RX 350 and RX 450h - drivers.lexus.com RX 450h is a gas/electric hybrid vehicle that has both...

2010

RX 350 and RX 450h

UPDATED MAINTENANCE REQUIREMENTS

Important Supplement to Your Warranty and Services Guide

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The RX 450h is a gas/electric hybridvehicle that has both high-voltage DCand AC systems as well as a 12-voltsystem. Both DC and AC high volt-age are very dangerous and cancause personal injury, severe burns,electric shock and even fatal injuryunless appropriate precautions aretaken.

To avoid personal injury, please followall caution labels attached to high-voltage parts. Do not touch orattempt to remove or replace anyhigh-voltage (orange-colored) wiringand connectors. Do not touch theservice plug behind the trim under the left rear seat.

If an accident occurs, do not touchany high-voltage wiring, connectorsor parts such as the inverter under thehood or the hybrid battery assemblyunder the rear seat.

Do not touch the potassium hydroxideelectrolyte that might spill or leakfrom the hybrid battery as the result ofan accident. If potassium hydroxideelectrolyte gets on your skin or inyour eyes, neutralize it immediatelywith a saturated boric acid solution(ratio: 80 grams boric acid to twoliters water). Seek immediate medicalattention.

If a vehicle fire occurs, extinguish it with a Class D powder-type fire extinguisher.

SAFETY PRECAUTIONS

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Introduction 1

IMPORTANT NOTICE

This booklet replaces the “Scheduled Maintenance Log” section of theWarranty and Services Guide in your glove box. Please refer to the bookletyou are now reading for information on scheduled maintenance requirementsfor your vehicle. The “Scheduled Maintenance Log” section of the Warrantyand Services Guide no longer applies to your vehicle.

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MAINTENANCE BASICS

MAINTENANCE ISESSENTIAL

Regular maintenance is essential toobtaining the highest level of per-formance, safety and reliability fromyour Lexus. It can also enhance yourvehicle’s resale value.

It is especially important to checkyour vehicle’s engine oil once amonth and to regularly replace theengine oil and oil filter. Failure to doso can cause oil starvation and/or oilgelling, which can result in severedamage to your vehicle and requirecostly repairs that are not covered bythe New Vehicle Limited Warranty.

Lexus recommends having mainte-nance for your vehicle performed byan authorized Lexus dealership. Tolocate your nearest authorized Lexusdealership, contact Lexus CustomerSatisfaction at (800)255-3987 orvisit www.lexus.com.

DETERMINING YOURMAINTENANCEINTERVAL: MONTHS VS. MILEAGE

Lexus recommends obtaining maintenance for your vehicle everysix months or 5,000 miles, whichevercomes first.

For example:

• If at six months you have drivenless than 5,000 miles, youshould obtain maintenance at six months; don’t wait until5,000 miles.

• If you drive 5,000 miles in lessthan six months, you shouldobtain maintenance at 5,000miles; don’t wait until six months.

Be sure to keep an eye on your mile-age so that you obtain maintenancewhen recommended. If you are a low-mileage driver, mark your calendar to remind yourself to obtain mainte-nance every six months.

Introduction2

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In addition to standard maintenanceitems, vehicles that are driven underspecial operating conditions requirefurther maintenance service. Thesespecial operating conditions, whichput added demands on a vehicle,include:

• Driving off-road, on dirt roads oron dusty roads

• Towing a trailer, using a car-topcarrier or heavy vehicle loading

• Repeated trips of less than fivemiles in temperatures below 32° F or 0°C

• Extensive idling and/or low-speed driving for long distances,such as police, taxi or door-to-door delivery use

Note: If you drive only occasionallyunder any of the special operatingconditions noted, it is not necessary to change the oil every six months or5,000 miles or to perform the addi-tional services listed in the charts. Thisadded maintenance is required only ifyou drive primarily under any of thespecial operating conditions.

Introduction

SPECIAL OPERATING CONDITIONS

3

If you drive primarily under anyof the conditions noted above,you should replace the engineoil and oil filter every six monthsor 5,000 miles. Some of thesespecial operating conditionsrequire other maintenance items;these items are indicated in eachmaintenance chart.

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COMPLIMENTARY SERVICES

To help ensure that your ownershipexperience is pleasant, convenientand trouble-free, Lexus provides yourfirst two maintenance services at nocharge. Here are the details.

