2019 TOYOTA PRIUS PRIME cruise control

410
PRIUS PRIME_OM_OM47D13U_(U)
5-5. Using the driving support systems
When constant speed control mode is selected, your vehicle will main-
tain a set speed without controllin g the vehicle-to-vehicle distance.
Select this mode only when vehic le-to-vehicle distance control mode
does not function correctly due to a dirty radar sensor, etc.
With the cruise control off,
press and hold the “ON-OFF”
button for 1.5 seconds or more.
Immediately after the “ON-OFF”
button is pressed, the radar cruise
control indicator will come on.
Afterwards, it switches to the cruise
control indicator.
Switching to constant speed con-
trol mode is only possible when
operating the lever with the cruise
control off.
Accelerate or decelerate, with
accelerator pedal operation, to
the desired vehicle speed (at or
above approximately 30 mph
[50 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.
Adjusting the speed setting: P. 406
Canceling and resuming the speed setting: P. 408
Selecting constant speed control mode
1
2

PRIUS PRIME_OM_OM47D13U_(U)
4115-5. Using the driving support systems
5
Driving
■Dynamic radar cruise control wi th full-speed range can be set when
● The shift position is in D.
● Vehicle speed is at or above approximately 30 mph (50 km/h).
However, when a preceding vehicle is detected, the dynamic rada r cruise
control with full-speed range can be set even if the vehicle speed is at or
below approximately 30 mph (50 km/h).
■ Accelerating after setting the vehicle speed
The vehicle can accelerate by operating the accelerator pedal. After acceler-
ating, the set speed resumes. However, during vehicle-to-vehicl e distance
control mode, the vehicle speed may decrease below the set spee d in order
to maintain the distance to the preceding vehicle.
■ When the vehicle stops while follow-up cruising
●Pushing the lever up while the vehicle ahead stops will resume follow-up
cruising if the vehicle ahead starts off within approximately 3 seconds after
the lever is pushed up.
● If the vehicle ahead starts off within 3 seconds after your veh icle stops, fol-
low-up cruising will be resumed.
■ Automatic cancelation of vehicle-to-vehicle distance control mode
Vehicle-to-vehicle distance control mode is automatically cance led in the fol-
lowing situations:
● Actual vehicle speed falls at or below approximately 25 mph (40 km/h) when
there are no vehicles ahead.
● The preceding vehicle leaves the lane when your vehicle is following at a
vehicle speed at or below approximately 25 mph (40 km/h). Other wise, the
sensor can not properly detect the vehicle.
● VSC is activated.
● TRAC is activated for a period of time.
● When the VSC or TRAC system is turned off.
● The sensor cannot detect correctly because it is covered in some way.
● Pre-collision braking is activated.
● Intelligent Clearance Sonar is operated. (if equipped)
● The parking brake is operated.
● The vehicle is stopped by system control on a steep incline.
● The following are detected when the vehicle has been stopped by system
control:
• The driver is not wearing a seat belt.
• The driver’s door is opened.
• The vehicle has been stopped for about 3 minutes.
In this situation, the shift position may automatically switch to P. (P. 341)
If vehicle-to-vehicle distance control mode is automatically ca nceled for any
other reason, there may be a malfunction in the system. Contact your Toyota
dealer.

412
PRIUS PRIME_OM_OM47D13U_(U)
5-5. 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 25 mph (40 km/h) .
● VSC is activated.
● TRAC is activated for a period of time.
● When the VSC or TRAC system is turned off.
● Pre-collision braking is activated.
If constant speed control mode is automatically canceled for an y other rea-
son, there may be a malfunction in the system. Contact your Toyota dealer.
■ Brake system operation sound
If the brakes are applied automatically while the vehicle is in vehicle-to-vehi-
cle distance control mode, a brake system operation sound may b e heard.
This does not indicate a malfunction.
■ 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.

6728-2. Steps to take in an emergency
PRIUS PRIME_OM_OM47D13U_(U)
■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. 661)
● “Braking Power Low Visit Your Dealer”:
The brake system warning light (yellow) will come on. ( P. 660)
● Indicates that a door is not fully closed while the vehicle is stopped.:
The Open door warning light comes on. ( P. 662)
■ 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 Sys tem) or the
dynamic radar cruise control with full-speed range is operating . If a warning
message is shown, be sure to decelerate the vehicle or follow a n instruction
shown on the multi-information display.
● A warning message is shown when Drive-Start Control, Brake Over ride Sys-
tem or Intelligent Clearance Sonar (if equipped) operates (P. 315, 316,
444). 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. 340) 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.

6758-2. Steps to take in an emergency
PRIUS PRIME_OM_OM47D13U_(U)
8
When trouble arises
■If “Shift to Before Exiting Vehicle” is shown
Message is displayed when the driver’s door is opened without t urning the
power switch to off with the shift position in any position oth er than P.
Shift the shift position to P.
■ If “Shift is in Release Accelerat or Before Shifting” is shown
Message is displayed when the accelerator pedal has been depressed and
the shift position is in N.
Release the accelerator pedal and shift the shift position to D or R.
■ If “Depress Brake When Vehicle is Stopped. Hybrid System may Ov er-
heat.” is shown
The message may be shown when the accelerator pedal is depresse d to hold
the vehicle while the vehicle is stopped on an uphill, etc.
The hybrid system may overheat. Release the accelerator pedal a nd depress
the brake pedal.
■ If “Shifted to Stop Vehicle to Shift to ” is shown
If the P position switch is pressed while driving, the shift po sition is changed
to N and the message is shown. ( P. 340)
■ If “Auto Power OFF to Conserve Battery” is shown
The power switch has been turned off by the automatic power off function.
When starting the hybrid system next time, operate the hybrid s ystem for
approximately 5 minutes to recharge the 12-volt battery.
■ If “Accelerator and Brake Pedals D epressed Simultaneously” is shown
The accelerator and brake pedals are being depressed simultaneo usly.
( P. 315)
Release the accelerator pedal and depress the brake pedal.
■ If “Forward Camera System Unavaila ble” or “Forward Camera System
Unavailable Clean Windshield” is displayed.
The following systems may be suspended until the problem shown in the
message is resolved. ( P. 388, 660)
● PCS (Pre-Collision System)
● LDA (Lane Departure Alert with steering control)
● Dynamic radar cruise control with full-speed range
● Automatic High Beam

