BYD L3. Service Manual — part 2

L3

Owner’s Manual

Keys and Doors 1-13

After replacing battery, please check
whether the card smart key works
normally. If the card smart key does not
work

well,

please

contact

BYD

authorized service station.

Specification of the card smart key

Frequency range: 433.050-434.790MHZ

Emission power ≤5500 μV/m (field
strength)

Spray emission limit: ≤610μV/m

Nominal frequency: 433.92MHZ

NOTICE

● Do

not

change

emission

frequency or increase emission
power

(including

adding

emission frequency amplifier).
Do not connect to external
antenna or use other emission
antenna.

● Do not interfere with legal radio

communication services. Once it
occurs, please stop using it and
take

measures

to

eliminate

interference before use it again.

● When using micropower radio

equipment, please be aware of
interference of various radio
businesses - or - radiated
interference - of - industrial,
scientific or medical appliances.

● It shall not be used at or near

airport.

Replace the electronic smart Key
battery

The electronic smart key is subject to
damage during battery replacement. It is
recommended to replace battery in BYD
authorized service station. If you replace
battery by yourself, ensure to use
CR1632 lithium battery or equivalent
and a flat head screwdriver.

FRIENDLY TIPS

Please pay specific attention to
avoid replaced the electronic smart
key battery or component being
swallowed by the children.

NOTICE

● Do not touch electric circuit.

Otherwise,

static

electricity

might cause damage to the
electronic smart key.

● Do

not

leave

out

any

component when replacing the
electronic smart key battery.

● Only same or similar type of

battery, recommended by the
BYD authorized service station,
can be used.

● Please observe local laws when

disposing used battery.

Replace the electronic smart key battery
in accordance with the following steps.

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Owner’s Manual

Keys and Doors 1-14

1. Pull down the release switch and

take out the mechanical key.

2. Open the electronic smart key cover

with a flat head screw driver or
similar tools.

3. Remove the electronic smart key

battery which has run out of power
with a flat head screw driver or a
similar tool. Insert the tool into guide
slot and inflict force in the direction
as shown in the figure above to get
out the battery.

NOTICE

Do not refit the battery cover to avoid
fault.

4. Put the new battery inside the box

with its cathode (+) upward.

Close the electronic smart key cover
tightly.

After closing the battery cover, insert the
mechanical key into the electronic smart
key.

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Owner’s Manual

Keys and Doors 1-15

NOTICE

● Please install a battery with its

anode

terminal

and

cathode

terminal in correct position.

● Do not replace battery with wet

hands. Water might cause rust.

● Do not touch or move any part

inside the smart key. Otherwise, it
might affect the normal operation.

● Do not bend electrode when

inserting the electronic smart key
battery. There should be no dust
or greasy dirt in the battery box.

● Close the electronic smart key

cover tightly.

Check whether the electronic smart key
is operating normally after replacing its
battery. If the electronic smart key still
cannot operate properly, you can
contact with BYD Auto authorized
service shop.

Specification of the electronic smart key

Frequency range: 433.050-434.790MHZ

Emission power ≤5500

μV/m

(field

strength)

Spray emission limit: ≤610μV/m

Nominal frequency: 433.92MHZ

NOTICE

● Do

not

change

emission

frequency or increase emission
power (including adding emission
frequency

amplifier).

Do

not

connect to external antenna or
use other emission antenna.

● Do not interfere with legal radio

communication services. Once it
occurs, please stop using it and
take

measures

to

eliminate

interference before use it again.

● When using micropower radio

equipment, please be aware of
interference

of

various

radio

businesses

or

radiated

interference

of

industrial,

scientific or medical appliances.

● It shall not be used at or near

airport.

The Smart Entry and Starting System

The smart entry and starting system
mainly exerts the following functions.

