I must be doing something wrong. I keep reading through the instructions but can't see what I'm missing.
These are the instructions I'm following:
1. Take the new key and one master key that can start your 4runner (old key) into the 4runner with you and close the driver's door.(immobilizer light should be blinking)
2. Insert old key, remove old key, Insert old key, remove old key,
Insert old key, remove old key, Insert old key, remove old key,
Insert old key (immobilizer light should be off from the first insertion)
3. open and close driver's door six times (immobilizer light should be off)
Step 2 and 3 need to be done in less than 35 seconds.
4.remove the old key. immobilizer light should come on (steady on, not blinking)
5. insert the new key (immobilizer light should be blinking)
Then just sit there and wait, after about one minute the blinking immobilizer light should go off and you're done.