Toyota sequoia 2013 Owner's Manual page 652

5-2. Steps to take in an emergency
If you lose your keys
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. 32)
If you lose all your master keys.
■
You cannot make new keys; the whole engine immobilizer system must be
replaced.
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