Lost your 2005 Toyota Prius Key Fob or need to program a new one? Don’t worry, programming your key fob for a 2005 Toyota Prius can be done at home, saving you a trip to the dealership. This guide provides a straightforward, step-by-step process to program your 2005 Toyota Prius key fob, covering both the engine start/stop function and the keyless entry system.
Before you begin, it’s crucial to ensure you have the correct type of key fob. This programming procedure is specifically for original, working keys with a black logo on the back. If your current key has a chrome logo, this guide is not for you, and you may have purchased the wrong part. Also, if your original key is not functioning, dealer programming will likely be required.
Programming the Start/Stop Engine Function
This first part of the programming process will enable your new 2005 Toyota Prius key fob to start and stop the engine when inserted into the key port. Follow these instructions carefully:
- Enter your 2005 Toyota Prius, ensuring all doors are closed and unlocked. Verify that the car is completely turned off.
- Take your old, working key fob and insert it into the key slot. Immediately remove it. Repeat this insert and remove action four times in quick succession. On the fifth insertion, leave the old key fob in the slot.
- Open and then close the driver’s side door a total of six times. Make sure to fully open and close the door each time.
- Remove the old key fob from the slot. At this point, your 2005 Toyota Prius should be in key fob programming mode. You will notice the red anti-theft light on the dashboard remains illuminated.
- Now, insert your new 2005 Toyota Prius key fob into the slot and leave it there for a full minute. Keep an eye on the blinking red anti-theft light on your dashboard. Watch closely until the light stops flashing and turns off completely. This indicates that your new key fob is successfully programmed for the start/stop function.
- Remove the new key fob from the slot. The START/STOP engine programming portion is now complete.
Programming the Keyless Entry Function
Next, we will program the keyless entry function for your new 2005 Toyota Prius key fob. This procedure covers vehicles without the Smart Key System (SKS) functionality and black logo key fobs.
- Begin with the driver’s door open and no key fob inserted in the slot. Ensure all doors are unlocked.
- Take your old, working key fob and insert it into the key slot. Remove it twice within a 5-second timeframe. This needs to be done relatively quickly.
- Close and then open the driver’s door two times.
- Insert and remove the old key fob from the slot one time.
- Close and then open the driver’s door two more times.
- Insert the old key fob into the slot and leave it there. Close the driver’s door.
- Without pressing the brake pedal, press the power button on your Toyota Prius. Wait for one second, press the power button again, wait another second, and then press it a third time to turn the car back off. Do not start the engine; you are simply cycling the power.
- Remove the old key fob from the slot. Your 2005 Toyota Prius should now be in “add mode” for key fob programming.
- The car should automatically lock and then unlock the doors twice to confirm that it has entered the add mode successfully. This is your visual confirmation to proceed.
- Take your new 2005 Toyota Prius key fob. Press and hold both the lock and unlock buttons on the new fob simultaneously for about one and a half seconds.
- Within 3 seconds of releasing both buttons, press only the lock button on the new key fob.
- The car should respond by locking and unlocking the doors one time quickly to indicate successful programming of the new key fob’s keyless entry function. If the car responds with two lock/unlock cycles, it means the programming was unsuccessful. In this case, try the procedure again from the beginning. It’s also possible that the new key fob is faulty, or that the car has reached its maximum limit for programmed key fobs.
- To finalize and exit the programming mode, simply open and then close the driver’s door, or insert any key fob into the key slot.
By following these steps, you should have successfully programmed your new 2005 Toyota Prius key fob for both engine start/stop and keyless entry functionalities. Always double-check that both functions are working correctly after programming is complete. If you encounter issues, review each step carefully and try again. If problems persist, consulting a professional locksmith or Toyota dealership may be necessary.
