TATA Motors Nexon EV 2003, Owner'S Manual, Page: 12 / 308

Safety Of The High-voltage System
• Do not perform any modifications or
work on the vehicle, especially mainte-
nance and repair work on the high-volt-
age system and the body and avoid
retrofitting accessories.
• If work is not carried out properly, there
is the risk of fire and fatal injury from
electrocution due to the high-voltage
system.
• TATA MOTORS recommends to
have modifications and work on the
vehicle only to be carried out by an
authorized TATA MOTORS
authorized EV service center or one
that operates according to TATA
MOTORS’ specifications with
personnel trained accordingly.
• Your vehicle’s high-voltage system is a
self-contained system. Safety is en-
sured as long as no unauthorized work
is performed on high voltage electrical
components or on the chassis.
High-voltage System: Contact With
Water
The high-voltage system is typically safe
even in the following example situations:
Water in the foot well, for instance after •
a rainstorm when sunroof was kept
open.
Vehicle is in water but only up to 300
•
mm.
Liquid escapes in the trunk.
•
In these cases there is no risk of injury
from electrocution. Other damage to the
vehicle is possible.
Common Terminologies And Abbre-
viations
EV – Electric Vehicle
HV battery – High Voltage battery
LV battery – Low Voltage (12V) battery
AC – Alternating Current
DC – Direct Current
OBC – On Board Charger
PDU – Power Distribution Unit
VCU – Vehicle Control Unit
BMS - Battery Management System
OBD - On Board Diagnostics
SoC – State of Charge
SRS – Supplementary Restraint System
CRS - Child Restraint System
DAB – Driver Airbag
PAB – Passenger Airbag
ABS - Anti-lock Braking System
EBD - Electronic Brake Force Distribution
ESC - Electronic Stability Control
PEPS - Passive Entry/Passive Start
INTRODUCTION TO EV
3