● Wireless remote control function

(refer to “Wireless Remote Control”
in this section for details)

● Access function and startup function

(refer to “Access Function and
Startup Function” in this section)

● Steering locking function (refer to

“Steering Locking Function” in this
section)

● Button startup function (refer to

“Engine Startup Method” in this
section)

FRIENDLY TIPS

● Those who are implanted with

cardiac pacemaker or cardiac
defibrillator shall keep away
from

antenna

of

intelligent

access and keyless startup
system,

as

electromagnetic

wave may affect normal use of
these

appliances.

Refer

to

“Antenna position” in the
chapter for antenna position.

● Besides those who wear cardiac

pacemaker or defibrillator, users

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Owner’s Manual

Keys and Doors 1-16

of other electronic medical
appliances should also consult
with manufacture about electro
the mechanical effect on these
appliances.

Electromagnetic

wave might cause unpredicted
consequence on use of these
medical appliances.

Access function

Startup function

Access

Function

and

Startup

Function

The smart key (the electronic smart
key or the card smart key) might
unlock or lock car door and start up
the engine.

Access function

—Lock or unlock car

door. Refer to “The Front Door” in this
section for details.

Startup function

—The smart key inside

the car can switch power mode and start
the engine. Refer to “How to start the

engine” in this section for details.

Steering Locking Function

When you use wireless remote control
and micro switch to lock car door, the
steering wheel will be locked.

When the key is inside the car, press
“start/stop” switch to unlock steering lock.
If the green indicator on “start/stop”
switch blinks, it indicates that the
steering function is locked. To unlock it,
please slightly sway the steering wheel
while pressing “start/stop”. If the green
indicator still blinks, it indicates that
there is a fault in steering function.
Please contact BYD authorized service
station for car examination. Refer to
“start the engine” in this section for
details.

L3

Owner’s Manual

Keys and Doors 1-17

Antenna position

1. Antenna located outside car.

2. Antenna located inside car.

Activation zone

When a registered the smart key enters
activation zone, access function and
startup function will be activated.

1. Activation zone of access function

— within 0.7 m from micro switch of
the front outside car door handle. If
the smart key is too close to car
door handle or car window, it might
not activate access function.

2. Activation zone of startup function

— within the car.

If the smart key is on the instrument
panel or in the trunk, glove box or on the
floor, it might not activate startup
function.

In the following cases, the smart entry
and starting system might not work
normally.

● When there is a facility which emits

strong electromagnetic wave, such
as a television tower, power station
or broadcast station.

● When the smart key is carried

together with some communication
devices, such as two-way radio
communication device or mobile
phone.

● When the smart key is contacted or

covered by metal objects.

● When the car door handle is

operated rapidly.

● When the smart key approaches the

car door handle.

● When other people use wireless

remote control function in a nearby
car.

● When battery runs out of power.

Please refer to “Replace the card
smart key battery” and “Replace the
electronic smart key battery” in this
section when replacing battery.

● When the smart key is nearby high

pressure equipment or equipment
generating noise.

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Owner’s Manual

Keys and Doors 1-18

● When the smart key is carried

together with the smart entry and
starting system key of other cars or
other devices emitting radio wave.

● Even if within activation zone, the

smart key might not work normally
due to position of the smart key or
shape of car body.

If you cannot enter the car due to the
intelligent access and keyless startup
system which do not work normally,
use wireless remote control function
to unlock and lock all car doors.

When the smart key of another car
approaches the smart key of this car, the
time spent on unlocking car door might
be longer than usual, which is not a
malfunction.

If the smart key battery runs out of
power

If the indicator of the electronic smart
key does not blink and startup function
fails to start the engine, the reason might
be that the battery has run out of power.
Please replace battery as soon as

possible. (Please refer to “Replace the
electronic smart key battery” in the
chapter.)

Now, you can use the card smart key to
start the engine.

If the card smart key or electronic key
also runs out of power, please start the
engine in the following steps.

1. Step on braking pedal or press

“start/stop” switch and the key
position indicator of the smart key
system on the instrument panel will
be turned on.

