cruise control TOYOTA PRIUS 2022 Owner's Guide

334
PRIUS_OM_OM47F01U_(U)
4-5. Using the driving support systems
■Automatic cancelation of c onstant speed control mode
Constant speed control mode is automatically canceled in the following situa-
tions:
● Actual vehicle speed is more than approximately 10 mph (16 km/h ) below
the set vehicle speed.
● Actual vehicle speed falls below approximately 20 mph (30 km/h) .
● VSC is activated.
● TRAC is activated for a period of time.
● When the VSC or TRAC system is turned off.
● When the brake control or output restriction control of a driving support sys-
tem operates. (For example: Pre-Collision System, Drive-Start C ontrol)
If constant speed control mode is automatically canceled for any reasons
other than the above, there may be a malfunction in the system. Contact your
Toyota dealer.
■ Brake operation
A brake operation sound may be heard and the brake pedal response may
change, but these are not malfunctions.
■ Warning messages and buzzers for d ynamic radar cruise control with
full-speed range
Warning messages and buzzers are used to indicate a system malfunction or
to inform the driver of the need for caution while driving. If a warning message
is shown on the multi-information display, read the message and follow the
instructions.( P. 289, 599)

337
PRIUS_OM_OM47F01U_(U)
4-5. Using the driving support systems
4
Driving
Cruise control
Use the cruise control to maintain a set speed without depressi ng the
accelerator pedal.
Use the cruise control on freeways and highways.
Indicators
Cruise control switch
Set speed
: If equipped
Summary of functions
1
2
3

338
PRIUS_OM_OM47F01U_(U)
4-5. Using the driving support systems
Press the “ON-OFF” button to
activate the cruise control.
Cruise control indicator will come
on.
Press the button again to deacti-
vate the cruise control.
Accelerate or decelerate, with
accelerator pedal operation, to
the desired vehicle speed
(above approximately 20 mph
[30 km/h]) and push the lever
down to set the speed.
Cruise control “SET” indicator will
come on.
The vehicle speed at the moment
the lever is released becomes the
set speed.
Setting the vehicle speed
1
2

340
PRIUS_OM_OM47F01U_(U)
4-5. Using the driving support systems
■Cruise control can be set when
●The shift position is in D.
● Vehicle speed is above approximately 20 mph (30 km/h).
■ Accelerating after setting the vehicle speed
●The vehicle can be accelerated by operating accelerator pedal. After accel-
erating, the set speed resumes.
● Even without canceling the cruise control, the set speed can be increased
by first accelerating the vehicle to the desired speed and then pushing the
lever down to set the new speed.
■ Automatic cancelatio n of cruise control
Cruise control is automatically canceled in any of the following situations.
● Actual vehicle speed falls more than approximately 10 mph (16 k m/h) below
the set speed.
At this time, the memorized set speed is not retained.
● Actual vehicle speed is below approximately 20 mph (30 km/h).
● VSC is activated.
● TRAC is activated for a period of time.
● When the VSC or TRAC system is turned off.
■ If “Cruise Control Malfunction Vi sit Your Dealer” is displayed on the
multi-information display
Press the “ON-OFF” button once to deactivate the system, and th en press
the button again to reactivate the system.
If the cruise control speed cannot be set or if the cruise cont rol cancels imme-
diately after being activated, there may be a malfunction in th e cruise control
system. Have the vehicle inspected by your Toyota dealer.

PRIUS_OM_OM47F01U_(U)
3414-5. Using the driving support systems
4
Driving
WARNING
■To avoid operating the cruise control by mistake
Switch the cruise control off using the “ON-OFF” button when not in use.
■ Situations unsuitable for cruise control
Do not use cruise control in any of the following situations.
Doing so may result in loss of control and could cause an accident resulting
in death or serious injury.
● Roads where there are pedestrians, cyclists, etc.
● In heavy traffic
● On roads with sharp bends
● On winding roads
● On slippery roads, such as those covered with rain, ice or snow
● On sharp inclines or declines
Vehicle speed may exceed the set speed when driving down a steep hill.
● During emergency towing

