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PRIUS PRIME_OM_OM47D13U_(U)
7-3. Do-it-yourself maintenance
Do-it-yourself ser vice 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. 5 9 3 )•Grease
• Conventional wrench (for terminal clamp bolts)
Brake fluid level
( P. 5 9 6 )• 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. 5 9 0 )
• “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. 5 8 7 )• “Toyota Genuine Motor Oil” or equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses ( P. 636)• Fuse with same amperage rating as original
Headlight aim
( P. 6 3 9 )• Phillips-head screwdriver
Light bulbs
( P. 6 4 1 )• Bulb with same number and wattage rating as origi-
nal
• Flathead screwdriver• Wrench
Radiator and con-
denser ( P. 592)
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586
PRIUS PRIME_OM_OM47D13U_(U)
7-3. Do-it-yourself maintenance
Engine compartment
Engine coolant reservoir ( P. 590)
Fuse boxes ( P. 636)
Engine oil level dipstick ( P. 587)
Engine oil filler cap ( P. 588)
Brake fluid reservoir ( P. 596) Washer fluid tank (
P. 598)
12-volt battery ( P. 593)
Power control unit coolant
reservoir ( P. 590)
Radiator ( P. 592)
Condenser ( P. 592)
Electric cooling fans1
2
3
4
5
6
7
8
9
10
11
Page 596 of 792
596
PRIUS PRIME_OM_OM47D13U_(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
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PRIUS PRIME_OM_OM47D13U_(U)
5977-3. 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 type and prepare the necessary item.
■ Brake fluid can absorb moisture from the air
Excess moisture in the brake fluid can cause a dangerous loss o f 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 damag e
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 t he brake pads
wear out or when the fluid level in the accumulator is high.
If the reservoir needs frequent refilling, there may be a serio us problem.
Page 615 of 792
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PRIUS PRIME_OM_OM47D13U_(U)
7-3. Do-it-yourself maintenance
7
Maintenance and care
Replacing the tire
●Stop the vehicle in a safe place on a hard, flat surface.
● Set the parking brake.
● Shift the shift position to P.
● Stop the hybrid system.
When raising your vehicle with a jack, position the jack cor-
rectly.
Improper placement m ay damage your vehicle or cause injury.
Before jacking up the vehicle
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PRIUS PRIME_OM_OM47D13U_(U)
7-3. Do-it-yourself maintenance
WARNING
■Replacing a tire
●Do not touch the disc wheels or the area around the brakes immedi-
ately after the vehi cle has been driven.
After the vehicle has been driven the disc wheels and the area around
the brakes will be extremely hot. Touching these areas with hands, feet
or other body parts while changin g a tire, etc. may result in burns.
●Failure to follow these precautions could cause the wheel nuts to
loosen and the t ire to fall off, resulting in death or serious injury.
• Have the wheel nuts tightened with a torque wrench to 76 ft•lb f
(103 N•m, 10.5 kgf•m) as soon as possible after changing wheels.
• When installing a tire, only use wheel nuts that have been spe cifi-
cally designed for that wheel.
• If there are any cracks or defo rmations in the bolt screws, nut
threads or bolt holes of the wheel, have the vehicle inspected by
your Toyota dealer.
• When installing the wheel nuts, be sure to install the wheel n uts with
the tapered ends facing inward. ( P. 6 1 3 )
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PRIUS PRIME_OM_OM47D13U_(U)
8
When trouble arises
8-1. Essential information
If your vehicle has to be stopped in an
emergency
Steadily step on the brake pedal with both feet and firmly depress it.
Do not pump the brake pedal repeatedly as this will increase th e effort
required to slow the vehicle.
Shift the shift position to N.
If the shift positi on is shifted to N
After slowing down, stop the vehi cle in a safe place by the road.
Stop the hybrid system.
If the shift position c annot be shifted to N
Keep depressing the brake pedal with both feet to reduce vehicl e
speed as much as possible.
To stop the hybrid system,
press and hold the power
switch for 2 consecutive sec-
onds or more, or press it briefly
3 times or more in succession.
Stop the vehicle in a s afe place by the road.
Only in an emergency, such as if it becomes impossible to stop
the vehicle in the normal way, st op the vehicle using the follow-
ing procedure:
1
2
3
4
3
Press and hold for 2 seconds or
more, or press briefly 3 times or
more
Q
WARNING
■ If the hybrid system has to b e turned off while driving
Power assist for the steering wheel will be lost, making the steering wheel
heavier to turn. Decelerate as m uch as possible before turning off the hybrid
system.
5
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6548-2. Steps to take in an emergency
PRIUS PRIME_OM_OM47D13U_(U)
Do not tow with a sling-type truck
to prevent body damage.
Towing with a sling-type truck
Towing with a wheel-lift type truck
From the front From the rear
Release the parking brake. Us e a towing dolly under the
front wheels.