First Scheduled MaintenanceService: Six Months or 5,000 Miles This complimentary service is per-formed at six months or 5,000 miles,whichever occurs first. To obtain thisservice, contact your Lexus dealer-ship. Your complimentary service willinclude these items:

• Inspect and adjust all fluid levels

• Program Lexus PersonalizedSettings, if requested

• Reset maintenance reminderlight

• Rotate tires

• Visually inspect brake pads,calipers and rotors

• Check installation of driver’sfloor mat

• Road-test vehicle

What are Lexus PersonalizedSettings? Your vehicle includes a variety ofelectronic features that can be pro-grammed to your preferences. Forexample, doors can be programmedto remain locked when you shift into“Park.” Programming of these featuresis performed once at no charge, pro-vided you obtain the service at thesix-month/5,000-mile scheduledmaintenance service. Programming of your Lexus Personalized Settingsrequires special equipment and maybe performed only by an authorizedLexus dealership.

For more information, see the“Customizable Features’ section ofthe Specifications chapter in yourOwner’s Manual.

Introduction4

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Second ScheduledMaintenance Service: 12 Months or 10,000 Miles This complimentary service is per-formed at 12 months or 10,000 miles,whichever occurs first. To obtain thisservice, contact your Lexus dealer-ship. Your complimentary service will include these items:

• Replace engine oil with 0W-20oil; replace oil filter

• Reset maintenance reminderlight

• Rotate tires

• Visually inspect brake pads,calipers and rotors

• Check installation of driver’sfloor mat

• Road-test vehicle

If you do the majority of your drivingunder certain special operating con-ditions, additional items are includedin this service. See the “12,000Months or 10,000 Miles” chart onpage 6.

Introduction

COMPLIMENTARY SERVICES

5

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SCHEDULED MAINTENANCE LOG

6 Months or 5,000 Miles1 12 Months or 10,000 Miles2

❏ Replace engine oil with 0W-20 oil; replace oil filter

❏ Reset maintenance reminder light

❏ Rotate tires

❏ Visually inspect brake pads, calipers and rotors

❏ Check installation of driver’s floor mat

❏ Road-test vehicle

If you drive primarily under either of these special operating conditions, perform these additional items:

Driving off-road, on dirt roads or on dusty roads:

❏ Inspect axle shaft boots

❏ Inspect ball joints and dust covers

❏ Inspect engine air filter

❏ Inspect steering linkage and boots

❏ Re-torque nuts and bolts of drive shaft (RX 350 AWD)

❏ Tighten axle shaft bolts (RX 450h AWD)

❏ Tighten nuts and bolts on chassis

Towing a trailer, using a car-top carrier or heavy vehicle loading:




Date: ________ Mileage: ________

Scheduled Maintenance Log6

1This service, excluding maintenance required for special operating conditions, is complimentary when performed by anauthorized Lexus dealership.

2This service is complimentary when performed by an authorized Lexus dealership.

❏ Inspect and adjust all fluid levels

❏ Program Lexus Personalized Settings, ifrequested


❏ Rotate tires




Note: If you drive primarily under certain specialoperating conditions, you should also replace theengine oil with 0W-20 oil and replace the oil filter.See page 3 for conditions that apply. Some condi-tions require additional maintenance. See below.














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Scheduled Maintenance Log 7

18 Months or 15,000 Miles❏ Clean air conditioner filter


❏ Replace Smart Key battery



❏ Rotate tires





❏ Inspect the following:___Axle shaft boots

___Ball joints and dust covers

___Body

___Brake lines and hoses

___Engine coolant (RX 350; see page 28)

___Engine/inverter coolant (RX 450h; see page 28)

___Exhaust pipes and mountings

Note: If 0W-20 oil was not used at last oil change, or if you drive primarily under certain special operatingconditions, you should also replace the engine oil with 0W-20 oil and replace the oil filter. See page 3 forconditions that apply. Some conditions require additional maintenance. See below.

