Lexus RX450h Manual
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Lexus RX450h Manual

Gasoline-electric lexus hybrid drive
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Gasoline-Electric
Lexus Hybrid Drive
GYL10/GYL15 Series

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Summary of Contents for Lexus RX450h

  • Page 1 Gasoline-Electric Lexus Hybrid Drive GYL10/GYL15 Series...
  • Page 2 Foreword This guide was developed to educate and assist dismantlers in the safe handling of Lexus RX450h gasoline-electric hybrid vehicles. RX450h dismantling procedures are similar to other non-hybrid Lexus vehicles with the exception of the high voltage electrical system. It is important to recognize and understand the high voltage electrical system features and specifications of the Lexus RX450h, as they may not be familiar to dismantlers.

  • Page 3: Table Of Contents

    Table of Contents About the RX450h .............................1 RX450h Identification ..........................2 Exterior .................................3 RX450h Identification (Continued)......................4 Interior................................4 Engine Compartment ............................5 Hybrid Component Locations & Descriptions..................6 Specifications ..............................7 Lexus Hybrid Drive Operation.........................8 Vehicle Operation............................8 Hybrid Vehicle (HV) Battery Pack and Auxiliary Battery..............9 HV Battery Pack............................9...

  • Page 5: About The Rx450H

    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 RX450h never needs to be recharged from an external electric power source.

  • Page 6: Rx450H Identification

    RX450h Identification In appearance, the 2010 model year RX 450h is nearly identical to the conventional, non-hybrid Lexus RX 350. The RX 450h is a 5-door SUV. 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.

  • Page 7: Exterior

    RX450h Identification (Continued) Exterior logo on the back door. Front bumper and grill that are unique to the hybrid model. logo on the rear door moldings. Exterior Driver Side View Exterior Front View Exterior Rear View Exterior Rear and Driver Side View...

  • Page 8: Rx450H Identification (Continued)

    RX450h 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, RX350. In place of a tachometer, a power meter showing kW output is used.

  • Page 9: Engine Compartment

    RX450h Identification (Continued) Engine Compartment 3.5-liter aluminum alloy gasoline engine. LEXUS HYBRID DRIVE logo on the plastic engine cover. Orange colored high voltage power cables. Engine Compartment View Power Cables...

  • Page 10: Hybrid Component Locations & Descriptions

    Hybrid Component Locations & Descriptions Component Location Description Cargo Area A lead-acid battery that supplies power to the low 12 Volt Auxiliary Battery voltage devices. Cabin Area, 288 Volt Nickel Metal Hydride (NiMH) battery pack Hybrid Vehicle Mounted to Cross consisting of 30 low voltage (9.6 Volt) modules (HV) Battery Pack Member under...

  • Page 11: Specifications

    Hybrid Component Locations & Descriptions (Continued) Specifications Gasoline Engine: 245 hp (183 kW), 3.5-liter Aluminum Alloy Engine Electric Motors Front: 165 hp (123 kW), Permanent Magnet Motor Rear: 67 hp (50 kW), Permanent Magnet Motor (AWD models only) Transmission: Automatic Only (electrically controlled continuously variable transaxle) HV Battery: 288 Volt Sealed NiMH Battery Curb Weight: 4,642 lbs/2,110 kg Fuel Tank: 17.2 gals/65.0 liters...

  • Page 12: Lexus Hybrid Drive Operation

    Vehicle Operation • With the RX450h, the gasoline engine may stop and start at any time while the READY indicator is on. • Never assume that the vehicle is shut off just because the engine is off. Always look for the READY indicator status.

  • Page 13: Hybrid Vehicle (Hv) Battery Pack And Auxiliary Battery

    Hybrid Vehicle (HV) Battery Pack and Auxiliary Battery The RX450h features a high voltage Hybrid Vehicle (HV) battery pack that contains sealed Nickel Metal Hydride (NiMH) battery modules. HV Battery Pack • The HV battery pack is enclosed in a metal case and is rigidly mounted to the cabin area floor pan cross member under the second row rear seat.

  • Page 14: Hv Battery Pack Recycling

    Auxiliary Battery • The RX450h also contains a lead-acid 12 Volt battery. This 12 Volt auxiliary battery powers the vehicle electrical system similar to a conventional vehicle. As with other conventional vehicles, the auxiliary battery is grounded to the metal chassis of the vehicle.

  • Page 15: High Voltage Safety

    High Voltage Safety The HV battery pack powers the high voltage electrical system with DC electricity. Positive and negative orange colored high voltage power cables are routed from the battery pack, under the vehicle floor pan, to the inverter/converter. The inverter/converter contains a circuit that boosts the HV battery voltage from 288 to 650 Volts DC.

  • Page 16: Service Plug Grip

    High Voltage Safety (Continued) Service Plug Grip • The high-voltage circuit is cut by removing the service plug grip (see page 15). High Voltage Safety System – Vehicle Shut Off (READY-OFF) High Voltage Safety System – Vehicle On and Operational (READY-ON)

  • Page 17: Precaution To Be Observed When Dismantling The Vehicle

    Precaution to be observed when dismantling the vehicle WARNING: ・ The high voltage system may remain powered for up to 10 minutes after the vehicle is shut off or disabled. To prevent serious injury or death from severe burns or electric shock, avoid touching, cutting, or opening any orange high voltage power cable or high voltage component.

  • Page 18: Spills

    Spills The RX450h contains the same common automotive fluids used in other non-hybrid Lexus vehicles, with the exception of the NiMH electrolyte used in the HV battery pack. The NiMH battery electrolyte is a caustic alkaline (pH 13.5) that is damaging to human tissues. The electrolyte, however, is absorbed in the cell plates and will not normally spill or leak out even if a battery module is cracked.

  • Page 19: Dismantling The Vehicle

    Dismantling the vehicle The following 2 pages contain general instructions for use when working on an RX450h. Read these instructions before proceeding to the HV battery removal instructions on page 18. WARNING: ・ The high voltage system may remain powered for up to 10 minutes after the vehicle is shut off or disabled.
  • Page 20 Instead, wash the eye(s) with a dilute boric acid solution or a large amount of water and seek medical care. 10. With the exception of the HV battery, remove parts by following procedures which are similar to conventional Lexus vehicles. For the removal of the HV battery, refer to the following pages.

  • Page 22: Removal Of Hv Battery

    Removal of HV battery WARNING: ・ Be sure to wear insulated gloves when handling high-voltage parts. ・ Even if the vehicle is shut off and the relays are off, be sure to remove the service plug grip before performing any further work.
  • Page 23 3. Remove the service plug grip. HV Battery Disengage the 2 clips and 2 guides, and remove the battery service hole cover. (2) Slide the handle of the service plug grip to the left. Service Plug Grip Caution: Wear insulated gloves for the following 3 steps. (3) Raise the release handle of the service plug grip as shown in the illustration below.
  • Page 24 (2) Remove the 4 bolts on the front side of the seat. (3) Remove the 8 clips and seatback board carpet LH. (4) Remove the bolt and disconnect the fold seat stopper band assembly. (5) Cut the seat lock cable assembly (with remote folding function).
  • Page 25 (6) Disconnect the 2 rear seat side airbag connectors. (7) Remove the 3 bolts on the rear side of the seat. (8) Remove the seat assembly LH and RH. Caution: Do not cut wiring or wire harnesses when removing vehicle components. Always disconnect components at the connector.
  • Page 26 Remove the rear door scuff plate LH and RH. 9. Remove the rear seat side cover LH and RH. 10. Remove the air intake covers. Remove the 6 hole covers.
  • Page 27 Remove the 6 screws, then release the 3 claws and remove the 3 air intake covers. 11. Remove the 3 clips and turn back the front floor carpet assembly. 12. Remove the 6 bolts and 3 battery carrier ducts.
  • Page 28 13. Disconnect the 4 wire harness connectors. 14. Disconnect the 4 wire harness connectors. 15. Remove the battery service hole cover. Using the service plug grip, remove the battery cover lock striker. Hint: Insert the projecting part of the service plug grip and turn the button of the battery cover lock striker counterclockwise to release the lock.
  • Page 29 17. Remove battery carrier bracket. Remove the 2 bolts and battery carrier bracket. 18. Remove the battery room ventilation hose. 19. Disconnect the harness clamps.
  • Page 30 20. Remove the 13 bolts. 21. Attach loop clutches or similar devices to the holes of the HV battery to connect the steel cables as shown in the illustration (load capacity: more than 70 kg). Loop clutche or shackle Loop clutche or shackle...
  • Page 31 Stopper 24. The HV battery pack is recyclable. Contact your Lexus distributor (if included on the HV battery caution label) or contact the nearest Lexus dealer (see the next 2 pages for samples of the HV battery caution label). Caution: After removing the HV battery, do not reinstall the service plug grip to the HV battery.

  • Page 32: Hv Battery Caution Label

    HV Battery Caution Label For U.S.A. For CANADA For Europe For China...

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2014 rx 450h

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