Lexus LS 600 2008 User Manual
Hybrid
2008 Model
© 2007 Toyota Motor Corporation
All rights reserved. This document may not be
altered without the written permission of Toyota Motor Corporation.
08LS 600h L ERG REV – (01/10/08)
Foreword
In May 2007, Lexus released the Lexus LS 600h L gasoline-electric
hybrid vehicle in North America. Except where noted in this guide,
basic vehicle systems and features for the LS 600h L are the same as
those on the conventional, non-hybrid, Lexus LS 460 L. To educate
and assist emergency responders in the safe handling of the LS 600h L
hybrid technology, Lexus published this LS 600h L Emergency
Response Guide.
High voltage electricity powers the electric motor, generator, A/C
compressor, and power control unit (inverter/converter). Other
automotive electrical devices such as the horn, radio, and gauges are
powered from a separate 12 Volt auxiliary battery. Numerous
safeguards have been designed into the LS 600h L to help ensure the
high voltage, approximately 288 Volt, Nickel Metal Hydride (NiMH)
Hybrid Vehicle (HV) battery pack is kept safe and secure in an accident.
The LS 600h L utilizes the following electrical systems:
• Maximum 650 Volts AC
• Nominal 288 Volts DC
• Maximum 46 Volts AC / DC
• Nominal 12 Volts DC
LS 600h L Features:
• A mechanical all-wheel drive hybrid powertrain.
• A boost converter in the power control unit that boosts to 650 Volts
the available voltage to the electric motor.
• A high voltage Hybrid Vehicle (HV) battery pack rated at 288 Volts.
• A high voltage motor driven Air Conditioning (A/C) compressor
rated at 288 Volts.
• An Electric Power Steering (EPS) assist motor rated at 46 Volts.
• Active stabilizer suspension system motors rated at 46 Volts.
• A body electrical system rated at 12 Volts, negative chassis ground.
• Supplemental Restraint System (SRS) - dual stage frontal airbags,
front knee airbags, front seat and optional rear seat side airbags,
side curtain airbags, front and rear seat belt pretensioners, and when
equipped with an optional rear seat Ottoman, a passenger side rear
seat cushion airbag.
High voltage electrical safety is an important factor in the emergency
handling of the LS 600h L Lexus Hybrid Drive. It is important to
recognize and understand the disabling procedures and warnings
throughout the guide.
Additional topics in the guide include:
• Lexus LS 600h L identification.
•
Major Lexus Hybrid Drive component locations and descriptions.
•
Extrication, fire, recovery, and additional emergency response
information.
•
Roadside assistance information.
2008 Model Year LS 600h L
This guide is intended to assist emergency responders in the safe
handling of a Lexus LS 600h L hybrid vehicle during an incident.
NOTE:
Emergency Response Guides for Lexus hybrid vehicles may be viewed at
http://techinfo.lexus.com.
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Table of Contents Page
About the LS 600h L 1
LS 600h L Identification 2
Lexus Hybrid Drive Component Locations & Descriptions 5
Smart Access System & Push Button Start 8
Lexus Hybrid Drive Operation 10
Hybrid Vehicle (HV) Battery Pack 11
46 Volt System 12
Low Voltage Battery 13
High Voltage Safety 14
SRS Airbags & Seat Belt Pretensioners 15
Emergency Response 17
Extrication 17
Fire 24
Overhaul 25
Recovering/Recycling of NiMH HV Battery Pack 25
Spills 26
First Aid 26
Submersion 27
Roadside Assistance 28
-ii-
About the LS 600h L
The LS 600h L sedan joins the RX 400h and GS 450h as a hybrid
model for Lexus. Lexus Hybrid Drive means that the vehicle contains
a gasoline engine and an electric motor for power. The two hybrid
power sources are stored on board the vehicle:
1. Gasoline stored in the fuel tank for the gasoline engine.
2. Electricity stored in a high voltage Hybrid Vehicle (HV) battery pack
for the electric motor.
The result of combining these two power sources is improved fuel
economy and reduced emissions. The gasoline engine also powers an
electric generator to recharge the battery pack; unlike a pure all electric
vehicle, the LS 600h L never needs to be recharged from an external
electric power source.
Depending on the driving conditions one or both sources are used to
power the vehicle. The following illustration demonstrates how the LS
600h L operates in various driving modes.
During light acceleration at low speeds, the vehicle is powered by
the electric motor. The gasoline engine is shut off.
During normal driving, the vehicle is powered mainly by the
gasoline engine. The gasoline engine also powers the generator to
recharge the battery pack.
During full acceleration, such as climbing a hill, both the gasoline
engine and the electric motor power the vehicle.
During deceleration, such as when braking, the vehicle regenerates
the kinetic energy from the wheels to produce electricity that
recharges the battery pack.
While the vehicle is stopped, the gasoline engine and electric motor
are off, however the vehicle remains on and operational.
