3-10 Instruments and controls
& Temperature gauge
1) Normal operating range
The temperature ga uge shows engine
coolant temperature when the ignition
switch is in the “ON” position.
The coolant tempe rature will vary in
accordance with the outside temperature
and driving conditions.
We recommend that you drive moderately
until the pointer of the temperature gauge
reaches near the middle of the range.
Engine operation is optimum with the
engine coolant at this temperature range
and high revving operation when the
engine is not warmed up enough should
be avoided.
CAUTION
If the pointer exceeds the normal
operating range, safely stop the
vehicle as soon as possible.
Refer to “Engine overheating” F9-
13.
REV indicator light and buz-
zer (WRX STI)
The REV alarm system issues a warning
using the REV i ndicator light (and a
buzzer if additionally selected) when the
engine speed reaches a level previously
set using the trip knob.
If you press the trip knob, the odometer/
trip meter will show the engine speed that
has already been set.