power steering TOYOTA PRIUS PLUS 2015 User Guide

2504-5. Using the driving support systems
PRIUS +_OM_OM47B16E_(EE)
■Sounds and vibrations caused by the ABS, brake assist, VSC, TRC and
hill-start assist control systems
Any of the following conditions may occur when the above systems are oper-
ating. None of these indicates that a malfunction has occurred.
●Vibrations may be felt through the vehicle body and steering.
● A motor sound may be heard after the vehicle comes to a stop.
● The brake pedal may pulsate slightly after the ABS is activated.
● The brake pedal may move down slightly after the ABS is activated.
■ ECB operating sound
ECB operating sound may be heard in the following cases, but it does not
indicate that a malfunction has occurred.
●Operating sound heard from the engine compartment when the brake pedal
is operated.
● Motor sound of the brake system heard from the front part of the vehicle
when the driver’s door is opened.
● Operating sound heard from the engine compartment when 1-2 minutes
passed after the stop of the hybrid system.
■ EPS operation sound
When the steering wheel is operated, a motor sound (whirring sound) may be
heard. This does not indicate a malfunction.
■ Reduced effectiveness of the EPS system
The effectiveness of the EPS system is reduced to prevent the system from
overheating when there is frequent steering input over an extended period of
time. The steering wheel may feel heavy as a result. Should this occur, refrain
from excessive steering input or stop the vehicle and turn the hybrid system
off. The EPS system should return to normal within 10 minutes.
■ Electric power steering system warning light (warning buzzer)
→ P. 377

269
5Interior features
PRIUS +_OM_OM47B16E_(EE)5-1. Using the air conditioning
system and defogger
Automatic air conditioning system ............................. 270
Using the steering wheel climate remote control
switches ........................... 278
Seat heaters ......................279
5-2. Using the interior lights Interior lights list ................. 280• Front interior light .......... 281
• Front personal lights ...... 281
• Rear interior light ........... 282
5-3. Using the storage features List of storage features ...... 283• Glove boxes .................. 284
• Console box .................. 284
• Cup holders/ bottle holders/
door pockets .................. 285
• Auxiliary boxes .............. 287
• Card holders .................. 288
Luggage compartment features............................ 289
5-4. Using the other interior features
Other interior features ........ 292 • Sun visors...................... 292
• Vanity mirrors ................ 292
• Clock ............................. 293
• Power outlet .................. 294
• Assist grips .................... 295
• Panoramic roof shades ........................... 296
• Rear sunshades ............ 298

3697-1. Essential information
PRIUS +_OM_OM47B16E_(EE)
7
When trouble arises
If your vehicle has to be stopped in an
emergency
Steadily step on the brake pedal with both feet and firmly depress it.
Do not pump the brake pedal repeatedly as this will increase the effort
required to slow the vehicle.
Shift the shift position to N.
XIf the shift position is shifted to N
After slowing down, stop the vehicle in a safe place by the road.
Stop the hybrid system.
XIf the shift position cannot be shifted to N
Keep depressing the brake pedal with both feet to reduce vehicle
speed as much as possible.
To stop the hybrid system,
press and hold the power
switch for 2 consecutive sec-
onds or more, or press it briefly
3 times or more in succession.
Stop the vehicle in a safe place by the road.
Only in an emergency, such as if it becomes impossible to stop
the vehicle in the normal way, stop the vehicle using the follow-
ing procedure:
1
2
3
4
3
Press and hold for 2 seconds or more,
or press briefly 3 times or more
4
WARNING
■ If the hybrid system has to be turned off while driving
Power assist for the steering wheel will be lost, making the steering wheel
heavier to turn. Decelerate as much as possible before turning off the hybrid
system.
5

3747-2. Steps to take in an emergency
PRIUS +_OM_OM47B16E_(EE)
■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 in luggage compartment. ( →P. 405, 419)
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■ When towing the vehicle
■ While towing
●When towing using cables or chains, avoid sudden starts, etc. which place
excessive stress on the towing eyelet, cables or chains. The towing eyelet,
cables or chains may become damaged, broken debris may hit people and
cause serious damage.
● Do not turn the power switch off.
This may lead to an accident as the front wheels will be locked by the
parking lock.
■ Installing towing eyelet to the vehicle
Make sure that towing eyelet is installed securely.
If not securely installed, towing ey elet may come loose during towing.
NOTICE
■ To prevent damage to the vehicle when towing using a wheel-lift type
truck
When raising the vehicle, ensure adequate ground clearance for towing at
the opposite end of the raised vehicle. Without adequate clearance, the
vehicle could be damaged while being towed.
■ To prevent body damage when towing with a sling-type truck
Do not tow with a sling-type truck, either from the front or rear.
Be sure to transport the vehicle with the
front wheels raised or with all four wheels
raised off the ground. If the vehicle is
towed with the front wheels contacting
the ground, the drivetrain and related
parts may be damaged or electricity gen-
erated by the operation of the motor may
cause a fire to occur depending on the
nature of the damage or malfunction.

