Scion Q EV. Service Manual - part 17

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Chock

the tires.

: Chock can be purchased at

your Scion dealer.

Remove the wheel ornament
using the wrench.

To protect the wheel ornament,
place a rag between the wrench
and the wheel ornament.

: Wheel nut wrench can be pur-

chased at your Scion dealer.

Slightly loosen the wheel nuts
(one turn).

Replacing a tire

Tire position

Wheel chock positions

Front

Left-hand side

Behind and in front of the rear right-hand side
tire

Right-hand side

Behind and in front of the rear left-hand side
tire

Rear

Left-hand side

Behind and in front of the front right-hand side
tire

Right-hand side

Behind and in front of the front left-hand side
tire

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Check the jack point.

Turn the tire jack portion “A” by
hand until the notch of the jack
is in contact with the jack point.

Raise the vehicle until the tire is
slightly raised off the ground.

Outer

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Remove all the wheel nuts and
the tire.

When resting the tire on the
ground, place the tire so that the
wheel design faces up to avoid
scratching the wheel surface.

CAUTION

■

Replacing a tire

●

Observe the following precautions.
Failure to do so may result in serious injury:

• Do not try to remove the wheel ornament by hand. Take due care in

handling the ornament to avoid unexpected personal injury.

• Do not touch the disc wheels or the area around the brakes immedi-

ately after the vehicle 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 changing a tire, etc. may result
in burns.

●

Failure to follow these precautions could cause the wheel nuts to
loosen and the tire to fall off, resulting in death or serious injury.

• Have the wheel nuts tightened with a torque wrench to 76 ft·lbf (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 specifi-

cally designed for that wheel.

• If there are any cracks or deformations in the bolt screws, nut

threads or bolt holes of the wheel, have the vehicle inspected by
your Scion dealer.

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Remove any dirt or foreign mat-
ter from the wheel contact sur-
face.

If foreign matter is on the wheel
contact surface, the wheel nuts
may loosen while the vehicle is in
motion, causing the tire to come
off.

Install the tire and loosely
tighten each wheel nut by hand
by approximately the same
amount.

Turn the wheel nuts until the
washers come into contact with
the disc wheel.

CAUTION

■

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 tightened,
leading to bolt or disc wheel damage. In addition, the oil or grease can
cause the wheel nuts to loosen and the wheel may fall off, causing an
accident and resulting in death or serious injury. Remove any oil or
grease from the wheel bolts or wheel nuts.

Installing the tire

●

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 or serious injury.

Tapered
portion

Disc wheel

Washer

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Lower the vehicle.

Firmly tighten each wheel nut
two or three times in the order
shown in the illustration.

Tightening torque:
76 ft·lbf (103 N·m, 10.5 kgf·m)

Reinstall the wheel ornament.

Align the hole of the wheel orna-
ment with the valve stem as
shown.

Stow the tire jack and all tools.

■

After completing the tire change

The tire pressure warning system must be reset. (

P. 286)

CAUTION

■

After using the tools and jack

There are no places to install the jack, wheel nut wrench and wheel
chocks, so do not put it inside the vehicle.
Failure to follow the precaution could cause the interior to get damaged,
the tools may fly out in events such as sudden braking, and may cause
an accident.

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NOTICE

■

When replacing the tires

When removing or fitting the wheels, tires or the tire pressure warning
valve and transmitter, contact your Scion dealer as the tire pressure
warning valve and transmitter may be damaged if not handled correctly.

■

To avoid damage to the tire pressure warning valves and transmit-
ters

When a tire is repaired with liquid sealants, the tire pressure warning
valve and transmitter may not operate properly. If a liquid sealant is
used, contact your Scion dealer or other qualified service shop as soon
as possible. Make sure to replace the tire pressure warning valve and
transmitter when replacing the tire. (

P. 286)

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Motor compartment

Washer fluid tank (

P. 283)

Inverter coolant reservoir

(

P. 278)

12-volt battery

(

P. 281)

Brake fluid reservoir

(

P. 279)

Fuse boxes

(

P. 301)

Radiator (

P. 279)

Electric cooling fan

Condenser (

P. 279)

1
2

3
4

5
6
7
8

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278

The coolant level is satisfactory if it is between the “F” (Full) and “L”
(Low) lines on the reservoir when the EV system is cold.

Reservoir cap

“F” line

“L” line

If the level is on or below the “L”
line, add coolant up to the “F”
line. (

P. 390)

■

Coolant selection

Only use “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.

“Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deion-
ized water. (Minimum temperature: -31

F [-35C])

For more details about inverter coolant, contact your Scion dealer.

■

If the coolant level drops within a short time of replenishing

Visually check the radiator, hoses, inverter coolant reservoir cap, drain cock
and water pump.
If you cannot find a leak, have your Scion dealer test the cap and check for
leaks in the cooling system.

Inverter coolant

1
2
3

CAUTION

■

When the EV system is hot

Do not remove the inverter coolant reservoir cap. (

P. 391)

The cooling system may be under pressure and may spray hot coolant if the
cap is removed, causing serious injuries, such as burns.

