Subaru 2004 Impreza - Manual (Page 149)

3-12
Instruments and controls
" When the actual ambient temperature falls outside
the specified gauge range.
REV indicator light and buzzer (WRX-
STi)
The REV alarm system issues a warning using the
REV indicator light (and a buzzer if additionally select-
ed) when the engine speed reaches a level previously
set using the REV setting knob.
If you press the trip knob when the ignition switch is in
the “LOCK” position, the ambient temperature gauge
will show the engine speed that has already been set.
NOTE
Even if the REV alarm system is not set, the REV
indicator light will come on whenever the engine
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