RX 400h Hybrid Overview
Contents
1. EPAMileage Estimates Why you may not achieve the EPA estimates Ten Tips for Improving Fuel Economy Multi information Display amp Monitors 8 16 Multi information display Energy Monitor Screen Consumption Monitor Power Gauge and Hybrid Battery Status RX400h Hybrid Technology 17 20 How the system works the systems components and what they do Frequently Asked Questions 21 22 A wide range of questions often asked about the RX 400h and hybrid technology RX 400h Hybrid Specifications 23 Specitications pertaining to the hybrid system Glossary of Hybrid Technology Terms 24 26 Detinitions of commonly used hybrid technology terms Index 27 RX 400h Driving the RX 40Qh On the whole driving the RX 400h is not very much different from driving a conventional vehicle However there are some subtle differences you will notice Turning the ignition key starts the vehicle but may not start the engine Like starting a regular vehicle turn the ignition key to the START position and release to start the vehicle Unlike a regular vehicle after a few seconds the READY light in the Power Gauge will come on Once the READY light comes on place the transmission gear lever into the desired gear and start driving The RX 400h can drive up to 15 to 20 miles per hour on electric power alone so the gasoline engine may not start for a while depending upon the need You won t feel the transmission change gear2. Inverter The inverter converts the hybrid battery s high voltage DC current into AC current for the electric motors and vice versa depending on driving demands and the needs of the electrical system The inverter can also boost the battery s power up to 650 volts as needed for maximum power kW Kilowatts A unit of electrical power equal to 1000 watts or 1 34 horsepower Motor Generator In a hybrid vehicle the word motor refers to an electric motor which works with the vehicle s engine to efficiently drive the vehicle The RX 400h uses permanent magnet AC motors a cae eae MG1 a front motor generator MG2 and a rear motor generator MGR Vehicles with optional All Wheel Drive only continued on next page mye RID OVER Y e Ww RX 400h 25 Glossary of Hybrid Technology Terms Glossary of Hybrid Technology Terms Continued Planetary gear set The component of the ECVT that delivers the efficient mix of engine and hybrid power to the front wheels The operation of the planetary gear set provides seamless acceleration without shift points Regenerative Braking Regenerative braking is a feature that allows an electric motor to act as a generator when braking It converts the kinetic energy of the car s motion into electrical energy Whenever the RX 400h is braking or slowing ie Ie energy made during regenerative braking is used to recharge the hybrid battery and is measured in Watt Hours Wh on
3. s x Electrical r REAR ELEC MOTOR regenerative L FR ELEC MOTOR power Consumption Consumption SEa MPG Press to go to the Current fuel economy Consumption Monitor in miles per gallon MPG e FRONT ELEC MOTOR represents Electric Motor Generator MG1 and Front Electric Motor Generator MG2 together e REAR ELEC MOTOR represents Rear Electric Motor Generator MGR gt BATTERY represents the hybrid battery Vehicles with optional All Wheel Drive only continued on next page HYBRID OVERVIEW RX 400h Multi intormation Displays amp Monitors Typical Energy Monitor Screens Vehicles with optional Navigation Systems only Energy Monitor Ursus oF ENGINE ee a BATTERY G REAR ELEC MOTOR wis FR LEC MOTOR Consumption Gurrent MPG The vehicle is stopped the engine is off and the hybrid battery is not being charged e No arrows are displayed Energy Monitor Jys oF ENGINE Ay rs BATTERY G Sz FR LEC MOTOR Consumption Gurrent MPG REAR ELEC MOTOR The vehicle is being driven by the front electric motor e The arrows point away from the hybrid battery to the front electric motor and then to the front wheels Vehicles with optional All Wheel Drive only continued on next page HYBRID OVERVIEW RX 400h 10 Multi intormation Displays amp Monitors Typical Energy Monitor Screens continued Vehicles with optional Navigation Systems only K Energy Moni
4. turn into generators which create electricity to help charge the hybrid battery As they create electricity they create drag which helps slow the vehicle The conventional brake system and the regenerative brake system work in conjunction with each other Q Electronically controlled Continuously Variable Transmission ECVT Delivers smooth acceleration without conventional gear shifting while enhancing efficiency It has fewer parts than a conventional automatic transmission MG1 and MG2 are part of the ECVT During sustained highway cruising the ECVT helps maximize fuel economy for the engine 10 12 volt Battery Enables the Hybrid Electronic Control System to start the hybrid system vehicle READY mode and operates the basic electrical system This battery is charged by the inverter Vehicles with optional All Wheel Drive only HYBRID OVERVIEW RX 400h 19 RX 40QOh Hybrid Technology How Lexus Hybrid Synergy Drive HSD works Lexus Hybrid Synergy Drive HSD incorporates gas engine power with electric motor efficiency in a seamless manner Typically the system works as follows Starting from a stop The front electric motor generator MG2 and the rear electric motor generator MGR both drive the vehicle The engine is not required to start moving the vehicle but may come on to charge the hybrid battery or make heat available tor the climate control and emissions systems Normal acceleration MG2 and th
