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Power steering fluid level Check the level through the reservoir. The level should be in the “HOT” or “COLD” range depending on the fluid temperature. See page 471 in Section 7−2 for addition- al information. Exhaust system If you notice any change in the sound of the exhaust or smell exhaust fumes, have the cause located and corrected immedi- ately. (See “Engine exhaust cautions” on page 380 in Section 2.) INSIDE THE VEHICLE Items listed below should be checked regularly, e.g. while performing periodic services, cleaning the vehicle, etc. Lights Make sure the headlights, stop lights, tail lights, turn signal lights, and other lights are all working. Check headlight aim. Service reminder indicators and warning buzzers Check that all service reminder indicators and warning buzzers function properly. Steering wheel Be alert for changes in steering condition, such as hard steering or strange noise.


454


Seats Check that all seat controls such as seat adjusters, seatback recliner, etc. operate smoothly and that all latches lock securely in any position. Check that the head re- straints move up and down smoothly and that the locks hold securely in any latched position. For folding−down rear seatbacks and detachable second seats, check that the latches lock securely. Seat belts Check that the seat belt system such as buckles, retractors and anchors operate properly and smoothly. Make sure the belt webbing is not cut, frayed, worn or dam- aged. Accelerator pedal Check the pedal for smooth operation and uneven pedal effort or catching. Brake pedal Check the pedal for smooth operation and that the pedal has the proper clearance. Check the brake booster function. Brakes In a safe place, check that the brakes do not pull to one side when applied.


Parking brake Check that the pedal has the proper travel and that, on a safe incline, your vehicle is held securely with only the parking brake applied. Automatic transmission “Park” mecha- nism On a safe incline, check that your vehicle is held securely with the selector lever in “P” position and all brakes released. OUTSIDE THE VEHICLE Items listed below should be performed from time, unless otherwise specified. Fluid leaks Check underneath for leaking fuel, oil, wa- ter or other the vehicle has been parked for a while. If you smell fuel fumes or notice any leak, have the cause found and corrected immediately. Doors and engine hood Check that all the doors including back door operate smoothly and all latches lock securely. Make sure the engine hood sec- ondary latch secures the hood from open- ing when the primary latch is released.


fluid after


time


to


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Tire inflation pressure Check the pressure with a gauge ev- ery two weeks, or at least once a month. See page 471 in Section 7−2
for additional information. Tire surface and wheel nuts Check the tires carefully for cuts, damage or excessive wear. See page 474 in Section 7−2 for additional in- formation. When checking the tires, make sure no nuts are missing, and check the nuts for looseness. Tighten them if necessary. Tire rotation Rotate the tires according to the maintenance schedule. (For sched- uled maintenance information, please refer to the “Scheduled Maintenance Guide” or “Owner’s Manual Supple- ment”.) See page 476 in Section 7−2
for additional information.


tip−offs


for changes


Does your vehicle need repairing? Be on the alert in perfor- mance, sounds, and visual that indicate service is needed. Some impor- tant clues are as follows: D Engine missing, stumbling, or pinging D Appreciable loss of power D Strange engine noises D A leak under the vehicle (however, wa- ter dripping from the air conditioning after use is normal.)


D Change


in exhaust sound (This may indicate a dangerous carbon monoxide leak. Drive with the windows open and have the exhaust system checked im- mediately.)


D Flat−looking tire; excessive tire squeal


when cornering; uneven tire wear


D Vehicle pulls to one side when driving


straight on a level road


D Strange noises related to suspension


movement


D Loss of brake effectiveness; spongy feeling brake pedal; pedal almost touches floor; vehicle pulls to one side when braking


D Engine coolant temperature continually


higher than normal


If you notice any of these clues, take your vehicle to your Toyota dealer as soon as possible. It probably needs adjustment or repair.


CAUTION


Do not continue driving with the ve- hicle unchecked. It could result in se- rious vehicle damage and possibly personal injury.


