
1884-2. Driving procedures
■Auto power off function
If the vehicle is left in ACCESSORY mode for more than 20 minut es or IGNI-
TION ON mode (with the engine is not running) for more than an hour with
the shift lever in P, the engine switch will automatically turn off. However, this
function cannot entirely prevent battery discharge. Do not leav e the vehicle
with the engine switch in ACCESSORY or IGNITION ON mode for lon g peri-
ods of time when the engine is not running.
■ Automatic engine shut off feature
●The vehicle is equipped with a feature that automatically shuts off the
engine when the shift lever is in P with the engine running for an extended
period.
● The engine will automatically shut off after approximately 1 ho ur if it has
been left running while the shift lever is in P.
● The timer for the automatic engine shut off feature will reset if the brake
pedal is depressed or if the shift lever is in a position other than P.
● After the vehicle is parked, if the door is locked with the door lock switch
(P. 129) from the inside or the mechanical key ( P. 484) from the outside,
the automatic engine shut off feature will be disabled. The tim er for the auto-
matic engine shut off feature will be re-enabled if the driver’ s door is
opened.
■ Electronic key battery depletion
P. 125
■ Conditions affecting operation
P. 139
■ Notes for the entry function
P. 140
■ If the engine does not start
●The engine immobilizer system may not have been deactivated. ( P. 77)
Contact your Toyota dealer.
● Check that the shift lever is securely set in P. The engine may not start if the
shift lever is displaced out of P.
■ Steering lock
After turning the engine switch off and opening and closing the doors, the
steering wheel will be locked due to the steering lock function . Operating the
engine switch again automatically cancels the steering lock.
■ When the steering lock cannot be released
A message informing the driver that the
steering wheel is locked will be displayed
on the multi-information display.
Check that the shift lever is set in P. Press
the engine switch while turning the steer-
ing wheel left and right.

1894-2. Driving procedures
4
Driving
■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.
■ When a message requesting the smart key system be inspected is dis-
played on the multi-information display
The system may be malfunctioning. Have the vehicle inspected by your
Toyota dealer immediately.
■ If the electronic key battery is depleted
P. 435
■ Operation of the engine switch
●If the switch is not pressed shortly and firmly, the engine swi tch mode may
not change or the engine may not start.
● If attempting to restart the engine immediately after turning t he engine
switch off, the engine may not start in some cases. After turning the engine
switch off, wait a few seconds before restarting the engine.
■ If the smart key system has been d eactivated in a customized setting
P. 484
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 in jury.
■ Caution while driving
If engine failure occurs while the vehicle is moving, 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 accident, res ulting in
death or serious injury.
■ Stopping the engine in an emergency
● If you want to stop the engine in an emergency while driving th e vehicle,
press and hold the engine switch for more than 2 seconds, or press it
briefly 3 times or more in succession. ( P. 445)
However, do not touch the engine switch while driving except in an emer-
gency. 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.
● If the engine switch is operated while the vehicle is running, a warning
message will be shown on the multi-information display and a buzzer
sounds.
● When restarting the engine after it was turned off while drivin g, shift the
shift lever to N and press the engine switch.

2054-3. Operating the lights and wipers
4
Driving
With the headlights on, push
the lever away from you to turn
on the high beams.
Pull the lever toward you to the
center position to turn the high
beams off.
Pull the lever toward you and
release it to flash the high
beams once.
You can flash the high beams with the headlights on or off.
●When the steering wheel or turn signal lever is operated while the
headlights are on (lo w beam), a cornering light will turn on and light
up the direction of movement of the vehicle. The cornering ligh ts
are designed to ensur e excellent visibility when making a turn at an
intersection.
However, when vehicle speed is approximately 93 mph (150 km/h) or
higher, the cornering lights will not turn on.
● When the shift lever is in R while the headlights are on (low b eam),
both cornering lights will turn on. This is designed to enhance visi-
bility when parking.
Turning on the high beam headlights
1
2
Cornering light s (if equipped)

2294-5. Using the driving support systems
4
Driving
■Pre-collision braking
If the system determines that the possibility of a frontal collision is
extremely high, the brakes are automatically applied to help avoid
the collision or reduce th e impact of the collision.
■Emergency steering assist
If the system determines that the possibility of a frontal collision is
high and that there is sufficient space for the vehicle to be s teered
into within its lane, and the dr iver has begun evasive maneuver or
steering, emergency steering assist will assist the steering move-
ments to help enhance the vehicle stability and for lane depart ure
prevention.
During operation, the indicator
will illuminate in green.
■Intersection right/left turn assistance
If the system determines that t here is a high possibility of a collision
in the following situations, it will assist with Pre-collision warning
and, if necessary Pre-collision braking.
Depending on the configuration of the intersection, it may not be
possible to support.
● When you turn right/left at an
intersection and cross the
path of an oncoming vehicle

