Lexus LS460 Owner's Manual page 917

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Start the engine and turn the air conditioning system on to check
that the radiator cooling fan operates and to check for coolant
leaks from the radiator or hoses.
The fan operates when the air conditioning system is turned on immedi-
ately after a cold start. Confirm that the fan is operating by checking the
fan sound and air flow. If it is difficult to check these, turn the air condi-
tioning system on and off repeatedly.
(The fan may not operate in freezing temperatures.)
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If the fan is not operating:
Stop the engine immediately and contact any authorized Lexus
dealer or repairer, or another duly qualified and equipped profes-
sional.
If the fan is operating:
Have the vehicle inspected at the nearest any authorized Lexus
dealer or repairer, or another duly qualified and equipped profes-
sional.
LS460_EE (OM50D49E)
7-2. Steps to take in an emergency
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