2. Draw the electronic smart key or the

card smart key up to “start/stop”
switch within 30 seconds after the
buzzer beeps.

3. In 5 seconds after the smart key

approached, press the “start/stop”
switch to start the engine.

If you cannot enter your car or cannot
start the engine with the smart key, it
is possible that the battery has run
out. Be sure to replace the battery as
soon as possible. (Please refer to
“Replace the card smart key battery”
and “Replace the electronic smart
key battery” in this section)

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Owner’s Manual

Keys and Doors 1-19

Save Battery Power

Even if the car is not driven, the key and
the car communicate with each other.
Therefore, stop leaving the key near the
car (within 2 m).

If the car has been not in use for a long
time, the storage battery might run out of
power. Please disconnect cathode
terminal of the storage battery to prevent
running out of power.

In order to activate the smart entry
and starting system again, please use
any of the following operation
method:

1.1. Press the micro switch of external car
door handle while carrying a smart key.

1.2. Perform wireless remote control
operation.

If the smart key receives strong
electromagnetic wave for a long time,
battery power might run out rapidly. The
smart key must be kept at a minimum
distance of 1 m from the following
appliances.

● Television

● Personal computer

● Wireless phone charger

● Electrolier

● Fluorescent lamp

FRIENDLY TIPS

Alteration and refitting without
consent by authorized organization
might cause some equipment out of
normal work.

If the smart entry and starting system
fails to operate normally due to fault,
please contact BYD service station.
Be sure to take all the smart keys
with you. They might be necessary
for system repair.

Specification of the smart entry and
starting system Key

Frequency range: 433.050-434.790MHZ

Emission power ≤5500 μV/m (field
strength)

Spray emission limit: ≤610μV/m

Nominal frequency: 433.92MHZ

Internal and external specification of
the smart entry and starting system
transmitter


Emission

magnetic

field

strength:

72dBuA/m (10 meters away, quasi-peak
value)

Spray

emission

limit::

27dBuA/m

(10meters away，quasi-peak value)

NOTICE

● Do

not

change

emission

frequency or increase emission
power (including adding emission
frequency

amplifier).

Do

not

connect to external antenna or
use other emission antenna.

● Do not interfere with legal radio

communication services. Once it
occurs, please stop using it and

L3

Owner’s Manual

Keys and Doors 1-20

take

measures

to

eliminate

interference before use it again.

● When using micropower radio

equipment, please be aware of
interference

of

various

radio

businesses

or

radiated

interference

of

industrial,

scientific or medical appliances.

● It shall not be used at or near

airport.

The Front Door

Lock and unlock with a mechanical key

Insert the Key into Keyhole and
Revolve it.
Lock: revolve the key counterclockwise

at left the front door;

Revolve the key clockwise at right the
front door.

Unlock: revolve the key clockwise at left
the front door;

Revolve the key counterclockwise at
right the front door.

Lock and unlock

When you carry a registered the smart
entry and starting system key (the
electronic smart key or the card smart
key; only the electronic smart key is

shown in the figure) into an activation
zone, you can lock or unlock all car
doors without using the key.

Locking operation

Press the micro switch button of
external car door handle in a slow
and steady way. All car doors are
locked at the same time. At this time,
the turn signal light blinks once.

Pressing micro switch button in the
following cases will not perform the
locking function.

● When a door is not closed well.
●

When you press the locking button

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Owner’s Manual

Keys and Doors 1-21

while opening or closing car door.

●

When the engine is not turned off.

●

When the power position is at
“ACC” or “ON”.

Unlocking operation

Press the micro switch button of
external car door handle in a slow
and steady way. All car doors are
unlocked at the same time. At this
time, the turn signal light blinks
twice.

Please open the car door within 30
seconds after using unlocking function.

Otherwise, all car doors will be locked
again.

When locking a car door with the smart
entry and starting system, please check
whether the car door is unlocked before
pulling at car door handle.

Use internal wedging block to lock and
block

Turn Lock Button.