6768-2. Steps to take in an emergency
PRIUS PRIME_OM_OM47D13U_(U)■
If “Cruise Control not Available” 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. 574)
*: 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. 574)
*: Refer to the separate “Scheduled Maintenance Guide” or “Owner’ s Manual
Supplement” for the maintenance interval applicable to your veh icle.
■ If the shift position cannot be changed or the power switch is turned to
ACCESSORY mode even if trying to turn the power switch off when a
warning message is shown
If the 12-volt battery is discharged or the shift control syste m is malfunction-
ing, the followings may occur.
● The shift position may not be changed to P.
When parking, stop the vehicle on level ground and apply the pa rking brake
firmly.
● The hybrid system may not start.
● The power switch may be turned to ACCESSORY mode even if trying to
turn the power switch off.
In this case, the power switch may be turned off after applying the parking
brake.
● The automatic P position selection function ( P. 341) may not operate.
Before turning the power switch off, be sure to press the P pos ition switch
and check that the shift position is in P by the shift position indicator or P
position switch indicator.
■ Warning buzzer
P. 667

775Alphabetical index
PRIUS PRIME_OM_OM47D13U_(U)
Clock ......................................... 188Adjustment ............................ 193
Coat hooks ............................... 552
Combination meter .................. 188 Clock adjustment .................. 193
Main display .......................... 204
Multi-information display ....... 213
Warning lights and
indicators ............................ 196
Condenser ................................ 592
Console box ............................. 528
Consumption screen ....... 258, 264
Coolant ..................................... 590 Capacity ................................ 721
Checking ............................... 590
Preparing and checking before winter....................... 491
Cooling system ........................ 590 Engine overheating ............... 707
Hybrid system overheating ... 709
Cruise control .......................... 399 Dynamic radar cruise control with full-speed range .......... 399
Cup holders.............................. 529
Curtain shield airbags ............... 36
Customizable features ............ 739
Daytime running light system .................................... 349
Deck board ............................... 532
Defogger Outside rear view
mirrors ........................ 500, 511
Rear window ................. 500, 511
Windshield .................... 500, 510 Dimension ................................ 716
Dinghy towing.......................... 331
Display
BSM (Blind Spot Monitor) ..... 417
Drive information .................. 215
Dynamic radar cruise control with full-speed range .......... 399
Energy monitor ..... 216, 255, 261
Head-up display.................... 246
Intelligent Clearance Sonar.................................. 444
Intuitive parking assist .......... 430
LDA (Lane Departure Alert with steering control) .......... 393
Main display.......................... 204
Multi-information display ....... 213
Pre-collision warning ............ 377
S-APGS (Simple Advanced Parking Guidance
System) .............................. 455
Warning messages ............... 670
Do-it-yourself maintenance .... 580
Door courtesy lights ............... 524 Location ................................ 524
Wattage ................................ 724
Doors ................................ 275, 281 Automatic door locking
and unlocking system......... 278
Back door ............................. 281
Door glasses......................... 308
Door lock .............................. 275
Open door warning buzzer ... 662
Open door warning light ....... 662
Outside rear view mirrors ..... 306
Rear door child-protectors .... 278
Side doors ............................ 275
Side windows........................ 308
D
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.

776Alphabetical index
PRIUS PRIME_OM_OM47D13U_(U)
Drive information ..................... 215
Drive-Start Control .................. 316
Driver’s seat belt reminder light......................................... 662
Driving ...................................... 314
Break-in tips .......................... 317
Correct posture ....................... 28
Driving in the rain .................. 315
Driving mode select switch ... 415
Plug-in hybrid vehicle driving tips ...................................... 103
Procedures ........................... 314
Winter drive tips .................... 491
Dynamic radar cruise control
with full-speed range ............ 399
ECB (Electronically Controlled Brake System) .... 485
Eco drive mode ........................ 415
EDR (Event data recorder) ........ 11
Electric motor (traction motor) ....................... 84
Location .................................. 84
Specification ......................... 719
Electric Power Steering (EPS)....................................... 486
Function ................................ 486
Warning light ......................... 661 Electronic key .......................... 270
Battery-saving function ......... 288
If the electronic key does
not operate properly ........... 697
Replacing the battery............ 633
Electronically Controlled Brake System (ECB) ............. 485
Emergency, in case of
If a warning buzzer sounds... 660
If a warning light turns on ..... 660
If a warning message is displayed ............................ 670
If the 12-volt battery is discharged.......................... 701
If the electronic key does not operate properly ........... 697
If the hybrid system will
not start .............................. 695
If the vehicle is trapped in rising water ..................... 652
If you have a flat tire ............. 678
If you lose your keys ..... 271, 274
If you think something is wrong .............................. 659
If your vehicle becomes stuck ................................... 712
If your vehicle has to be
stopped in an emergency ... 651
If your vehicle needs to be towed.................................. 653
If your vehicle overheats....... 707
Emergency flashers ................ 650
E