5. Cale RX 400h Hybrid Overview Cale a RX 400h Hybrid System Quick Facts e The Lexus RX 400h is powered by a Hybrid Synergy Drive HSD system that combines the advantages of electric motor generator and a gasoline engine e The 400 in RX 400h stands for the power output of the engine and hybrid battery which when combined approximate the power of a 4 0 liter V8 engine e The Lexus RX 400h does not need to be plugged in like an electric car The HSD system automatically charges itself e The Lexus RX 400h hybrid system provides the high level of performance associated with Lexus along with improved gas mileage and reduced emissions e The Lexus RX 400h offers the high level of quality and luxury features that is expected from a Lexus vehicle We invite you to discover more about the revolutionary Lexus RX 400h and Lexus Hybrid System in the pages of this booklet For further details contact your dealership see the vehicle Owner s Manual and other owner information materials in the vehicle or log onto www lexus com Care RX 400h Hybrid Overview Whats Inside PAGES Driving the RX400h 1 2 Starting driving parking attendant instructions long term parking running out of fuel and battery tacts Hybrid Luxury Driving Performance 3 4 RX 400h Performance The RX 400h versus the Competition What you can expect from the RX 400h EPA Milieage Estimates amp Fuel Economy 5 7 Quck Facts
6. a result the engine and the motors operate at their most efficient points regardless of the vehicle s speed The ECVT in the RX 400h provides seamless acceleration without the shift points felt with conventional transmissions The front electric motor generators and the planetary gear set are part of the ECVT which has fewer parts than a conventional automatic transmission Engine In a hybrid vehicle the word engine refers to the gasoline engine not an electric motor The gasoline powered 3 3L V 6 is the primary power source for the RX 40Oh continued on next page HYBRID OVERVIEW RX 400h 24 Glossary of Hybrid Technology Terms Glossary of Hybrid Technology Terms Continued Hybrid Battery Composed of sealed Nickel Metal Hydride NiMH modules the 288 volt hybrid battery provides electric motor power during start up acceleration ew uphill driving and reverse It also stores energy Rees ries regenerative braking The hybrid battery is covered for 8 years 100 000 miles which ever occurs first In normal use we expect the battery to last longer than the length of this warranty Hybrid Synergy Drive Lexus hybrid technology that combines an advanced gasoline engine electric motor generators a hybrid battery an Electronically controlled Continuously La Variable Transmission ECVT and advanced electronic E to E powerful seamless acceleration outstanding fuel economy and reduced emissions
7. about 30 days charging of the 12 volt battery may be required See your dealership for details To keep the hybrid battery in good condition drive the vehicle at least once every several months for at least 30 minutes or ten miles If the hybrid battery becomes fully discharged and the vehicle will not start even with a jump start to the 12 volt battery contact your Lexus dealership HYBRID OVERVIEW RX 400h RX 400h Hybrid Luxury Driving Pertormance While hybrid vehicles have become known for exceptional fuel economy for the RX 400h Lexus engineers had the goal of creating a new type of hybrid that delivered the highest levels of luxury driving performance The result was the first hybrid that delivers the acceleration of a powertul gasoline V8 engine In fact the 400 in RX 400h stands for the power output of the 3 3 L engine and hybrid battery which when combined approximate the power of a 4 0 liter V8 engine The RX 400h versus the competition The RX 400h can deliver smooth V8 like acceleration in performance driving conditions or it can deliver economy in economy driving conditions while complying with very clean Super Ultra Low Emission Vehicle SULEV tailpipe emissions standards You can choose performance driving by simply pressing on the accelerator Choosing to maximize economy driving with the RX 400h or other vehicles involves many factors Please see Ten tips for improving fuel economy on page 7 of
