cruise control TOYOTA PRIUS PLUS 2017 Owner's Manual

2514-5. Using the driving support systems
4
Driving
PRIUS +_OM_OM47B24E_(EE)
WARNING
■ Before using dynamic radar cruise control
Do not overly rely on vehicle-to-vehicle distance control.
Be aware of the set speed. If automatic deceleration/acceleration is not
appropriate, adjust the vehicle speed, as well as the distance between your
vehicle and vehicles ahead by applying the brakes etc.
■ Cautions regarding the driving assist systems
Observe the following precautions.
Failure to do so may cause an accident resulting in death or serious injury.
●Assisting the driver to measure following distance
The dynamic radar cruise control is only intended to help the driver in
determining the following distance between the driver’s own vehicle and a
designated vehicle traveling ahead. It is not a mechanism that allows care-
less or inattentive driving, and it is not a system that can assist the driver in
low-visibility conditions. It is still necessary for driver to pay close attention
to the vehicle’s surroundings.
● Assisting the driver to judge proper following distance
The dynamic radar cruise control det ermines whether the following dis-
tance between the driver’s own vehicle and a designated vehicle traveling
ahead is appropriate or not. It is not capable of making any other type of
judgement. Therefore, it is absolutely necessary for the driver to remain
vigilant and to determine whether or not there is a possibility of danger in
any given situation.
● Assisting the driver to operate the vehicle
The dynamic radar cruise control has no capability to prevent or avoid a
collision with a vehicle traveling ahead. Therefore, if there is ever any dan-
ger, the driver must take immediate and direct control of the vehicle and
act appropriately in order to ens ure the safety of all involved.
■ To avoid inadvertent cr uise control activation
Switch the cruise control off using the “ON-OFF” button when not in use.

2524-5. Using the driving support systems
PRIUS +_OM_OM47B24E_(EE)
WARNING
■ Situations unsuitable for dynamic radar cruise control
Do not use dynamic radar cruise control in any of the following situations.
Doing so may result in inappropriate speed control and could cause an acci-
dent resulting in death or serious injury.
●Except on highways or expressways
● In heavy traffic
● On roads with sharp bends
● On winding roads
● On slippery roads, such as those covered with rain, ice or snow
● On steep downhills, or where ther e are sudden changes between sharp up
and down gradients
Vehicle speed may exceed the set speed when driving down a steep hill.
● At entrances to expressways
● When weather conditions are bad enough that they may prevent the sen-
sors from functioning correctly (fog, snow, sandstorm, heavy rain, etc.)
● When an approach warning buzzer is heard often
■ When the sensor may not be correctly detecting the vehicle ahead
Apply the brakes (or accelerator pedal) as necessary when any of the fol-
lowing types of vehicles are in front of you.
As the sensor may not be able to correctly detect these types of vehicles,
the approach warning ( →P. 246) will not be activated, and a fatal or serious
accident may result.
● Vehicles that cut in suddenly
● Vehicles traveling at low speeds
● Vehicles that are not moving in the same lane
● Vehicles with small rear ends (trailers with no load on board etc.)
● Motorcycles traveling in the same lane
● When water or snow thrown up by the surrounding vehicles hinders the
detecting of the sensor

2544-5. Using the driving support systems
PRIUS +_OM_OM47B24E_(EE)
WARNING
■ Handling the radar sensor
Observe the following to ensure the cruise control system can function
effectively.
Otherwise, the system may not function correctly and could result in an
accident.
●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 any autho-
rized Toyota dealer or repairer, or another duly qualified and equipped pro-
fessional.
● 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.
● If the sensor needs to be replaced, contact any authorized Toyota dealer
or repairer, or another duly qualified and equipped professional.

3917-2. Steps to take in an emergency
PRIUS +_OM_OM47B24E_(EE)
7
When trouble arises
(If equipped)
Hybrid system overheat warning light (warning buzzer)The hybrid system has overheated
This light may come on when driving under severe operat-
ing conditions, and the output of the hybrid system may
temporarily decrease in order to protect the system. (For
example, when driving up a long steep hill or driving up a
steep hill in reverse.)
→ Stop and check. ( →P. 457)
(If equipped)
Cruise control indicator (yellow indicator)
Indicates a malfunction in the cruise control
→ Have the vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional immediately.
(Only outer frame flashes)
(If equipped)
Low hybrid battery (traction battery) warning light
(warning buzzer)
Hybrid battery (traction battery) level becomes low
because the shift position is in N for long time
→ Because recharging is not possible when the shift
position is in N, shift the shift position to P when
parking the vehicle for a long time.
High coolant temperature warning light
Changes from a flashing to a solid light when the engine
coolant temperature increases
→ Immediately stop the vehicle in a safe place.
(→ P. 457)
Automatic headlight leveling system warning light
Indicates a malfunction in the automatic headlight leveling
system
→ Have the vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional immediately.
Open door warning light (warning buzzer)*3
Indicates that a door is not fully closed
→ Check that all the doors are closed.
Low fuel level warning light
Indicates that remaining fuel is approximately 6.0 L (1.6
gal., 1.3 Imp.gal.) or less
→ Refuel the vehicle.
Warning lightWarning light/Details/Actions

