, press the Lock button on your NEW key fob. If programming is successful, the door locks will cycle once to indicate confirmation. Be patient; the lock/unlock cycle might take a few moments. If you wait for more than a minute and get no cycle, proceed to step 10 and test if the SKS functions of your new fob are working. If they are, report your experience!
9d. If you need to program another new key fob, repeat steps 9a, 9b, and 9c for each additional new fob. If you are finished programming fobs, proceed to step 10.
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End Programming Mode: To exit programming mode, simply open and then close the driver’s door, or insert any key fob into the key slot.
Procedure C: Programming Black Logo Key Fobs for Non-SKS Vehicles
This procedure is for black logo key fobs on 2005 Prius models that do not have the Smart Key System (SKS). It programs the fob for remote lock/unlock functionality.
- Open the driver’s door and ensure all doors are unlocked and no key fob is in the slot.
- Insert your old, working key fob into the key slot and remove it twice within 5 seconds.
- Close and open the driver’s side door twice.
- Insert and remove your old key fob once.
- Close and open the driver’s side door twice again.
- Insert your old key fob into the key slot and close the driver’s door.
- Without pressing the brake pedal, press the power button once, wait a second, press it again, wait another second, and press it a third time to turn the car off.
- Remove the old key fob from the slot. Your Prius should now be in “add mode.”
- Verification: The car should lock and unlock the doors twice to confirm it is in add mode.
- Programming the New Fob: Press and hold both buttons (Lock and Unlock) on the new key fob simultaneously for about 1.5 seconds.
- Within 3 seconds, press just the Lock button on the new key fob.
- Verification: The car should respond with one quick lock/unlock cycle to confirm successful programming of the new fob. If the car responds with two lock/unlock cycles, it indicates programming failure. In this case, try the procedure again, ensure your fob is a genuine Toyota fob and in good condition, or consider that you may have reached the maximum number of fobs programmed to your vehicle.
- End Programming Mode: To exit programming mode, open and then close the driver’s door, or insert any key fob into the slot.
Important Part Numbers:
- OEM Fob Part # for Smart Access (SKS): 89994-47061
- OEM Fob Part # for Non-Smart Access (Non-SKS): 89070-47180
Pro Tip: It’s highly recommended to practice these steps as a “dry run” before actually programming your new fob. This will help you become familiar with the sequence and timing, increasing your chances of successful programming on the first attempt.
By following these procedures carefully, you should be able to program your new 2005 Toyota Prius key fob yourself. Remember to always use genuine Toyota fobs for optimal performance and to ensure compatibility with these programming steps. If you encounter any difficulties, consider consulting your local Toyota dealer for assistance.
