Acura RLX Sport Hybrid Emergency Response Guide

Acura RLX Sport Hybrid Emergency Response Guide
2014 Acura RLX Hybrid
Prepared for Fire Service, Law Enforcement, Emergency Medical, and Professional Towing Personnel by American
Honda Motor Co., Inc.
This guide has been prepared to assist emergency response professionals in identifying a
2014 Acura RLX Hybrid Electric Vehicle and safely respond to incidents involving this vehicle.
Copies of this guide and other Honda Emergency Response Guides are available for
reference or downloading at
For questions, please contact your local Acura dealer or Acura Client Relations at (800) 3822238.
Acura wishes to thank emergency response professionals for their concern and efforts in
protecting Acura customers and the general public.
Vehicle Description
Vehicle Type and Construction
Vehicle Overview
Vehicle Identification
Key Components
High Strength Steel
Power Drive Unit
12-Volt Battery
High-Voltage (HV) Battery Pack
Electric Motors/Generator
High-Voltage Cables
Potential Hazards
 Electric Shock
 Lithium-ion Battery Fumes or Fire
Emergency Procedures
Vehicle Collision
Submerged Vehicle
Best Method for HV Shutdown
Second-Best Method for HV Shutdown
Extricating Occupants
Emergency Towing and Repairs
Occupant Protection Equipment
 Emergency Towing
 Dealer Inspection and Repair
 High-voltage Battery Recycling
Vehicle Description
Vehicle Type and Construction
The RLX Hybrid is a four-door, five-passenger vehicle. Most of its structural components are
made of steel. Other parts are made of aluminum and plastic.
Vehicle Description
Vehicle Overview
The Acura RLX Hybrid is powered by a three-motor hybrid system, which consists of a 6-cylinder
3.5 liter gasoline engine that is teamed with a 35kilowatt (kW) electric motor/generator in the
front of the vehicle and two 27kW electric motors in the twin motor unit located between the
two rear wheels. A 1.3 kilowatt-hour (kWh) (260 volt) high-voltage (HV) lithium-ion (Li-Ion)
battery is mounted behind the rear seats and is charged under certain driving conditions.
Vehicle Description
Vehicle Identification
You can identify a Acura RLX Hybrid by the
exterior “Hybrid ” marks located on the
front fenders and by the blue letters “SH”
on the trunk lid. You can also identify an
RLX Hybrid by the orange cabling under the
Vehicle Description
Key Components
Fuel Lines
Twin Motor
Power Drive Unit
12V Battery
Fuse Box
Electric Motor/
Twin Motor
Vehicle Description
High Strength Steel
High strength steel is used in the colored areas.
270 MPa
340 MPa
440 MPa
590 MPa
780 MPa
980 MPa
1,500 MPa
Steel Tensile
Strength Legend
Vehicle Description
Power Drive Unit (PDU)
The PDU is located below the center console and houses the liquid cooled inverter and other
HV system components. There are no serviceable parts inside, so there is no reason for it to
be opened or disassembled.
Vehicle Description
12-Volt Battery
A conventional 12-volt battery is located
under the hood on the driver’s side of the
vehicle. This battery powers the airbags,
lights, audio system, and other standard 12volt system components. In an emergency
situation, it may be necessary to disconnect
or cut the 12-volt battery negative cable.
High-Voltage (HV) Battery Pack
A 1.3 kilowatt hour (kWh) high-voltage
lithium-ion battery pack is located in a well
protected area behind the rear seat. The
battery pack is made up of 72 3.6 volt cells,
totaling approximately 260 volts. The
Intelligent Power Unit (IPU) is housed with
the battery pack and consists of the Power
Control Unit (PCU), the HV battery ECU, the
battery contactors, a forced air cooling
system, and other battery system controls .
Vehicle Description
Electric Motors/Generator
The RLX Hybrid incorporates one electric motor/generator that is attached to the gasoline
engine and transmission and two electric motors located between the rear wheels in the twin
motor unit.
Vehicle Description
High-Voltage Cables
High-voltage flows through easy to identify heavy-duty orange cables. These cables are
purposely routed through areas away from the usual cut points.
Occupant Protection Equipment
The Acura RLX Hybrid is equipped with lap/shoulder
belts in all five seating positions. Front seat belts are
equipped with pyrotechnically activated tensioners that
help tighten the seat belt in a crash. Front, front side,
and side curtain airbags are also provided.
In a collision severe enough to deploy one or more of
the airbags, the RLX Hybrid electrical system is designed
to automatically open the high-voltage electrical
contactors. This disconnects the high-voltage battery
from the other high-voltage components and stops the
flow of electricity in the high-voltage cables.
Responders should always assume, however, that the
HV system is powered “on” and take the appropriate
action described later in this guide to power the system
It takes up to 3 minutes for the airbags and tensioners to
de-power after the 12-volt system has been turned off
by following the emergency shut-down procedures
provided later in this manual.
Potential Hazards
Electric Shock
Unprotected contact with any electrically charged or “hot”
high-voltage component can cause serious injury or death.
