Lexus GS350 Owner's Manual page 713

Stop the vehicle immediately.
A buzzer sounds and a warning message is shown on the multi-informa-
tion display. The following warning indicates the possibility of damage to
the vehicle that may lead to an accident. Immediately stop the vehicle in a
safe place and contact your Lexus dealer.
Warning message
GS350_OM_OM30D41U_(U)
7-2. Steps to take in an emergency
Details
Indicates abnormal engine oil pressure
The warning light may come on if the engine oil
pressure is too low.
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