Toyota FJ cruiser 2013 Owner's Manual page 120

2-2. Instrument cluster
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. (
142
→
P. 502)