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The malfunction indicator lamp will go off after taking several driving trips, but the error code in the OBD system will not be cleared unless about 40 trips or more are taken. If your vehicle does not pass the I/M test even the malfunction indicator lamp does not come on, contact your Toyota dealer to prepare the vehicle for re−testing.


indicator


the malfunction


in- include OBD


Emissions Inspection and Maintenance (I/M) programs Some states have vehicle emission spection programs which (On−Board Diagnostics) checks. The OBD system monitors the operation of the emission control system. When the OBD system determines that a problem exists somewhere in the emission control system, lamp comes on. In this case, your vehicle may the I/M test and need to be not pass repaired. Contact your Toyota dealer to service the vehicle. Even lamp does not come on, your vehicle may not pass readiness codes have not been set in the OBD system. Readiness codes are automatically set during ordinary driving. However, when the battery is disconnected or run down, the codes are erased. Also, depending on your driving habits, the codes may not be completely set. Also, if the malfunction indicator lamp had come on recently due to temporary mal- function such as a loose fuel tank cap, your vehicle may not pass the I/M test.


the malfunction


indicator


test as


I/M


the


if


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SECTION 7− 1


DO−IT−YOURSELF MAINTENANCE Introduction Engine compartment overview Fuse locations Do−it−yourself service precautions Positioning the jack Parts and tools


. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


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459
460
461
463


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Engine compartment overview


1. Power steering fluid reservoir 2. Windshield and rear window washer


fluid tank


3. Engine oil level dipstick 4. Engine coolant reservoir 5. Engine oil filler cap 6. Brake fluid reservoir 7. Fuse block 8. Battery 9. Electric cooling fans 10. Condenser 11. Radiator


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Fuse locations


Spare fuses


Spare fuses


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Do−it−yourself service precautions If you perform maintenance by yourself, be sure to follow the correct procedure given in this Section. You should be aware that improper or in- complete servicing may result in operating problems. Performing do−it−yourself maintenance during the warranty period may affect your warranty coverage. Read the separate Toyota Warranty statement for details and suggestions. This Section gives for those items that are relatively easy for an owner to perform. As explained in Section 6, there are still a number of items that must be done by a qualified technician with special tools. For information on tools and Sections for do−it−yourself maintenance, see “Parts and tools” on page 463 in this Section. Utmost care should be taken when work- ing on your vehicle to prevent accidental injury. Here are a few precautions that you should be especially careful to ob- serve:


instructions only


460


CAUTION


D When the engine is running, keep hands, clothing, and tools away from the moving fan and engine drive rings, watches, and ties is advisable.)


(Removing


belts.


D Right after driving,


the engine compartment—the engine, radiator, exhaust manifold and spark plug boots, etc.—will be hot. So be care- ful not to touch them. Oil, fluids and spark plugs may also be hot.


D If the engine is hot, do not remove the radiator cap or loosen the drain plugs to prevent burning yourself.


D Do not


leave anything


that may burn easily, such as paper or rags, in the engine compartment.


D Do not smoke, cause sparks or al- low open flames around fuel or the battery. Their fumes are flammable. D Do not get under your vehicle with just the body jack supporting it. Al- ways use automotive jack stands or other solid supports.


D Be sure that the ignition is off if you work near the electric cooling fans or radiator grille. With the ignition on, the electric cooling fans will automatically start to run if the engine coolant temperature is high and/or the air conditioning is on.


D Use eye protection whenever you work on or under your vehicle where you may be exposed to flying or falling material, fluid spray, etc. D Used engine oil contains potentially harmful contaminants which may cause skin disorders such as in- flammation or skin cancer, so care should be taken to avoid prolonged and repeated contact with it. To re- move used engine oil from your skin, wash thoroughly with soap and water.


D Do not


leave used oil within the


reach of children.


D Dispose of used oil and filter only in a safe and acceptable manner. Do not dispose of used oil and fil- ter in household trash, in sewers or onto the ground. Call your dealer or a service station information concerning recycling or disposal.


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D Be extremely cautious when work- ing on the battery. It contains poi- sonous and corrosive sulfuric acid.