Unlock: pull the lock button backward.

Lock: push the lock button forward.
When the internal wedging block button

is at locking position, you can also open
the driver side door from inside.

FRIENDLY TIPS

Do not pull the internal button of the
driver side door during driving.
Otherwise opened door might cause
accident and severe injury.

Use the central control lock switch to
lock and unlock




Press the Switch.

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Owner’s Manual

Keys and Doors 1-22

Unlock: press down the rear side of the
switch.

Lock: press down the front side of the
switch.

All car doors are unlocked and locked at
the same time.

Automatic locking and unlocking of
car door

When the car speed exceeds 20 km/h,
all car doors will be locked automatically.

When you press “start/stop” switch to
turn the power position from ON to OFF,
all

car

doors

will

be

opened

automatically.

Electric Door Windows

The switch on each door car can
operate door window.

Power position must be at “ON” position.

Operation of the driver side door
window

Use the switch on the driver side
door.

The normal operation: Press the
switch downward slightly/press the

switch downward to the end/press the
switch upward.

Open: Press the switch downward
slightly, but not to the end, and then
release the button.

Close: Pull the switch upward slightly
and hold it until it is closed. If you want
to stop it, just press the switch
downward.

Automatic drop of the driver side
door window (AUTO) operation: Press
the switch downward to the full and then

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Owner’s Manual

Keys and Doors 1-23

release it until the window is opened to
the full. If you want the window to be
opened halfway, please pull the switch
upward slightly and then release it.

Operation of passenger door window

Switch of any passenger door or the
driver door can be used to control
passenger door window.

The normal operation: Press the switch
to raise or drop the door window.

Open: Press the switch downward.

Close: Pull the switch upward.

If you press the locking switch of the
driver side door window, passenger side
door window cannot move but the driver
side door window can be operated.

FRIENDLY TIPS

● The electric door window does

not

provide

anti-clamping

function. Please pay attention to
your safety when operating.

● When a child is in the car, please

use door window locking switch
to

prevent

him

(her)

from

tampering with electric door
window switch.

● When you leave the car, be sure

to take the smart key with you.

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Owner’s Manual

Keys and Doors 1-24

The Trunk Cover

To open the trunk cover from outside,
please insert the main key and rotate it
clockwise.

For notes on loading luggage, refer to
“notes on luggage loading” in section 2.

To close the trunk cover, please pull and
press it downward. After closing the
trunk cover, please try to pull it upward
to check whether it has been closed
tightly.

FRIENDLY TIPS

During driving, please keep the
trunk cover closed tightly. This
not only prevents luggage from
getting out but also prevents
waste gas from getting into the
car.

Electric switch of the trunk cover (if
installed)

In the case of whole-the vehicle locking,
press the trunk micro switch in a slow
and steady way to unlock all car doors at
the same time. At this time, the turn
signal light blinks twice.

In the case of whole-the vehicle
unlocking, press the trunk micro switch

in a slow and steady way to lock all car
doors at the same time. At this time, the
turn signal light blinks once.

In the case of whole-the vehicle
unlocking, press the trunk cover to open
the trunk.

After performing locking with central
control, pressing the trunk cover will not
open the trunk.

When using the electronic smart key or
micro switch to lock the car when four
doors or the trunk is not closed, the car
alarm will ring once and the turn signal
light does not blink.

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Owner’s Manual

Keys and Doors 1-25

Internal Wedging Block of the Trunk

To open the trunk cover from the driver’s
seat, please pull internal wedging block
of the trunk upward.

Engine Hood

Open the Engine Hood

1. Pull internal wedging block of the
engine hood upward to pop up the
engine hood slightly.

FRIENDLY TIPS

Before driving, please confirm that
the engine hood has been closed and
locked tightly. Otherwise, the engine
hood might be opened suddenly
during driving to cause accident.