8. attendant key ring tabs with these tips in English and Spanish When refueling the fuel door may take a few moments to open As part of emissions system operation it may take up to 15 seconds for the fuel door to automatically release after the release button is pressed The Multi information Display in the instrument cluster will display Retuel Ready when the door releases Running out of fuel Do not run your RX 400h out of fuel The RX 400Oh is not designed to be operated with the fuel tank empty If you try to start the RX 40Oh with the fuel tank empty the hybrid system will become disabled on the third attempt If you continue to drive with the fuel tank empty the hybrid battery will rapidly discharge and the hybrid system will shut down If you run out of fuel immediately pull over to a safe location and turn off the vehicle Be sure to add fuel before attempting to restart the vehicle or continuing to drive Hybrid Battery cooling vents Do not block the hybrid battery cooling vents located under the rear seats with cargo or other items Doing Fig so could cause overheating of the hybrid battery Long term parking If the vehicle has been parked for two weeks or longer do not operate the power rear door until you have turned the key to START and the READY light stays on If the vehicle has been parked for a long time the 12 volt and the hybrid battery will discharge gradually For parking longer than
9. this booklet for details Comparing the ratings of the RX 400h with V8 powered luxury SUVs highlights the versatile capabilities of the Lexus hybrid system 0 60 EPA MPG Emissions Vehicle Make Model Acceleration City Highway Class 2006 Lexus RX 400h AWD 69 sec 31 27 SULEV 2005 Porsche Cayenne S 4 5L V 8 Lasep a 14 18 SULEV 2004 BMW X5 4 4i 4 4L V 8 AWD 71 sec 0 16 22 ULEV 2005 Cadillac SRX 4 6L V 8 AWD 67 sec 7A 15 20 ULEV 2005 Range Rover HSE 4 4L V 8 4WD 8 2 sec 12 16 ULEV 1 Source Car and Driver Magazine m yr 4 Manufacturer s estimate Source EPA Fuel Economy Guide SULEV Super Ultra Low Emission Vehicle Source California Air Resources Board ULEV Ultra Low Emission Vehicle HYBRID OVERVIEW RX 400h Hybrid Luxury Driving Pertormance What you can expect from your RX 4000h e The acceleration performance of a 4 0L V8 O 60 mph acceleration in 7 5 seconds Front wheel drive Source Manufacturer s estimate O 60 mph acceleration in 69 seconds All wheel drive Source Car and Driver magazine March 2005 e Better mileage ratings than most V8 powered SUVs The mileage estimate ratings for the RX 400h are higher than the typical V8 powered SUV e Significantly lower emissions than most V8 powered SUVs The RX 400h is classified as a Super Ultra Low Emissions Vehicle SULEV e Excellent performance at high altitudes and in mountain driving Traditional gasoline powered vehicl
10. 0h may best meet your needs Q What changes to the interior of the RX 330 were required to accommodate the hybrid system of the RX 400h A The rear seat is raised slightly about one inch and the tool storage compartment is shallower to make room for hybrid system components The rear cargo area is the same size Q Will the RX 400h qualify for a tax credit A Check with your tax preparer consultant regarding any hybrid tax credit Q What is the warranty on the RX 400h What is the warranty on the hybrid battery A In addition to the Basic Warranty of 48 month 50 000 miles and the powertrain and restraint system coverage of 7 2 months 0 000 miles there is a hybrid warranty The Hybrid Vehicle System Warranty is 96 months 8 years 100 000 miles from the vehicle s in service date whichever occurs first It is applicable to certain components of the hybrid electronic control system and the hybrid battery See the Owner s Manual and other owner intormation materials in the vehicle tor details continued on next page HYBRID OVERVIEW RX 400h 21 Frequently Asked Questions Frequently Asked Questions Continued Q Does the RX 400h qualify for the single occupant vehicle in the high occupancy vehicle HOV lane A Pending federal government approval it may qualify in certain states We do not expect it to qualify in California due to state HOV law Check with your state department of motor vehicles for more information Q D
