Dealer can't flash ECM with new key

jonnyd42

New member
I have a 2000 4runner limited. My key is so worn out that it can't turn the ignition cylinder. I have one spare key that works (original), and I got 2x new ones cut but they need to be programmed. The new cut ones turn the cylinder perfectly but the car obviously won't start (starter turns) because of the immobilizer. So it's not the cylinder that's the issue.

Dropped the car off at the stealership to do the programming, and they called me saying they weren't able to do it. Apparently they have to flash the new key into the ECM's little database and when they attempt to do that it just says "connection lost" on their system.

My truck is in perfect working condition, 200k miles, always garaged, zero electrical issues. I find it really hard to believe that they can't do this. What options do I have here?
 
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Strange your key has an immobilizer. I got some toyota key blanks online, took em to the dealership with my VIN and had 4 new keys in under 20min. No programming, just cut and go. Didn't think our vehicles had immobilizers at all...
 
Strange your key has an immobilizer. I got some toyota key blanks online, took em to the dealership with my VIN and had 4 new keys in under 20min. No programming, just cut and go. Didn't think our vehicles had immobilizers at all...

Standard on Limiteds.
 
Dealer is full of chit.
My certified locksmith cut new key using VIN removed chip from old key installed in new key.
 
I have an '02 Sport Edition, which from my understanding is limited trim with some extras but maybe I'm wrong. Again, no immobilizer (which I honestly prefer, they're always such a hassle)
The Sports are an SR5 with an option package that included various different things through the years - but always wider flares (but not door cladding).

-Charlie
 

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