oil pressure TOYOTA PRIUS PRIME 2018 Owners Manual (in English)

17Pictorial index
PRIUS PRIME_OM_OM47C17U_(U)Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 356
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 356
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 714
Charging port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 102
Charging method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 125
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . P. 598
Replacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 613
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . P. 720
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 482
Checking/rotation/tire pressur e warning system . . . . . . . . .P. 598
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 675
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 581
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 581
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 716
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 704
Headlights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 338
Parking lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 338
Fog lights
* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 348
LED accent lights
*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 338
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 336
Daytime running lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 338
Side marker lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 338
Tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 338
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 338
Back-up lights
Shifting the shift position to R . . . . . . . . . . . . . . . . . . . . . . . . . P. 330
5
6
7
8
Light bulbs of the exterior lights for driving
(Replacing method: P. 639, Watts: P. 721)
*: If equipped
9
10
11
12
13
14
15
16
17
18

PRIUS PRIME_OM_OM47C17U_(U)
1893. Instrument cluster
3
Instrument cluster
Warning lights inform the driver of malfunctions in any of the vehicle’s
systems.
Warning lights
Warning lightsPages
*1Brake system warning light (U.S.A.) P. 657
*1Brake system warning light (Canada)
(Red)P. 657
*1Brake system warning light
(Yellow)P. 657
*1Charging system warning light
P. 657
*1Low engine oil pressure warning lightP. 657
*1Malfunction indicator lamp (U.S.A.) P. 657
*1Malfunction indicator lamp (Canada)P. 657
*1SRS warning light P. 658
*1ABS warning light (U.S.A.) P. 658
*1ABS warning light (Canada)P. 658
*1Electric power steering system warning light
(Red/yellow)P. 658
*1, 2PCS warning light
P. 658
*1Slip indicator lightP. 658
*1High coolant temperature warning lightP. 659

194
PRIUS PRIME_OM_OM47C17U_(U)
3. Instrument cluster
■Multi-information display (symbol display*)
*: These symbols are displayed along with a message. Also, the symbol dis-
plays listed here are only an example, and different symbols ma y be dis-
played according to the contents of the multi-information displ ay.
Symbol displayPages
Smart key system P. 324
Brake Override System/Drive-Start Control/
Intelligent Clearance Sonar (if equipped) P. 661
LDA (Lane Departure Alert with steering con-
trol) systemP. 390
P. 390
Low engine oil pressure warning
(Canada only) P. 661

560
PRIUS PRIME_OM_OM47C17U_(U)
7-1. Maintenance and care
Cleaning and protecting the vehicle exterior
●Working from top to bottom, liberally apply water to the vehicl e
body, wheel wells and underside of the vehicle to remove any di rt
and dust.
● Wash the vehicle body using a sponge or soft cloth, such as a
chamois.
● For hard-to-remove marks, use car wash soap and rinse thoroughl y
with water.
● Wipe away any water.
● Wax the vehicle when the wate rproof coating deteriorates.
If water does not bead on a clean surface, apply wax when the v ehicle
body is cool.
■ Before car washes
Check that the fuel filler door and charging port lid on your v ehicle are closed
properly.
■ Automatic car washes
●Fold the mirrors before washing the vehicle. Start washing from the front of
the vehicle. Make sure to extend the mirrors before driving.
● Brushes used in automatic car washes may scratch the vehicle su rface and
harm your vehicle’s paint.
● Rear spoiler may not be washable in some automatic car washes. There
may also be an increased risk of damage to vehicle.
■ High pressure car washes
●Do not allow the nozzles of the car wash to come within close p roximity of
the windows.
● Before using the car wash, check that the fuel filler door and charging port
lid on your vehicle are closed properly.
Perform the following to protect the vehicle and maintain it in
prime condition:

PRIUS PRIME_OM_OM47C17U_(U)
5797-3. Do-it-yourself maintenance
7
Maintenance and care
Tire inflation
pressure
( P. 607)• Tire pressure gauge
• Compressed air source
Washer fluid
( P. 5 9 6 )• Water or washer fluid containing antifreeze (for win-
ter use)
• Funnel (used only for adding water or washer fluid)
WARNING
The engine compartment contains many mechanisms and fluids that may
move suddenly, become hot, or become electrically energized. To avoid death
or serious injury, observe the following precautions.
■ When working on the engine compartment
● Make sure that the “Accessory”, “Ignition ON” or mileage displa y
( P. 197) on the main display and the “READY” indicator are both off.
● Keep hands, clothing and tools away from the moving fan.
● Be careful not to touch the engine, power control unit, radiator, exhaust
manifold, etc. right after driving as they may be hot. Oil and other fluids
may also be hot.
● Do not leave anything that may burn easily, such as paper and r ags, in the
engine compartment.
● Do not smoke, cause sparks or expose an open flame to fuel. Fuel fumes
are flammable.
● Be extremely cautious when working on the 12- volt battery. It contains
poisonous and corrosive sulfuric acid.
■ When working near the electric cooling fans or radiator grille
Be sure the power switch is off.
With the power switch in ON mode, the electric cooling fans may automati-
cally start to run if the air conditioning is on and/or the coolant temperature
is high. ( P. 590)
■ Safety glasses
Wear safety glasses to prevent flying or falling material, flui d spray, etc.
from getting in your eyes.
ItemsParts and tools