11. All wheel drive AWD ECVT Electronically controlled Continuously Variable Transmission Four wheel electronic power assisted discs with four sensor four channel Anti lock Braking system ABS Brake Assist and integrated regenerative brake system 1 These performance capacity figures are for comparison only and were obtained with prototype vehicles by professional drivers using special safety equipment and procedures These should not be attempted on public streets or highways EPA estimated ratings Actual mileage may vary 3 R Source Manufacturer s estimate Source Car amp Driver Magazine 3 05 HYBRID OVERVIEW Vehicles with optional All Wheel Drive only The RX 400h is not designed to be driven off road RX400h 23 RX 400h Glossary of Hybrid Technology lerms 12 volt Battery The low voltage battery that provides electrical power to accessories and the vehicles computer similar to the battery of a conventional vehicle AC Electrical current that reverses its flow in a circuit at regular intervals The RX 400h s electric motors operate on AC current DC Electrical current that flows continuously in one direction The RX 400h s hybrid battery and 12 volt battery provide DC current Electronically controlled Continuously Variable Transmission ECVT A type of transmission with an infinite number of gear ratios that change depending on vehicle speed and engine rpm As
12. FO button 9 14 Inverter 19 25 Long term parking 2 RX 400h Maintenance 6 22 MG1 9 18 20 25 MG2 9 18 20 25 MGR 9 18 20 25 MPG Miles Per Gallon 3 6 9 14 15 23 Multi information display 8 Owner s Manual 21 22 Parking 2 Parking attendants 2 Performance 3 4 7 23 Planetary gear set 24 26 Power gauge 1 16 READY Light 1 2 19 Rear electric motor generator MGR 9 11 12 18 20 23 25 Refueling 2 Regenerative braking 8 12 15 16 18 Running out of fuel 2 Safety standards 22 Specitications 23 Starting 1 18 20 SULEV Super Ultra Low Emissions Vehicle 3 4 23 Tax credit 21 Transmission 1 19 23 25 TRIP INFO button 9 14 Valvetrain 23 VVT i Variable Valve Timing with intelligence 23 Warranty 21 25 Watt hours Wh 15 26 1 Vehicles with optional Navigation Systems only Vehicles with optional All wheel drive only Specifications features equipment technical data performance figures options and color and trim are based upon information available at time of printing are subject to change without notice are for mainland USA vehicles and may differ in Hawaii Puerto Rico the US Virgin Islands and in other regions Some vehicles may be shown with optional equipment Optional equipment listed may not be available separately or in all regions Technical photos and illustrations are from Lexus Technical Tra
13. ars shift to the left every 5 minutes so the bar between O and 5 min is the most recent 5 minute period This intormation will clear when you turn off the vehicle The small boxes with E in the center represent the amount of electricity that has been regenerated in 50 Wh Watt hour units A partial box means less than D0Wh Each column represents a 5 minute period The columns shift to the left every 5 minutes so the column between O and 5 is the most recent 5 minute period The more boxes there are the more regenerative energy is produced and stored in the hybrid battery This information will clear when you turn off the vehicle continued on next page HYBRID OVERVIEW RX 400h 15 Multi intormation Displays amp Monitors The Power Gauge BONAN ai 200 G KW The Power Gauge indicates the approximate power in kilowatts the hybrid system delivers or receives The needle will move up towards 200kW during acceleration and downward into the blue area when the hybrid system is regenerating power during coasting and braking conditions HYBRID OVERVIEW RX 400h 16 RX 400h RX 400h Hybrid Technology Hybrid Synergy Drive HSD basics A hybrid vehicle is a vehicle that combines power from different sources to efficiently operate Lexus has spent many years and logged millions of test miles developing and testing the hybrid technology found in the RX 400Oh The Hybrid Synergy Drive HSD system that po
14. ay from the hybrid battery and the engine and then to the wheel The vehicle is coasting or slowing down regenerating electricity and charging the hybrid battery e The arrow points away from the wheel and then to the hybrid battery The vehicle is stopped and the hybrid battery is not being charged e No arrows are displayed HYBRID OVERVIEW RX 400h Multi intormation Displays amp Monitors The Energy Monitor Screen Vehicles with optional Navigation Systems only The optional Energy Monitor shows a simplified representation of the approximate tlow of energy within the hybrid system The display does not show all of the components of the system The display is part of the RX 400h Navigation System and is located at the center console display The Energy Monitor display changes as the RX 400Oh transitions through different driving conditions The Energy Monitor display will show the changes in energy and power flow through the system at a given time as the vehicle is driven To access the Energy Monitor screen press the INFO button located on the lower edge of the navigation display On the touch screen that appears touch the TRIP INFO button Energy Monitor Screen description Hybrid battery status Outside temperature Energy flow ane 5 Energy Monitor TEMP F ink Se 2 Mechanical oe gh E drive power a BATTERY Orange y Electrical EJ f l drive power 2 ina 4 Green EEN
