Page 422 of 600
4227-3. Do-it-yourself maintenance
PRIUS c_U
Engine compartment
Fuse boxes (P. 4 5 4 )
Engine oil filler cap ( P. 4 2 4 )
Engine coolant radiator cap
Power control unit
coolant reservoir ( P. 4 2 6 )
Brake fluid reservoir ( P. 4 2 8 )
Engine coolant reservoir ( P. 4 2 6 ) Engine/power control unit
coolant radiator (
P. 428)
Electric cooling fan
Condenser ( P. 428)
Engine oil level dipstick ( P. 423)
Washer fluid tank ( P. 430)1
2
3
4
5
6
7
8
9
10
11
Page 428 of 600
4287-3. Do-it-yourself maintenance
PRIUS c_U
Check the radiator and condenser and clear away any foreign objects.
If either of the above parts is extremely dirty or you are not sure of
their condition, have your vehic le inspected by your Toyota dea ler.
■Checking fluid level
The brake fluid level should be
between the “MAX” and “MIN”
lines on the tank.
■Adding fluid
Make sure to check the fluid type and prepare the necessary ite m.
Slide and lift up the rubber
strip and clips to partly
remove it as shown.
Radiator and condenser
WARNING
■ When the hybrid system is hot
Do not touch the radiators or condenser as they may be hot and cause seri-
ous injuries, such as burns.
Brake fluid
Fluid type FMVSS No.116 DOT 3 or SAE J1703 brake fluid
Item Clean funnel
1
Page 429 of 600
4297-3. Do-it-yourself maintenance
7
Maintenance and care
PRIUS c_U
Disconnect the claws and
remove the service cover.
Remove the reservoir cap.
Add brake fluid slowly while checking the fluid level.
■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.
2
3
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 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.
4
Page 469 of 600

4698-1. Essential information
8
When trouble arises
PRIUS c_U
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 lever to N.
If the shift lever 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 lever cann ot be shifted to N
Keep depressing the brake pedal with both feet to reduce vehicl e
speed as much as possible.
Vehicles without a smart key
system: Stop the hybrid system
by turning the power switch to
the “ACC” position.
Vehicles with a smart key sys-
tem: 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.
If your vehicle has to be stopped in an
emergency
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
4
Press and hold for 2 seconds or
more, or press briefly 3 times or
more
Q
R
Page 473 of 600
4738-2. Steps to take in an emergency
8
When trouble arises
PRIUS c_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 frontFrom the rear
Release the parking brake. Us e a towing dolly under the
front wheels.
Page 474 of 600
4748-2. Steps to take in an emergency
PRIUS c_U
If your vehicle is transported by a
flatbed truck, it should be tied
down at the locations shown in the
illustration.
If you use chains or cables to tie
down your vehicle, the angles
shaded in black must be 45.
Do not overly tighten the tie
downs or the vehicle may be dam-
aged.
If a tow truck is not available in an emergency, your vehicle m ay be
temporarily towed using cables or chains secured to the emergen cy
towing eyelets. This should only be attempted on hard surfaced roads
for short distance at u nder 18 mph (30 km/h).
A driver must be in the vehicle to steer and operate the brakes . The
vehicle’s wheels, drive train, a xles, steering and brakes must be in
good condition.
Using a flatbed truck
Emergency towing
Page 476 of 600
4768-2. Steps to take in an emergency
PRIUS c_U
Securely attach cables or chains to the towing eyelet.
Take care not to damage the vehicle body.
Vehicles without a smart key system: Enter the vehicle being to wed
and start the hybrid system.
If the hybrid system does not start, turn the power switch to the “ON” posi-
tion.
Vehicles with a smart key system : Enter the vehicle being towed
and start the hybrid system.
If the hybrid system does not start, turn the power switch to O N mode.
Shift the shift lever to N and release the parking brake.
When the shift lever cannot be shifted: P. 2 0 4
■While towing
If the hybrid system is off, the power assist for the brakes an d steering will not
function, making steering and braking more difficult.
■ Wheel nut wrench
Wheel nut wrench is installed in luggage compartment. (P. 506)
5
6
7
Page 479 of 600
4798-2. Steps to take in an emergency
8
When trouble arises
PRIUS c_U
●Fluid leaks un der the vehicle
(Water dripping from the air conditioning a fter use is normal.)
● Flat-looking tires or uneven tire wear
● is shown on the multi-information display
● Changes in exhaust sound
● Excessive tire squeal when cornering
● Strange noises related to the suspension system
● Pinging or other noises related to the hybrid system
● Engine missing, stumb ling or running roughly
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking
● Vehicle pulls heavily to one s ide when driving on a level road
● Loss of brake effectiveness, spongy feeling, pedal almost touch es
the floor
If you think something is wrong
If you notice any of the followi ng symptoms, your vehicle proba -
bly needs adjustment or repair. Contact your Toyota dealer as
soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms