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post #1 of 2 (permalink) Old 04-07-2007, 04:43 PM Thread Starter
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Just returned from 5mos travel, left my 2005 Prius at home and have misplaced both smart keys somewhere in the house, been 3 days of intensive searching, no luck. I know, it's hard to believe, but true. Dealer says I have to trailer the Prius (90mi) to them where new keys and receiver on car can be coded/programed, approx tab 1K. Anyone know what kind of signal the smart key sends and is there a portable receiver/detector which might help me locate the keys in the house.? Smart keys but defective owner.
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post #2 of 2 (permalink) Old 04-07-2007, 04:56 PM
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Actually the fob responds to the Prius calling for it. The prius has several low power oscillators strategically placed. Depending where the fob is in relation to the car, the signal from some of the oscillators may not reach the fob. For example, when you press the black button on the driver door, first the room oscillator and then the cargo interior oscillator calls the fob. If the fob responds, it is in the car. If the fob is outside the door below the window level, the room oscillator can't reach the fob. So then the car tries the door at which you pressed the button. If the fob responds, then the fob is at the outside of that door, and the doors lock.

Anyway, the dealer does NOT have to replace the immobilizer. All you need to purchase is replacement fob(s), then the dealer can do a reset on the immobilizer using their THHT. The tool will present a code that the dealer has to enter into the technical website, then a seed code is returned to the dealer, which is entered into their tool. System is then reset, and the car can then be programmed to accept the new fobs.
The website will ask the dealer for a bunch of information for security reasons, including the dealer's ID. The dealer will need to see your proof of ownership, which is usually a title and/or registration, and probably your driver's license as well.

If you need any more information or proof of this, PM Galaxee.
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