-i-
Foreword
In June 2005, Toyota released the Toyota Highlander gasoline-electric
hybrid vehicle in North America. Except where noted in this guide,
basic vehicle systems and features for the Highlander hybrid are the
same as those on the conventional, non-hybrid Highlander. To educate
and assist emergency responders in the safe handling of the Highlander
hybrid technology, Toyota published this Highlander hybrid
Emergency Response Guide.
High voltage electricity powers the electric motors, generator,
inverter/converter, and power steering. All other automotive electrical
devices such as the headlights, radio, and gauges are powered from a
separate 12-Volt battery. Numerous safeguards have been designed
into the Highlander hybrid 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 Highlander hybrid utilizes the following electrical systems:
• Maximum 650-Volts AC
• Nominal 288-Volts DC
• Nominal 42-Volts DC
• Nominal 12-Volts DC
Highlander hybrid features:
• Adoption of Hybrid Synergy Drive as the name for the Toyota
Gasoline - Electric Hybrid System.
• Hybrid Synergy Drive includes a boost converter in the inverter
assembly that boosts to 650-Volts the available voltage to the
electric motors.
• The high voltage hybrid vehicle battery pack rated at 288-Volts.
• A high voltage motor driven air conditioning compressor rated at
288-Volts.
• A high voltage Electric Power Steering (EPS) assist motor rated at
42-Volts.
• Body electrical system rated at 12-Volts negative chassis ground.
• Both two-wheel-drive (2WD) and four-wheel-drive intelligent
(4WD-i) configurations are available.
• 4WD-i models include an additional 650-Volt electric motor to
drive the rear wheels.
• Supplemental Restraint System (SRS) - dual stage frontal airbags,
front seat mounted side airbags, side curtain airbags, and front seat
belt pretensioners.
High voltage electrical safety is an important factor in the emergency
handling of the Highlander Hybrid Synergy Drive system. It is
important to recognize and understand the disabling procedures and
warnings throughout the guide.
Additional topics contained in the guide include:
• Toyota Highlander hybrid identification.
• Major Hybrid Synergy Drive component locations and descriptions.
• Extrication, fire, recovery, and additional emergency response
information.
• Roadside assistance information.
2006 Model Year Highlander Hybrid
By following the information in this guide, emergency responders
should be able to safely perform a rescue involving the Toyota
Highlander hybrid vehicle.
NOTE:
Emergency Response Guides for select Toyota alternative fuel vehicles
may be viewed at http://techinfo.toyota.com.
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