If you drive primarily under either of these special operating conditions, perform theseadditional items:





❏ Replace rear differential oil (RX 350 AWD)

❏ Replace transfer case oil (RX 350 AWD)


___Rack and pinion assembly

___Rear differential oil (RX 350 AWD)

___Steering linkage and boots

___Transfer case oil (RX 350 AWD)

___Variable gear ratio steering assembly

(RX 450h)

Date: ___________________________ Mileage: __________________________

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24 Months or 20,000 Miles❏ Replace engine oil with 0W-20 oil; replace

oil filter


❏ Rotate tires

















30 Months or 25,000 Miles


Date: ________ Mileage: ________ Date: ________ Mileage: ________



❏ Rotate tires




Note: If 0W-20 oil was not used at last oil change, or if you drive primarily under certain special operating conditions, you should alsoreplace the engine oil with 0W-20 oil and replace the oil filter. See page 3 for conditions that apply. Some conditions require additionalmaintenance. See below.














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36 Months or 30,000 Miles❏ Replace engine oil with 0W-20 oil; replace oil filter


❏ Rotate tires


❏ Replace air conditioner filter

❏ Replace brake fluid

❏ Replace engine air filter



___Body


___Brake rotor thickness and runout




___Fuel lines and connections, fuel tank bandand fuel tank vapor vent system hoses








___Fuel tank cap gasket


___Rear differential oil (AWD only)



___Transmission fluid


(RX 450h)






Date: ___________________________ Mileage: __________________________

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42 Months or 35,000 Miles 48 Months or 40,000 Miles❏ Replace engine oil with 0W-20 oil; replace

oil filter


❏ Rotate tires





















❏ Rotate tires


















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❏ Rotate tires







___Body



















(RX 450h)

Date: ___________________________ Mileage: __________________________

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oil filter


❏ Rotate tires






















❏ Rotate tires


















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___Body



___Drive belts









❏ Replace rear differential oil (AWD only)


❏ Replace transmission fluid









(RX 450h)

❏ Rotate tires





Date: ___________________________ Mileage: __________________________

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oil filter


❏ Rotate tires





















❏ Rotate tires


















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❏ Rotate tires







___Body


___Drive belt


















(RX 450h)

Date: ___________________________ Mileage: __________________________

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oil filter


❏ Rotate tires






















❏ Rotate tires


















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___Body



___Drive belt




___Fuel lines and connections, fuel tank band and fuel tank vapor vent system hoses















(RX 450h)

❏ Rotate tires





Date: ___________________________ Mileage: __________________________

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oil filter

❏ Replace engine coolant (see page 28)


❏ Rotate tires





















❏ Rotate tires


















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❏ Rotate tires







___Body


___Drive belt

___Engine/inverter coolant (RX 450h;

see page 28)












___Rear differential oil




(RX 450h)

Date: ___________________________ Mileage: __________________________

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oil filter


❏ Rotate tires





















❏ Inspect engine coolant (see page 28)


❏ Rotate tires


















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❏ Replace spark plugs (on RX 350, use Denso FK20HR11 plugs or equivalent)1



___Body



___Drive belt



___Fuel lines and connections, fuel tank band and fuel tank vapor vent system hoses





❏ Replace rear differential oil (AWD only)


❏ Replace transmission fluid









(RX 450h)


❏ Rotate tires





1Required under the terms of the Emission Control Warranty.

Date: ___________________________ Mileage: __________________________

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oil filter



❏ Rotate tires





















❏ Rotate tires


















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❏ Rotate tires







___Body


___Drive belt

















(RX 450h)

Date: ___________________________ Mileage: __________________________

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oil filter


❏ Rotate tires























❏ Rotate tires


















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❏ Replace engine coolant (RX 350; see page 28)

❏ Replace engine/inverter coolant (RX 450h; see page 28)




___Body



___Drive belt

















(RX 450h)


❏ Rotate tires





Date: ___________________________ Mileage: __________________________

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EXPLANATION OF MAINTENANCE ITEMS


The following descriptions are provid-ed to give you a better understandingof the maintenance services thatshould be performed on your vehicle.The scheduled maintenance log indi-cates at which time/mileage intervalseach service should be performed.Please note that many maintenanceservices should be performed only by a qualified technician.

Air Conditioner FilterClean or replace at specified inter-vals. More frequent cleaning orreplacement may be required whendriving in heavy traffic areas, in urbanor dusty areas, in desert areas or ondirt roads. Refer to your Owner’sManual for service details.

Axle Shaft BootsCheck the axle shaft boots andclamps for cracks, deterioration anddamage. Replace any damaged partsand, if necessary, repack the grease.A qualified technician should performthese operations.

Ball Joints and Dust CoversCheck the suspension and steeringlinkage ball joints for looseness anddamage. Check all dust covers fordeterioration and damage. A qualifiedtechnician should perform theseinspections.

