Lexus LS460 2011 Owner's Manual page 221

Instrument panel light control buttons
The brightness of the instrument panel lights can be adjusted.
NOTICE

To prevent damage to the engine and its components

Do not let the indicator needle of the tachometer enter the red zone, which
indicates the maximum engine speed.

The engine may be overheating if the temperature gauge is in the red zone
(H). In this case, immediately stop the vehicle in a safe place, and check
the engine after it has cooled completely. (
LS460_EE
2-2. Instrument cluster
Darker
Brighter

P. 739)
2
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