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220 2-1. Driving procedures
SIENNA_OM_OM45483U_(U)
CAUTION
■When driving the vehicle
●Use engine braking (downshift) to maintain a safe speed when driving
down a steep hill.
Using the brakes continuously may cause the brakes to overheat and lose
effectiveness. ( P. 239)
● Do not adjust the position of the steering wheel, the seat, or the inside or
outside rear view mirrors while driving.
Doing so may result in a loss of vehicle control that can cause accidents,
resulting in death or serious injury.
● Always check that all passengers’ arms, heads or other parts of their body
are not outside the vehicle, as this may result in death or serious injury.
● AWD models: Do not drive the vehicle off-road.
This is not an AWD vehicle designed for off-road driving. Proceed with all
due caution if it becomes unavoidable to drive off-road.
● AWD models: Do not drive across a river or through other bodies of water.
This may cause electric/electronic components to short circuit, damage
the engine or cause other serious damage to the vehicle.
● Do not drive in excess of the speed limit. Even if the legal speed limit per-
mits it, do not drive over 85 mph (140 km/h) unless your vehicle has high-
speed capability tires. Driving over 85 mph (140 km/h) may result in tire
failure, loss of control and possible injury. Be sure to consult a tire dealer
to determine whether the tires on your vehicle are high-speed capability
tires or not before driving at such speeds.
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2-1. Driving procedures
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When driving
SIENNA_OM_OM45483U_(U)
CAUTION
■
When taking a nap in the vehicle
Always turn the engine off. Otherwise, if you accidentally move the shift lever
or depress the accelerator pedal, this could cause an accident or fire due to
engine overheating. Additionally, if the vehicle is parked in a poorly venti-
lated area, exhaust gases may collect and enter the vehicle, leading to
death or a serious health hazard.
■ When braking
●When the brakes are wet, drive more cautiously.
Braking distance increases when the brakes are wet, and this may cause
one side of the vehicle to brake differently than the other side. Also the
parking brake may not securely hold the vehicle.
● If the power brake assist function does not operate, do not follow other
vehicles closely and avoid hills or sharp turns that require braking.
In this case, braking is still possible, but the brake pedal should be
depressed more firmly than usual. Also, the braking distance will increase.
Have your brakes fixed immediately.
● Do not pump the brake pedal if the engine stalls.
Each push on the brake pedal uses up the reserve for the power-assisted
brakes.
● The brake system consists of 2 individual hydraulic systems: If one of the
systems fails, the other will still operate. In this case, the brake pedal
should be depressed more firmly than usual and braking distance will
increase.
Have your brakes fixed immediately.
■ If the vehicle becomes stuck (AWD models)
Do not spin the wheels excessively when any of the tires is up in the air, or
the vehicle is stuck in sand or mud, etc. This may damage the driveline com-
ponents or unexpectedly propel the vehicle forward or backward, causing an
accident.
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2-1. Driving procedures
2
When driving
SIENNA_OM_OM45483U_(U)
Engine (ignition) switch (vehicles with a smart key system)
Performing the following operations when carrying the electronic
key on your person starts the engine or changes “ENGINE START
STOP” switch modes.
■ Starting the engine
Check that the parking brake is set.
Check that the shift lever is set in P.
Firmly depress the brake pedal.
The “ENGINE START STOP” switch indicator will turn green. If
the indicator does not turn green, the engine cannot be started.
Press the “ENGINE START
STOP” switch.
The engine will crank until it
starts or for up to 30 seconds,
whichever is less.
Continue depressing the brake
pedal until the engine is com-
pletely started.
The engine can be started
from any “ENGINE START
STOP” switch mode.
STEP1
STEP2
STEP3
STEP4
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2-1. Driving procedures
2
When driving
SIENNA_OM_OM45483U_(U)
NOTICE
■
To prevent battery discharge
●Do not leave the “ENGINE START STOP” switch in ACCESSORY or IGNI-
TION ON mode for long periods of time without the engine running.
● If the indicator on the “ENGINE START STOP” switch is illuminated, the
“ENGINE START STOP” switch is not off. When exiting the vehicle,
always check that the “ENGINE START STOP” switch is off.
