Lexus 2015 RX350 Owner's Manual page 193

NOTICE
To prevent damage to the engine and its components
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Do not let the indicator needle of the tachometer enter the red zone, which indi-
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cates the maximum engine speed.
The engine may be overheating if the engine coolant temperature gauge is in the
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red zone (H). In this case, immediately stop the vehicle in a safe place, and check
the engine after it has cooled completely. (P. 799)
I n f o r ma t i o n P r o v i d e d b y :
2-2. Instrument cluster
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