BYD S1 EV User manual

1
Superb skills & honest hearts
BYD
Superior and Sincere Services
BYD sincere service brand was established in 2006, adhering to the service concept
of “Superb Skills & Honest Hearts” from all BYD after-sales staff.
In the article “A Famous Doctor with Superbe Skills & Honest Hearts”, Sun Simiao, a
famous doctor in Tang Dynasty, discussed two issues concerning medical ethics:
the first is “Superb”, that is, a doctor should have superb medical skills and must
learn medical knowledge extraordinary and diligently. The second is “Sincere”, that
is, a doctor should have a noble moral, and a sincere heart to regard one`s distress
as his. BYD after-sales staff have introduced the concept of “Superb Skills & Honest
Hearts” from Sun Simiao into the automobile after-sales field and defined
“Professional & Sincere” as BYD sincere service brand with the brand features as
below:
■Professional & High-quality
■Diligent & Focus
■Passionate & Sincere
■Active & Care
BYD sincere service firmly believes that the exquisite service technologies come
from professional, diligent, and sincere service attitudes, responsibilities and
intentions. We are always committed to providing a high level of after-sales services
for BYD Auto users and their cars.

2
Foreword
Welcome to use BYD passenger car; please read the manual carefully to help you normally
use and maintain your car.
Special note: It is strongly recommended to choose genuine spare parts and use, maintain
and repair your car in accordance with the requirements in the manual. For any car that is
replaced and modified with non-original spare parts, its performance may be affected,
especially for safety and durability; and the resulted damage and performance problems
will be beyond the warranty. In addition, any modification for your car may not be consistent
with national laws and regulations and local government regulations.
Thank you for choosing BYD passenger car; welcome your comments and suggestions. In
order to ensure better services for you, please be sure to provide your accurate contact
information. If there is any change, please contact BYD Auto Authorized Service Station to
update it in the system. At the same time, please pay attention to relevant national laws
and regulations and local policies and regulations, and register your car as soon as
possible; otherwise, there may be a risk of register rejection.
In the manual, the positions marked with “Tips”, “Notes” and “Warnings” must be followed
carefully, to avoid any injury or damage. The representations and usages of various
reminding information types are as follows:
Tip
It refers to any item that must be followed for ease maintenance.
Note
It refers to any item to prevent any injury or damage.
Warning
It refers to any item to prevent any injury.

3
The safety mark shown on the left indicates “Not Do It” or “Not Allow Its
Occurrence”.
The manual is used to help you use the product correctly and does not
represent any description of the configuration and software version of
the product. For product configurations and software versions, please
consult the contract associated with the product (if any) or consult your
vendor.
To inquire for the power battery recycling network, please access the
official website of BYD Auto:
https://www.byd.com/cn/socialresponsibility/batteryrecycle.html
For detailed product usage instructions, please follow “BYD Fans Club”
on WeChat, or scan the following small program QR code.
201906 version
BYD Auto Industry Co., Ltd. All rights reserved
Any part or all of the manual cannot be reproduced or copied
without the written permission of BYD Auto Industry Co., Ltd.
All copyrights are reserved

4
Overview of BYD S1 EV passenger car
BYD S1 EV car is a new energy, new power and pure electric passenger
vehicle, and is an environmentally friendly product strived by BYD. The
body is a load-bearing type, the stringer is front-and-back through type,
and the power battery pack is integrated with the body to fully guarantee
the safety of the battery pack and the car.
Since BYD S1 EV car is driven by a motor under various operating
conditions, it has completely achieved zero emissions in terms of
environmental protection.
The car is completely driven under pure electric power conditions, so the
noise inside and outside the car is extremely small, which can provide
users with driving and riding experiences that the fuel-driven car cannot
achieve.
The safety of the high-voltage system is fully considered in the design
process of the car, and the safety of the passengers in the car can be
fully protected in case of any collision.
The battery management unit can be used to monitor the power battery
at all times, and adjust the power output from each battery unit based on
various performance indexes, such as voltage and current, to prevents a
series of faults affecting battery performance, such as overcharge,
overdischarge, and overtemperature, and so as to ensure the battery
operation under normal conditions.
The 120kW motor or 70kW motor can provide high speed and high
torque for S1 EV to realize powerful startup and acceleration
performance.

