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

TABLE OF CONTENTS6
PRIUS c_U (OM52G95U)7-1. Maintenance and care
Cleaning and protecting the vehicle exterior .......... 402
Cleaning and protecting the vehicle interior ........... 405
7-2. Maintenance Maintenance requirements ................... 411
General maintenance ........ 414
Emission inspection and maintenance (I/M)
programs ......................... 417
7-3. Do-it-yourself maintenance
Do-it-yourself service precautions ..................... 418
Hood.................................. 421
Positioning a floor jack ...... 423
Engine compartment ......... 424
12-volt battery ................... 433
Tires .................................. 437
Tire inflation pressure........ 446
Wheels .............................. 449
Air conditioning filter .......... 451
Wireless remote control/ electronic key battery ...... 453
Checking and replacing fuses ............................... 456
Light bulbs ......................... 460 8-1. Essential information
Emergency flashers ........... 470
If your vehicle has to be stopped in an
emergency....................... 471
8-2. Steps to take in an emergency
If your vehicle needs to be towed ...................... 473
If you think something is wrong............................... 480
If a warning light turns on or a warning buzzer
sounds ............................. 481
If a warning message is displayed ......................... 490
If you have a flat tire .......... 507
If the hybrid system will not start ........................... 520
If the electronic key does not operate properly ........ 522
If the vehicle 12-volt battery is discharged ....... 524
If your vehicle overheats......................... 531
If the vehicle becomes stuck ................................ 535
7Maintenance and care8When trouble arises

17Pictorial index
PRIUS c_U (OM52G95U)Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 212
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . P. 275
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 219
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 219
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 540
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 437
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . P. 545
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 275
Checking/rotation/tire pressure warning system . . . . . . . . . P. 437
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 507
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 421
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 421
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 541
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 531
Headlights/daytime running lights . . . . . . . . . . . . . . . . . . . . P. 206
Parking lights/front turn signal lights . . . . . . . . . . . . . P. 204, 206
Side turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 204
Front fog lights
*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 210
Front side marker lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 206
Stop lights/tail lights/rear side marker lights/
rear turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . P. 204, 206
Back-up lights
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 200
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 206
4
5
6
7
Light bulbs of the exterior lights for driving
(Replacing method: P. 460, Watts: P. 546)
*: If equipped
8
9
10
11
12
13
14
15

1734-1. Before driving
4
Driving
PRIUS c_U (OM52G95U)
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When driving the vehicle
● During normal driving, do not turn off the hybrid system. Turning the hybrid
system off while driving will not cause loss of steering or braking control,
however, power assist to the steering will be lost. This will make it more
difficult to steer smoothly, so you should pull over and stop the vehicle as
soon as it is safe to do so.
In the event of an emergency, such as if it becomes impossible to stop the
vehicle in the normal way: →P. 471
● Use engine braking (shift position B) to maintain a safe speed when driv-
ing down a steep hill.
Using the brakes continuously may cause the brakes to overheat and lose
effectiveness. ( →P. 200)
● Do not adjust the positions of the steering wheel, the seat, or the inside or
outside rear view mirrors while driving.
Doing so may result in a loss of vehicle control.
● Always check that all passengers' arms , heads or other parts of their body
are not outside the vehicle.
● Do not drive in excess of the speed limit. Even if the legal speed limit per-
mits it, do not drive over 85 mph (140 km/h) unless your vehicle has h\
igh-
speed capability tires. Driving over 85 mph (140 km/h) may result in tire
failure, loss of control and possible injury. Be sure to consult a tire dealer
to determine whether the tires on your vehicle are high-speed capability
tires or not before driving at such speeds.

1744-1. Before driving
PRIUS c_U (OM52G95U)
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When driving on slippery road surfaces
● Sudden braking, acceleration and steering may cause tire slippage and
reduce your ability to control the vehicle.
● Sudden acceleration, engine braking due to shifting, or changes in engine
speed could cause the vehicle to skid.
● After driving through a puddle, lightly depress the brake pedal to make
sure that the brakes are functioning properly. Wet brake pads may prevent
the brakes from functioning properly. If the brakes on only one side are wet
and not functioning properly, steering control may be affected.
■ When shifting the shift lever
● Do not let the vehicle roll backward while the shift lever is in a driving posi-
tion, or roll forward while the shift lever is in R.
Doing so may result in an accident or damage to the vehicle.
● Do not shift the shift lever to P while the vehicle is moving.
Doing so can damage the transmission and may result in a loss of vehicle
control.
● Do not shift the shift lever to R while the vehicle is moving forward.
Doing so can damage the transmission and may result in a loss of vehicle
control.
● Do not shift the shift lever to a driving position while the vehicle is moving
backward.
Doing so can damage the transmission and may result in a loss of vehicle
control.
● Shifting the shift lever to N while the vehicle is moving will disengage the
hybrid system. Engine braking is not available when N is selected.
● Be careful not to shift the shift lever with the accelerator pedal depressed.
Shifting the shift lever to any position other than P or N may lead to unex-
pected rapid acceleration of the vehicle that may cause an accident and
result in death or serious injury.
■ If you hear a squealing or scrapi ng noise (brake pad wear limit indica-
tors)
Have the brake pads checked and replaced by your Toyota dealer as soon
as possible.
Rotor damage may result if the pads are not replaced when needed.
It is dangerous to drive the vehicle when the wear limits of the brake pads
and/or those of the brake discs are exceeded.

