Have the vehicle inspected by your Lexus dealer immediately.
A buzzer sounds and a warning message is shown on the multi-informa- tion display. Failure to investigate the cause of the following warnings may lead to the system operating abnormally and possibly cause an accident.
Have the vehicle inspected by your Lexus dealer immediately.



See also:
Do-it-yourself service precautions
If you perform maintenance yourself, be sure to follow the correct procedure
given in these sections.
CAUTION
The engine compartment contains many mechanisms and fluids that may move sud-
...
Changing the passkey
Select “Set Passkey” using a voice
command or the “TUNE/SEL” knob.
Pattern A
Press the talk switch, say a 4 to
8-digit number, and select “Con- firm” using a voice command or the ...
What is not covered
These warranty obligations do not
apply to failures or noncompliance
caused by:
• The use of replacement parts
not certified in accordance with
aftermarket parts certification
regulation ...