5
Picture Index
Search by illustration
1
Safety
Make sure to read this section carefully
2
Dashboard
How to read various meters, warning lights, indicators, and etc.
3
Controller
operation
Opening and closing of doors and windows adjustment before driving,
and etc.
4
Use and drive
Necessary driving operations and suggestions
5
Interior devices
Use of interior devices, etc.
6
Maintenance
Car maintenance steps
7
In case of a fault
Countermeasures in case of a fault or emergency
8
Vehicle
specifications
Vehicle specifications, customized functions, etc.
Index
Alphabet index

6
Contents
Superior and Sincere Services.................1
Foreword..................................................... 2
Overview of BYD S1 EV passenger car ...4
1
Safety
1-1 Seatbelt..............................................18
Introduction to the seatbelt .................18
Use of seatbelt....................................20
1-2 Airbag system...................................23
Introduction to the airbag system .......23
Driver and front passenger airbags ....24
Front passenger seat side airbag (if
fitted)...................................................27
Side curtain airbag (if fitted)................28
Airbag triggering conditions and notes
............................................................29
1-3 Child restraint device ........................35
Child restraint device..........................35
Installation of child restraint device.....36
1-4 Anti-theft system ...............................40
Anti-theft system.................................40
2
Dashboard
2-1 Dashboard.........................................42
Dashboard view..................................42
Indicator/ warning indicator.................43
3
Controller Operations
3-1 Key and door.....................................54
Key......................................................54
Lock/unlock the door...........................57
Smart access and start system...........61
Child lock.............................................65
3-2 Seat.....................................................66
Front seat adjustment .........................66
Rear seat folding.................................68
Headrest..............................................69
3-3 Steering wheel...................................70
Steering wheel adjustment..................70
3-4 Switch.................................................71
Light switch .........................................71
Wiper switch........................................77
Front left door switch assembly ..........81
Passenger window control switch.......84
Emergency warning indicator switch...85
Lighting adjustment switch group........85
Mode switch group..............................86
Steering wheel switch group...............87
Sunroof switch (if fitted).......................95
B-call/E-call switch(if fitted).................97
Indoor light switch ...............................98
4
Use and drive
4-1 Charge device..................................103
Charge instructions...........................103
Charge method .................................107
Smart charge function.......................112
Charging port electric lock control
function..............................................112

Contents
7
4-2 Battery .............................................116
Power battery....................................116
Battery ..............................................119
4-3 Use essentials................................. 121
Running-in period .............................121
Trailer towing....................................121
How to save the power and extend
the service life of your car.................122
Carry the luggage.............................124
Fire prevention..................................125
4-4 Start and drive ................................127
Start..................................................127
Remote start function .......................130
Gear actuator....................................131
Electronic parking.............................132
Driving essentials..............................136
4-5 Use of driver assistance functions
..........................................................139
Cruise control (if fitted)......................139
Panoramic image system (if fitted) ...142
Parking image system (if fitted) ........144
Parking assist system (if fitted).........148
Driving safety system........................153
Low speed sound system (AVAS) (if
fitted).................................................157
Tire pressure monitoring...................159
4-6 Other main function descriptions
..........................................................163
Exterior rearview mirror defroster.....163
Interior rearview mirror (if fitted) .......165
Wiper ................................................166
Snow chain.......................................168
5
Interior devices
5-1 Multimedia and radio......................170
Multimedia operation panel...............170
Radio operation panel.......................172
5-2 Air conditioning...............................173
A/C panel (if fitted) ............................173
A/C operation panel (if fitted)............174
A/C operation panel and interface (if
fitted).................................................175
Function definition.............................176
Air vent..............................................180
Purifying system (if fitted)..................181
5-3 Storage device ................................184
Right storage box..............................184
Mobile phone slot..............................184
Cup holder.........................................184
Central storage box...........................185
Card slot............................................185
Front central armrest storage box.....185
Rear storage box...............................186
5-4 Other interior device.......................187
Sunvisor............................................187
Safety handle....................................188
Front row USB/charging port ............188
Rear charging port (if fitted) ..............189
12V standby power supply................189

8
Contents
6
Maintenance
6-1 Maintenance instructions ..............192
Maintenance cycle and content........192
6-2 Regular maintenance .....................198
Regular maintenance........................198
Car corrosion protection ...................198
Painted surface maintenance tips ....199
Clean the car ....................................200
Clean the inside of the car................202
6-3 Auto-mantenimiento....................... 205
Notes about self-maintenance..........205
Front hatch........................................208
Cooling system.................................209
Scrubber...........................................210
Braking system.................................211
Wiper blade.......................................211
Air conditioning system.....................213
Tire....................................................214
Fuse..................................................217
7
In case of a fault
7-1 In case of a fault..............................226
Emergency shutdown system...........226
Car fire rescue..................................227
Rescue in event of a vehicle impact
..........................................................227
Tire deflation .....................................229
Use the spare wheel .........................231
If the car needs to be towed..............238
8
Vehicle specifications
8-1 Data information..............................242
Vehicle parameters...........................242
8-2 Tips...................................................245
Vehicle identification number............245
Warning label....................................248
Microwave windoww .........................249

Picture Index
9
■Outside
Front hatch..............................................................................................................P208
Cooling system.......................................................................................................P209
Scrubber.................................................................................................................P210
Braking system.......................................................................................................P211
Front cabin fuse box .............................................................................................P217
Charging port cap.....................................................................................................P99
Traction holes.........................................................................................................P238
Combination lights....................................................................................................P71
Tires........................................................................................................................P214
Snow chains ...........................................................................................................P168
In case of a tire deflation ........................................................................................P229

10
Picture Index
Doors........................................................................................................................P57
Locking/unlocking operation.....................................................................................P57

Picture Index
11
Rear wiper ..............................................................................................................P166
Combination lights....................................................................................................P71
Electric rearview mirrors.........................................................................................P163
Lens adjustment .....................................................................................................P163
Back door..................................................................................................................P58
Carrying luggage ....................................................................................................P124
Attached tools.........................................................................................................P229
Replacement of the spare wheel............................................................................P233

12
Picture Index
■Dashboard
Multimedia display screen ......................................................................................P170
Combination instrument............................................................................................P42
Steering wheel..........................................................................................................P70
Steering wheel adjustment .......................................................................................P70
Steering wheel switch assembly...............................................................................P83
Cruise control (if fitted) ..........................................................................................P139
Lighting adjustment switch group .............................................................................P85
Headlight adjustment switch.....................................................................................P85
Mileage adjustment switch .......................................................................................P85
Central control storage box ....................................................................................P185
Front hatch opening handle....................................................................................P208

Picture Index
13
Mode switch group....................................................................................................P86
Economy mode button..............................................................................................P86
Sport mode button....................................................................................................P86
Snow mode button....................................................................................................P86
A/C panel buttons...................................................................................................P173
Volume knob/Audio OFF/Reboot multimedia button ..............................................P170
Right storage box....................................................................................................P184
Air vent....................................................................................................................P180
Central air outlet .....................................................................................................P180
Left/right air outlets.................................................................................................P180

14
Picture Index
■Inside
Indoor light/sunroof switch (if fitted) ...................................................................P98/95
Interior rearview mirror............................................................................................P165
Manual anti-glare interior rearview mirror (if fitted) ...............................................P165
Front left door switch assembly................................................................................P81
Central control door lock...........................................................................................P83
Power window switch................................................................................................P81
Exterior rearview mirror electric adjustment/folding switch.......................................P84
Emergency warning indicator switch ........................................................................P85
Charging cap opening switch .................................................................................P107
Front central armrest storage box ..........................................................................P185

Picture Index
15
Front seats................................................................................................................P66
Seat adjustment........................................................................................................P67
Passenger window control switch.............................................................................P84
Gear actuator..........................................................................................................P131
Sunvisor..................................................................................................................P187
Makeup mirror (if fitted) .........................................................................................P187
Wiper switch .......................................................................................................P77/79
Front and rear windshield wipers.........................................................................P77/79
Front windshield scrubber ...................................................................................P77/79
Rear windshield wiper and scrubber ...................................................................P78/80
Mobile phone tray...................................................................................................P184

16
Picture Index
Seat belt buckle........................................................................................................P20
Cup holder..............................................................................................................P184
Front row USB/charging port..................................................................................P188
Light switch..........................................................................................................P71/73
Turning on position light ......................................................................................P71/74
Turning on the low beam.....................................................................................P72/74
Turning on the overtaking lights ..........................................................................P72/74
Turning on the high beam....................................................................................P72/74
Turning on the turn signal....................................................................................P73/75

1
Precauciones de seguridad

Safety
1
1-1 Seatbelt ............................................. 18
Introduction to the seatbelt................. 18
Use of seatbelt.................................... 20
1-2 Airbag system................................... 23
Introduction to the airbag system ....... 23
Driver and front passenger airbags.... 24
Front passenger seat side airbag (if
fitted)................................................... 27
Side curtain airbag (if fitted) ............... 28
Airbag triggering conditions and notes29
1-3 Child restraint device........................ 35
Child restraint device.......................... 35
Installation of child restraint device .... 36
1-4 Anti-theft system ............................... 40
Anti-theft system................................. 40

