Lexus GX460 Manual page 180

2-1. Driving procedures
NOTICE
Avoiding damage to vehicle parts
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Do not turn the steering wheel fully in either direction and hold it there for an
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extended period of time. 
Doing so may damage the power steering pump.
When driving over bumps in the road, drive as slowly as possible to avoid damag-
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ing the wheels, underside of the vehicle, etc.
If you get a flat tire while driving
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A flat or damaged tire may cause the following situations. Hold the steering wheel
firmly and gradually depress the brake pedal to slow down the vehicle.
It may be difficult to control your vehicle.
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The vehicle will make abnormal sounds or vibrations.
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The vehicle will lean abnormally.
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Information on what to do in case of a flat tire (P. 724)
When encountering flooded roads
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Do not drive on a road that has flooded after heavy rain etc. Doing so may cause the
following serious damage to the vehicle:
Engine stalling
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Short in electrical components
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Engine damage caused by water immersion
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In the event that you drive on a flooded road and the vehicle is flooded, be sure to
have your Lexus dealer check the following:
Brake function
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Changes in quantity and quality of oil and fluid used for the engine, transmission,
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transfer, differentials, etc.
Lubricant condition for the propeller shaft, bearings and suspension joints (where
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possible), and the function of all joints, bearings, etc.
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GX460_U.S.A. (OM60G24U)