15. driving and as much as 5 in city driving e Driving at highway speeds above 60 mph The maximum EPA highway test speed is 60 mph the average speed is 48 mph e Driving on hilly or mountainous terrain and unpaved roads EPA tests assume flat roads e Short trips cause the engine to run more as a percentage of driving as it warms the emissions system e Carrying extra weight or towing a trailer The EPA test assumes only 300 lbs of passengers and cargo e Cargo racks Vehicles are tested without cargo racks which can increase wind drag e Poor maintenance Vehicles tested are in top condition e New vehicles Optimum fuel economy may not be realized until the engine is broken in which may take up to 5 000 miles Source for above information wwwfueleconomy gov HYBRID OVERVIEW RX 400h EPA Mileage Estimates amp Fuel Economy n Ten tips for improving fuel economy The following tips can help you achieve the best possible fuel economy 1 Plan ahead to combine short trips in order to minimize cold starts 2 Accelerate slowly 3 Avoid heavy braking Monitor traffic to minimize braking and coast whenever possible 4 Avoid speeds in excess of 60 mph fuel economy suffers at speeds higher than 60 mph and drops significantly above 70 mph 5 In stop and go traffic accelerate to the desired level then lift off the accelerator pedal allowing the vehicle to run more on electric power 6 Check tire pre
16. e engine drive the vehicle MGR is not powered The engine drives MG1 as a generator to power MG2 and charge the hybrid battery as needed Full acceleration The engine MG2 and MGR work together to drive the vehicle The hybrid battery supplies additional power to MG2 and MGR Cruising constant speed Primarily the engine will drive the vehicle The engine MG1 MG2 and MGR will come on as needed depending on road conditions and other factors MG2 and MGR may act as motors or as generators depending on the need to make power or regenerate electricity to recharge the hybrid battery Coasting and braking As part of the regenerative braking system MG2 and MGR act as generators to regenerate electricity to charge the hybrid battery The engine may turn off betore the vehicle comes to a complete stop Backing up MG2 and MGk reverse direction to drive the vehicle The engine is typically off unless it is needed to recharge the hybrid battery or warm up the engine Vehicles with optional All Wheel Drive only HYBRID OVERVIEW RX 400h 20 RX 400h Monitor 5 Energy Frequently Asked Questions O i Q How should choose between an RX 330 and an RX 400h hybrid A If most of your driving is highway cruising or you leave your vehicle parked for several weeks at a time the RX 330 may best meet your needs If most of your driving is stop and go city and you want improved acceleration and fuel economy the RX 40
17. egenerating electricity and charging the hybrid battery e The arrows point away from the wheels and electric motors and then to the battery Vehicles with optional All Wheel Drive only continued on next page HYBRID OVERVIEW RX 400h 12 Multi intormation Displays amp Monitors Typical Energy Monitor Screens continued Vehicles with optional Navigation Systems only The vehicle is stopped and the engine is charging the hybrid battery e The arrows point trom the engine to the front electric motor then to the hybrid battery a bth Battery Status information OUTSIDE TEME Bae is at high charge level bars are green Battery is at a ere level bars are purple Battery status indicator showing six blue bars indicating battery is at medium charge level The approximate amount of electric charge available in the hybrid battery is displayed in one of 8 different levels Unlike the vehicle fuel gauge it is normal for the battery status indicator to actively move up and down and change color depending on driving conditions The top green bar may not appear except after driving down long mountain grades Vehicles with optional All Wheel Drive only HYBRID OVERVIEW RX 400h 13 Multi intormation Displays amp Monitors The Consumption Monitor Vehicles with optional Navigation Systems only To access the Consumption Monitor screen press the INFO button located on the lower edge of t
18. es may suffer from decreased performance at higher altitudes where there is less oxygen in the air Because the power output of the hybrid battery is not directly affected by altitude the RX 400h s acceleration performance can be less affected by altitude than a conventional vehicle This performance capacity figure is for comparison only and was obtained with a prototype vehicle by a professional driver using special safety equipment and procedures This should not be attempted on public streets or highways HYBRID OVERVIEW RX 400h Orsus RX 400h EPA Mileage Estimates amp Fuel Economy Quick Facts EPA Mileage Estimates The EPA estimated fuel economy numbers are derived from vehicle testing conducted at the U S Environmental Protection Agency s EPA s National Vehicle and Fuel Emissions Laboratory in Ann Arbor Michigan Vehicle manufacturers also submit test results based on strict EPA standardized drive patterns Each year the EPA provides the data to the Department of Energy which publishes the results at www tueleconomy gov Some quick facts about EPA estimated fuel economy tests Federal law requires EPA estimated fuel economy to be provided on a fuel economy label affixed to the window of every vehicle see Figure 1 The EPA estimates serve as a useful guide tor comparing the relative fuel efficiency of various vehicles and are intended for comparison only Fuel economy estimates are determined under ideal laborator