1754-1. Before driving
4
Driving
PRIUS c_U (OM52G95U)
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When the vehicle is stopped
● Do not depress the accelerator pedal unnecessarily.
If the shift lever is in any position other than P or N, the vehicle may accel-
erate suddenly and unexpectedly, causing an accident.
● Do not leave the vehicle with the hybrid system on for a long time.
If such a situation cannot be avoided, park the vehicle in an open space
and check that exhaust fumes do not enter the vehicle interior.
● In order to prevent accidents due to the vehicle rolling away, always keep
depressing the brake pedal while stopped with the “READY” indicator is
illuminated, and apply the parking brake as necessary.
● If the vehicle is stopped on an incline, in order to prevent accidents caused
by the vehicle rolling forward or backward, always depress the brake pedal
and securely apply the parking brake as needed.
● Avoid revving or racing the engine.
Running the engine at high speed while the vehicle is stopped may cause
the exhaust system to overheat, which could result in a fire if combusti\
ble
material is nearby.

1784-1. Before driving
PRIUS c_U (OM52G95U)
NOTICE
■Avoiding damage to vehicle parts
● Do not turn the steering wheel fully in either direction and hold it there for
an extended period of time.
Doing so may damage the power steering motor.
● When driving over bumps in the road, drive as slowly as possible to avoid
damaging the wheels, underside of the vehicle, etc.
■ If you get a flat tire while driving
A flat or damaged tire may cause the following situations. Hold the steering
wheel firmly and gradually depress the brake pedal to slow down the vehi-
cle.
● It may be difficult to control your vehicle.
● The vehicle will make abnormal sounds or vibrations.
● The vehicle will lean abnormally.
Information on what to do in case of a flat tire ( →P. 507)
■ When encounterin g flooded roads
Do not drive on a road that has flooded after heavy rain etc. Doing so may
cause the following serious damage to the vehicle:
● Engine stalling
● Short in electrical components
● Engine damage caused by water immersion
In the event that you drive on a flooded road and the vehicle is flooded, be
sure to have your Toyota dealer check the following:
● Brake function
● Changes in quantity and quality of oil and fluid used for the engine, hybrid
transmission, etc.
● Lubricant condition for the bearings and suspension joints (where possi-
ble), and the function of all joints, bearings, etc.

186
PRIUS c_U (OM52G95U)
4-2. Driving procedures
Check that the parking brake is set.
Check that the shift lever is in P.
Firmly depress the brake pedal.
Turn the power switch to the
“START” position to start the
hybrid system.
If the “READY” indicator turns on,
the hybrid system will operate nor-
mally.
Continue depressing the brake
pedal until the “READY” indicator
is illuminated.
Check that the “READY” indicator is illuminated.
If the “READY” indicator changes from a flashing light to a solid light and a
beep sound, 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 engine starts or stops automatically in accordance with
the state of the vehicle.)
Power (ignition) switch (vehicles without a
smart key system)
Starting the hybrid system
1
2
3
4
5

1914-2. Driving procedures
4
Driving
PRIUS c_U (OM52G95U)
Check that the “READY” indicator is illuminated.
If the “READY” indicator changes from a flashing light to a solid light and a
beep sound, 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 engine starts or stops automatically in accordance with
the state of the vehicle.)
Stop the vehicle completely.
Set the parking brake (→P. 205), and shift the shift lever to P.
Press the power switch.
Release the brake pedal and chec k that on the multi-infor-
mation display is off.
Modes can be changed by pressing th e power switch with brake pedal
released. (The mode c hanges each time the switch is pressed.)
Off
*
The emergency flashers can be
used.
ACCESSORY mode
Some electrical components such
as the power outlet can be used.
will be displayed on the
multi-information display.
ON mode
All electrical components can be
used.
will be displayed on the
multi-information display.
*: If the shift lever is in a position other than P when turning off the hybrid sys- tem, the power switch will be turned to ACCESSORY mode, not to off.
Stopping the hybrid system
Changing power switch modes
5
1
2
3
4
1
2
3

2754-7. Driving tips
4
Driving
PRIUS c_U (OM52G95U)
●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.
Accelerate the vehicle slowly, keep a safe distance between you and
the vehicle ahead, and drive at a reduced speed suitable to road con-
ditions.
Winter driving tips
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.
Pre-winter preparations
Before driving the vehicle
When driving the vehicle

401
7Maintenance and care
PRIUS c_U (OM52G95U)7-1. Maintenance and care
Cleaning and protecting the vehicle exterior .......... 402
Cleaning and protecting the vehicle interior ........... 405
7-2. Maintenance Maintenance requirements ................... 411
General maintenance........ 414
Emission inspection and maintenance (I/M)
programs......................... 417
7-3. Do-it-yourself maintenance
Do-it-yourself service precautions ..................... 418
Hood ................................. 421
Positioning a floor jack ...... 423
Engine compartment ......... 424
12-volt battery ................... 433
Tires .................................. 437
Tire inflation pressure ....... 446
Wheels .............................. 449
Air conditioning filter.......... 451
Wireless remote control/ electronic key battery ...... 453
Checking and replacing fuses ............................... 456
Light bulbs......................... 460