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

...

More about Toyota Highlander:

Precaution
CAUTION: Before working on the fuel system, disconnect the negative (-) terminal cable from the battery. Do not smoke or be near an open flame when working on the fuel system. Keep gasoline away from rubber or leather parts. 1. DISCHARGE FUEL SYSTEM PRESSURE CAUTION: Do not disconnect an ...