Losing or needing a replacement 2009 Toyota Prius Key Fob doesn’t have to mean an expensive dealership visit. If you possess an original, working key fob with a black logo on the back, you can program a new one yourself. This step-by-step guide will walk you through programming your 2009 Prius key fob for both engine start/stop and convenient keyless entry functionalities. Save time and money by handling your Toyota Prius key programming at home.
Prerequisites for 2009 Prius Key Fob Programming
Before starting, ensure these crucial points are met for successful key fob programming:
- Working Original Key is Essential: You MUST have an existing, functional key fob with a black logo. Keys with chrome logos are incompatible with this procedure.
- Dealer Programming if Original Key is Non-Functional: If your original Prius key fob is not working, this DIY method will not work. Professional dealer programming will be necessary.
- Specific to 2009 Toyota Prius: This guide is tailored for the 2009 Toyota Prius model. Procedures can differ for other model years.
STEP 1: Programming the Engine Start/Stop Function
This section focuses on programming the new 2009 Toyota Prius key fob to start and stop the engine when inserted into the key slot.
- Vehicle Preparation: Enter your 2009 Toyota Prius, close and unlock all doors, and ensure the vehicle is completely turned off.
- Rapid Old Fob Insertion/Removal: Quickly insert your existing working key fob into the key slot and remove it four times consecutively.
- Insert and Hold Old Fob: Insert the old fob a fifth time and leave it in the slot.
- Driver Door Cycling: Open and close the driver’s door six times.
- Remove Old Fob (Enter Programming Mode): Take out the old fob. Your Prius should now be in key fob programming mode, indicated by a steady red anti-theft light on the dashboard.
- New Fob Programming: Insert the new 2009 Toyota Prius key fob into the slot and leave it for one full minute. Observe the anti-theft light; it will stop flashing and turn off when programming is complete.
- Start/Stop Programming Completion: Remove the new fob. Programming for the engine START/STOP function is now finished.
STEP 2: Programming the Keyless Entry Function
Follow these steps to program the keyless entry (remote lock/unlock) on your new 2009 Toyota Prius key fob. These instructions are for black logo key fobs on vehicles without the Smart Key System (SKS).
- Open Driver Door, No Fob in Slot: Ensure the driver’s door is open, no fob is in the ignition slot, and all doors are unlocked.
- Old Fob Insert/Remove (Twice): Insert your old fob into the slot and remove it twice within a 5-second timeframe.
- Door Open/Close Cycle (Twice): Close and then open the driver’s door two times.
- Old Fob Insert/Remove (Once): Insert and remove the old fob from the slot one time.
- Door Open/Close Cycle (Again): Close and open the driver’s door two more times.
- Insert and Leave Old Fob (Door Closed): Insert the old fob into the slot, and then close the driver’s door.
- Accessory Mode (Power Button Only): Without pressing the brake pedal, press the power button three times in succession (press, wait, press, wait, press) to cycle to accessory mode and back off.
- Remove Old Fob (Add Mode Activated): Remove the old fob. Your Prius should be in “add mode” for key fobs now.
- Add Mode Verification (Lock/Unlock Cycle): The car should automatically lock and unlock its doors twice to confirm entry into add mode.
- New Fob Button Press (Simultaneous): On your new 2009 Toyota Prius key fob, press and hold both the lock and unlock buttons at the same time for about 1.5 seconds.
- New Fob Lock Button Press (Single): Within 3 seconds of step 10, press only the lock button on the new fob.
- Programming Confirmation (Lock/Unlock Response): The car should respond with a single lock/unlock cycle to confirm successful programming of the replacement key fob. Two lock/unlock cycles indicate failure; retry the steps.
- Exit Programming Sequence: To finish the programming process, simply open and then close the driver’s door, or insert any key fob into the slot.
Conclusion
Programming a new key fob for your 2009 Toyota Prius is achievable at home by following these steps, provided you have a working original black logo key. If you encounter difficulties or lack a working original key, seeking assistance from a Toyota dealership or a certified automotive locksmith for professional Prius key fob programming is recommended. Enjoy the convenience of your newly programmed 2009 Toyota Prius key fob.
