Scion Q EV. Service Manual - part 20

318

7-3. Do-it-yourself maintenance

Turn the bulb base clock-
wise.

Unplug the connector while
pulling the lock release.

Replace the light bulb, and
install the bulb base.

Align the 3 tabs on the light bulb
with the mounting, and insert.

Turn and secure the bulb
base.

Shake the bulb base gently to
check that it is not loose, turn
the headlights on once and visu-
ally confirm that no light is leak-
ing through the mounting.

When replacing the left side bulb, install by conducting step 
with the directions reversed.

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4

5

6

7

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7-3. Do-it-yourself maintenance

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

Right side

Press the claw and remove
the washer inlet from the
bracket.

Turn the cover counterclock-
wise and remove it.

1

2

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7-3. Do-it-yourself maintenance

Turn the bulb base counter-
clockwise.

Unplug the connector while
pulling the lock release.

Replace the light bulb, and
install the bulb base.

Align the 3 tabs on the light bulb
with the mounting, and insert.

Turn and secure the bulb
base.

Shake the bulb base gently to
check that it is not loose, turn
the headlights on once and visu-
ally confirm that no light is leak-
ing through the mounting.

When replacing the right side bulb, install by conducting step 
with the directions reversed.

3

4

5

6

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■

Parking/front side marker lights

Turn the bulb base counter-
clockwise.

Remove the light bulb.

1

2

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7-3. Do-it-yourself maintenance

■

Front turn signal lights

Turn the bulb base counter-
clockwise.

Remove the light bulb.

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2

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7-3. Do-it-yourself maintenance

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■

Back-up lights, stop/tail and rear side marker lights and rear
turn signal lights

Open the back door. (

P. 134)

Folding down rear seatbacks. (

P. 140)

Remove the cover.

To prevent damage to the inte-
rior, cover the tip of the screw-
driver with a rag.

Turn the bulb bases counter-
clockwise.

Stop/tail and rear side
marker light

Rear turn signal light

Back-up light

Remove the light bulb.

Stop/tail and rear side
marker light

Rear turn signal light

Back-up light

1
2

3

4

1

2
3

5

1

2
3

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7-3. Do-it-yourself maintenance

■

License plate lights

Disengage the claws.

To prevent damage to the light,
cover the tip of the screwdriver
with a rag.

Remove the license plate
light.

Turn the bulb base counter-
clockwise.

Remove the light bulb.

1

2

3

4

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7-3. Do-it-yourself maintenance

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Replacing the following bulbs

If any of the lights listed below has burnt out, have it replaced by
your Scion dealer.
● Charging inlet light
● Side turn signal lights
● High mounted stoplight

■

When replacing the headlights

●

When installing a cover.

●

Right side headlight: Be sure to install the washer inlet properly.

●

Left side headlight: Be sure to install the fuse cover properly.

■

LED lights

The charging inlet light and high mounted stoplight consist of a number of
LEDs. If any of the LEDs burn out, take your vehicle to your Scion dealer to
have the light replaced.

■

Condensation build-up on the inside of the lens

Contact your Scion dealer for more information in the following situations.
Temporary condensation build-up on the inside of the headlight lens does not
indicate a malfunction.

●

Large drops of water have built up on the inside of the lens.

●

Water has built up inside the headlight.

Fix the harness using the projection
point on the cover.

 Harness

Projection 
point

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7-3. Do-it-yourself maintenance

CAUTION

■

Replacing light bulbs

●

Turn off the lights. Do not attempt to replace the bulb immediately after
turning off the lights. 
The bulbs become very hot and may cause burns.

●

Do not touch the glass portion of the light bulb with bare hands. Hold the
bulb by the plastic or metal portion.
If the bulb is scratched or dropped, it may blow out or crack.

●

Fully install light bulbs and any parts used to secure them. Failure to do so
may result in heat damage, fire, or water entering the headlight unit. This
may damage the headlights or cause condensation to build up on the lens.

■

To prevent damage or fire 

●

Make sure bulbs are fully seated and locked. 

●

Check the wattage of the bulb before installing to prevent heat damage.

327

8

When trouble arises

8-1. Essential information

Emergency flashers .......... 328

If your vehicle has to 

be stopped in an 
emergency ...................... 329

8-2. Steps to take in an 

emergency

If your vehicle needs 

to be towed ..................... 330

If you think 

something is wrong ......... 334

If a warning light turns on 

or a warning buzzer 
sounds ............................ 335

If a warning message 

is displayed ..................... 344

If you have a flat tire.......... 359

If the EV system 

will not start ..................... 375

If charging cannot be 

done ................................ 377

If the shift lever cannot 

be shifted from P............. 383

If the electronic key does 

not operate properly........ 384

If the 12-volt battery

is discharged................... 386

If your vehicle overheats ... 390

If the vehicle becomes 

stuck ............................... 393

328

8-1. Essential information

Emergency flashers

Press the switch.

