2007 Sequoia All Keys Lost (or Valet Key Only) (or FOB / FOB Programming)

If you have a 2007 Toyota Sequoia in an: (a) All keys lost, or (b) Valet key only scenario....then you have a problem. I bought mine with one Valet key and one working FOB.

A Toyota dealership quoted me over $900 to solve the key problem (only); they didn't even look at the key FOBs. Out of principle--No. I took the problem to a number of first-rate automotive locksmiths, and it stumped them too. The core of the problem is Toyota, their immobilizer box, and their low-current chipset used in said immobilizer box.

This video details how I solved this problem. In short, I ended up buying Toyota part # 89780-34010 Control Module, which is the low-current immobilizer box behind the instrument cluster. I bought it new, because this was the cheaper option than trying to salvage the existing immobilizer box. (Since this is a low-current chipset, the data can get scrambled easily.). I then installed it, programmed the keys myself, and then jumped two OBD2 pins to pair the new immobilizer box with the car's computer.

But that's only have the problem! I still had only 1 FOB. After a lot of reading, I learned that some 2007 Sequoias have Toyota key fobs, and some 2007 Sequoias have "Port Installed" or "Dealer Installed" key fobs. They are NOT the same, and they are NOT interchangeable. So after realizing that I needed to find FOBS designated with "ELVATDD" on the back of the FOB itself. You can buy "original" used replacements for over $70 dollars online, or by eBay clones for $11. The eBay clones work fine--search for "Toyota Sequoia Rav4 4Runner Upgraded Keyless Remote Key Fob ELVATDD/ T1B".

It's been a journey. At times, I was distraught--if not in despair. Special thanks to Sam the Locksmith ... He took time out to help me understand the problem, and to set me on the right path. He is now my goto automotive locksmith, even though he's 6 hours away... You can find him at   / samthelocksmith