PRIUS PRIME_OM_OM47C17U_(U)
6117-3. Do-it-yourself maintenance
7
Maintenance and care
■When replacing wheels
The wheels of your vehicle are equipped with tire pressure warn ing
valves and transmitters that allow the tire pressure warning sy stem to
provide advance warning in the event of a loss in tire inflatio n pressure.
Whenever wheels are replaced, tir e pressure warning valves and trans-
mitters must be installed. ( P. 599)
WARNING
■When replacing wheels
●Do not use wheels that are a different size from those recommen ded in
the Owner’s Manual, as this may result in a loss of handling control.
●Never use an inner tube in a leaking wheel which is designed fo r a
tubeless tire. Doing so may resu lt in an accident, causing death or seri-
ous injury.
■When installing the wheel nuts
●Never use oil or grease on the wheel bolts or wheel nuts.
Oil and grease may cause the wheel nuts to be excessively tight ened,
leading to bolt or disc wheel damage. In addition, the oil or g rease can
cause the wheel nuts to loosen and the wheel may fall off, caus ing an
accident and resulting in death or serious injury. Remove any oil or
grease from the wheel bolts or wheel nuts.
■Use of defective wheels prohibited
Do not use cracked or deformed wheels.
Doing so could cause the tire to leak air during driving, possibly causing
an accident.
●Be sure to install the wheel nuts with
the tapered ends facing inward.
Installing the nuts with the tapered
ends facing outward can cause the
wheel to break and eventually cause
the wheel to come off while driving,
which could lead to an accident
resulting in death o r serious injury.Tapered
portion

657
PRIUS PRIME_OM_OM47C17U_(U)
8
When trouble arises
8-2. Steps to take in an emergency
If a warning light turns on or a war ning
buzzer sounds
Calmly perform the following actions if any of the warning ligh ts
comes on or flashes. If a light comes on or flashes, but then
goes off, this does not necessarily indicate a malfunction in the
system. However, if this continues to occur, have the vehicle
inspected by your Toyota dealer.
Warning light and w arning buzzer list
Warning lightWarning light/Details/Actions
(U.S.A.)
(Canada)
Brake system warning light and warning buzzer (red
indicator)
*1
Indicates that:
• The brake fluid level is low; or
• The brake system is malfunctioning
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer. Continuing to drive the vehi-
cle may be dangerous.
Brake system warning light (yellow indicator)
Indicates a malfunction in:
• The regenerative braking system; or
• The electronically controlled brake system
 Have the vehicle inspected by your Toyota dealer
immediately.
Charging system warning light
Indicates a malfunction in the vehicle’s charging system
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.
Low engine oil pressure warning light
(warning buzzer)
*2
Indicates that the engine oil pressure is too low
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.
(U.S.A.)
(Canada)
Malfunction indicator lamp Indicates a malfunction in:
• The hybrid system;
• The electronic engine control system; or
• The electronic throttle control system
 Have the vehicle inspected by your Toyota dealer
immediately.

6618-2. Steps to take in an emergency
PRIUS PRIME_OM_OM47C17U_(U)
8
When trouble arises
Brake Override System/Drive-Start Control/
Intelligent Clearance Sonar (symbol display)
*7
Brake Override SystemIndicates that the accelerator and brake pedals are being
depressed simultaneously, and the Brake Override Sys-
tem is operating
 Release the accelerator pedal and depress the brake
pedal.
Indicates a malfunction in the Brake Override System
(with warning buzzer)
 Have the vehicle inspected by your Toyota dealer
immediately.
Drive-Start Control Indicates that the shift position was changed and Drive-
Start Control was operated while depressing the accelera-
tor pedal (with warning buzzer)
 Momentarily release the accelerator pedal.
Indicates a malfunction in the Drive-Start Control system
(with warning buzzer)
 Have the vehicle inspected by your Toyota dealer
immediately.
Intelligent Clearance Sonar Indicates that the Intelligent Clearance Sonar (if equipped)
is operating ( P. 435)
 Follow the instruction that is displayed on the multi-
information display.
(Canada only)
Low engine oil pressure warning (symbol display)*7
Indicates that the engine oil pressure is too low
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.
Warning lightWarning light/Details/Actions

