Toyota Highlander Service Manual: Sliding roof/convertible

Engine immobilizer system

REGISTRATION 1. DESCRIPTION OF CODE REGISTRATION (a) When adding master keys and sub-keys (additional registration).  Register the key code (immobilizer code) in the transponder key ECU. ...

Sliding roof system

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More about Toyota Highlander:

If the engine will not start
If the engine will not start even though correct starting procedures are being followed , Consider each of the following points: The engine will not start even though the starter motor operates normally. One of the following may be the cause of the problem:  there may not be sufficient ...