2. Pull up the auxiliary handle of the
engine hood lock and lift the engine
hood in the front of the car.

3. Insert the engine jackstay into the slot
to keep the engine hood open.

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Owner’s Manual

Keys and Doors 1-26

Before closing the engine hood, please
check whether any tool or rag is lost
inside the engine hood before moving
the engine hood jackstay back to its
former position. Then, lower the engine
hood and check whether it is locked in
place. If necessary, please press the
front edge slightly to lock it.

FRIENDLY TIPS

After inserting the engine hood
jackstay into the slot, please check
whether the engine hood jackstay is
supporting the engine hood firmly in
order to prevent the engine hood
from dropping to prevent the engine
hood from falling down and causing
injury.

Anti-Theft System

In order to prevent car theft, when any
car door is opened when the car is
under anti-theft condition, the system
will give out alert.

The alarm rings and the steering lamp
blink.

Setting System

1. Turn off the engine.

2. Get off all passengers.

3. Lock all car doors.

When all car doors are locked, the
anti-theft indicator will remain on. 10
seconds later, the anti-theft system will
be set automatically. When the system
is set, the anti-theft indicator will begin to
blink.

4. After confirming that the indicator
blinks, you may leave the car.

As unlocking the car door from inside
the car activates the system, nobody
should stay inside the car when setting
the system.

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Owner’s Manual

Keys and Doors 1-27

Activating System

In the following cases, the system
will give out alert.

●

When unlock a car door without
using the access function of the
smart key.

●

When powering up the car without
using the startup function of the
smart key.

Cancelling System

Stop alert in the following way:

●

Unlock car door with wireless
remote control.

●

Unlock car door with micro switch.

The Fuel Tank Cap

It indicates that the fuel filler lid is on the
left side of the car.

1. Pull up the internal wedging block of
the fuel filler lid to open the fuel filler lid.

In fuel injection, the engine should be
kept turned off.

FRIENDLY TIPS

● Do not smoke in fuel injection.

Sparks or flames will lead to
fires.

● For opening the fuel tank, the

cap should not be taken off
suddenly. In hot weather, if the
fuel tank cap is taken off
suddenly, pressurized fuel may
spurt out from the filling port
and cause human damage.

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Owner’s Manual

Keys and Doors 1-28

2. To remove the fuel tank cap, rotate
the cap counterclockwise slowly and
take it out after a while. After removing
the cap, please hang it on cap
supporter.

When the fuel tank cap is taken out, a
slight noise can be heard. It’s normal.
When mounting the cap, rotate the
cover clockwise until a click is heard.

FRIENDLY TIPS

● In order to prevent fuel spilling in

an unexpected accident, please
make sure to tighten the fuel tank
cap.

● When replacing the fuel tank cap,

please use an original The fuel tank
cap of BYD L3 car. It can adjust the
pressure of the fuel tank.

Starting the Engine

Before Starting the Engine

1. Please check surrounding of the car

before getting into the car.

2. Adjust seat position, seat back

angle, seat cushion height, head
protection

device

height

and

steering wheel angle and height.

3. Adjust

internal

and

external

rearview mirror.

4. Lock all car doors.

5. Fasten seat belt.

Engine Starting Methods

(a) Before Starting

1. Perform parking brake to the full.

2. Turn off all unnecessary car light

and accessories.

3. Automatic transmission: Place the

shift at position P or N.
Manual transmission: place the shift
at neutral position.

4. Press the braking pedal or the

clutch pedal to the full until the car
moves.

NOTICE

● Starting procedure should not

exceed 20 seconds to avoid
overheating

of

starter

and

wiring system.

● Do not operate the engine

refrigerator in a high speed.

● If it is hard to start the engine or

the

engine

shuts

down

frequently, please check the
engine immediately.

(b) Starting the Engine

Starting function of button

When the smart key is inside the car,
press “start/stop” switch to start the
engine.

Before starting the engine, be sure to
follow the description in “(a) Before
starting”.

Normal starting procedure

Only when the smart key is inside the
car (held by someone) can engine be
started.