Toyota FJ Cruiser Instructions For Adjusting And Operating page 124

2−2. Instrument cluster
NOTICE
n
To prevent damage to the engine and its components
l Do not let the indicator needle of the tachometer enter the red zone, which
indicates the maximum engine speed.
l 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. (
126
P. 356)