LS 460 RWD V8-4.6L (1UR-FSE) (2010)
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If the switches are held for 10 seconds or more after the transmitter codes have been erased, default codes will be set to the
switches of the garage door opener. Using these default codes, operation of the garage door opener can be checked using a tester.
(d) Low power mode:
(1) If the garage door opener switch is held for 75 seconds or more, the garage door opener will enter low power mode to economize power
consumption. When the garage door opener has entered low power mode, the LED turns off.