Lexus GS300 1998 Owner's Manual page 33

KEYS AND DOORS
changed. Ask your Lexus dealer for details.
20
At this time, two beeps sound.* Together with the activation
of unlocking, the interior light comes on for 15 seconds if the
interior light switch is in "DOOR" position.** However, this
function does not work when the ignition key is in the "ON"
position. For further information, see "Interior lights" on
page 77.
You have 30 seconds to open a door after using the wireless
remote unlock feature.*** If a door is not opened by then, all
the doors will be automatically locked again.
Even if the "LOCK" or "UNLOCK" switch is kept pressed in,
the locking or unlocking operation is not repeated. Release
the button and then push again.
NOTE: *The volume of beep sound can be changed.
**The interior light can be set not to come on or the
duration of lighting can be changed. ***The time before
automatic re–locking can be changed. Ask your Lexus
dealer for details.