● Do not stop the engine when the shift lever is in a position other than P. If
the engine is stopped in another shift lever position, the “ENGINE START
STOP” switch will not be turned off but instead be turned to ACCESSORY
mode. If the vehicle is left in ACCESSORY 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 the engine
checked immediately.
■ Symptoms indicating a malfunction with the “ENGINE START STOP”
switch
If the “ENGINE START STOP” seems to be operating somewhat differently
than usual, such as the switch sticking slightly, there may be a malfunction.
Contact your Toyota dealer immediately.
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2-1. Driving procedures
2
When driving
SIENNA_OM_OM45483U_(U)
■
Shift position purpose
*1: Shifting to the D position allows the system to select a gear suitable
for the driving conditions. Setting the shift lever to the D position is
recommended for normal driving.
*2: Selecting shift ranges using S mode restricts the upper limit of thepossible gear ranges, controls engine braking forces, and prevents
unnecessary upshifting.
Shift positionFunction
PParking the vehicle/starting the engine
RReversing
NNeutral
DNormal driving*1
SS mode driving*2 (P. 240)
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2-1. Driving procedures
2
When driving
SIENNA_OM_OM45483U_(U)
■
Shift ranges and their functions
●Automatically selecting gears between 1 and 6 according to
vehicle speed and driving conditi ons. But, the gear is limited
according to selected shift range.
● You can choose from 6 levels of engine braking force.
● A lower shift range will provide greater engine braking force than
a higher shift range, and the engine speed will also increase.
■S mode
●When the shift range is 5 or lower, holding the shift lever toward “+” sets
the shift range to 6.
● To prevent excessive engine speed, a function was adopted that auto-
matically selects a higher shift range before the engine speed becomes
too high.
● To protect the automatic transaxle, a function is adopted that automati-
cally selects a higher shift range when the fluid temperature is high.
■ When driving with the cruise control or dynamic radar cruise control (if
equipped)
Engine braking will not occur in S mode, even when downshifting to 5 or 4.
( P. 297, 302)
■ If the shift lever cannot be shifted from P
● P. 778
● Vehicles with AUTO ACCESS SEAT : If the AUTO ACCESS SEAT has
not been locked in place after being stowed, the shift lever cannot be
shifted from P.
For details, refer to “AUTO ACCESS SEAT OWNER’S MANUAL”.
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252 2-2. Instrument cluster and information display
SIENNA_OM_OM45483U_(U)
*1: These lights turn on when the engine switch is turned to the “ON”position (vehicles without a smart key system) or the “ENGINE
START STOP” switch is turned to IGNITION ON mode (vehicles
with a smart key system) to indicate that a system check is being
performed. They will turn off after the engine is started, or after a
few seconds. There may be a malfunction in a system if a light does
not come on, or if the lights do not turn off. Have the vehicle
inspected by your Toyota dealer.
*2: The light flashes to indicate that the system is operating.
*3: The light turns on when the system is turned off. The light flashesquickly to indicate that the system is operating.
Slip indicator
(P. 332, 337)Shift position indicators
(P. 240)
VSC OFF indicator
(P. 333)Eco Driving Indicator
Light ( P. 268)
“TRAC OFF” indicator
(P. 333)
(if equipped)
“PCS” warning
(P. 340)
BSM outside rear view
mirror indicators
(P. 348)
*1, 2
*1*1
*1*1, 3
*4
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2-2. Instrument cluster and information display
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When driving
SIENNA_OM_OM45483U_(U)
*4: In order to confirm operation, the BSM outside rear view mirror indi-
cators illuminate in the following situations:
• When the engine switch is turned to the “ON” position (vehicles
without a smart key system) or the “ENGINE START STOP”
switch is turned to IGNITION ON mode (vehicles with a smart
key system) while the BSM main switch is set to ON.
• When the BSM main switch is set to ON while the engine switch is turned to the “ON” position (vehicles without a smart key sys-
tem) or the “ENGINE START STOP” switch is in IGNITION ON
mode (vehicles with a smart key system).
If the system is functioning correctly, the BSM outside rear view mir-
ror indicators will turn off after a few seconds.
If the BSM outside rear view mirror indicators do not illuminate or do
not turn off, there may be a malfunction with the system.
If this occurs, have the vehicle inspected by your Toyota dealer.