19. he navigation display On the touch screen that appears touch the TRIP INFO button The Consumption Monitor description Outside temperature amp Consumption Teme 00 F 50 h Regenerated e MPG 40 20 30 min 25 20 15 10 5 0 J Current AVERAGE Energy 20 Ompa 2020miles _ Reset Press to go to Average fuel Distance Press to clear the average the Energy economy in travelled fuel economy and distance Monitor screen MPG travelled continued on next page rl E RD OV ele Wy ia RX 400h 14 Multi intormation Displays amp Monitors The Consumption Monitor continued Vehicles with optional Navigation Systems only ae A tal Ei KE OUTED o eee Consumption feme 65 F box equals Souh Regenerated MPG less than 60 50 Wh Watt hours of SF electricity one E E Yellow bars E represent un E a a a 0 7A Each E box EETA 5 10 5 0 Current aa equals 50 Wh Energy 20 ONPG 2020mies Reset economy MPG Watt hours for 5 minute of electricity intervals D Current fuel economy MPG The Consumption Monitor displays three charts combined into one D The yellow bar display on the far right represents fuel economy from moment to moment 2 The yellow bars represent the average fuel economy in miles per gallon MPG The higher the bars reach the better fuel economy the vehicle is getting Each bar represents a 5 minute period The b
20. ining and other photos are from CJE Automotive Marketing under contract with Lexus Product Coordination HYBRID OVERVIEW RX 400h QOvrexus THE PASSIONATE PURSUIT OF PERFECTION M N 00242 RXHYB 06 Printed in USA 11 05 2005 Lexus
21. o you have to charge it plug it in A The Lexus hybrid technology automatically recharges the 12 volt and hybrid batteries using regenerative braking or by running the engine to generate electricity However if the vehicle has been parked for a long time the 12 volt and the hybrid battery will discharge gradually For parking longer than about 30 days charging of the 12 volt battery may be required See your dealership tor details lo keep the hybrid battery in good condition drive the vehicle at least once every several months for at least 30 minutes or ten miles If the hybrid battery becomes tully discharged and the vehicle will not start even with a jump start to the 12 volt battery contact your Lexus dealership Q What maintenance is required A The maintenance requirements are comparable to what a gasoline powered RX 330 requires The hybrid battery and motor generators do not require ongoing maintenance However to keep the hybrid battery in good condition drive the vehicle at least once every several months for at least 30 minutes Lexus recommends having RX 400h maintenance and repairs performed by an authorized Lexus dealership To locate your nearest authorized Lexus dealership contact Lexus at 800 255 3987 or log onto www lexus com Maintenance and repairs not performed by an authorized Lexus dealership should be pertormed by a qualitied technician following procedures in Lexus service and repair publications Q What safe
22. s The RX 400h uses an Electronically controlled Continuously Variable Transmission ECVT The transmission does not shift with fixed gear ratios like a conventional transmission so it delivers power in a seamless efficient and smooth manner The B gear position is for engine braking The engine will turn off and on while you drive The engine will automatically turn on and off as needed At medium or high speeds it is normal for the engine to be on most of the time At low speeds or when stopped the engine may or may not be on depending on the need You will notice different sounds while driving The engine sound will be more steady than a conventional vehicle when accelerating due to the smooth operation of the ECVT It is also normal for the new technology of the Hybrid Synergy Drive system to make a whirring sound while driving The brakes may feel different The RX 400h has a regenerative braking system which works in conjunction with its conventional hydraulic braking system As a result the brakes may feel different from a conventional vehicle continued next page HYBRID OVERVIEW RX 400h Driving the RX 40Oh Some parking attendants may not be familiar with the RX 400Oh To properly operate the vehicle these basic tips are important 1 Turn key to START and release 2 Begin driving when READY light stays on 3 The engine will start and stop automatically New RX 400h vehicles come with parking