3777-2. Steps to take in an emergency
PRIUS +_OM_OM47B16E_(EE)
7
When trouble arises
(If equipped)
Low engine oil pressure warning lightIndicates that the engine oil pressure is too low
→ Immediately stop the vehicle in a safe place and con-
tact any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional.
(If equipped)
Hybrid system warning light (warning buzzer)
Indicates a malfunction in the hybrid system
→ Immediately stop the vehicle in a safe place and con-
tact any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional.
Malfunction indicator lamp
Indicates a malfunction in:
• The hybrid system;
• The electronic engine control system; or
• The electronic throttle control system
→ Have the vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional immediately.
SRS warning light Indicates a malfunction in:
• The SRS airbag system; or
• The seat belt pretensioner system
→ Have the vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional immediately.
ABS warning light Indicates a malfunction in:
• The ABS; or
• The brake assist system
→ Have the vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional immediately.
Electric power steering system warning light (warning
buzzer) Indicates a malfunction in the EPS system
→ Have the vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional immediately.
Warning lightWarning light/Details/Actions

3837-2. Steps to take in an emergency
PRIUS +_OM_OM47B16E_(EE)
7
When trouble arises
■Electric power steering system warning light (warning buzzer)
When the 12-volt battery charge becomes insufficient or the voltage tempo-
rarily drops, the electric power steering system warning light may come on
and the warning buzzer may sound.
■ If the malfunction indicator lamp comes on while driving
The malfunction indicator lamp will come on if the fuel tank becomes com-
pletely empty. If the fuel tank is empt y, refuel the vehicle immediately. The
malfunction indicator lamp will go off after several trips.
If the malfunction indicator lamp does not go off, contact any authorized
Toyota dealer or repairer, or another duly qualified and equipped professional
as soon as possible.
■ When the tire pressure warning light comes on
Inspect the appearance of the tire to check that the tire is not punctured.
If the tire is punctured: →P. 404, 418
If the tire is not punctured:
Carry out the following procedure after the tire temperature has lowered suffi-
ciently.
● Check the tire inflation pressure and adjust to the appropriate level.
● If the warning light does not go out even after several minutes, check that
the tire inflation pressure is at the specified level and carry out initialization.
(→ P. 333)
The warning light may come on again if the above operations are conducted
without first allowing the tire temperature to lower sufficiently.
■ The tire pressure warning light may come on due to natural causes
The tire pressure warning light may turn on due to natural causes such as
natural air leaks or tire inflation pressure changes caused by temperature. In
this case, adjusting the tire inflation pressure will turn off the warning light
(after a few minutes).
■ When a tire is replaced with a spare tire
The compact spare tire is not equipped with a tire pressure warning valve and
transmitter. If a tire goes flat, the tire pressure warning light will not turn off
even though the flat tire has been replaced with the spare tire. Replace the
spare tire with the repaired tire and adjus t the tire inflation pressure. The tire
pressure warning light will go off after a few minutes.

3857-2. Steps to take in an emergency
PRIUS +_OM_OM47B16E_(EE)
7
When trouble arises
WARNING
■ If both the ABS and the brake system warning lights remain on
Stop your vehicle in a safe place immediately and contact any authorized
Toyota dealer or repairer, or another duly qualified and equipped profes-
sional. The vehicle will become extremely unstable during braking, and the
ABS system may fail, which could cause an accident resulting in death or
serious injury.
■ When the electric power steering system warning light comes on
The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than usual when operating, hold
firmly and operate using more force than usual.
■ If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could cause a
loss of vehicle control and result in death or serious injury.
●Stop your vehicle in a safe place as soon as possible. Adjust the tire infla-
tion pressure immediately.
● Vehicles with a spare tire: If the tire pressure warning light comes on even
after tire inflation pressure adjustment, it is probable that you have a flat
tire. Check the tires. If a tire is fl at, change it with the spare tire and have
the flat tire repaired by the nearest any authorized Toyota dealer or
repairer, or another duly qualified and equipped professional.
● Vehicles with an emergency tire puncture repair kit: If the tire pressure
warning light comes on even after tire inflation pressure adjustment, it is
probable that you have a flat tire. Check the tires. If a tire is flat, repair the
flat tire by using emergency tire puncture repair kit.
● Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you
could lose control of the steering wheel or the brakes.
■ If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.
NOTICE
■To ensure the tire pressure warning system operates properly
Do not install tires with different specifications or makers, as the tire pres-
sure warning system may not operate properly.

