2009 Toyota 4Runner Owners Manual - Page 479

5 -2 . St e ps t o t a k e in a n e m e rge nc y I f you lose your ke ys New genuine Toyota keys can be made by your Toyota dealer using one of the master keys and the key number stamped on your key number plate. (→P. 28) n If you lose all your master keys. You cannot make new keys; the whole engine immobilizer system must be replaced. 458