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:

Replacement
HINT: Installation is in the reverse order of removal. 1. PRECAUTION (SEE PAGE 60-1 ) 2. DISCONNECT BATTERY NEGATIVE TERMINAL (SEE PAGE 60-1 ) 3. REMOVE STEERING WHEEL COVER LOWER NO.3 (a) Using a screwdriver, remove the steering wheel cover lower No.3. HINT: Tape up the screwdriver tip ...