NOTICE


z Remember that battery and ignition cables carry high currents or volt- ages. Be careful of accidentally causing a short circuit.


z Add only “Toyota Super Long Life Coolant” or similar high quality eth- ylene glycol based non−silicate, non−amine, non−nitrite, and non−bo- rate coolant with long−life hybrid organic acid technology to fill the radiator. “Toyota Super Long Life Coolant” is a mixture of 50% cool- ant and 50% deionized water (for the U.S.A.) or 55% coolant and 45% deionized water (for Canada).


z If you spill some of the coolant, be sure to wash it off with water to prevent it from damaging the parts or paint.


z Do not allow dirt or anything else to fall through the spark plug holes.


05 SIENNA_U (L/O 0409)


Positioning the jack


z Use only spark plugs of the speci- fied type. Using other types will cause engine damage, loss of per- formance or radio noise.


z Do not reuse iridium−tipped spark


plugs by cleaning or regapping.


z Do not overfill automatic transmis- transmission


fluid, or


the


sion could be damaged.


z Do not drive with the air cleaner filter removed, or excessive engine wear could result. Also backfiring could cause a fire in the engine compartment.


z Be careful not to scratch the glass


surface with the wiper frame.


z When closing


the engine hood, check to see that you have not for- gotten any tools, rags, etc.


Front


Rear (two−wheel drive models)


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D Do not raise the vehicle with some-


one in the vehicle.


D When raising the vehicle, do not place any objects on top of or un- derneath the jack.


NOTICE


Make sure to place the jack correctly, or your vehicle may be damaged.


CAUTION


When jacking, be sure to observe the following to reduce the possibility of personal injury: D Follow jacking instructions. D Do not put any part of your body under the vehicle supported by the jack. Personal injury may occur.


D Do not start or run the engine while is supported by the


your vehicle jack.


D Stop the vehicle on a


level firm ground, firmly set the parking brake and put the transmission in “P”. Block the wheels on the opposite side of the jack up point if neces- sary.


D Make sure to set the jack properly in the jack point. Raising the ve- hicle with improperly posi- tioned will damage the vehicle or may allow the vehicle to fall off the jack and cause personal injury.


jack


D Never get under the vehicle when the vehicle is supported by the jack alone; use vehicle support stands.


Rear (all−wheel drive models)


When jacking up your vehicle with the jack, position jack correctly as shown in the illustrations.


the


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Parts and tools Here is a list of parts and tools you will need to perform do−it−yourself mainte- nance. Remember all Toyota parts are de- signed in metric sizes, so your tools must be metric. CHECKING THE ENGINE OIL LEVEL Parts (if level is low): D “Toyota Genuine Motor Oil” or equiva-


lent See page 466 in Section 7−2 for de- tails about engine oil selection.


Tools: D Rag or paper towel D Funnel (only for adding oil) CHECKING THE ENGINE COOLANT LEVEL Parts (if level is low): D “Toyota Super Long Life Coolant” or similar high quality ethylene glycol based non−silicate, non−amine, non−ni- trite, and non−borate coolant with long− life hybrid organic acid technology. “Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deion- ized water (for the U.S.A.) or 55% coolant and 45% deionized water (for Canada).


Tools: D Funnel (only for adding coolant) CHECKING BRAKE FLUID Parts (if level is low): D SAE J1703 or FMVSS No.116 DOT 3


brake fluid


Tools: D Rag or paper towel D Funnel (only for adding fluid) CHECKING POWER STEERING FLUID Parts (if level is low): D Automatic


transmission


DEXRON®II or III


fluid


Tools: D Rag or paper towel D Funnel (only for adding fluid) CHECKING BATTERY CONDITION Tools: D Warm water D Baking soda D Grease D Conventional wrench


(for


terminal


clamp bolts)


CHECKING AND REPLACING FUSES Parts (if replacement is necessary): D Genuine Toyota fuse or equivalent with


same amperage rating as original


ADDING WASHER FLUID Parts: D Water D Washer fluid containing antifreeze (for


winter use)


Tools: D Funnel REPLACING LIGHT BULBS Parts: D Bulb with same number and wattage rating as original in “Replacing light bulbs” on page 488 in Section 7−3.)


charts


(See


Tools: D Screwdriver D Wrench


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SECTION 7− 2


DO−IT−YOURSELF MAINTENANCE Engine and Chassis Checking the engine oil level Checking the engine coolant level Checking the radiator and condenser Checking brake fluid Checking power steering fluid Checking tire inflation pressure Checking and replacing tires Rotating tires Run−flat tires Installing snow tires and chains Replacing wheels Aluminum wheel precautions


. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


466
468
469
470
471
471
474
476
477
479
480
481


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Checking the engine oil level


Low level


Full level


Add oil


O.K.


