2015 TOYOTA PRIUS PLUG-IN brakes

343
2-4. Using other driving systems
PRIUS PHV_OM_OM47A11U_(U)
2
When driving
■Conditions that may trigger the system even if there is no possibility of
a collision
●When there is an object by the roadside at the entrance to a curve
●When passing an oncoming vehicle on a curve
●When driving over a narrow iron bridge
●When there is a metal object on the road surface
●When driving on an uneven road surface (nose up, nose down)
●When passing an oncoming vehicle on a left-turn
●When your vehicle rapidly closes on the vehicle in front
●When a grade separation/interchange, sign, billboard, or other structure
appears to be directly in the vehicle’s line of travel
●When the steep angle of the road causes a metal object located beneath
the road surface to be seen ahead of the vehicle
●When an extreme change in vehicle height occurs
●When the axis of the radar is out of adjustment
●When passing through certain toll gates
●When passing through an overpass
When the system is activated in the situations described above, there is also
a possibility that the seat belts will retract quickly and the brakes may be
applied with a force greater than normal. When the seat belt is locked in the
retracted position, stop the vehicle in a safe place, release the seat belt and
refasten it.

346
2-4. Using other driving systems
PRIUS PHV_OM_OM47A11U_(U)
CAUTION
■Limitations of the pre-collision system
The driver is solely responsible for safe driving. Always drive safely, taking
care to observe your surroundings.
Do not use the pre-collision system instead of normal braking operations
under any circumstances. This system will not prevent collisions or lessen
damage or injuries in all cases. Do not overly rely on this system. Failure to
do so may cause an accident, resulting in death or serious injury.
This system has been designed to help avoid and reduce the impact of colli-
sions. However, the system operates differently depending on the situation
(oP. 3 4 2 , 3 4 3 ) . A s a r e s u l t , t h e s a m e l e v e l o f p e r f o r m a n c e m a y n o t b e
expected in all cases. Also, the pre-collision brakes may not operate if the
driver is depressing the brake pedal or turning the steering wheel, as the
system will determine such conditions as collision avoidance operations.

348
2-4. Using other driving systems
PRIUS PHV_OM_OM47A11U_(U)
CAUTION
■When the sensor may not be correctly detecting the vehicle ahead
Apply the brakes as necessary in any of the following situations.
●When water or snow thrown up by the surrounding vehicles hinders the
functioning of the sensor
●When your vehicle is pointing upwards (caused by a heavy load in the lug-
gage compartment etc.)
●Ve h i c l e s t h a t c u t i n s u d d e n l y
●Ve h i c l e s w i t h s m a l l r e a r e n d s ( t r a i l e r s w i t h n o l o a d o n b o a r d e t c . )
●Motorcycles traveling in the same lane
■Handling the radar sensor
Observe the following to ensure the pre-collision system can function effec-
tively:
●Keep the sensor and grille cover clean at all times.
Clean the sensor and grille cover with a soft cloth so you do not mark or
damage them.
●Do not subject the sensor or surrounding area to a strong impact.
If the sensor moves even slightly off position, the system may become
inaccurate or malfunction. If the sensor or surrounding area is subject to a
strong impact, always have the area inspected and adjusted by your
To y o t a d e a l e r .
●Do not disassemble the sensor.
●Do not attach accessories or stickers to the sensor, grille cover or sur-
rounding area.
●Do not modify or paint the sensor and grille cover.

356
2-5. Driving information
PRIUS PHV_OM_OM47A11U_(U)
■Before driving the vehicle
Perform the following according to the driving conditions:
●Do not try to forcibly open a window or move a wiper that is
frozen. Pour warm water over the frozen area to melt the ice.
Wipe away the water immediately to prevent it from freezing.
●To e n s u r e p r o p e r o p e r a t i o n o f t he climate control system fan,
remove any snow that has accumulated on the air inlet vents
in front of the windshield.
●Check for and remove any excess ice or snow that may have
accumulated on the exterior lights, vehicle’s roof, chassis,
around the tires or on the brakes.
●Remove snow or mud from the bottom of your shoes before
getting in the vehicle.
■When driving the vehicle
Accelerate the vehicle slowly, keep a safe distance between you
and the vehicle ahead, and drive at a reduced speed suitable to
road conditions.
■When parking the vehicle
Park the vehicle and shift the shift position to P and block the
wheel under the vehicle without setting the parking brake. The
parking brake may freeze up, preventing it from being released.
If necessary, block the wheels to prevent inadvertent sliding or
creeping.