Battery: 12-Volt (AuxiliaryBattery) (RX 450h)The original-equipment 12-volt battery, located on the left side of the cargo compartment, is a sealed,maintenance-free special-applicationbattery that is different from a conventional automotive battery.Replacement batteries are availablefrom your Lexus dealership.

Battery: Hybrid (TractionBattery) (RX 450h)The hybrid battery is a NiMH (nickelmetal hydride) compact, high-outputbattery. This battery does not requireregular maintenance. However, if thevehicle is parked for a long time, thehybrid battery will discharge gradual-ly. To keep the hybrid battery in goodcondition, drive the vehicle at leastonce every several months for at least30 minutes or 10 miles. If the hybridbattery becomes fully discharged andthe vehicle will not start even with a

For further information on maintenance services that youcan perform yourself, see themaintenance sections of yourOwner’s Manual.

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jump-start to the 12-volt battery, con-tact your Lexus dealership.

Any repairs to the hybrid battery orhybrid system should be performedby a qualified technician followingprocedures in Lexus service andrepair publications. Please refer tothe important safety precautions onthe inside front cover of this booklet.

Body InspectionVisually check for corrosion, scratch-es and other damage. Check outerbody panels, inner panels of the hoodand doors, and underneath the vehi-cle. Apply touch-up paint to any chipsand scratches or have them repairedby a qualified technician.

Brake FluidReplace using fluid type specified in your Owner’s Manual. A qualifiedtechnician should perform this operation.

Brake Lines and HosesVisually inspect for proper installation.Check for chafing, cracks, deteriora-tion and signs of leakage. Replace any deteriorated or damaged parts. A qualified technician should performthese operations.

Brake Pads, Calipers and RotorsCheck brake pads and rotors forexcessive wear; check brake rotorsfor runout. Check brake calipers forfluid leakage. Check the parkingbrake linings (shoes) and drums forscoring, burning, fluid leakage, brokenparts and excessive wear. A qualifiedtechnician should perform theseinspections.

Differential Oil (RX 350)Check for correct oil level andinspect each differential componentfor signs of leakage. If you discoverany leakage, have it repaired immedi-ately by a qualified technician. Referto your Owner’s Manual for fluidspecifications.

Drive BeltInspect for cracks, excessive wearand oiliness. Check the belt tensionand adjust if necessary. Replace thebelts if they are damaged.

Drive Shaft (RX 350)Re-torque the flange nuts and bolts. A qualified technician should performthis operation.

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Driver’s Floor Mat• Only use the driver’s floor mat

designed specifically for themodel and model year of yourvehicle, such as Lexus Genuinefloor mats.

• Always properly secure the dri-ver’s floor mat using the retaininghooks.

• Never install another floor maton top of the existing driver’sfloor mat.

• Never install the driver’s floormat upside down.

Engine Air FilterCheck for damage, excessive wearand oiliness. Replace if necessary.

Engine Coolant (RX 350) or Engine/Inverter Coolant (RX 450h)When inspecting, visually check the level of the engine coolant orengine/inverter coolant on the see-through reservoir. Add coolant asnecessary. When replacing, drain and flush the cooling system and refillwith coolant. Always use GenuineToyota Super Long-Life Coolant orsimilar high-quality non-silicate, non-amine, non-borate ethylene-glycol

coolant with long-life hybrid organicacid technology (i.e., a combination of low phosphates and organic acids).A qualified technician should per-form these operations. RX 450howners: Please refer to the impor-tant safety precautions on the insidefront cover of this booklet.

Check the radiator and condenser for blockage by leaves, dirt or insectsand clean if necessary. Also check the hose connections for corrosionand condition of installation.

Note: Initial replacement of enginecoolant is at 120 months/100,000miles. Replace every 60 months/50,000 miles thereafter. Initialreplacement of inverter coolant is at180 months/150,000 miles. Replaceevery 60 months/50,000 milesthereafter.

Engine Oil and Oil FilterReplace the oil filter and drain andrefill the engine oil at specified inter-vals. SAE 0W-20 oil is the bestchoice for good fuel economy andgood starting in cold weather. If SAE0W-20 is not available, SAE 5W-20may be used; however, it must bereplaced with SAE 0W-20 at the nextoil change. See your Lexus dealer for

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oil specifically formulated for yourvehicle’s engine. For instructions onhow to reset the reminder light, referto your Owner’s Manual.

