Lexus LX 570 Owner's Manual page 420

NOTICE
To prevent the water damage
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Take all necessary safety measures to ensure that water damage to the engine or other
components does not occur.
Water entering the engine air intake will cause severe engine damage.
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Water entering the automatic transmission will cause deterioration in shift quality,
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locking up of your transmission accompanied by vibration, and ultimately damage.
Water can wash the grease from wheel bearings, causing rusting and premature fail-
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ure, and may also enter the differentials, transmission and transfer case, reducing the
gear oil's lubricating qualities.
When you drive through water
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If driving through water, such as when crossing shallow streams, first check the depth of
the water and the bottom of the riverbed for firmness. Drive slowly and avoid deep
water.
Inspection after off-road driving
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Sand and mud that has accumulated in brake drums and around brake discs may
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affect braking efficiency and may damage brake system components.
Always perform a maintenance inspection after each day of off-road driving that has
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taken you through rough terrain, sand, mud, or water. For scheduled maintenance
information, refer to the scheduled maintenance (P. 505).
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4-6. Driving tips
4