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:

Wireless remote control/ electronic key battery
Replace the battery with a new one if it is depleted. You will need the following items: Flathead screwdriver  small flathead screwdriver  lithium battery cr2016 (vehicles without a smart key system), or cr2032 (vehicles with a smart key system) Replacing the battery Vehi ...