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:

Smart key system
The following operations can be performed simply by carrying the electronic key on your person, for example in your pocket. The driver should always carry the electronic key. Locking and unlocking the doors Opening the back door Opening the glass hatch  Starting the engine A ...