4027-2. Steps to take in an emergency
PRIUS +_OM_OM47B24E_(EE)
Indicates a malfunction in the shift control systemIn this situation, there is a possibility that the
parking lock mechanism will not work. When
parking, park the vehicle on a flat surface and
apply the parking brake securely. Also, it may
not be possible to turn the power switch off. If
this happens, applying the parking brake will
enable the switch to be turned off. A buzzer
also sounds.
→ Have the vehicle inspected by any autho-
rized Toyota dealer or repairer, or another
duly qualified and equipped professional.
Indicates a malfunction in the hybrid system
A buzzer also sounds.
→ Immediately stop the vehicle in a safe place
and contact any authorized Toyota dealer
or repairer, or another duly qualified and
equipped professional.
Indicates that the hybrid battery (traction battery)
is low
A buzzer also sounds.
→ When stopping the vehicle for a long
period of time, shift the shift position to P.
The battery cannot be charged with the
shift position in N.
(If equipped)
Indicates that the radar cruise control sensor is
dirty or covered with ice
A buzzer also sounds.
→ Clean the sensor.
(If equipped)
Indicates that the dynamic radar cruise control
system is unable to judge vehicle-to-vehicle dis-
tance
A buzzer also sounds.
→ If the windshield wipers are on, turn them
off or set them to either intermittent or slow
mode.
Warning messageDetails/Actions
(Flashes)

4037-2. Steps to take in an emergency
PRIUS +_OM_OM47B24E_(EE)
7
When trouble arises
(If equipped)
Indicates a malfunction in:
• The cruise control system; or
• The dynamic radar cruise control system
Press the “ON-OFF” button once to deactivate
the system, and then press the button again to
reactivate the system.A buzzer also sounds.
→ Have the vehicle inspected by any autho-
rized Toyota dealer or repairer, or another
duly qualified and equipped professional.
(If equipped)
Indicates a malfunction in the pre-crash safety
system
A buzzer also sounds.
→ Have the vehicle inspected by any autho-
rized Toyota dealer or repairer, or another
duly qualified and equipped professional
immediately.
Indicates an engine oil pressure malfunction
A buzzer also sounds.
→ Immediately stop the vehicle in a safe place
and contact any authorized Toyota dealer
or repairer, or another duly qualified and
equipped professional.
Indicates that the hybrid system has overheated
This message may be displayed when driving
under severe operating conditions, and the out-
put of the hybrid system may temporarily
decrease in order to protect the system. (For
example, when driving up a long steep hill or
driving up a steep hill in reverse.)
A buzzer also sounds.
→ Stop and check. ( →P. 457)
(If equipped)
Indicates that the pre-crash safety system is not
currently functional
→ Check the grille cover and the sensor and
clean them if they are dirty.
Warning messageDetails/Actions
(Flashes)
(Flashes)

4117-2. Steps to take in an emergency
PRIUS +_OM_OM47B24E_(EE)
7
When trouble arises
■Warning messages
The warning message illustrations used are intended as examples, and may
differ from the image that is actually displayed on the multi-information dis-
play.
■ Warning message in radar cruise mode (if equipped)
In the following situations, the warning message may not be displayed even if
vehicle-to-vehicle distance decreases:
●When your vehicle and the vehicle ahead are traveling at the same speed or
the vehicle ahead is traveling more quickly than your vehicle
● When the vehicle ahead is traveling at a very low speed
● Immediately after cruise control speed is set
● At the instant the accelerator pedal is depressed
■ Warning buzzer
→ P. 395