Note: If you do the majority of yourdriving under any of the special oper-ating conditions indicated on page 3,you should replace the engine oil andoil filter every six months or 5,000miles, regardless of the oil used or thecertification of the vehicle.

Engine Valve Clearance (RX 450h)This engine has hydraulic valveadjusters that require no periodicclearance inspection or adjustment.

Exhaust Pipes and MountingsVisually inspect the exhaust pipes,muffler and hangers for cracks, deterioration and damage. Start the engine and listen carefully for any exhaust leakage. Tighten connec-tions and replace parts as necessary.

Fuel Lines and Connections, FuelTank Band and Fuel Tank VaporVent System HosesVisually inspect for corrosion, dam-age, cracks, and loose or leaking connections. Tighten connections and replace parts as necessary.

Fuel Tank Cap GasketVisually inspect for cracks, deterio-ration and damage and replace if necessary.

Nuts and Bolts on ChassisCheck that tightness of the seat-mounting bolts and front/rear suspen-sion-member retaining bolts matchestorque measurements specified in theRepair Manual.

Rack and Pinion AssemblyInspect the rack and pinion assemblyfor signs of leakage, damage andloose electrical connections. Tightenconnections and if you discover anyleakage or damage, have it repairedimmediately by a qualified technician.

Rear Differential Oil (RX 450h)Check level and condition of oil andinspect the rear differential assemblycase for signs of leakage. (The rearelectric motor/generator does notrequire periodic maintenance.) Anyservice that requires inspecting orreplacing rear differential oil shouldbe performed by a qualified techni-cian following procedures in Lexus service and repair publications.Please refer to the important safetyprecautions on the inside front coverof this booklet.

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Road TestWhile driving the vehicle, check forproper operation of engine, transmis-sion, brakes and steering. Also checkfor abnormal noise or vibration fromany part of the vehicle.

Spark PlugsReplace at specified interval. Installnew plugs of the same type as origi-nally equipped (see your Owner’sManual). A qualified technician shouldperform this operation. RX 350 own-ers: To ensure optimum engine per-formance, replace only with DensoFK20HR11 plugs or equivalent.

Steering Linkage and BootsWith the vehicle stopped, check forexcessive freeplay in the steeringwheel. Inspect the linkage for bendingand damage and the dust boots fordeterioration, cracks and damage.Replace any damaged parts. A quali-fied technician should perform theseoperations.

Timing ChainYour vehicle is equipped with a timingchain that requires no periodicinspection.

Tire-Pressure Warning SensorsA tire-pressure sensor is mounted oneach full-size wheel. These sensors do not require periodic maintenance.When a sensor’s long-life lithium bat-tery becomes discharged, the batteryshould be replaced by a qualifiedtechnician following procedures inLexus service and repair publications.

Tire RotationTires should be rotated according to the instructions in your Owner’sManual. When rotating tires, checkpressure and check for damage anduneven wear. If the spare is not rotat-ed, check the condition and pressureof the spare.

Transfer Case Oil (RX 350)Check for correct oil level andinspect each component for signs ofleakage. If you discover any leakage,have it repaired immediately by aqualified technician. For correct oil,refer to your Owner’s Manual.

Transmission Fluid (RX 350)Inspect each transmission componentfor signs of leakage. If you discoverany leakage, have it repaired immedi-ately by a qualified technician.



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Transmission Fluid (RX 450h)Check level and condition of fluid andinspect the transmission/front differ-ential assembly case for signs of leak-age. (The front electric motor/genera-tors do not require periodic mainte-nance.) Any service that requiresinspecting or replacing transmission/front differential fluid should be per-formed by a qualified technician fol-lowing procedures in Lexus serviceand repair publications. Please referto the important safety precautionson the inside front cover of thisbooklet.

Variable Gear Ratio SteeringAssembly (RX 450h) Inspect the variable gear ratio steer-ing assembly for damage and looseelectrical connections. Tighten looseconnections and if you discover anydamage, have it repaired immediatelyby a qualified technician followingprocedures in Lexus service andrepair publications.

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NOTES


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00505–10UMR–RX PRINTED 1/10

THE PURSUIT OF PERFECTION.

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RX 350 and RX 450h - drivers.lexus.com RX 450h is a gas/electric hybrid vehicle that has both...

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