traction control TOYOTA PRIUS C 2020 Owners Manual

12
PRIUS c_UThe SRS airbag and seat belt pretensioner devices in your Toyot
a contain
explosive chemicals. If the vehicle is scrapped with the airbag s and seat belt
pretensioners left as they are, this may cause an accident such as fire. Be
sure to have the systems of the SRS airbag and seat belt preten sioner
removed and disposed of by a qualified service shop or by your Toyota dealer
before you scrap your vehicle.
Special handling may apply, See www.dtsc.ca.gov/hazardouswaste/ perchlorate.
Your vehicle has components that may contain perchlorate. These compo-
nents may include airbag, seat belt pretensioners, and wireless remote con-
trol batteries.
Scrapping of your Toyota
Perchlorate Material
WARNING
■ General precautions while driving
Driving under the influence: Never drive your vehicle when unde r the influ-
ence of alcohol or drugs that have impaired your ability to operate your vehi-
cle. Alcohol and certain drugs delay reaction time, impair judg ment and
reduce coordination, which could lead to an accident that could result in
death or serious injury.
Defensive driving: Always drive defensively. Anticipate mistake s that other
drivers or pedestrians might make and be ready to avoid acciden ts.
Driver distraction: Always give your full attention to driving. Anything that
distracts the driver, such as adjusting controls, talking on a cellular phone or
reading can result in a collision with resulting death or serio us injury to you,
your occupants or others.
■ General precaution regar ding children’s safety
Never leave children unattended in the vehicle, and never allow children to
have or use the key.
Children may be able to start the vehicle or shift the vehicle into neutral.
There is also a danger that children may injure themselves by p laying with
the cigarette lighter, the windows, the moon roof, or other fea tures of the
vehicle. In addition, heat build-up or extremely cold temperatu res inside the
vehicle can be fatal to children.

811-3. Hybrid system
1
For safety and security
PRIUS c_U
The illustration is an example for explanation and may differ from the
actual item.
Hybrid system precautions
Take care when handling the hybrid system, as it is a high volt -
age system (about 520 V at maximum) as well as contains parts
that become extremely hot when the hybrid system is operating.
Obey the warning labels attached to the vehicle.
Warning label
Service plug
Air conditioning compressor
Electric motor (traction motor) Power control unit with DC/DC
converter
Hybrid battery (traction bat-
tery)
High voltage cables (orange)1
2
3
4
5
6
7

1042. Instrument cluster
PRIUS c_U
◆Operating the meter control switches
The multi-information display is operated using the meter control
switches.
: Select menu icons
: Change displayeditem, scroll up/down
the screen and
move the cursor up/
down
Enter switch
Press: Enter/Set
Press and hold: Reset
Return to the previous screen
◆Drive Information
Depending on whether the odometer or trip meter is displayed, t he
displayed contents of average speed, driving time, and EV drivi ng
rate/EV driven distance differ.
● When the odometer is displayed: the record since the hybrid sys -
tem was started is displayed.
● When the trip meter is displayed: the record since the trip met er
was reset is displayed. The record for trip meter A and trip me ter
B is displayed separately.
When the trip meter is reset, the record is also reset. ( P. 100)
■
(average speed)
Average speed will be displayed.
■ (driving time)
Driving time will be displayed.
■ (EV driving rate/EV driven distance)
EV driving rate and driven distance (percentage and distance
driven using just the electric motor [traction motor] only) wil l be dis-
played.
1
2
Driving information
3
AV G

1172. Instrument cluster
2
Instrument cluster
PRIUS c_U
P. 1 0 5
■Remaining hybrid battery (traction battery) charge display
The charge amount of the hybrid battery (traction battery) is a utomatically
controlled by the hybrid system. For this reason, even if electricity is recov-
ered via the regenerative braking, or electricity is generated via the gasoline
engine, the displayed hybrid battery (traction battery) charge amount may not
reach the highest level (level 8). However, this does not indic ate a malfunc-
tion.
■ Resetting the consumption data (audio system)
Selecting “Clear” on the “Trip Information” screen will reset t he fuel consump-
tion and the regenerated energy for the past 15 minutes. Select ing “Clear” on
the “Past Record” screen will reset the past records and best past fuel con-
sumption. Selecting “Yes” on the following screen will confirm resetting of all
the data.
■ Updating the past record data (audio system)
Selecting “Update” on the “Past Record” screen will update the past record
data.
Fuel consumption screen (Multi-information display)