2314-5. Using the driving support systems
4
Driving
WARNING
■Pre-collision braking
● When the pre-collision braking function is operating, a large a mount of
braking force will be applied.
● If the vehicle is stopped by the operation of the pre-collision braking func-
tion, the pre-collision braking function operation will be canceled after
approximately 2 seconds. Depress the brake pedal as necessary.
● The pre-collision braking function may not operate if certain operations are
performed by the driver. If the accelerator pedal is being depressed
strongly or the steering wheel is being turned, the system may determine
that the driver is taking evasive action and possibly prevent the pre-colli-
sion braking function from operating.
● In some situations, while the pre-collision braking function is operating,
operation of the function may be canceled if the accelerator pedal is
depressed strongly or the steering wheel is turned and the syst em deter-
mines that the driver is taking evasive action.
● If the brake pedal is being depressed, the system may determine that the
driver is taking evasive action and possibly delay the operation timing of
the pre-collision braking function.
■ Emergency steering assist
● As emergency steering assist operation will be canceled when th e system
determines that lane departure prevention function has been completed.
● Emergency steering assist may not operate or may be cancel in the follow-
ing cases as the system may determine the driver is taking acti ons.
• If the accelerator pedal is being depressed strongly, the steering wheel is being operated sharply, the brake pedal is being depressed o r the
turn signal lever is being operated. In this case, the system m ay deter-
mine that the driver is taking evasive action and the emergency steering
assist may not operate.
• In some situations, while the emergency steering assist is ope rating,
operation of the function may be canceled if the accelerator pe dal is
depressed strongly, the steeri ng wheel is operated sharply or t he brake
pedal is being depressed and the system determines that the dri ver is
taking evasive action.
• When the emergency steering assist is operating, if the steering wheel
is held firmly or is operated in the opposite direction to that which the
system is generating torque, the function may be canceled.

2334-5. Using the driving support systems
4
Driving
■Enabling/disabling the pre-collision system
The pre-collision system can be enabled/disabled on ( P. 1 0 1 )
of the multi-information display.
The system is automatically enabled each time the engine switch is
turned to IGNITION ON mode.
If the system is disabled, the
PCS warning light will turn on
and a message will be dis-
played on the multi-information
display.
■Changing the pre-colli sion warning timing
The pre-collision warning timing can be changed on ( P. 1 0 1 )
of the multi-information display.
The warning timing setting is retained when the engine switch is turned
off. However, if the pre-collision system is disabled and re-en abled, the
operation timing will return to the default setting (middle).
If the pre-collision warning timing is changed, e mergency steering
assist timing will also b e changed accordingly.
If late is selected, emergency st eering assist would not operate in
case of an emergency.
Early
Middle
This is the default setting.
Late
Changing settings of the pre-collision system
1
2
3

2354-5. Using the driving support systems
4
Driving
●Pre-collision braking
If either of the following occur while the pre-collision brakin g function is
operating, it will be canceled:
• The accelerator pedal is depressed strongly.
• The steering wheel is turned sharply or abruptly.
● Emergency steering assist
When the turn signal lights are flashing, emergency steering as sist will not
operate in case of an emergency.
If any of the following occur while the emergency steering assi st function is
operating, it will be canceled:
• The accelerator pedal is depressed strongly.
• The steering wheel is turned sharply or abruptly.
• The brake pedal is depressed.
Detectable objectsVehicle speed
Relative speed
between your vehicle and object
Preceding and
stopped vehiclesApprox. 7 to 110 mph (10 to
180 km/h)Approx. 7 to 110 mph
(10 to 180 km/h)
Oncoming vehi-
clesApprox. 7 to 110 mph (10 to
180 km/h)Approx. 13 to 110
mph (20 to 180 km/h)
Bicyclists and
pedestriansApprox. 7 to 50 mph (10 to
80 km/h)Approx. 7 to 50 mph
(10 to 80 km/h)
Detectable objectsVehicle speed
Relative speed
between your vehicle and object
Preceding and
stopped vehicles,
bicyclists and
pedestrians
Approx. 25 to 50 mph (40 to
80 km/h)Approx. 25 to 50 mph
(40 to 80 km/h)

2394-5. Using the driving support systems
4
Driving
• While steering into the direction of oncoming traffic
■ Situations in which the syst em may not operate properly
● In some situations such as the following, an object may not be detected by
the radar sensor and front camera, preventing the system from operating
properly:
• When a detectable object is approaching your vehicle
• When your vehicle or a detectable object is wobbling
• If a detectable object makes an abrupt maneuver (such as sudde n swerv-
ing, acceleration or deceleration)
• When your vehicle approaches a detectable object rapidly
• When a detectable object is near a wall, fence, guardrail, manhole cover,
vehicle, steel plate on the road, etc.
• When a detectable object is under a structure
• When part of a detectable object is hidden by an object, such as large
baggage, an umbrella, or guardrail
• When there are many things which can reflect the radio waves of the radar in the vicinity (tunnels, truss bridges, gravel roads, sn ow covered
road that have tracks, etc.)
• When there is an effect on the radio waves to the radar that i s installed on
another vehicle
• When multiple detectable objects are close together
• If the sun or other light is shining directly on a detectable object
• When a detectable object is a shade of white and looks extremely bright
• When a detectable object appears to be nearly the same color o r bright-
ness as its surroundings
• If a detectable object cuts or suddenly emerges in front of your vehicle
• When the front of your vehicle is hit by water, snow, dust, et c.
• When a very bright light ahead, such as the sun or the headlig hts of
oncoming traffic, shines directly into the front camera
• When approaching the side or front of a vehicle ahead
• If a vehicle ahead is a motorcycle • While making a right/left turn, when an oncoming vehicle turns right/left in
front of your vehicle
• When a detectable object is not directly in front of your vehicle