23. s slip lt is driven by electrical power from the hybrid battery and MGI as needed During braking or deceleration it generates electricity to recharge the hybrid battery The All Wheel Drive system operates automatically as needed Vehicles with optional All Wheel Drive only The RX 400h is not designed to be driven off road continued on next page HYBRID OVERVIEW RX 400h 18 RX 400h Hybrid Technology Lexus Hybrid Synergy Drive main components continued Hybrid Battery Composed of sealed nickel metal hydride modules the 288 volt hybrid battery is located under the rear seat It supplies power to the electric motors during start up acceleration uphill driving and reverse It supplies power to the Inverter for use by the electric motors and stores regenerative energy captured during coasting and braking conditions O Inverter Converts the hybrid battery s high voltage DC current into AC current for the electric motors and vice versa depending on driving demands and electrical system needs Taking the function of a conventional alternator it maintains the 12 volt battery The inverter can also boost the hybrid battery s power up to 650 volts as needed Hybrid Electronic Control System Monitors and controls the power flow operation of MG1 MG2 MGR and the inverter O Regenerative Braking System Helps recover energy used to slow the vehicle during braking or coasting During braking or coasting MG2 and MGR
24. ssure and maintain it at the recommended pressure 7 Avoid carrying unnecessary loads extra weight reduces fuel economy 8 Use the air conditioner and defroster only as needed 9 Use premium fuel to improve fuel economy and performance 10 Use the D gear position rather than the B position During normal driving conditions always drive in D for best fuel economy Only use B gear position if needed to help maintain vehicle speed when going down steep grades HYBRID OVERVIEW RX 400h RX 400h Multi intormation Display amp Monitors All RX 400hs are equipped with a Multi information Display that shows a simplified representation of the approximate flow of energy within the hybrid system The display does not show all of the components of the system To show the Energy Monitor display press the DISP button located on the steering wheel until you reach the Energy Monitor display It may be necessary to press the button more than once to reach this display The vehicle is being primarily driven by the engine e The arrow points away from the engine and then to the wheel The level of hybrid battery charge circled in red will be shown by the amount of white within the battery image The vehicle is being driven by the hybrid battery e The arrow points away from the hybrid battery and then to the wheel The vehicle is being driven by both the engine and the hybrid battery e The arrows point aw
25. the Consumption Monitor screen vehicles with optional Navigations Systems only Volt The unit of measure for voltage Voltage is the electrical pressure which causes current to flow in an electrical circuit Watt A unit of electrical power One watt equals 1 746th horsepower Wh Watt hours Electrical power used or in the case of the RX 400Oh regenerated and measured in terms of time Vehicles with optional All Wheel Drive only HYBRID OVERVIEW RX 400h 26 Index 12 volt battery 2 19 22 24 Acceleration 3 6 16 18 21 23 26 AWD All Wheel Drive 3 4 6 9 18 23 B gear position 1 7 Backing up 20 Brakes 1 23 Braking 16 18 20 22 23 25 26 Charging 2 8 12 13 22 Coasting 8 12 16 19 20 Consumption Monitor 9 14 15 26 Cruising 19 21 DISP button 8 Displacement 23 Dimensions 23 Drivetrain 23 E box 15 ECVT Electronically controlled Continuously Variable Transmission 1 19 23 24 25 26 Electric motor generator 9 20 23 25 Energy Monitor 8 14 Engine 1 3 6 8 10 13 17 20 22 26 EPA Mileage Estimates 5 7 Front electric motor generator MG2 9 12 18 20 24 25 Fuel Door 2 Fuel Tank 2 23 Horsepower hp 23 25 26 HOV lane 22 Hybrid battery 2 4 8 13 15 17 26 Hybrid battery status 9 13 Hybrid electronic control system 19 21 Hybrid Synergy Drive 1 17 20 25 Hybrid technology 17 20 22 24 26 IN