6017-2. Steps to take in an emergency
PRIUS_OM_OM47F01U_(U)
7
When trouble arises
■Warning messages
The warning messages explained below may differ from the actual messages
according to operation conditions and vehicle specifications.
■ System warning lights
The master warning light does not come on or flash in the following cases.
Instead, a separate system warning light will come on along wit h a message
or image shown on the multi-information display.
● “Antilock Brake System Malfunction Visit Your Dealer”:
The ABS warning light comes on. ( P. 589)
● “Braking Power Low Visit Your Dealer”:
The brake system warning light (yellow) will come on. ( P. 588)
● Indicates that a door is not fully closed while the vehicle is stopped.:
The Open door warning light comes on. ( P. 590)
■ If “Visit Your Dealer” is shown
The system or part shown on the multi-information display is malfunctioning.
Have the vehicle inspected by your Toyota dealer.
■ If a message about an operation is shown
● If a message about an operation of the accelerator pedal or bra ke pedal is
shown
• A warning message about an operation of the brake pedal may be shown
while the driving assist systems such as PCS (Pre-Collision System) (if
equipped) or the dynamic radar cruise control with full-speed r ange (if
equipped) is operating. If a warning message is shown, be sure to decel-
erate the vehicle or follow an instruction shown on the multi-i nformation
display.
• A warning message is shown when Brake Override System operates .
(  P. 223, 604)
• A warning message is shown when Drive-Start Control or Parking Sup-
port Brake function (if equipped) operates ( P. 224, 376). Follow the
instructions on the multi-information display.
● If a message about an operation of the power switch is shown
An instruction for operation of the power switch is shown when the incorrect
procedure for starting the hybrid system is performed or the power switch is
operated incorrectly. Follow the instructions shown on the mult i-information
display to operate the power switch again.
● If a message about a shift operation is shown
To prevent the shift position from being selected incorrectly o r the vehicle
from moving unexpectedly, the shift position may be changed aut omatically
( P. 251) or shift operation may be required. In this case, chang e the shift
position following the instructions on the multi-information display.
● If a message or image about an open/close state of a part or replenishment
of a consumable is shown
Confirm the part indicated by the multi-information display or a warning light,
and then perform the coping method such as closing the open doo r or
replenishing a consumable.

6057-2. Steps to take in an emergency
PRIUS_OM_OM47F01U_(U)
7
When trouble arises
■If a message that indicates the malfunction of front camera is displayed
The following systems may be suspended until the problem shown in the
message is resolved. ( P. 289, 588)
● PCS (Pre-Collision System) (if equipped)
● LTA (Lane Tracing Assist) (if equipped)
● AHB (Automatic High Beam) (if equipped)
● RSA (Road Sign Assist) (if equipped)
● Dynamic radar cruise control with full-speed range (if equipped )
■ If a message that indicates the m alfunction of radar sensor is displayed
The following systems may be suspended until the problem shown in the
message is resolved. ( P. 289, 588)
● PCS (Pre-Collision System) (if equipped)
● LTA (Lane Tracing Assist) (if equipped)
● Dynamic radar cruise control with full-speed range (if equipped )
■ If “Radar Cruise Control Unavailable See Owner’s Manual” is sho wn
The dynamic radar cruise control with full-speed range system is suspended
temporarily or until the problem shown in the message is resolv ed. (causes
and coping methods: P. 289)
■ If “Radar Cruise Control Unavailable” is shown
The dynamic radar cruise control with full-speed range system c annot be
used temporarily. Use the system when it becomes available agai n.
■ If “Maintenance Required Soon” is displayed (U.S.A. only)
Indicates that all maintenance according to the driven distance on the mainte-
nance schedule
* should be performed soon.
Comes on approximately 4500 miles (7200 km) after the message has been
reset.
If necessary, perform maintenance. Please reset the message aft er the main-
tenance is performed. ( P. 502)
*: Refer to the separate “Scheduled Maintenance Guide” or “Owner’ s Manual
Supplement” for the maintenance interval applicable to your veh icle.
■ If “Maintenance Required Visit Your Dealer” is displayed (U.S.A . only)
Indicates that all maintenance is required to correspond to the driven distance
on the maintenance schedule
*.
Comes on approximately 5000 miles (8000 km) after the message has been
reset. (The indicator will not work properly unless the message has been
reset.)
Perform the necessary maintenance. Please reset the message aft er the
maintenance is performed. ( P. 502)
*: Refer to the separate “Scheduled Maintenance Guide” or “Owner’ s Manual
Supplement” for the maintenance interval applicable to your veh icle.

6397-2. Steps to take in an emergency
PRIUS_OM_OM47F01U_(U)
7
When trouble arises
WARNING
■When using the compact spare tire (if equipped)
●Remember that the spare tire provided is specifically designed for use
with your vehicle. Do not use yo ur spare tire on another vehicle.
●Do not use more than one compact spare tire simultaneously.
●Replace the spare tire with a st andard tire as soon as possible .
●Avoid sudden acceleration, abrupt steering, sudden braking and shift-
ing operations that cause sudden engine braking.
■When the compact spare tire is attached (if equipped)
The vehicle speed may not be co rrectly detected, and the following sys-
tems may not operate correctly:
Also, not only can the following system not be utilized fully, but it may
even negatively affect the drive-train components:
• E-Four (Electric Four wheel drive system)
*
*
: If equipped
■Speed limit when using the co mpact spare tire (if equipped)
Do not drive at speeds in excess of 50 mph (80 km/h) when a com pact
spare tire is installed on the vehicle.
The compact spare tire is not designed for driving at high spee ds. Fail-
ure 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 t he tools and jack are securely i n place in
their storage location to reduce the possibility of personal in jury during a
collision or sudden braking.
• ABS & Brake assist
• VSC
• TRAC
• EPS
• AHB (Automatic High Beam)
*
• PCS (Pre-Collision System)*
• LTA (Lane Tracing Assist)*
• Dynamic radar cruise control with full-speed range
*
• Cruise control*
• BSM (Blind Spot Monitor)*
• Intuitive parking assist*
• Parking Support Brake function*
• S-APGS (Simple Advanced Parking Guidance System)
*
• Rear view monitor system
• Navigation system
*