Too full


With the engine at operating tempera- ture and turned off, check the oil level on the dipstick. 1. To get a correct reading, the vehicle should be on a level ground. After turn- ing off the engine, wait a few minutes for the oil to drain back into the bottom of the engine.


2. Pull the dipstick out, hold a rag under


the end and wipe it clean.


3. Reinsert the dipstick—push it in as far as it will go, or the reading will not be correct.


4. Pull the dipstick out and look at the oil the


level while holding a rag under end.


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CAUTION


NOTICE


z Be careful not to spill engine oil on


the vehicle components.


z Avoid overfilling, or


could be damaged.


the engine


z Check the oil level on the dipstick


once again after adding the oil.


Be careful not to touch the hot ex- haust manifold.


NOTICE


Be careful not to drop engine oil on the vehicle components.


If the oil level is below or only slightly above the low level, add engine oil of the same type as already in the engine. Remove the oil filler cap and add engine oil in small quantities at a time, checking the dipstick. We recommend that you use a funnel when adding oil. The approximate quantity of oil needed to raise the level between low and full on the dipstick is indicated below for reference. When the level reaches within the correct range, install the filler cap hand−tight. Oil quantity, L (qt., Imp. qt.):


1.5 (1.6, 1.3)


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is not available, SAE If SAE 5W−30 10W−30 may be used. However, it should be replaced with SAE 5W−30 at the next oil change.


Engine oil selection “Toyota Genuine Motor Oil” in your Toyota vehicle. Use Toyota approved “Toyota Genuine Motor Oil” or equivalent to grade and viscosity. Oil grade:


following


is used


satisfy


the


API grade SL “Energy−Conserving” or ILSAC multigrade engine oil


Recommended viscosity:


SAE 5W−30


Outside temperature


SAE 5W−30 is the best choice for good fuel economy and good starting in cold weather.


API service symbol


ILSAC certification mark


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Oil identification marks Either or both API registered marks are added to some oil containers to help you select the oil you should use. The API Service Symbol is located any- where on the outside of the container. The top portion of the label shows the oil quality by API (American Petroleum Insti- tute) designations such as SL. The center portion of the label shows the SAE viscos- ity grade such as SAE 5W−30. “Energy− Conserving” shown in the lower portion, indicates that the oil has fuel−saving ca- pabilities. The ILSAC (International Lubricant Stan- dardization and Approval Committee) Certi- fication Mark is displayed on the front of the container.


468


To ensure excellent lubrication perfor- mance for your engine, “Toyota Genuine Motor Oil” is available, which has been specifically for all Toyota engines. Please contact your Toyota dealer for fur- ther details about “Toyota Genuine Motor Oil”.


tested and approved


(For


the coolant


Checking the engine coolant level Look at the see−through coolant reser- voir when the engine is cold. The cool- ant level is satisfactory if it is between the “FULL” and “LOW” lines on the reservoir. If the level is low, add the coolant. type, see “Coolant type selection” described be- low.) The coolant level in the reservoir will vary with engine temperature. However, if the level is on or below the “LOW” line, add coolant. Bring the level up to the “FULL” line. If the coolant level drops within a short time after replenishing, there may be a leak the radiator, hoses, engine coolant filler cap, radiator cap and drain cock and water pump. If you can find no leak, have your Toyota dealer test the cap pressure and check for leaks in the cooling system.


the system. Visually check


in


CAUTION


To prevent burning yourself, do not remove the radiator cap when the en- gine is hot.


