Program Spare Key on Toyota Prius | Immobilizer & Smart Key DIY Guide

Need to program a spare key for your Toyota Prius? Whether you’ve lost a key or just want a backup, this video walks you through the step-by-step process to program a new immobilizer key or smart key — all without a trip to the dealership. I’ll explain how to program both standard Prius keys (with immobilizer chips) and smart key fobs (with push-button start), using simple DIY methods that work for most Prius models from Gen 2 to Gen 4. You'll also learn what tools you may need, how to put the car into programming mode, and what to do if your key isn't recognized. 🔑 Works on many Toyota Prius models including: Gen 2 (2004–2009) Gen 3 (2010–2015) Gen 4 (2016–2022) 💡 Save money and time by programming it yourself! ✅ Subscribe for more Toyota tutorials, Prius maintenance tips, and car tech DIYs every week. Got questions about key programming? Drop them in the comments — I’m here to help!