check engine light TOYOTA PRIUS 2018 Owners Manual (in English)

TABLE OF CONTENTS6
PRIUS_OM_OM47B89U_(U)6-4. Using the other interior
features
Other interior features ....... 555 • Sun visors ..................... 555
• Vanity mirrors................ 555
• Power outlets ................ 556
• Wireless charger ........... 557
• Armrest ......................... 565
• Coat hooks.................... 565
• Assist grips ................... 566
Garage door opener .......... 567
Safety Connect.................. 574 7-1. Maintenance and care
Cleaning and protecting the vehicle exterior .......... 582
Cleaning and protecting the vehicle interior ........... 588
7-2. Maintenance Maintenance requirements ................... 591
General maintenance ........ 594
Emission inspection and maintenance (I/M)
programs ......................... 597
7-3. Do-it-yourself maintenance
Do-it-yourself service precautions ...................... 598
Hood .................................. 601
Positioning a floor jack....... 603
Engine compartment ......... 604
Tires................................... 618
Tire inflation pressure ........ 628
Wheels............................... 631
Air conditioning filter .......... 634
Hybrid battery (traction battery) air intake vent ..... 637
Wiper rubber replacement..................... 642
Electronic key battery ........ 646
Checking and replacing fuses ................................ 649
Headlight aim..................... 652
Light bulbs ......................... 654
7Maintenance and care

17Pictorial index
PRIUS_OM_OM47B89U_(U)Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 260
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . P. 418
Precautions against car wash (vehicles with rain-sensing
windshield wipers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 584
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 268
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 268
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 747
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 618
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . P. 752
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 418
Checking/rotation/tire pressure warning system . . . . . . . . . P. 618
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . P. 691, 705
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 601
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 601
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 748
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 735
Headlights/daytime running lights . . . . . . . . . . . . . . . . . . . . P. 248
Parking lights
*1/side marker lights/
LED accent lights
*2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 248
Fog lights
*2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 258
Turn signal lights/parking lights
*1. . . . . . . . . . . . . . . . P. 246, 248
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 246
Tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 248
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 248
Back-up lights
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 240
4
5
6
7
Light bulbs of the exter ior lights for driving
(Replacing method: P. 654, Watts: P. 754)
*1: The location of the parking lights may differ depending on the grade, etc.
*2: If equipped
8
9
10
11
12
13
14
15

106
PRIUS_OM_OM47B89U_(U)
2. Instrument cluster
■BSM (Blind Spot Monitor) outsid e rear view mirror indicators
(if equipped) ( →P. 326)
• When the BSM function is enabled on the screen of the multi-infor- mation display, the power switch is turned to ON mode.
If the system is functioning correctly, the BSM outside rear view mirror indi-
cators will turn off after a few seconds.
If the BSM outside rear view mirror indicators do not illuminate or do not
turn off, there may be a malfunction in the system.
If this occurs, have the vehicle inspected by your Toyota dealer.
●
Indicators are also displayed on the out-
side rear view mirrors.
● In order to confirm operation, the BSM
outside rear view mirror indicators illumi-
nate in the following situations:
• When the power switch is in ON
mode, the BSM function is enabled
on the screen of the multi-infor-
mation display.
WARNING
■If a safety system warning light does not come on
Should a safety system light such as the ABS and SRS warning light not
come on when you start the hybrid system, this could mean that these sys-
tems are not available to help protect you in an accident, which could r\
esult
in death or serious injury. Have the vehicle inspected by your Toyota dealer
immediately if this occurs.
NOTICE
■To prevent damage to the engine and its components
The engine may be overheating if the high coolant temperature warning
light comes on or flashes. In this case, immediately stop the vehicle in a
safe place, and check the engine after it has cooled completely. ( →P. 735)