2654-6. Using the driving support systems
4
Driving
PRIUS c_U
◆ECB (Electronically Controlled Brake System)
The electronically controlled system generates braking force corre-
sponding to the brake operation
◆ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the brakes are applied suddenl y,
or if the brakes are applied while driving on a slippery road surface
◆Brake assist
Generates an increased level of braking force after the brake p edal
is depressed when the system de tects a panic stop situation
◆VSC (Vehicle Stability Control)
Helps the driver to control skidding when swerving suddenly or
turning on slippery road surfaces
◆TRAC (Traction Control)
Helps to maintain drive power and prevent the drive wheels from
spinning when starting the vehicle or accelerating on slippery roads
◆Hill-start assist control
Helps to reduce the backward movement of the vehicle when start -
ing on an uphill
◆EPS (Electric Power Steering)
Employs an electric motor to reduce the amount of effort needed to
turn the steering wheel
Driving assist systems
To keep driving safety and perf ormance, the following systems
operate automatically in respon se to various driving situations.
Be aware, however, that these systems are supplementary and
should not be relied upon too heav ily when operating the vehi-
cle.

4828-2. Steps to take in an emergency
PRIUS c_U
Slip indicator lightIndicates a malfunction in:
• The VSC (Vehicle Stability Control) system;
• The TRAC (Traction Control) system; or
• The hill-start assist control system
The light will flash when the VSC, the TRAC or the ABS
system is operating.
 Have the vehicle inspected by your Toyota dealer
immediately.
Low fuel level warning light
Remaining fuel is low
When the remaining fuel is approximately 1.3 gal. (5.0 L,
1.1 Imp. gal.) or less, a buzzer sounds and comes on
 Refuel the vehicle.
Seat belt reminder light (warning buzzer)*3
Warns the driver and/or front passenger to fasten their
seat belts
 Fasten the seat belt.
If the front passenger’s seat is occupied, the front
passenger’s seat belt also needs to be fastened to
make the reminder light (warning buzzer) go off.
Master warning light
A buzzer sounds and the warning light comes on and
flashes to indicate that the master warning system has
detected a malfunction.
 P. 488
(Flashes or illumi-
nates)
PCS warning light
When a buzzer sounds simultaneously:
Indicates a malfunction has occurred in the PCS (Pre-Col-
lision System).
 Have the vehicle inspected by your Toyota dealer
immediately.
When a buzzer does not sound:
Indicate that the PCS (Pre-Collision System) has become
temporarily unavailable, corrective action may be neces-
sary.
 Possible causes and corrective actions
(P. 230, 488)
If the PCS (Pre-Collision System) or VSC (Vehicle Stability
Control) system is disabled, the PCS warning light will illu-
minate.
 P. 240
Warning lightWarning light/Details/Actions

4938-2. Steps to take in an emergency
8
When trouble arises
PRIUS c_UIndicates that the hybrid system has overheated
This message may be displayed when driving
under severe operating conditions. (For exam-
ple, when driving up a long steep hill.)
A buzzer also sounds.
 Stop and check. ( P. 529)
Indicates that the Automatic High Beam switch is
pressed while the headlights are in low beam.
Turn the high beam on.
Indicates that, since the VSC (Vehicle Stability
Control) system was turned off, the pre-collision
braking and pre-collision brake assist are dis-
abled (The pre-collision warning function will be
operational)
 Turn the VSC on. ( P. 240, 267)
Indicates that the pre-collision system is disabled.
 Have the vehicle inspected by your Toyota
dealer.
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 lever to P. The
hybrid battery (traction battery) cannot be
charged with the shift position in N.
Warning messageDetails/Actions
(Flashes)

