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:

Fastening the seat belt (for the third center seat)
Take the plate out of the holder, and then pull down the seat belt. Push plate “a” into buckle “a” until a click sound is heard. Push plate “b” into buckle “b” until a click sound is heard. ...