26. tor gyrju 3P ENGINE E a BATTERY PX es r REARELEC MOTOR way FR LEC MOTOR Consumption Gurrent MPG The vehicle is being driven by the engine and the front electric motor e The arrows point away from the hybrid battery the engine and the front electric motor and then to the front wheels Se gt i Energy Monitor SOU gt F ENGINE OI EERS p REAR ELEC MOTOR Sz FR LEC MOTOR Consumption fG rrent MPG The vehicle is being driven by the front and rear electric motors e The arrows point away from the hybrid battery and the front and rear electric motors and then to the front and rear wheels Vehicles with optional All Wheel Drive only continued on next page HYBRIO TOVERVIEW RX 400h 11 Multi intormation Displays amp Monitors Typical Energy Monitor Screens continued Vehicles with optional Navigation Systems only K Energy Monitor gysgu oF ENGINE S Berns sah E A HI REAR ELEC MOTOR wi FR LEC MOTOR Consumption Curent MPG The vehicle is being driven by the engine and the front and rear electric motors e The arrows point away from the hybrid battery the engine and both front and rear electric motors and then to the front and rear wheels 5 Energy Monitor OUTS DERE ENGINE A a BATTERY Cy jor To REARELEC MOTOR way FR LEC MOTOR Consumption Gurrent MPG The vehicle is coasting or slowing down r
27. ty standards does the RX 400h comply with A Lexus engineers have spent enormous effort to ensure this vehicle meets or exceeds all of the U S government s stringent safety standards as do all Lexus vehicles See the Owner s Manual and other owner information materials in the vehicle for important Safety Precautions my BID VERY e Ww RX 400h 22 Cale a RX 400h Hybrid Specitications Hybrid System Engine lype Displacement Valvetrain Electric Drive Motors Hybrid Battery Total System Horsepower Body dimensions Curb Weight Fuel Tank Capacity Performance O 60 acceleration Top Track Speed Fuel Consumption Drivetrain Type Transmission Chassis Brakes RX 400h 60 V6 aluminum block and heads certified Super Ultra Low Emissions Vehicle SULEV 3 3 liters 202 cubic inches Four cam four valves per cylinder with continuously Variable Valve Timing with intelligence VVT i 2 Front and 1 rear high output permanent magnet electric motor generators Sealed Nickel Metal Hydride NIMH modules 288 volt 268 hp 5 600 rpm combined engine and hybrid battery Front wheel drive 4190 lb All wheel drive 4 365 Ib 17 2 gallons Front wheel drive 7 5 seconds All wheel drive 69 seconds 112 mph electronically limited Front wheel drive 33 28 mpg city highway estimated All wheel drive 31 27 mpg city highway estimated Front wheel drive or optional part time
28. wers your Lexus RX 400h is an advanced system that incorporates the advantages of both electric motors and gasoline engines The RX 400h can be driven on hybrid battery power alone for short distances at lower speeds then the engine will start when power is needed to recharge the 12 volt and hybrid batteries or when driving conditions call for more power HSD automatically controls energy usage in the most efficient way possible The system even captures energy when the vehicle is slowing down This chapter explains some of the components that make up the Lexus Hybrid Synergy Drive System and their functions HYBRID OVERVIEW RX 400h 17 RX 40Q0h Hybrid Technology Lexus Hybrid Synergy Drive main components a 3 3 L24 V DOHC V 6 Engine with VVT i The primary power source for your vehicle the engine works in conjunction with the hybrid battery to deliver power to the ECVT a Electric Motor Generator MG1 Serves as the starter motor for the engine anda pathway for the engines power to reach the front wheels 3 Front Electric Motor Generator MG2 Delivers power to the front wheels It can run alone or with the engine It is driven by electrical power from MG1 and or the hybrid battery During braking or deceleration it generates electricity to recharge the hybrid battery O Rear Electric Motor Generator MGR Operates when starting from a stop during hard acceleration sharp turning and if the front wheel
29. y conditions tollowing a standardized test determined by federal law Each vehicle must complete 2 tests simulating city and highway driving The vehicle s drive wheels are placed on special equipment that simulates the driving environment EPA Tests Assume e Very slow acceleration e Average speed of 20 mph for city test e Straight level roads top speed 56 mph e Air conditioning is turned off e 18 idle time for city test e 0 idle time for highway test e Average speed of 48 mph for highway test top speed of 60 mph See wwwfueleconomy gov for further details HYBRID OVERVIEW RX 400h EPA Mileage Estimates amp Fuel Economy Typical EPA Mileage Estimate data found on vehicle window sticker Sticker and figures for AWD model Figure 1 Actual Mileage will vary with options driving conditions driving habits and vehicle s condition Results reported to EPA indicate that the majority of vehicles with these estimates will achieve between 26 and 36 mpg in the city and between 22 and 32 mpg on the highway Why you may not achieve the EPA estimates Because the EPA fuel economy estimates are derived in ideal laboratory conditions they are just estimates which may not reflect real world conditions There are many factors which may cause your actual mileage with the RX 40Oh or other vehicles to vary from the EPA estimates e Quick acceleration and heavy braking may reduce mileage by as much as 33 in highway
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