PRIUS_OM_OM47B89U_(U)
1172. Instrument cluster
2
Instrument cluster
◆Energy monitor
The energy monitor can be used to check the vehicle drive status,
hybrid system operation status and energy regeneration status.
When energy is flowing, an arrow appears and a bright point of light
moves to show the direction of the flow of energy. When energy is
not flowing, the bright point of light are not displayed.
Gasoline engine
Electric motor
(traction motor)
Hybrid battery
(traction battery)
Tire
Bright point of light showing
the flow of energy
As an example, all arrows are shown in the illustration, but the actual con-
tents of the display will differ.
(Display example)
●When the hybrid battery (traction battery) is being charged, the
bright point of light moves towards .
● During driving, the bright point of light moves from or (or
both depending on the situation) towards .
*
●During driving, the image of the tires rotates.
*: The display may differ depending on the driving status.
1
2
3
4
5
3
12
4

PRIUS_OM_OM47B89U_(U)
1592. Instrument cluster
2
Instrument cluster
■Display the power consumption of the air conditionerDisplay “Energy Monitor” screen.
Select on the upper right screen.
When you select the “ ×”, and close the screen.
■Function summary
The energy monitor can be used to check the vehicle drive status,
hybrid system operation status and energy regeneration status.
■Flow of energy and display details
When energy is flowing, an arrow appears and a bright point of light
moves to show the direction of the flow of energy. When energy is
not flowing, the bright point of light are not displayed.
● The display when the engine is operating is in blue while the
engine is being warmed up and yellow afterwards.
● The arrow from the engine to the motor and tires is displayed in
red.
● The arrow indicating energy consumption is displayed in yellow
and the arrow indicating energy regeneration or charging is dis-
played in green. Also, the hybr id battery (traction battery)
changes color accordingly.
● There is an icon , , on the lower side of the
screen. The screen switches to each point of view when you
select it.
● When you select , this screen is displayed in the lower half of
the screen, it will be displaye d together with the navigation
screen.
● These images are examples only, and may vary slightly from
actual conditions.
How to read the energy monitor
1
2

231
PRIUS_OM_OM47B89U_(U)
4-2. Driving procedures
4
Driving
Power (ignition) switch
Check that the parking brake is set.
Firmly depress the brake pedal.
and a message will be dis-
played on the multi-information dis-
play.
When the shift position is N, the
hybrid system cannot start. Shift
the shift position to P when starting
the hybrid system. ( →P. 241)
Press the power switch shortly
and firmly.
When operating the power switch,
one short, firm press is enough. It
is not necessary to press and hold
the switch.
If the “READY” indicator turns on,
the hybrid system will operate nor-
mally.
Continue depressing the brake pedal until the “READY” indicator is illumi-
nated.
The hybrid system can be started from any power switch mode.
Check that the “READY” indicator is illuminated.
If the “READY” indicator changes from a flashing light to a solid light and
the buzzer sounds, the hybrid system is starting normally.
The vehicle will not move when the “READY” indicator is off.
The vehicle can move when the “READY” indicator is on even if the engine
is stopped. (The gasoline engine starts or stops automatically in accor-
dance with the state of the vehicle.)
Performing the following operati ons when carrying the elec-
tronic key on your person starts the hybrid system or changes
power switch modes.
Starting the hybrid system
1
2
3
4

418
PRIUS_OM_OM47B89U_(U)
4-6. Driving tips
Winter driving tips
●Use fluids that are appropriate to the prevailing outside tempera-
tures. • Engine oil
• Engine/power control unit coolant
• Washer fluid
● Have a service technician inspec t the condition of the 12-volt bat-
tery.
● Have the vehicle fitted with four snow tires or purchase a set of tire
chains for the front tires.
Ensure that all tires are the same size and brand, and that chains match
the size of the tires.
Perform the following accordin g to the driving conditions:
● Do not try to forcibly open a window or move a wiper that is frozen.
Pour warm water over the frozen area to melt the ice. Wipe away
the water immediately to prevent it from freezing.
● To ensure proper operation of the climate control system fan,
remove any snow that has accumulated on the air inlet vents in
front of the windshield.
● Check for and remove any excess ice or snow that may have accu-
mulated on the exterior lights, vehicle’s roof, chassis, around the
tires or on the brakes.
● Remove any snow or mud from the bottom of your shoes before
getting in the vehicle.
Carry out the necessary preparations and inspections before
driving the vehicle in winter. Al ways drive the vehicle in a man-
ner appropriate to the prevailing weather conditions.
Preparation for winter
Before driving the vehicle