All the turn signals will flash.
To turn them off, press the switch
once again.

■

Emergency flashers

If the emergency flashers are used for a long time while the EV system is not
operating (while the “READY” indicator is not illuminated), the 12-volt battery
may discharge.

The emergency flashers are used to warn other drivers when the
vehicle has to be stopped in the road due to a breakdown, etc.

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8

W
hen

 troub

le 
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 the 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 vehicle in a safe place by the road.

Stop the EV system.



If the shift lever cannot be shifted to N

Keep depressing the brake pedal with both feet to reduce vehicle
speed as much as possible.

To stop the EV system, press
and hold the power switch for 2
consecutive seconds or more,
or press it briefly 3 times or
more in succession.

Stop the vehicle in a safe place by the road.

Only in an emergency, such as if it becomes impossible to stop
the vehicle in the normal way, stop 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

4

CAUTION

■

If the EV system has to be turned off while driving

Power assist for the brakes and steering wheel will be lost, making the
brake pedal harder to depress and the steering wheel heavier to turn.
Decelerate as much as possible before turning off the EV system.

5

330

8-2. Steps to take in an emergency

If your vehicle needs to be towed

The following may indicate a problem with your transmission. Contact
your Scion dealer before towing.
● The EV system is operating but the vehicle will not move.
● The vehicle makes an abnormal sound.

If a tow truck is not available in an
emergency, your vehicle may be
temporarily towed using a cable or
chain secured to the emergency
towing eyelet. This should only be
attempted on hard surfaced roads
for short distances at under 18
mph (30 km/h). 
A driver must be in the vehicle to
steer and operate the brakes. The
vehicle’s wheels, drive train,
axles, steering and brakes must
be in good condition.

If towing is necessary, we recommend having your vehicle
towed by your Scion dealer or a commercial towing service,
using a lift-type truck or a flatbed truck.
Use a safety chain system for all towing, and abide by all state/
provincial and local laws.

Before towing

Emergency towing

331

8-2. Steps to take in an emergency

8

W
hen

 troub

le 
arises

Take out the towing eyelet. (

P. 360)

Remove the eyelet cover using
a flathead screwdriver. 

To protect the bodywork, place a
rag between the screwdriver and
the vehicle body as shown in the
illustration.

Insert the towing eyelet into the
hole and tighten partially by
hand.

Tighten down the towing eyelet
securely using a wheel nut
wrench

*

 or hard metal bar.

*

: Wheel nut wrench can be pur-

chased at your Scion dealer.

Do not tow with a sling-type truck
to prevent body damage.

Installing towing eyelet

1

2

3

4

Towing with a sling-type truck

332

8-2. Steps to take in an emergency

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.

■

Before emergency towing

Release the parking brake.

Shift the shift lever to N.

Turn the power switch to ACCESSORY (EV system off) or ON (EV system
operating) mode.

Towing with a wheel-lift type truck



From the front



From the rear 

Release the parking brake.

Use a towing dolly under the
front wheels.

Using a flatbed truck

1

2

3

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8-2. Steps to take in an emergency

8

W
hen

 troub

le 
arises

CAUTION

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

■

Caution while towing

●

Use extreme caution when towing the vehicle.
Avoid sudden starts or erratic driving maneuvers which place excessive
stress on the emergency towing eyelet and the cables or chains. Always
be cautious of the surroundings and other vehicles while towing.

●

Do not turn the power switch off. 
This may lead to an accident as the steering wheel will be locked.

●

If the EV system is off, the power assist for the brakes and steering will not
function, making steering and braking more difficult.

■

Installing towing eyelet to the vehicle

Make sure that towing eyelet is installed securely.
If not securely installed, towing eyelet may come loose during towing.

NOTICE

■

To prevent causing serious damage to the transmission when towing
using a wheel-lift type truck

Never tow this vehicle from the rear with the front wheels on the ground.

■

To prevent damage to the vehicle when towing using a wheel-lift type
truck

When raising the vehicle, ensure adequate ground clearance for towing at
the opposite end of the raised vehicle. Without adequate clearance, the
vehicle could be damaged while being towed.

■

To prevent body damage when towing with a sling-type truck

Do not tow with a sling-type truck, either from the front or rear.

■

To prevent causing serious damage to the transmission in emergency
towing

Never tow a vehicle from the rear with four wheels on the ground. This may
cause serious damage to the transmission.