Page 19 of 784

19Pictorial index
PRIUS PRIME_OM_OM47A88U_(U)Multi-information display . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 205
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 205
Energy monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 208
When the warning messages are displayed . . . . . . . . . . . . . . P. 663
Parking brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 337
Applying/releasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 337
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . P. 482
Warning buzzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 337
Turn signal lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 336
Headlight switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 338
Headlights/parking lights/tail lights/
daytime running lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 338
Fog lights
*1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 348
Windshield wipers and washer switch . . . . . . . . . . . . . . . . P. 350
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 350
Adding washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 592
Emergency flasher switch . . . . . . . . . . . . . . . . . . . . . . . . . . P. 644
Fuel filler door opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 358
Hood lock release lever. . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 577
Tilt and telescopic steering lock release lever . . . . . . . . . . P. 294
Air conditioning system . . . . . . . . . . . . . . . . . . . . . . . . P. 488, 498
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 488, 499
Rear window defogger . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 491, 502
Audio system
*2
*1: If equipped
*2: Refer to “NAVIGATION SYSTEM OWNER’S MANUAL”.
5
6
7
8
9
10
11
12
13
14
Page 317 of 784

PRIUS PRIME_OM_OM47A88U_(U)
3175-1. Before driving
5
Driving
NOTICE
■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.
If the shift control system is damaged by flooding, it may not be possible to
shift the shift position to P, or from P to other positions. When the shift posi-
tion cannot be changed from P to any other position, the front wheels will
lock, and you will be unable to tow the vehicle with the front wheels on the
ground, as the front wheels may be locked. In this case, transport the vehi-
cle with both front wheels or all four wheels lifted.
Page 482 of 784

482
PRIUS PRIME_OM_OM47A88U_(U)
5-6. 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
Page 570 of 784
570
PRIUS PRIME_OM_OM47A88U_(U)
7-2. Maintenance
General maintenance
Listed below are the general maintenance items that should be
performed at the intervals specified in the “Owner’s Warranty
Information Booklet” or “Owner’s Manual Supplement/Sched-
uled Maintenance Guide”. It is recommended that any problem
you notice should be brought to the attention of your Toyota
dealer or qualified service shop for advice.
Engine compartment
ItemsCheck points
12-volt batteryCheck the connections. (→P. 587)
Brake fluidIs the brake fluid at the correct level? ( →P. 590)
Engine/power control
unit coolantIs the engine/power control unit coolant at the
correct level? (→P. 584)
Engine oilIs the engine oil at the correct level? (→P. 581)
Exhaust systemThere should not be any fumes or strange
sounds.
Radiator/condenserThe radiator and condenser should be free from
foreign objects. (→P. 586)
Washer fluidIs there sufficient washer fluid? (→P. 592)
Page 574 of 784

574
PRIUS PRIME_OM_OM47A88U_(U)
7-3. Do-it-yourself maintenance
Do-it-yourself service precautions
If you perform maintenance by yourself, be sure to follow the
correct procedure as given in these sections.
ItemsParts and tools
12-volt battery
condition
(→ P. 587)•Grease
• Conventional wrench (for terminal clamp bolts)
Brake fluid level
(→ P. 590)• FMVSS No.116 DOT 3 or SAE J1703 brake fluid
• Rag or paper towel
• Funnel (used only for adding brake fluid)
Engine/power
control unit cool-
ant level
(→ P. 584)
• “Toyota Super Long Life Coolant” or a similar high
quality ethylene glycol-based non-silicate, non-
amine, non-nitrite and non-borate coolant with long-
life hybrid organic acid technology
For the U.S.A.:
“Toyota Super Long Life Coolant” is pre-mixed with
50% coolant and 50% deionized water.
For Canada:
“Toyota Super Long Life Coolant” is pre-mixed with
55% coolant and 45% deionized water.
• Funnel (used only for adding coolant)
Engine oil level
(→ P. 581)• “Toyota Genuine Motor Oil” or equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses ( →P. 630)• Fuse with same amperage rating as original
Headlight aim
(→ P. 633)• Phillips-head screwdriver
Light bulbs
(→ P. 635)• Bulb with same number and wattage rating as origi-
nal
• Flathead screwdriver• Wrench
Radiator and con-
denser ( →P. 586)⎯
Page 580 of 784
580
PRIUS PRIME_OM_OM47A88U_(U)
7-3. Do-it-yourself maintenance
Engine compartment
Engine coolant reservoir (→ P. 584)
Fuse boxes ( →P. 630)
Engine oil level dipstick (→ P. 581)
Engine oil filler cap ( →P. 582)
Brake fluid reservoir (→ P. 590) Washer fluid tank (
→P. 592)
12-volt battery ( →P. 587)
Power control unit coolant
reservoir ( →P. 584)
Radiator ( →P. 586)
Condenser ( →P. 586)
Electric cooling fans1
2
3
4
5
6
7
8
9
10
11
Page 590 of 784
590
PRIUS PRIME_OM_OM47A88U_(U)
7-3. Do-it-yourself maintenance
■Checking fluid level
The brake fluid level should be
between the “MAX” and “MIN”
lines on the tank.
■Adding fluidSlide and lift up the rubber
strip to partly remove it as
shown.
Disconnect the claws and
remove the service cover.
Brake fluid
1
2
Page 591 of 784

PRIUS PRIME_OM_OM47A88U_(U)
5917-3. Do-it-yourself maintenance
7
Maintenance and care
Remove the reservoir cap.
Add brake fluid slowly while checking the fluid level.
Make sure to check the fluid ty pe and prepare the necessary item.
■Brake fluid can absorb moisture from the air
Excess moisture in the brake fluid can cause a dangerous loss of braking effi-
ciency. Use only newly opened brake fluid.
3
4
Fluid type FMVSS No.116 DOT 3 or SAE J1703 brake fluid
ItemsClean funnel
WARNING
■When filling the reservoir
Take care as brake fluid can harm your hands and eyes and damage
painted surfaces.
If fluid gets on your hands or in your eyes, flush the affected area with clean
water immediately.
If you still experience discomfort, see a doctor.
NOTICE
■If the brake fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads
wear out or when the fluid level in the accumulator is high.
If the reservoir needs frequent refilling, there may be a serious problem.