Receiving an electric shock from a RLX Hybrid, however, is
highly unlikely because of the following:
• Contact with the battery module or other highvoltage components only can occur if they are
damaged and the contents are exposed or if they
are accessed without following proper
• Contact with one of the electric motors only can
occur after one or more components are
• The high-voltage cables can be easily identified by
their distinctive orange color and contact with
them can be avoided.
If severe damage causes high-voltage components to
become exposed, responders should take appropriate
precautions and wear appropriate insulated personal
protective equipment.
Potential Hazards
Lithium-ion Battery Fumes or Fire
A damaged high-voltage lithium-ion battery can emit
toxic fumes and the organic solvent used as electrolyte
is flammable and corrosive, so responders should wear
appropriate personal protective equipment. Even after
a lithium-ion battery fire appears to have been
extinguished, a renewed or delayed fire can occur. The
battery manufacturer cautions responders that
extinguishing a lithium-ion battery fire will take a large
and sustained volume of water.
Responders should always ensure that a RLX Hybrid
with a damaged battery is kept outdoors and far away
from other flammable objects in order to minimize the
possibility of collateral fire damage should the battery
catch on fire.
Emergency Procedures
Vehicle Collision
In the event of a crash, the airbag control unit
makes a judgment based on input from the
impact sensors, and if the input values meet
various threshold requirements, the airbag
control unit sends a signal to the high-voltage
battery ECU. The battery ECU then turns off the
high-voltage battery contactors stopping the flow
of electrical current from the high-voltage
When responding to an incident involving a Acura
RLX Hybrid, we recommend that emergency
personnel follow their organization’s standard
operating procedures for assessing and dealing
with vehicle emergencies.
Given our knowledge of the RLX Hybrid,
we also recommend that responders follow the
procedures on the following pages to avoid
potentially lethal shock by high-voltage.
Emergency Procedures
Submerged Vehicle
If a RLX Hybrid is submerged or partly submerged in
water, first pull the vehicle out of the water. Then shut
down the high-voltage system using one of the two
procedures described on the following pages.
Absent severe damage to the vehicle, there is no risk of
electric shock from touching the car’s body or
framework — in or out of the water.
If the high-voltage battery was submerged, you may
hear noises from the battery as the cells are being
discharged from shorting.
Emergency Procedures
Preventing Current Flow Through High-Voltage Cables
Before attempting to rescue occupants or move a damaged RLX Hybrid, you should reduce
the potential for current to flow from the electric motor or the HV battery through the
high-voltage cables.
There are two recommended methods for preventing current flow. These are discussed on
the following pages.
Emergency Procedures
BEST METHOD for HV Shutdown
Push and hold the Start/Stop button for 3
This simple action turns off the gasoline engine and
immediately shuts down the high-voltage system
controllers, thereby preventing current flow into the
cables. It also cuts power to the airbags and the seat
belt tensioners, though these pyrotechnic devices have
up to a three minute deactivation time.
To prevent accidental restarting, you must either
remove the keyless remote from the vehicle and move
it at least 20 feet away or cut or disconnect the 12 volt
negative battery cable.
Push and hold the start/stop
button for 3 seconds
Emergency Procedures
Locate and cut the negative 12-volt battery
cable and the DC to DC Converter cable.
Together, cutting the negative 12-volt battery
cable and cutting the DC to DC Converter cable
turns off the gasoline engine and immediately
shuts down the high-voltage system controllers,
thereby preventing current flow into the highvoltage cables.
1. Locate the cut point labels shown. Cut the
negative battery cable first (1), then cut the DC to
DC Converter cable (2).
When cutting the DC to DC Converter Cable, do
not allow the cutting tool to contact any
surrounding metal parts; electrical arcing could
occur which can ignite any flammable vapors.
NOTE: If you cannot perform either method to stop
the engine and prevent current flow into the highvoltage cables, use extreme care and do not touch
damaged cables as they may be “hot.”
Cut the negative 12V battery cable and then
cut the DC to DC Converter cable.
Emergency Procedures
Extricating Occupants
If you need to cut the vehicle body, or use Jaws-of-Life equipment to remove occupants, be
sure to stay within the cut zone indicated in the illustration below.
Side-curtain airbag
Cut Zone
Emergency Towing & Repairs
Emergency Towing
The only approved method is to use a flat bed tow truck. Towing or rolling the vehicle with the
front and/or rear wheels on the ground can drive the electric motors and produce
electricity, thus resulting in a potential source of electric shock even when the high-voltage
system is turned off.
Dealer Inspection and Repair
A damaged RLX Hybrid should be taken directly to a Acura dealer for a thorough inspection and,
if appropriate, any necessary repairs.
High-Voltage Battery Recycling
The high-voltage lithium-ion battery requires special handling and disposal. Contact an
authorized Acura dealer or American Honda at (800) 555-3497 for instructions.
Copyright 2014, American Honda Motor Co., Inc.
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF