Chrysler Aspen and Dodge Durango Hybrid Vehicle Emergency Response Guide Version.02 3 About These Vehicles – Introduction – The Chrysler Aspen hybrid and Dodge Durango hybrid vehicles, …

Contents: About These Vehicles Introduction, Vehicle Identification Distinguishing Characteristics, Hybrid Identification Using the VIN, High Voltage Hybrid System Operation, High Voltage Hybrid Components, Safety Features, High Voltage System Safety, Warning Labels, High Voltage Battery, High Voltage Cables, Emergency Response Procedures Disabling the System, Stabilizing the Vehicle, High Voltage Battery Electrolyte, Situations Involving Fires, Submerged Vehicles, Extrication, No Towing Recommended.
High Voltage Hybrid System. – Operation – The Aspen and Durango hybrid models use an internal combustion engine, a high voltage battery pack, and a transmission with integrated electric motors to power and propel the vehicle. The Aspen and Durango hybrids are full hybrid vehicles, making them capable of electric-only propulsion. The Aspen and Durango hybrids are powered at low speeds and in reverse by the high voltage battery pack. The internal combustion engine powers the vehicle at normal driving speeds. The internal combustion engine and the high voltage battery pack will power the vehicle during hard acceleration. The internal combustion engine is also used to recharge the high voltage battery. When the vehicle is stopped, the internal combustion engine and the transmission with integrated electric motors may shut down, while the rest of the hybrid system remains operational. The high voltage hybrid system consists of the following components: • High voltage battery • High voltage cables (there are multiple sets of cables) • Traction power inverter module (TPIM)/accessory power module (APM) • Transmission with integrated electric motors • Electric air conditioning compressor (EAC) The high voltage battery is connected to the TPIM via high voltage cables that are orange in color. The TPIM also includes the high voltage-to-12-volt power converter (APM) and connects high voltage direct current (DC) to the EAC, and high voltage alternating current (AC) to the transmission, also via bright orange-colored high voltage cables. The EAC also has a high voltage connector that is orange colored. – Safety Features – In most accident situations an automatic shut-off of the high voltage system is triggered and the fl ow of energy from the high voltage system is disabled. During this process the TPIM stops the high voltage generation in the transmission with integrated electric motors, commands the high voltage battery to open the main contactors, and begins discharging the high voltage capacitor in order to de-energize the high voltage system completely within fi ve seconds after the vehicle comes to rest. If the accident does not trigger an automatic shut-off of the high voltage system, de-energizing the high voltage system could take up to…

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