Toyota Highlander Service Manual: Door control transmitter

Transmitter battery

REPLACEMENT 1. REMOVE TRANSMITTER BATTERY NOTICE: Special caution should be taken when handling each component as they are precise electronic components. (a) Using a coin or equivalent, open ...

Replacement

1. REGISTRATION OF RECOGNITION CODE HINT: The add mode is used to register a new recognition codes while still retaining codes already registered. This mode is used to add a new transmitter. ...

More about Toyota Highlander:

Inspection
1. INSPECT POWER WINDOW REGULATOR SWITCH ASSY (a) Check continuity.  Check the continuity between the terminals when battery voltage is applied to terminals 1 and 8. Standard: If the continuity is not as specified, replace the switch. ...