Lexus RX 350 Owner's Manual page 546

5-2. Steps to take in an emergency
Warning message
546
Details
Indicates that the engine
has overheated
A buzzer also sounds.
Indicates that remaining
fuel is approximately 2.9
gal. (10.8 L, 2.4 Imp. gal.)
or less
Correction procedure
Stop and check.
(P. 578)
Refuel the vehicle.