4297-2. Steps to take in an emergency
PRIUS +_OM_OM47B24E_(EE)
7
When trouble arises
WARNING
■ When using the compact spare tire
●Remember that the spare tire provided is specifically designed for use with
your vehicle. Do not use your spare tire on another vehicle.
● Do not use more than one compact spare tire simultaneously.
● Replace the spare tire with a standard tire as soon as possible.
● Avoid sudden acceleration, abrupt steering, sudden braking and shifting
operations that cause sudden engine braking.
■ When the compact spare tire is attached
The vehicle speed may not be correctly detected, and the following systems
may not operate correctly:
■ Speed limit when using the compact spare tire
Do not drive at speeds in excess of 80 km/h (50 mph) when a compact
spare tire is installed on the vehicle.
The compact spare tire is not designed for driving at high speeds. Failure to
observe this precaution may lead to an accident causing death or serious
injury.
■ 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.
• ABS & Brake assist
• VSC
•TRC
•Cruise control
*
• Dynamic radar cruise control*
• PCS (Pre-Crash Safety system)*
• EPS
• Rear view monitor system
*
• IPA (Intelligent Parking Assist)*
• Navigation system*
*
: If equipped

492Alphabetical index
PRIUS +_OM_OM47B24E_(EE)
Card holder............................... 298
CareAluminum wheels .................. 311
Exterior.................................. 310
Interior ................................... 315
Panoramic roof...................... 314
Radar sensor ................ 254, 269
Seat belts .............................. 316
Cargo hooks ............................. 299
CD player
*
Chains ....................................... 275
Child restraint system ............... 59 Baby seat definition................. 60
Baby seat installation .............. 68
Child seat definition................. 60
Child seat installation .............. 70
Installing CRS with ISOFIX rigid anchors ......................... 74
Installing CRS with seat belt ... 68
Installing CRS with top strap ... 76
Junior seats definition ............. 60
Junior seat installation ............ 72
Child safety ................................ 58 12-volt battery precautions.... 339
Airbag precautions .................. 48
Back door precautions .......... 150
Child restraint system ............. 59
How your child should wear the seat belt .......................... 42
Installing child restraints.......... 67
Power window lock switch .... 191
Power window precautions ... 193 Rear door child-protectors .... 147
Removed key battery
precautions......................... 362
Seat belt precautions .............. 44
Seat heater precautions........ 289
Child-protectors....................... 147
Cleaning Aluminum wheels.................. 311
Exterior ................................. 310
Interior................................... 315
Panoramic roof ..................... 314
Radar sensor ................ 254, 269
Seat belts .............................. 316
Climate remote control ........... 288
Clock ......................................... 303
Condenser ................................ 334
Console box ............................. 294
Coolant Capacity ................................ 470
Checking ............................... 333
Preparing and checking before winter....................... 274
Cooling system ........................ 333 Hybrid system overheating ... 457
Consumption screen ............... 133
Cruise control Cruise control........................ 235
Dynamic radar cruise control................................. 239
Warning messages ............... 403
Cup holders.............................. 295
Curtain shield airbags ............... 46
Customizable features ............ 477
C

493Alphabetical index
PRIUS +_OM_OM47B24E_(EE)
Daytime running light system .................................... 224
Defogger Outside rear view mirrors ...... 283
Rear window ......................... 283
Windshield ............................ 283
Dimension ................................ 464
Display Drive information ................... 122
Dynamic radar cruise control................................. 239
Energy monitor............... 122,133
Multi-information display ....... 120
Trip information ..................... 115
Warning messages ............... 400
Do-it-yourself maintenance .... 321
Door courtesy lights ................ 290 Location ................................ 290
Wattage................................. 474
Doors Back door .............................. 148
Door glasses ......................... 191
Door lock ............................... 144
Open door warning buzzer.... 391
Open door warning light ........ 391
Outside rear view mirrors ...... 189
Rear door child-protectors .... 147
Side doors ............................. 144
Double locking system.............. 97
Drive information ..................... 122
Driver’s seat belt reminder light ......................................... 392 Driving
Break-in tips .......................... 197
Correct posture ....................... 36
Driving in the rain .................. 197
Driving mode select switch ... 255
Hybrid vehicle driving tips ..... 271
Procedures ........................... 196
Winter drive tips .................... 274
Dynamic radar cruise control Function ................................ 239
Warning message ................. 403
ECB (Electronically Controlled Brake System) .... 256
Eco drive mode ........................ 255
Electric motor Location .................................. 81
Specification ......................... 467
Electric Power Steering (EPS) Function ................................ 256
Warning light ......................... 388
Electronic key If the electronic key does not operate properly ................. 450
Replacing the battery ............ 361
Electronically Controlled
Brake System (ECB) ............. 256
Emergency brake signal ......... 257
Emergency flashers ................ 378
D
E
*: Refer to the “Navigation and multimedia system Owner’s Manual”.