4968-2. Steps to take in an emergency
PRIUS c_UIndicates that the EV drive mode has been auto-
matically canceled
*2
The reason the EV drive mode is not available
(the battery charge is low, speed is higher than
the EV drive mode speed range, accelerator
pedal is depressed too much) may be dis-
played.
A buzzer also sounds.
 Drive the vehicle for a while.
Indicates a malfunction in the vehicle’s charging
system A buzzer also sounds.
 Immediately stop the vehicle in a safe place
and contact your Toyota dealer.
Indicates that the TRAC (Traction Control) sys-
tem has been deactivated
 Turn the TRAC on. ( P. 266)
Warning messageDetails/Actions
(Flashes 3
times)

5539-1. Specifications
9
Vehicle specifications
PRIUS c_U
This information has been prepared in accordance with regulations
issued by the National Highway Tr affic Safety Administration of the
U.S. Department of Transportation.
It provides the purchasers and/or prospective purchasers of Toyota
vehicles with info rmation on uniform ti re quality grading.
Your Toyota dealer will help answer any questions you may have as
you read this information.
■DOT quality grades
All passenger vehicle tires must conform to Federal Safety Requ ire-
ments in addition to these grades. Quality grades can be found
where applicable on the tire sidewall between tread shoulder an d
maximum section width.
For example: Treadwear 200 Traction AA Temperature A
■Treadwear
The treadwear grade is a comparative rating based on the wear
rate of the tire when tested under controlled conditions on a s peci-
fied government t est course.
For example, a tire graded 150 would wear one and a half (1 - 1 /2)
times as well on the governmen t course as a tire graded 100.
The relative performance of tires depends upon the actual condi -
tions of their use. Performance ma y differ significantly from the norm
due to variations in driving habits, service practices and diff erences
in road characteristics and climate.
■Traction AA, A, B, C
The traction grades, from highest to lowest, are AA, A, B and C ,
and they represent the tire's a bility to stop on wet pavement a s
measured under controlled conditions on specified government te st
surfaces of asphalt and concrete.
A tire marked C may have p oor traction performance.
Warning: The traction grade assigned to this tire is based on b raking
(straight ahead) traction tests and does not include cornering (turn-
ing) traction.
Uniform Tire Quality Grading

598Alphabetical index
PRIUS c_U
Toyota Safety Sense C ............ 225Automatic High Beam ........... 246
Front sensor.......................... 226
LDA (Lane Departure Alert) ................................... 241
PCS (Pre-Collision system) ........ 231
TRAC......................................... 265
Traction control ....................... 265
Transmission Hybrid transmission .............. 202
If the shift lever cannot
be shifted from P ................ 204
Trip information ....................... 103
Trip meter ................................... 99
Turn signal lights Replacing light bulbs............. 458
Switch ................................... 206
Wattage ................................ 544
USB memory .................... 284, 311
Vanity mirrors .......................... 393
Vehicle data recordings ............ 10
Vehicle identification number ................................... 537
Vehicle stability control .......... 265
VSC ........................................... 265
VSC OFF switch ....................... 266 Warning buzzers
Brake system ....... ................. 480
Electric power steering system .......... ...................... 481
Key reminder ........................ 499
LDA
(Lane Departure Alert) ....... 241
Master warning ..................... 482
Pre-Collision warning............ 482
Seat belt reminder ................ 482
Warning lights
Anti-lock brake system ......... 481
Brake assist system.............. 481
Brake system ....... ................. 480
Electric power steering system .......... ...................... 481
Front passenger occupant
classification system .......... 481
Low brake fluid ..................... 480
Low fuel level ........................ 482
Low tire inflation pressure..... 483
Malfunction indicator lamp .... 481
Master warning light ............. 482
Parking brake ....................... 481
PCS warning light ................. 482
Pretensioners ....................... 481
Seat belt reminder light......... 482
Slip indicator light ................. 482
SRS airbag system ............... 481
Tire pressure ........................ 483
Tire pressure warning system .......... ...................... 483
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