Lexus GS 350 Owner's Manual page 717

Have the malfunction repaired immediately.
After taking the specified steps to correct the suspected problem, check
that the warning message and light go off.
Interior Exterior
buzzer buzzer

Once
3
Once
times
7-2. Steps to take in an emergency
Warning message
(Flashes)
(Flashes)
Details
The electronic key
is not detected
when an attempt is
made to start the
engine.
The electronic key
was carried out-
side the vehicle and
a door other than
the driver' s door
was opened and
closed while the
engine switch was
in a mode other
than off.
The driver' s door
was opened and
closed while the
electronic key was
not in the vehicle,
the shift lever was in
P and the engine
switch was not
turned off.
715
Correction
procedure
Start the
engine with
the elec-
tronic key
present.
Bring the
electronic
key back
into the
vehicle.
Turn the
7
engine
switch off or
bring the
electronic
key back
into the
vehicle.