481Alphabetical index
PRIUS +_OM_OM47B16E_(EE)
Daytime running light system .................................... 216
Defogger Outside rear view mirrors ...... 273
Rear window ......................... 273
Windshield ............................ 273
Dimension ................................ 452
Display Drive information ................... 120
Dynamic radar cruise control................................. 231
Energy monitor............... 120,131
Multi-information display ....... 118
Trip information ..................... 113
Warning messages ............... 388
Do-it-yourself maintenance .... 311
Door courtesy lights ................ 280 Location ................................ 280
Wattage................................. 462
Doors Back door .............................. 146
Door glasses ......................... 186
Door lock ............................... 142
Open door warning buzzer.... 380
Open door warning light ........ 380
Outside rear view mirrors ...... 184
Rear door child-protectors .... 145
Side doors ............................. 142
Double locking system.............. 96
Drive information ..................... 120
Driver’s seat belt reminder light ......................................... 381 Driving
Break-in tips .......................... 191
Correct posture ....................... 36
Driving in the rain .................. 191
Driving mode select switch ... 247
Hybrid vehicle driving tips ..... 262
Procedures ........................... 190
Winter drive tips .................... 265
Dynamic radar cruise control Function ................................ 231
Warning message ................. 391
ECB (Electronically Controlled Brake System) .... 248
Eco drive mode ........................ 247
Electric motor Location .................................. 81
Specification ......................... 455
Electric Power Steering (EPS) Function ................................ 248
Warning light ......................... 377
Electronic key If the electronic key does not operate properly ................. 437
Replacing the battery ............ 351
Electronically Controlled
Brake System (ECB) ............. 248
Emergency brake signal ......... 249
Emergency flashers ................ 368
D
E
*: Refer to the “Navigation and multimedia system Owner’s Manual”.

483Alphabetical index
PRIUS +_OM_OM47B16E_(EE)
Engine oilCapacity ................................ 455
Checking ............................... 319
Oil pressure warning light ..... 377
Preparing and checking before winter....................... 265
Engine switch........................... 201 Auto power off function ......... 203
Changing the power switch modes................................. 203
If your vehicle has to be stopped in an emergency ... 369
Starting the hybrid system .... 201
Engine switch light (power switch light) ........................... 280
EPS (Electronic Power Steering) Function ................................ 248
Warning light ......................... 377
EV indicator .............................. 114
EV drive mode .......................... 206
Exhaust gas precautions .......... 80 Flat tire.............................. 404, 418
Floor mats .................................. 34
Fluid
Brake .................................... 460
Transmission ........................ 459
Washer ................................. 325
Fog lights Replacing light bulbs..... 359, 362
Switch ................................... 218
Wattage ................................ 462
Footwell lights ......................... 280
Front doors .............................. 142
Front fog lights Replacing light bulbs............. 359
Switch ................................... 218
Wattage ................................ 462
Front passenger’s seat belt reminder light ........................ 381
Front position lights Light switch ........................... 215
Replacing light bulbs............. 364
Front seats ............................... 165 Adjustment ............................ 165
Cleaning................................ 305
Correct driving posture ........... 36
Head restraints ..................... 177
Seat heaters ......................... 279
Front turn signal lights Replacing light bulbs............. 361
Turn signal lever ................... 213
Wattage ................................ 462F

487Alphabetical index
PRIUS +_OM_OM47B16E_(EE)
Navigation system*
Odometer .................................. 111
OilEngine oil .............................. 455
Opener Fuel filler door ....................... 226
Hood ..................................... 313
Outside rear view mirrors ....... 184 Adjustment ............................ 184
Folding .................................. 184
Outside rear view mirror defoggers............................ 273
Outside temperature display .................................... 275
Overhead console.................... 287
Overheating .............................. 444
Overheating, Engine ................ 444 P position switch ..................... 209
Parking brake
Operation .............................. 214
Parking brake engaged warning buzzer ................... 382
Parking lock ............................. 209
PCS (Pre-Crash Safety system) Function ................................ 254
PCS switch ........................... 255
Warning light ......................... 378
Warning message ......... 391, 392
Personal lights ......................... 280 Switch ................................... 281
Wattage ................................ 462
Pollen removal mode .............. 273
Power control unit coolant
Capacity ................................ 458
Checking ............................... 323
Preparing and checking before winter....................... 265
Radiator ................................ 324
Power outlets ........................... 294
Power steering (Electric Power Steering system) ....... 248Warning light ......................... 377
N
O
P
*: Refer to the “Navigation and multimedia system Owner’s Manual”.