Lexus 2008 IS250 Owner's Manual page 286

4-3. Do-it-yourself maintenance
CAUTION
When working near the electric cooling fan or radiator grille:
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Be sure the "ENGINE START STOP" switch is OFF.
With the "ENGINE START STOP" switch in IGNITION ON mode, the electric
cooling fan may automatically start to run if the air conditioning is on and/or the
coolant temperature is high.
( P. 301)
Safety glasses
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Wear safety glasses to prevent flying or falling material, fluid spray, etc. from getting
in the eyes.
NOTICE
If you remove the air cleaner:
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Driving with the air filter removed may cause excessive engine wear due to dirt in
the air. Also a backfire could cause a fire in the engine compartment.
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