DIY Lexus/Toyota Key Programming — Spare Key for $28 | Full Guide

Need a spare Toyota or Lexus key but don’t want to pay dealer prices? In this comprehensive guide I show *two practical ways* to add a spare key for modern Toyota/Lexus vehicles — using my 2017 RX350 as an example: *Two approaches covered* 1. *Full key generation + programming (Autel KM100)* — generate a universal blank, write the transponder, then register (OBD add) it to the car. This is what a locksmith does, and it’s repeatable if you buy the tool. 2. *Key matching (OBD pairing) with an unlocked OEM key* — buy an unlocked OEM key online, then pair/register it to the vehicle using a general-purpose OBDII scanner (MUCAR 892BT, XTool D7, Kingbolen K6 Pro, etc.). Cheapest practical route if you already own or have access to a scanner. What you’ll learn: How to read OEM vs blank keys and verify chip/FCC (so you buy the right blank) How to generate an Autel universal key and re-read it to show it now matches the OEM profile The KM100 OBD add-key flow and what it can and cannot do (no all-keys-lost IMMO resets) How to use an unlocked OEM key + OBD scanner to pair a key—real-world demo with MUCAR 892BT Pros, cons, and true cost comparison: dealer or locksmith vs DIY vs hybrid Chapters: 0:00 – Intro: 3 Ways to Get a Spare Key 1:05 – Safety: Keep Battery Charged 2:05 – Reading Keys with KM100 3:05 – Generating Universal Key 5:05 – Registering Key via OBD (KM100) 7:00 – Testing Autel Key 7:50 – Hybrid Approach: Unlocked OEM Key 9:00 – Tools That Can Register Keys 10:05 – Registering with MUCAR Demo 12:10 – Testing Registered OEM Key 13:00 – Recap: 3 Options for Spare Keys 14:50 – Cost Comparison & Recommendations 15:50 – Warnings & Tips 16:30 – Closing & Outro --- 🛠️ Products & Purchase Links *Programming tools* *Autel KM100* Key Programmer: https://amzn.to/4nLALQi **MUCAR 892BT**: https://amzn.to/46A4jtk, code "2J7PH8AT" for $499 **XTool D7**: https://amzn.to/4gJ3HX0 **Kingbolen K6 Pro**: https://amzn.to/48tXs74 *Kingbolen K8* Key Programmer: https://amzn.to/4nGOQ1f Compatible Keys: Unlocked Lexus OEM Key (via OBDII): https://ebay.us/YjEDpN Autel ID8A Universal Blank (program with KM100): https://amzn.to/4nf0h0l As an Amazon Affiliate and eBay Partner, we may get compensated if you make a purchase. Appreciate it! *Notes on links / buying* When buying a blank or unlocked OEM key: confirm *chip type (ID46 / ID8A / Hitag2, etc.)* and *FCC ID* for your region before purchase. If a seller doesn’t state “unlocked/writable” for transponder blanks, ask them. 🔍 Search keywords / tags add spare lexus key add spare toyota key lexus key programming diy toyota key programming diy autel km100 tutorial mucar 892bt key pairing xtool key programming how to program toyota key how to program lexus key buy unlocked lexus key ebay universal key blank km100 diy spare car key cheap