723Alphabetical index
PRIUS_OM_OM47F01U_(U)
CleaningAluminum wheels.................. 493
Exterior ................................. 492
Front camera ........................ 285
Hybrid battery (traction
battery) air intake vent ........ 546
Interior................................... 498
Radar sensor ........................ 284
Seat belts .............................. 499
Water-repellent coating......... 493
Clock ........................................... 98
Adjustment ............................ 103
Coat hooks ............................... 480
Combination meter .................... 98 Clock adjustment .................. 103
Main display .......................... 115
Multi-information display ....... 124
Warning lights and indicators ............................ 107
Condenser ................................ 520
Console box ............................. 456
Consumption screen ....... 165, 170
Coolant ..................................... 518
Capacity ................................ 666
Checking ............................... 518
Preparing and checking before winter....................... 425
Cooling system ........................ 518 Engine overheating ............... 652
Hybrid system overheating ... 654
Cruise control Cruise control........................ 337
Dynamic radar cruise control with full-speed range .......... 321
Cup holders.............................. 457
Curtain shield airbags ............... 35
Customizable features ............ 686 Daytime running light
system.................................... 260
Deck board ............................... 461
Defogger Outside rear view
mirrors ........................ 434, 444
Rear window ................. 434, 444
Windshield .................... 434, 444
Dimension ................................ 660
Dinghy towing.......................... 238
Display BSM (Blind Spot Monitor) ..... 344
Drive information .................. 126
Dynamic radar cruise control with full-speed range .......... 321
Energy monitor ..... 127, 165, 170
Head-up display.................... 158
Intuitive parking assist .......... 359
LTA (Lane Tracing Assist) .... 311
Main display.......................... 115
Multi-information display ....... 124
Parking Support Brake function............................... 376
RCTA detection screen ........ 344
RSA (Road Sign Assist) ....... 318
S-APGS (Simple Advanced Parking Guidance
System) .............................. 385
Pre-collision warning ............ 292
Trip information..................... 119
Warning messages ............... 599
Do-it-yourself maintenance .... 508
Door courtesy lights ............... 452 Location ................................ 452
Wattage ................................ 670D
*: Refer to “MULTIMEDIA OWNER’S MANUAL”.

724Alphabetical index
PRIUS_OM_OM47F01U_(U)
DoorsAutomatic door locking and
unlocking system ................ 184
Back door.............................. 187
Door glasses ......................... 212
Door lock............................... 181
Open door warning buzzer ... 185
Open door warning light........ 590
Outside rear view mirrors...... 210
Rear door child-protectors .... 184
Side doors............................. 181
Side windows ........................ 212
Drive information ..................... 126
Drive-Start Control (DSC) ....... 223 Sudden start restraint control................................. 223
Driver’s seat belt reminder
light......................................... 591
Driving ...................................... 222 Break-in tips .......................... 224
Correct driving posture ........... 28
Driving in the rain .................. 223
Driving mode select switch ... 342
Hybrid vehicle driving tips ..... 422
Procedures ........................... 222
Winter drive tips .................... 425
DSC (Drive-Start Control) ....... 223
Sudden start restraint control................................. 223
Dynamic radar cruise control
with full-speed range ............ 321
ECB (Electronically Controlled Brake System) .... 415
Eco drive mode ........................ 342
EDR (Event data recorder) ........ 11
Electric motor (traction motor) Location .................................. 84
Specification ......................... 663 Electric Power Steering
(EPS) ...................................... 416
Function ................................ 416
Warning light......................... 589
Electronic key .......................... 176
Battery-saving function ......... 194
If the electronic key does not operate properly ........... 643
Replacing the battery............ 555
Electronically Controlled Brake System (ECB) ............. 415
Emergency flashers ................ 576
Emergency tire puncture repair kit ................................. 609
Emergency, in case of If a warning buzzer sounds... 588
If a warning light turns on ..... 588
If a warning message is displayed ............................ 599
If the 12-volt battery is
discharged.......................... 646
If the electronic key does not operate properly ........... 643
If the hybrid system will not start .............................. 641
If the vehicle becomes stuck ................................... 657
If the vehicle is submerged or water on the road is
rising................................... 578
If you have a flat tire ..... 607, 627
If you lose your keys ..... 177, 180
If you think something is wrong .............................. 587
If your vehicle has to be stopped in an emergency ... 577
If your vehicle needs to be towed.................................. 580
If your vehicle overheats....... 652
Energy monitor ........ 127, 165, 170
E