581
PRIUS_OM_OM47B89U_(U)
7Maintenance and care
7-1. Maintenance and careCleaning and protecting the vehicle exterior .......... 582
Cleaning and protecting the vehicle interior ........... 588
7-2. Maintenance Maintenance requirements ................... 591
General maintenance........ 594
Emission inspection and maintenance (I/M)
programs......................... 597
7-3. Do-it-yourself maintenance
Do-it-yourself service precautions ..................... 598
Hood ................................. 601
Positioning a floor jack ...... 603
Engine compartment ......... 604
Tires .................................. 618
Tire inflation pressure ....... 628
Wheels .............................. 631
Air conditioning filter.......... 634
Hybrid battery (traction battery) air intake vent .... 637
Wiper rubber replacement .................... 642
Electronic key battery........ 646
Checking and replacing fuses ............................... 649
Headlight aim .................... 652
Light bulbs......................... 654

6758-2. Steps to take in an emergency
PRIUS_OM_OM47B89U_(U)
8
When trouble arises
High coolant temperature warning light
• When the light flashes: Indicates that the engine coolant temperature is too high
The light changes from a flashing to a solid light when
the temperature further increases
→ Immediately stop the vehicle in a safe place. ( →P. 735)
• When the light comes on without flashing: Indicates a malfunction in the exhaust heat recirculator
system
→ Have the vehicle inspected by your Toyota dealer
immediately.
(Flashes)
(If equipped)
ICS OFF indicator
Indicates a malfunction in the Intelligent Clearance Sonar
function
→ Have the vehicle inspected by your Toyota dealer.
The warning light will operate as follows, even when the
system is not malfunctioning:
• The light will come on when the Intelligent Clearance Sonar function is turned off ( →P. 352)
• The light will come on when the Intelligent Clearance
Sonar function is operating ( →P. 356)
• The light will flash when the system cannot be temporar- ily used ( →P. 360)
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 1.7 gal.
(6.4 L, 1.4 Imp.gal.) or less
→ Refuel the vehicle.
Seat belt reminder light (warning buzzer)*4
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 warning light (war ning buzzer) turn off.
(U.S.A.)
(Canada)
Rear passengers’ seat belt reminder lights (warning
buzzer)
*5
Warns the rear passengers to fasten their seat belts
→ Fasten the seat belt.
Warning lightWarning light/Details/Actions

7318-2. Steps to take in an emergency
PRIUS_OM_OM47B89U_(U)
8
When trouble arises
Once the hybrid system has started, remove the jumper cables in
the exact reverse order from which they were connected.
To install the engine cover, conduct the removal procedure in
reverse. After installing, check that the fixed pins are inserted
securely.
Once the hybrid system starts, ha ve the vehicle inspected at your
Toyota dealer as soon as possible.
■ Starting the hybrid system when the 12-volt battery is discharged
The hybrid system cannot be started by push-starting.
■ To prevent 12-volt battery discharge
●Turn off the headlights and the audio system while the hybrid system is off.
● Turn off any unnecessary electrical components when the vehicle is running
at a low speed for an extended period, such as in heavy traffic.
■ When the 12-volt battery is removed or discharged
●Information stored in the ECU is cleared. When the 12-volt battery is
depleted, have the vehicle inspected at your Toyota dealer.
● Some systems may require initialization. ( →P. 780)
■ When removing the 12-volt battery terminals
When the 12-volt battery terminals are removed, the information stored in the
ECU is cleared. Before removing the 12-volt battery terminals, contact your
Toyota dealer.
■ Charging the 12-volt battery
The electricity stored in the 12-volt battery will discharge gradually even when
the vehicle is not in use, due to natural discharge and the draining effects of
certain electrical appliances. If the vehicle is left for a long time, the 12-volt
battery may discharge, and the hybrid system may be unable to start. (The
12-volt battery recharges automatically while the hybrid system is operating.)
7
8