6628-2. Steps to take in an emergency
PRIUS PRIME_OM_OM47C17U_(U)
*1: Brake system warning buzzer:When there is a possible problem that could affect braking perf ormance,
the warning light will come on and a warning buzzer will sound.
*2: Low engine oil pressure warning buzzer: A buzzer also sounds continuously for approximately 30 seconds at maxi-
mum in addition to the low engine oil pressure warning light wh en the
“READY” indicator is illuminated.
*3: Open door warning buzzer: The open door warning buzzer sounds to alert one or more of the doors is
not fully closed (with the vehicle having reached a speed of 3 mph [5 km/h]).
*4: Driver’s seat belt warning buzzer:
The driver’s seat belt warning buzzer sounds to alert the drive r that his or
her seat belt is not fastened. Once the power switch is turned to ON mode,
the buzzer sounds for 6 seconds. If the vehicle reaches a speed of 12 mph
(20 km/h), the buzzer sounds once. If the seat belt is still unfastened after
24 seconds, the buzzer will sound intermittently for 6 seconds. Then, if the
seat belt is still unfastened, the buzzer will sound in a diffe rent tone for 90
more seconds.
*5: Front passenger’s seat belt warning buzzer: The front passenger’s seat belt warning buzzer sounds to alert the front
passenger that his or her seat belt is not fastened. The buzzer sounds
once if the vehicle reaches a speed of 12 mph (20 km/h). If the seat belt is
still unfastened after 24 seconds, the buzzer will sound interm ittently for 6
seconds. Then, if the seat belt is still unfastened, the buzzer will sound in a
different tone for 90 more seconds.
*6: Rear passengers’ seat belt warning buzzer: The rear passengers’ seat belt warning buzzer sounds to alert t he rear
passengers that his or her seat belt is not fastened. The buzze r sounds
intermittently for 6 seconds after the vehicle reaches a speed of 12 mph
(20 km/h). Then, if the seat belt is still unfastened, the buzz er will sound in
a different tone for 24 more seconds.
*7: This symbol is displayed on the multi-information display.

6708-2. Steps to take in an emergency
PRIUS PRIME_OM_OM47C17U_(U)■
If “See Owner’s Manual” is shown
●If “Braking Power Low Stop in a Safe Place See Owner’s Manual” is shown,
this may be a malfunction. Immediately stop the vehicle in a sa fe place and
contact your Toyota dealer. Continuing to drive the vehicle may be danger-
ous.
● If “Engine Oil Pressure Low” is shown, this may be a malfunctio n. Immedi-
ately stop the vehicle in a safe place and contact your Toyota dealer.
● If the following messages are shown, there may be a malfunction . Immedi-
ately have the vehicle inspected by your Toyota dealer.
• “Plug-in charging system malfunction.”
• “Hybrid System Malfunction”
• “Check Engine”
• “Hybrid Battery System Malfunction”
• “Accelerator System Malfunction”
• “Smart Key System Malfunction See Owner’s Manual”
■ If “Shift System Not A ctive Apply Parking Brake Securely While Parking
See Owner’s Manual” is shown
Indicates a temporary operation failure or malfunction in the shift control sys-
tem. Immediately have the vehicle inspected by your Toyota deal er.
When the message is shown, the hybrid system may not be started or the
shift position may not be changed normally. (Coping method: P. 673)
■ If “Shift System Malfunction A pply Parking Brake Securely While Park-
ing See Owner’s Manual” is shown
Indicates a malfunction in the shift control system. Immediatel y have the vehi-
cle inspected by your Toyota dealer.
When the message is shown, the hybrid system may not be started or the
shift position may not be changed normally. (Coping method: P. 673)
■ If “ Switch Malfunction Apply Par king Brake Securely While Parking
See Owner’s Manual” is shown
The P position switch may not operate. Immediately have the veh icle
inspected by your Toyota dealer.
When parking the vehicle, stop the vehicle on level ground and apply the
parking brake firmly.
■ If “Shift System Malfunction Shi fting Unavailable See Owner’s M anual”
is shown
Indicates a malfunction in the shift control system. Immediatel y have the vehi-
cle inspected by your Toyota dealer.
The shift position may not be shifted from P to other than P.
■ If “Shift System Malfunction S top in a Safe Place See Owner’s Manual”
is shown
Indicates a malfunction in the shift control system. Immediatel y have the vehi-
cle inspected by your Toyota dealer.
The shift position may not be changed. Stop the vehicle in a sa fe place.