440
4-2. Maintenance
PRIUS PHV_OM_OM47A11U_(U)
Luggage compartment
Ve h i c l e i n t e r i o r
ItemsCheck points
12-volt battery Check the connections. (oP. 4 7 6 )
ItemsCheck points
Accelerator pedal
•The accelerator pedal should
move smoothly (without uneven
pedal effort or catching).
Hybrid transmission “Park” mech-
anism
•When parked on a slope and the
shift position is in P, is the vehicle
securely stopped?
Brake pedal
•Does the brake pedal move
smoothly?
•Does the brake pedal have appro-
priate clearance from the floor?
(oP. 6 2 7 )
•Does the brake pedal have the
correct amount of free play?
(oP. 6 2 7 )
Brakes
•The vehicle should not pull to one
side when the brakes are applied.
•The brakes should work effec-
tively.
•The brake pedal should not feel
spongy.
•The brake pedal should not get
too close to the floor when the
brakes are applied.

462
4-3. Do-it-yourself maintenance
PRIUS PHV_OM_OM47A11U_(U)
CAUTION
■Replacing a tire
●Do not touch the disc wheels or the area around the brakes immedi-
ately after the vehicle has been driven.
After the vehicle has been driven the disc wheels and the area around
the brakes will be extremely hot. To u c h i n g t h e s e a r e a s w i t h h a n d s , f e e t
or other body parts while changing a tire, etc. may result in burns.
●Failure to follow these precautions could cause the wheel nuts to
loosen and the tire to fall off, resulting in death or serious injury.
• Have the wheel nuts tightened with a torque wrench to 76 ft•lbf (103
N•m, 10.5 kgf•m) as soon as possible after changing wheels.
• When installing a tire, only use wheel nuts that have been specifi-
cally designed for that wheel.
•If there are any cracks or deformations in the bolt screws, nut
threads or bolt holes of the wheel, have the vehicle inspected by
your Toyota dealer.
•When installing the wheel nuts, be sure to install the wheel nuts
with the tapered ends facing inward. (oP. 4 9 5 )
■After using the tools and jack
Before driving, make sure all the tools and jack are securely in place in
their storage location to reduce the possibility of personal injury during a
collision or sudden braking.

532
5-1. Essential information
PRIUS PHV_OM_OM47A11U_(U)
Emergency towing
If a tow truck is not available in an emergency, your vehicle may be
temporarily towed using a cable or chain secured to the emergency
towing eyelet. This should only be attempted on hard surfaced roads
for short distances at low speeds.
A driver must be in the vehicle to steer and operate the brakes. The
vehicle’s wheels, drive train, axles, steering and brakes must be in
good condition.
Emergency towing procedure
Ta k e o u t t h e t o w i n g e y e l e t . (oP. 5 7 4 )
Remove the eyelet cover using a
flathead screwdriver.
To p r o t e c t t h e b o d y w o r k , p l a c e a
rag between the screwdriver and
the vehicle body as shown in the
illustration.
Insert the towing eyelet into the
hole and tighten partially by
hand.
STEP 1
STEP 2
STEP 3

5
When trouble arises
533
5-1. Essential information
PRIUS PHV_OM_OM47A11U_(U)
Tighten down the towing eyelet
securely using a wheel nut
wrench or hard metal bar.
Securely attach a cable or chain to the towing eyelet.
Ta k e c a r e n o t t o d a m a g e t h e v e h i c l e b o d y.
Enter the vehicle being towed and start the hybrid system.
If the hybrid system does not start, turn the “POWER” switch to ON
mode.
Shift the shift position to N and release the parking brake.
STEP 4
■While towing
If the hybrid system is off, the power assist for the brakes and steering will
not function, making steering and braking more difficult.
■Wheel nut wrench
Wheel nut wrench is installed under the left front seat. (oP. 4 5 4 )
STEP 5
STEP 6
STEP7