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LS 600h L Identification
In appearance, the 2008 model year LS 600h L is nearly identical to the
conventional, non-hybrid Lexus LS 460 L. The LS 600h L is a 4-door
sedan and the suffix “L” indicates a long wheelbase. Exterior, interior,
and engine compartment illustrations are provided to assist in
identification.
The alphanumeric 17 character Vehicle Identification Number (VIN) is
provided in the front windshield cowl, driver door pillar, and engine
compartment.
Example VIN:JTHDU46F840020208
An LS 600h L is identified by the first 6 alphanumeric characters
JTHDU4.
Exterior
logos on the rear trunk.
logos on the rear door moldings.
Gasoline fuel filler door located on the driver side rear quarter panel.
Exterior Driver Side View
Driver Side Windshield Engine Compartment Cowl
Exterior Front View Exterior Rear View
Base of Driver Side B Pillar
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Exterior Rear and Driver Side View
LS 600h L Identification (Continued)
Interior
The instrument cluster (speedometer, fuel gauge, warning lights) located
in the dash behind the steering wheel, is different than the one on the
conventional, non-hybrid LS 460 L.
The hybrid system indicator (power meter) is located next to the
tachometer.
NOTE:
If the vehicle is shut off, the instrument cluster gauges will be “blacked
out”, not illuminated.
Interior View
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Instrument Cluster View
LS 600h L Identification (Continued)
Engine Compartment
5.0-liter aluminum alloy gasoline engine.
Logo on the plastic engine cover.
Logo on Cover
Engine Compartment View
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Lexus Hybrid Drive Component Locations &
Descriptions
Component Location Description
12 Volt
Auxiliary
Battery
Hybrid
Vehicle (HV)
Battery Pack
Power
Cables
Power
Control Unit
Gasoline
Engine
Electric
Generator
Electric
Motor
Trunk Driver Side A lead-acid battery that supplies power to
the low voltage devices.
Trunk Area,
Mounted to Cross
Member and
behind Rear Seat
Undercarriage
and Engine
Compartment
Engine
Compartment
Engine
Compartment
Transmission 3-phase high voltage AC generator that is
Transmission 3-phase high voltage AC permanent magnet
288 Volt Nickel Metal Hydride (NiMH)
battery pack consisting of 20 low voltage
(14.4 Volt) modules connected in series.
Orange colored power cables carry high
voltage Direct Current (DC) between the
HV battery pack, power control unit, and
A/C compressor. These cables also carry 3phase Alternating Current (AC) between the
power control unit, electric motor, and
generator.
Boosts and inverts the high voltage
electricity from the HV battery pack to 3phase AC electricity that drives the electric
motor. The power control unit also
converts AC electricity from the electric
generator and electric motor (regenerative
braking) to DC that recharges the HV
battery pack.
Provides two functions:
1) Powers vehicle.
2) Powers generator to recharge the HV
battery pack.
The engine is started and stopped under
control of the vehicle computer.
contained in the transmission and recharges
the HV battery pack.
electric motor contained in the transmission
and drives the four wheels through the
transfer case and propeller shafts.
Lexus Hybrid Drive Components
Components (Top View) and High Voltage Power Cables
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Lexus Hybrid Drive Component Locations &
Descriptions (Continued)
Component Location Description
A/C
Compressor
(with
Inverter)
DC-DC
Converter
for 12 Volt
Auxiliary
Battery
DC-DC
Converter
for EPS and
Active
Stabilizer
Suspension
System
Fuel Tank and
Fuel Lines
Engine
Compartment
Inside HV Battery
Pack in Trunk
On HV Battery
Pack
Undercarriage,
Driver Side and
Center
3-phase high voltage AC electrically driven
motor compressor.
Converts 288 Volts from the HV battery
pack to 12 Volts for low voltage vehicle
power.
Converts 288 Volts from the HV battery
pack to 46 Volts for EPS and active
stabilizer suspension system power. Dull
yellow colored sheathing identifies 46 Volt
wires that are routed under the vehicle body
to power the EPS and the active stabilizer
suspension system.
The fuel tank provides gasoline via fuel
lines to the engine. The source fuel lines
are routed under the vehicle along the
center tunnel and the return line is routed
along the driver side under the floor pan.
Fuel Tank and Fuel Lines
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Lexus Hybrid Drive Component Locations &
Descriptions (Continued)
Key Specifications:
Gasoline Engine: 390 hp (290 kW), 5.0-liter Aluminum Alloy Engine
Electric Motor: 221 hp (165 kW), Permanent Magnet Motor
Transmission: Automatic Only (electrically controlled
continuously
variable transmission)
HV Battery: 288 Volt Sealed NiMH
Curb Weight: 5,049 lbs / 2,290 kg
Fuel Tank: 22.1 gals / 84 liters
Fuel Economy
Ratings: 20/22 (City/Hwy) miles/gal
11.3/8.0 (City/Hwy) liters/100 km
Frame Material: Steel Unibody
Body Material: Steel Panels except for Aluminum Hood
Battery
Aluminum
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Steel Unibody
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