18
1-1 Seatbelt
1-1 Seatbelt
Introduction to the seatbelt
Many studies have shown that the correct use of seatbelts can effectively reduce the
casualties of passengers in the car in case of emergency braking, sudden steering or
collision accident. Please carefully read and strictly observe the following contents.
Note
● Before driving, ensure that all the passengers in the car have correctly fastened the
seatbelts; otherwise, the passengers in the car are more susceptible to serious
physical injuries or even death in case of emergency braking or collision.
● The seatbelts in the car is mainly designed on base of the size of the adult and are
not suitable for children; please choose the appropriate child restraint device based
on the ages and sizes of the children.
● If a seatbelt is damaged or abnormal, it is recommended to contact BYD Auto
Authorized Service Station for confirmation and disposal immediately, do not use
the corresponding seat before confirmation.
■Based on the special statement from BYD, the driver and passengers in the car must
wear the seatbelts in any time; otherwise, it may increase the possibility of injuries or
serious injuries in case of an accident.
■The seatbelts provided for the car are designed especially for adults; please choose
the appropriate seatbelts based on the actual conditions.
■Any child must sit in the rear seats and wear the seatbelt for protection. Based on
accident statistics, a child who uses a child restraint device correctly in the rear seat is
safer than one seated in the front seat.
■Do not allow a child to stand or kneel in the rear seat. In case of an emergency braking
or collision, an unprotected child may be seriously injured or even death; likewise, do
not allow a child to sit on their laps, to avoid inadequate protection for the child in case
of an emergency braking or collision.
Seatbelt emergency locking (ELR) function
■In case of a sharp turn, emergency braking or collision, when the passenger body
leans forward quickly, the seatbelt will be locked automatically to achieve effective
restraint and protection for the passenger; when the car is driven smoothly, the
seatbelt will be pulled out slowly and steady with the passenger movement, to ensure
free movement of the passenger.
■If the seatbelt cannot be pulled out from the retractor, tighten and release the seatbelt
to smoothly pull it out from the retractor.

1
Safety
1-1 Seatbelt
19
Seatbelt automatic locking (ALR) function (if fitted)
The seatbelt automatic locking (ALR) function can be used to secure the child restraint
device. Pull out the seatbelt completely to activate the locking function. After the locking
function is activated, the seatbelt can only be retracted and cannot be pulled out, and a
continuous “Click” sound will be sent when the seatbelt is retracted. After the seatbelt is
completely retracted, the automatic locking function will be closed automatically, and the
seatbelt can be pulled out and retracted freely. If the seatbelt cannot be pulled out from the
retractor, simply pull out the seatbelt a little and release it to smoothly pull the seatbelt out
from the retractor.
Tip
●When the child restraint device is fixed with the seatbelt automatic locking (ALR)
function, please confirm that the automatic locking function is activated.
●Pull out the seatbelt completely to activate the automatic locking function; at the
time, the seatbelt can only be retracted and cannot be pulled out, and a continuous
“Click” sound will be sent when the seatbelt is retracted.
Seatbelt preload limiting function (if fitted)
In case of a serious frontal collision and when the triggering conditions of the preloading
device are met, a part of the seatbelt can be quickly retracted and locked with the
preloading device to enhance the protection for the passenger. The preload limiting device
can limit the restraining force of the seatbelt to the passenger body to a certain extent, to
avoid damage to the passenger due to excessive restraining force.

20
1-1 Seatbelt
Use of seatbelt
1. Adjust the seat to the proper position and adjust the backrest to the proper angle. (See
the seat adjustment method)
2. Adjust the three-point seatbelt
position.
■Pull the seatbelt out smoothly, so
that it can across the shoulder near
the seatbelt pulling-out position and
the chest; the seatbelt should not
cross under the arm or the back of
the neck.
■Keep your waist belt as low as
possible to your hip; do not buckle
the belt at the waist.
3. Insert the latch into the buckle until
a click is heard, and pull the latch in
the opposite direction to confirm
that the seatbelt is locked
successfully. Note that the seatbelt
cannot be twisted.
4. Adjust the seatbelt height adjuster
(front row) to the appropriate
position for optimum comfort and
protection.
Press the seatbelt height adjuster
to release the button.
Hold the height adjuster and move
it up and down to adjust the front
seatbelt to the appropriate height
and release the seatbelt height
adjuster.
5. After the adjustment is completed, pull the shoulder belt firmly to confirm that the
seatbelt height adjuster is locked.
Tighten the slack section
Too high
Keep it as low as possible to the hip