Lexus GS460 Owner's Manual page 550

5-2. Steps to take in an emergency
Warning message
(Flashing)
(If equipped)
(Flashing)
550
GS_G_U (OM30C11U)
May 21, 2010 1:06 pm
Details
The trunk is not fully
closed.
flashes and a
buzzer sounds to indi-
cate that trunk is not fully
closed (with the vehicle
having reached a speed
of 3 mph [5 km/h]).
The moon roof is not fully
closed (with the
"ENGINE START STOP"
switch is OFF and the
driver's door opened).
The parking brake is still
engaged (with the vehicle
having reached a speed
of more than 3 mph [5
km/h]).
The washer fluid level is
low.
The engine oil level is low.
Correction procedure
Close the trunk.
Close the moon roof.
Release the parking
brake.
Add washer fluid.
Check the engine oil level,
and add if necessary.