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Hyundai NEXO User Manual

Hyundai NEXO
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NEXO
If severe damage causes high-voltage components to become exposed, emergency responders should take
appropriate precautions and wear appropriate insulated personal protective equipment.
Do not attempt to remove the safety plug while standing in the water.
Never cut or disconnect the high voltage orange cabling and connectors without first disabling the system by
removing the safety plug.
Exposed cables or wires may be visible inside or outside the vehicle. Never touch the wires, cables, connectors, or
any electric components before disabling the system, to prevent injury or death due to electrical shock.
Failure to follow any of these instructions may result in serious injury or death by electrocution.
Do not cut through any component of the Airbag (SRS) system (Supplementary Restraint System)
SRS components may remain powered and active for up to 3 minutes after the 12V electrical system is shut off or
disabled.
Disconnect the battery negative cable and wait for at least 3 minutes before beginning work.
Failure to follow any of these instructions may result in serious injury or death from accidental deployment of the
airbag system.
Emergency Response Guide
HYUNDAI ROADSIDE ASSIST
1800 186 306
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Hyundai NEXO Specifications

General IconGeneral
BrandHyundai
ModelNEXO
CategoryAutomobile
LanguageEnglish

Summary

Introduction

Document Purpose

Outlines the guide's objective to familiarize responders with the NEXO.

Vehicle Description

Explains the basic concept of a hydrogen electric vehicle and its power source.

High Voltage System Safety

Fuel Cell Stack Safety

Details safety measures for the fuel cell stack and its high voltage components.

High Voltage Battery System Safety

Describes the high voltage battery system and its safety features.

Hydrogen System Safety

Hydrogen Gas Characteristics

Explains the properties of gaseous hydrogen and its potential hazards.

Hydrogen Leak Detection System

Details the system for detecting hydrogen leaks and its operational response.

Hydrogen Vehicle Safety Precautions

Hydrogen System Precautions

Lists critical safety warnings and precautions related to the hydrogen system.

High Voltage System Precautions

Provides safety warnings and precautions for the vehicle's high voltage electrical system.

NEXO Vehicle Identification

General Vehicle Description

Provides a general overview of the NEXO's construction for identification purposes.

Identifying External Badges

Describes external badges used to identify the Hyundai NEXO model.

VIN Number Identification

Explains how to identify the vehicle using its Vehicle Identification Number (VIN).

Fuel Cell Module Compartment

Identifies the vehicle by the fuel cell power module compartment and its labeling.

Vehicle Underside Features

Highlights visible components on the vehicle's underside for identification.

Cluster Instrument Panel Indicators

Details specific dashboard indicators that identify the vehicle as a hydrogen electric model.

NEXO Main Systems

Key Specifications Overview

Presents a table of key technical specifications for the NEXO vehicle.

Vehicle Components Location Map

Illustrates the location of major vehicle components and provides a brief description of each.

Detailed Vehicle Components

Provides detailed descriptions of the 12V auxiliary battery, HV battery, and fuel cell system.

Motor Control, Drive Motor, Gear Reduction

Describes the motor control unit, electric drive motor, and gear reduction unit functions.

High-Voltage Cabling and Safety Plug

Details the high-voltage cabling and the safety plug for system isolation.

High Voltage Electrical Isolation and Regulation

Explains electrical isolation, current regulation, and the safety system.

Battery Management System (BMS)

Describes the function of the Battery Management System in protecting the HV system.

Airbag System (SRS)

Details the six airbags installed in the NEXO and their locations.

Seat Belt Pretensioners and Sensors

Explains seat belt pretensioners, impact sensors, and the SRS control module.

Emergency Procedures

Initial Response and Vehicle Identification

Outlines the first steps for emergency responders, including identification procedures.

Vehicle Immobilization Steps

Details the procedures for immobilizing the vehicle to ensure safety.

Disabling System - Smart Key Method

Explains how to disable the vehicle system using the smart key and power button.

Disabling System - IG Relay Method

Provides an alternate method for disabling the vehicle system by removing fuses/relays.

Extrication Operations and Stabilization

Covers extrication procedures and vehicle stabilization techniques.

Extrication Tools and Procedures

Lists necessary tools and considerations for extrication.

Submersion Incident Response

Provides guidance for responding to incidents involving submerged vehicles.

Vehicle Firefighting Procedures

Details procedures for fighting fires involving the NEXO, especially the battery.

Fire Extinguishers and Hydrogen Venting

Specifies extinguisher types and procedures for emergency hydrogen venting.

High Voltage Battery Damage and Leaks

Addresses how to handle damage and fluid leaks from the high voltage battery.

Roadside Assistance

Towing Procedures

Explains the recommended methods for towing the NEXO vehicle.

Jump Starting Guide

Provides step-by-step instructions for jump-starting the vehicle.

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