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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 vehicle inspected by your Scion dealer.

■

Checking fluid level

The brake fluid level should be
between the “MAX” and “MIN”
lines on the tank.

NOTICE

■

When adding coolant

Coolant is neither plain water nor straight antifreeze. The correct mixture of
water and antifreeze must be used to provide proper lubrication, corrosion
protection and cooling. Be sure to read the antifreeze or coolant label.

■

If you spill coolant

Be sure to wash it off with water to prevent it from damaging parts or paint.

Radiator and condenser

CAUTION

■

When the EV system is hot

Do not touch the radiator or condenser as they may be hot and cause seri-
ous injuries, such as burns.

Brake fluid

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■

Adding fluid

Make sure to check the fluid type and prepare the necessary item.

Disconnect the claws to
remove the service cover as
shown in the illustration.

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 of braking effi-
ciency. Use only newly opened brake fluid.

Fluid type

FMVSS No.116 DOT 3 or SAE J1703 brake fluid

Items

Clean funnel

CAUTION

■

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.

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Check the 12-volt battery as follows:

■

12-volt battery exterior

Make sure that the 12-volt battery terminals are not corroded and
that there are no loose connections, cracks, or loose clamps.

Terminals

Hold-down clamp

■

Before recharging

When recharging, the 12-volt battery produces hydrogen gas which is flam-
mable and explosive. Therefore, observe the following precautions before
recharging:

●

If recharging with the 12-volt battery installed on the vehicle, be sure to dis-
connect the ground cable.

●

Make sure the power switch on the charger is off when connecting and dis-
connecting the charger cables to the 12-volt battery.

NOTICE

■

If the 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.

12-volt battery

1
2

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■

After recharging/reconnecting the 12-volt battery

●

Unlocking the doors using the smart key system may not be possible imme-
diately after reconnecting the 12-volt battery. If this happens, use the wire-
less remote control or the mechanical key to lock/unlock the doors.

●

Start the EV system with the power switch in ACCESSORY mode. The EV
system may not start with the power switch turned off. However, the EV sys-
tem will operate normally from the second attempt.

●

The power switch mode is recorded by the vehicle. If the 12-volt battery is
reconnected, the vehicle will return the power switch mode to the status it
was in before the 12-volt battery was disconnected. Make sure to turn the
power switch off before disconnect the 12-volt battery. Take extra care when
connecting the 12-volt battery if the power switch mode prior to discharge is
unknown.

If the system will not start even after multiple attempts at all methods above,
contact your Scion dealer.

CAUTION

■

Chemicals in the 12-volt battery

The 12-volt battery contains poisonous and corrosive sulfuric acid and may
produce hydrogen gas which is flammable and explosive. To reduce the risk
of death or serious injury, take the following precautions while working on or
near the 12-volt battery:

●

Do not cause sparks by touching the 12-volt battery terminals with tools.

●

Do not smoke or light a match near the 12-volt battery.

●

Avoid contact with eyes, skin and clothes.

●

Never inhale or swallow electrolyte.

●

Wear protective safety glasses when working near the 12-volt battery.

●

Keep children away from the 12-volt battery.

■

Where to safely charge the 12-volt battery

Always charge the 12-volt battery in an open area. Do not charge the
12-volt battery in a garage or closed room where there is insufficient ventila-
tion.

■

How to recharge the 12-volt battery

Only perform a slow charge (5 A or less). The 12-volt battery may explode if
charged at a quicker rate.

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If the washer fluid level is at
“LOW”, add washer fluid.

CAUTION

■

Emergency measures regarding electrolyte

●

If electrolyte gets in your eyes
Flush your eyes with clean water for at least 15 minutes and get immedi-
ate medical attention. If possible, continue to apply water with a sponge or
cloth while traveling to the nearest medical facility.

●

If electrolyte gets on your skin
Wash the affected area thoroughly. If you feel pain or burning, get medical
attention immediately.

●

If electrolyte gets on your clothes
It can soak through clothing on to your skin. Immediately take off the cloth-
ing and follow the procedure above if necessary.

●

If you accidentally swallow electrolyte
Drink a large quantity of water or milk. Get emergency medical attention
immediately.

NOTICE

■

When recharging the 12-volt battery

Never recharge the 12-volt battery while the EV system is operating. Also,
be sure all accessories are turned off.

Washer fluid

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■

Using the gauge

The washer fluid level can be checked by
observing the position of the level on the
liquid covered holes in the gauge.
If the level falls below the second hole
from the bottom (the “LOW” position), refill
the washer fluid.

CAUTION

■

When adding washer fluid

Do not add washer fluid when the EV system is hot or operating as washer
fluid contains alcohol and may catch fire if spilled on the motor etc.

NOTICE

■

Do not use any fluid other than washer fluid

Do not use soapy water or antifreeze instead of washer fluid.
Doing so may cause streaking on the vehicle’s painted surfaces.

■

Diluting washer fluid

Dilute washer fluid with water as necessary.
Refer to the freezing temperatures listed on the label of the washer fluid bot-
tle.

Current
fluid
level

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