engine SUBARU BRZ 2018 Workshop Manual

181
2-1. Driving procedures
2
When driving
BRZ_U (A4450BE-A)
CAUTION
■
To prevent battery discharge
● Do not leave the push-button ignition switch in “ACC” or “ON” mode for
long periods of time without the engine running.
● If the keyless access with push button start system indicator light (green)
is illuminated, the push-button ignition switch is not off. When exiting the
vehicle, always check that the push-button ignition switch is off.
● Vehicles with an automatic transmission: Do not stop the engine when the
select lever is in a position other than P. If the engine is stopped in another
select lever position, the push-button ignition switch will not be turned off
but instead be turned to “ACC” mode. If the vehicle is left in “ACC” mode,
battery discharge may occur.
■ When starting the engine
● Do not race a cold engine.
● If the engine becomes difficult to start or stalls frequently, have your vehi-
cle checked by your SUBARU dealer immediately.
● Vehicles with an automatic transmission: Do not shift the select lever while
the starter is operating.
■ Symptoms indicating a malfunction with the push-button ignition
switch
If the push-button ignition switch seems to be operating somewhat differently
than usual, such as the switch sticking slightly, there may be a malfunction.
Contact your SUBARU dealer immediately.

182
2-1. Driving procedures
BRZ_U (A4450BE-A)
Engine (ignition) switch (vehicles without a keyless access with push button star t system)
■Starting the engine
Vehicles with an automatic transmission Check that the parking brake is set.
Check that the select lever is set in P.
Firmly depress the brake pedal.
Turn the engine switch to the “START” position to start the
engine.
Vehicles with a manual transmission Check that the parking brake is set.
Check that the shift lever is set in neutral.
Firmly depress the clutch pedal.
Turn the engine switch to the “START” position to start the
engine.
■ Changing the engine switch positions
“LOCK”
The steering wheel is locked
and the key can be removed.
(Vehicles with an automatic
transmission: The key can be
removed only when the select
lever is in P.)
“ACC”
Some electrical components
such as the power outlet can
be used.
“ON”
All electrical components can
be used.
“START”
For starting the engine.
STEP 1
STEP 2
STEP 3
STEP 4
STEP 1
STEP 2
STEP 3
STEP 4

183
2-1. Driving procedures
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When driving
BRZ_U (A4450BE-A)
■
Turning the key from “ACC” to “LOCK”
Vehicles with an automatic transmission: Shift the select lever to P.
(→ P. 185)
Vehicles with a manual transmission: Shift the shift lever to neutral.
( → P. 192)
■ If the engine does not start
Remove the key and try again. If the engine does not start, the engine immo-
bilizer system may not have been deactivated. ( →P. 82)
Contact your SUBARU dealer.
■ When the steering lock cannot be released
■ Key reminder function
A buzzer sounds if the driver’s door is opened while the engine switch is in
the “LOCK” or “ACC” position to remind you to remove the key.
■ Immediately after reconnecting the battery terminals due to replacing
the battery and so forth
The engine may not start. If this occurs, turn the engine switch to the “ON”
position, and start the engine after waiting at least 10 seconds. Idling may be
unstable immediately after the engine starts, however, this is not a malfunc-
tion.
STEP 1
Push in the key and turn to the “LOCK”
position.STEP 2
When starting the engine, the engine
switch may seem stuck in the “LOCK”
position. To free it, turn the key while turn-
ing the steering wheel slightly left and
right.

184 2-1. Driving procedures
BRZ_U (A4450BE-A)
WARNING
■When starting the engine
Always start the engine while sitting in the driver's seat. Do not depress the
accelerator pedal while starting the engine under any circumstances.
Doing so may cause an accident resulting in death or serious injury.
■ Caution when driving
Do not turn the engine switch to the “LOCK” position while driving. If, in an
emergency, you must turn the engine off while the vehicle is moving, turn the
engine switch only to the “ACC” position to stop the engine. An accident may
result if the engine is stopped while driving.
CAUTION
■To prevent battery discharge
Do not leave the engine switch in the “ACC” or “ON” position for long periods
of time without the engine running.
■ When starting the engine
●Do not crank the engine for more than 10 seconds at a time. This may
overheat the starter and wiring system.
If the engine does not start, turn the engine switch to the “LOCK” position
and try to start the engine again after waiting for 10 seconds or more.
● Do not race a cold engine.
● If the engine becomes difficult to start or stalls frequently, have your vehi-
cle checked by your SUBARU dealer immediately.
● Vehicles with an automatic transmission: Do not shift the select lever while
the starter is operating.

185
2-1. Driving procedures
2
When driving
BRZ_U (A4450BE-A)
Automatic transmission∗
Select a shift position appropriate for the driving conditions.
■Shifting the select lever
Vehicles without a keyless access with push button
start system
While the engine switch is in the “ON” position, move the
select lever with the brake pedal depressed.
When shifting the select lever between P and D, make sure that
the vehicle is completely stopped.
Vehicles with a keyless access with push button start
system
While the push-button ignition switch is in “ON” mode,
move the select lever with the brake pedal depressed.
When shifting the select lever between P and D, make sure that
the vehicle is completely stopped.
∗: If equipped

186 2-1. Driving procedures
BRZ_U (A4450BE-A)
■Shift position uses
*: Shifting to the D position allows the system to select a gear suitable for
the driving conditions. Setting the select lever to the D position is rec-
ommended for normal driving.
Shift
positionMulti-information display
FunctionMonochrome displayColor display
PParking the vehicle/start- ing the engine
RReversing
NNeutral
D
Normal D position driving*
(gears between “1” and “6” are automatically selected)
(paddle shift levers activated)(paddle shift levers activated)
Temporary manual mode
driving
( → P. 190)
MManual mode driving
(→ P. 188)

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2-1. Driving procedures
2
When driving
BRZ_U (A4450BE-A)
However, even when in manual mode, the gears will be automatically
changed in the following situations:
●
When vehicle speed drops (downshift only).
● When engine oil temperature is high and engine speed rises close
to the red zone.
■When moving the select lever out of P
If the select lever is pushed sideways before the brake pedal is depressed,
select lever operation may not be possible. Depress the brake pedal before
shifting the select lever out of P.
■ Downshifting restrictions warning buzzer
If downshifting operations are performed at a vehicle speed by which down-
shifting is not possible (when downshifting will cause the engine speed to
enter the red zone), a buzzer will sound to warn the driver that downshifting
cannot be performed.
■ When driving with cruise control activated
Downshifting can be performed even when using cruise control. After down-
shifting, the set speed continues. ( →P. 188, 190)
■ Sport mode
● In sport mode, lower gears are used and gears change at a higher
engine speed.
● If sport mode is changed to while the select lever is in the M position, the
“SPORT” indicator will come on but sport mode controls will not be car-
ried out. Shift the select lever to the D position.
● Sport mode cannot be changed to when driving with cruise control acti-
vated.
■ Snow mode
To prevent slipping, 1
st gear cannot be selected when in snow mode.
■ Sport mode and snow mode automatic deactivation
In the following situations, the driving mode is automatically deactivated:
● When the engine is turned off after driving in sport mode or snow mode.
● When cruise control is activated while driving in sport mode.

190 2-1. Driving procedures
BRZ_U (A4450BE-A)
■If the select lever cannot be shifted from P
→ P. 474
■ Automatic gear selection when the vehicle is stopped
When the vehicle is idling at high rpm in order to warm up, and the vehicle is
on a slippery road, the transmission may automatically shift to 2
nd gear for
stopping and starting off.
■
Temporary manual mode driving
*1: Vehicles with a monochrome multi-information display
*2: Vehicles with a color multi-information display
Temporary manual mode driving will be deactivated and normal D position
driving will be returned to in the following situations:
● When driving for longer than the set time (the set time differs according
to driving conditions).
● When the vehicle comes to a stop.
● When the accelerator pedal is continually depressed for longer than the
set time.
● When the accelerator pedal is fully, or near-fully, depressed. Temporary manual mode driving can be
changed to by operating the paddle shift
levers while the select lever is in the D
position.
When this occurs, the selected gear and
“D” are displayed on the shift position and
shift range indicator.
(When engine speed rises close to the
red zone, upshifting will be automatically
performed.)
*1*2

191
2-1. Driving procedures
2
When driving
BRZ_U (A4450BE-A)
■
Adaptive control
In order to realize smoother driving wh ile driving in D position, an appropri-
ate gear is automatically selected by limiting upshifting and performing
downshifting operations according to driver operations and driving condi-
tions.
● When driving uphill, prevents unnecessary upshifting and downshifting.
● When driving downhill, downshifting is performed at engine speeds
higher than usual.
● When driving on curves, prevents upshifting even when accelerating.
● When the brake pedal is depressed firmly, downshifting is automatically
performed, fully utilizing engine braking.
● When the accelerator pedal is suddenly released, prevents upshifting.
Adaptive control operates automatically when the select lever is in the D
position. (The function is canceled when the paddle shift levers are operated
or the select lever is shifted to the M position.)
WARNING
■ When driving on slippery road surfaces
Be careful of downshifting and sudden acceleration, as this could result in
the vehicle skidding to the side or spinning.
■ To prevent incorrect operation
Do not attach items such as accessories to the paddle shift levers.
Doing so may unintentionally move the paddle shift levers.

196 2-1. Driving procedures
BRZ_U (A4450BE-A)
■Turn signals can be operated when
Vehicles without a keyless access with push button start system
The engine switch is in the “ON” position.
Vehicles with a keyless access with push button start system
The push-button ignition switch is in “ON” mode.
■ If the indicators flash faster than usual
Check that a light bulb in the turn signal lights has not burned out.
■ If the turn signals stop flashing be fore a lane change has been per-
formed
Operate the lever again.
■ To discontinue flashing of the turn signals during a lane change
Operate the lever in the opposite direction.
■ Customization that can be conf igured at your SUBARU dealer
The lane change turn signal function can be disabled.
(Customizable features: →P. 522)