2013 TOYOTA SIENNA Owners Manual

233
2-1. Driving procedures
2
When driving
SIENNA_OM_OM45472U_(U)
■
Electronic key battery depletion
 P. 5 0
■ Conditions aff ecting operation
 P. 4 6
■ Note for the entry function
 P. 4 7
■ If the engine does not start
The engine immobilizer system may not have been deactivated. ( P. 159)
■ Steering lock
After turning the “ENGINE START STOP” switch off and opening and closing
the doors, the steering wheel will be locked due to the steering lock function.
Operating the “ENGINE START STOP” switch again automatically cancels
the steering lock.
■ When the steering lock cannot be released
■ Steering lock motor overheating prevention
To prevent the steering lock motor from overheating, the motor may be sus-
pended if the engine is turned on and off repeatedly in a short period of time.
In this case, refrain from operating the engine. After about 10 seconds, the
steering lock motor will resume functioning.
The green indicator light on the “ENGINE
START STOP” switch will flash and a
message will be shown on the multi-infor-
mation display. Press the “ENGINE
START STOP” switch while turning the
steering wheel left and right.

234 2-1. Driving procedures
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■When the “ENGINE START STOP” switch indicator flashes in amber
The system may be malfunctioning. Have the vehicle inspected by your
Toyota dealer immediately.
■ If the electronic key battery is depleted
 P. 709
CAUTION
■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 while driving
If the vehicle begins to slide due to engine failure or other circumstances, do
not lock or open the doors until the vehicle reaches a safe and complete
stop. Activation of the steering lock in this circumstance may lead to an acci-
dent, resulting in death or serious injury.
■ Stopping the engine in an emergency
If you want to stop the engine in an emergency while driving the vehicle,
press and hold the “ENGINE START STOP” switch for more than 2 seconds,
or press it briefly 3 times or more in succession. ( P. 796)
However, do not touch the “ENGINE START STOP” switch while driving
except in an emergency. Turning the engine off while driving will not cause
loss of steering or braking control, but the power assist to these systems will
be lost. This will make it more difficult to steer and brake, so you should pull
over and stop the vehicle as soon as it is safe to do so.

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2-1. Driving procedures
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When driving
SIENNA_OM_OM45472U_(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 malfunctio n 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
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Automatic transaxle
Select a shift position appropriate for the driving conditions.
■Shifting the shift lever
Vehicles without a smart key system:
While the engine switch is in the “ON” position, move the
shift lever with the brake pedal depressed.
Vehicles with a smart key system:
While the “ENGINE START STOP” switch is in IGNITION
ON mode, move the shift lever with the brake pedal
depressed.
When shifting the shift lever between P and D, make sure that the
vehicle is completely stopped.

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2-1. Driving procedures
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When driving
SIENNA_OM_OM45472U_(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. 238)

238 2-1. Driving procedures
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Changing shift ranges in S modeWhen the shift lever is in the S position, the shift lever can be oper-
ated as follows: Upshifting
Downshifting
The initial shift range in S mode is set automatically to 5 or 4 accord-
ing to vehicle speed. However, the initial shift range may be set to 3 if
the AI-SHIFT has operated while the shift lever was in the D position.
(
P. 240)

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2-1. Driving procedures
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When driving
SIENNA_OM_OM45472U_(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 br aking 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 contro l or dynamic radar cruise control
Engine braking will not occur in S mode, even when downshifting to 5 or 4.
( P. 295, 300)
■ If the shift lever cannot be shifted from P
● P. 780
● 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”.

240 2-1. Driving procedures
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■If the “S” indicator does not come on even after shifting the shift lever
to S
This may indicate a malfunction in the automatic transaxle system. Have the
vehicle inspected by your Toyota dealer immediately. (In this situation, the
transaxle will operate in the same manner as when the shift lever is in D.)
■ Downshift restriction warning buzzer (S mode)
To help ensure safety and driving performance, downshifting operation may
sometimes be restricted. In some circumstances, downshifting may not be
possible even when the shift lever is operated. (A buzzer will sound twice.)
■ AI-SHIFT
AI-SHIFT automatically selects the suitable gear according to driver perfor-
mance and driving conditions.
AI-SHIFT automatically operates when the shift lever is in the D position.
(Shifting the shift lever to the S position cancels the function.)
■ Driving on a downhill
On declines, there may be case where the vehicle shifts down automatically
to obtain engine braking. As a result of the downshifting the engine speed
may increase.
CAUTION
■When driving on slippery road surfaces
Do not accelerate or shift gears suddenly.
Sudden changes in engine braking may cause the vehicle to spin or skid,
resulting in an accident.