Lexus IS 350C 2012 Manual page 505

Have the vehicle inspected by your Lexus dealer immediately.
A buzzer sounds and a message is shown. Failure to investigate the cause
of the following messages may lead to the system operating abnormally
and possibly cause an accident. Have the vehicle inspected by your
Lexus dealer immediately.
Message
(Flashing)
(If equipped)
(If equipped)
Indicates a malfunction in the steering lock system.
Indicates a malfunction in the headlight leveling
system.
Indicates a malfunction in the pre-collision system.
5-2. Steps to take in an emergency
Details
5
505