Toyota Lexusc Owner's Handbook Manual page 386

Replace the battery according to the following procedure:
NOTICE
D Be sure that the positive side of the controller battery
is facing correctly.
D Do not replace the battery with wet hands. Water may
cause rust.
D Do not touch or move any components inside of the
controller, or it may interfere with proper operation.
D Be careful not to bend the electrode of the controller
battery insertion and that dust or oil does not adhere
to the transmitter case.
D Close the battery case securely.
1. Remove the cover of the controller as shown.
2. Remove the discharged batteries and put in new batteries
as shown. Install the cover.
AUDIO
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