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is a


hybrid


organic


long−life


improper coolants may damage


Coolant type selection Use of your engine cooling system. Only use “Toyota Super Long Life Coolant” or similar high quality ethylene glycol based non−silicate, non−amine, non−nitrite, and non−borate coolant with long−life technology. (Coolant hybrid organic acid acid with technology low phosphates and organic acids.) For the U.S.A.—“Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deionized water. This coolant pro- vides protection down to about −35_C (−31_F). For Canada—“Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45% deionized water. This coolant pro- vides protection down to about −42_C (−44_F).


combination of


NOTICE


Do not use plain water alone.


Toyota recommends “Toyota Super Long Life Coolant”, which has been tested to ensure that it will not cause corrosion nor result in malfunction of your engine coolant system with proper usage. “Toyota formulated Super Long Life Coolant” with acid technology and has been specifically designed to avoid engine cooling system malfunction on Toyota vehicles. Please contact your Toyota dealer further details.


is organic


long−life


hybrid


for


Checking the radiator and condenser If any of the above parts are extremely dirty or you are not sure of their condi- tion, take your vehicle to a Toyota dealer.


CAUTION


To prevent burning yourself, be care- ful not to touch the radiator or con- denser when the engine is hot.


NOTICE


To prevent damage to the radiator and condenser, do not perform the work by yourself.


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If the level is low, add SAE J1703 or FMVSS No.116 DOT 3 brake fluid to the brake reservoir. Remove and replace the reservoir cap by hand. Fill the brake fluid to the dotted line. This brings the fluid to the correct level when you put the cap back on. Use only newly opened brake fluid. Once opened, brake fluid absorbs moisture from the air, and excess moisture can cause a dangerous loss of braking. When the brake fluid must be replaced, contact your Toyota dealer.


CAUTION


Take care when filling the reservoir because brake fluid can harm your hands or eyes. If fluid gets on your hands or in your eyes, flush the af- fected area with clean water immedi- ately. If you still feel uncomfortable with your hands or eyes, go to the doctor.


Checking brake fluid


reservoir. The


To check the fluid level, simply look at the see−through level should be between the “MAX” and “MIN” lines on the reservoir. It is normal for the brake fluid level to go down slightly as the brake pads wear. So be sure to keep the reservoir filled. If the reservoir needs frequent refilling, it may indicate a serious mechanical prob- lem.


470


NOTICE


If you spill some of the fluid, be sure to wipe it off to prevent it from dam- aging the parts or paintwork.


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Checking power steering fluid


If cold O.K.


Close


If hot O.K.


Open


If cold add


If hot add


III.


Check the fluid level through the reser- voir. If necessary, add automatic trans- mission fluid DEXRONrII or If the vehicle has been driven around 80
km/h (50 mph) for 20 minutes (a little more in frigid temperatures), the fluid is hot (60_C—80_C or 140_F—175_F). You may also check the level when the fluid is temperature, 10_C—30_C or 50_F—85_F) if the engine has not been run for about five hours.


(about


room


cold


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Checking tire inflation pressure


Clean all dirt from the outside of the res- ervoir tank and look at the fluid level. If the fluid is cold, the level should be in the “COLD” range. Similarly, if it is hot, the fluid level should be in the “HOT” range. If the level is at the low side of either range, add automatic fluid DEXRONrII or III to bring the level within the range. To remove the reservoir cap, turn it coun- terclockwise and it, turn it clockwise. After replacing the reser- voir cap, visually check the steering box case, vane pump and hose connections for leaks or damage.


lift up. To reinstall


transmission


CAUTION


The reservoir tank may be hot so be careful not to burn yourself.


NOTICE


Avoid overfilling, or the power steer- ing could be damaged.


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Keep your tire inflation pressures at the proper level. The recommended cold tire inflation pressures, tire sizes and the com- bined weight of occupants and cargo (vehicle capacity weight) are de- scribed on page 496 and 499. They are also on the tire and loading infor- mation label. You should check the tire inflation pressure every two weeks, or at least once a month. And do not forget the spare!


472


should


pressure


following


instructions


The for checking tire inflation pressure should be observed: D The


be checked only when the tires are cold. If your vehicle has been parked for at least 3 hours and has not been driven for more than 1.5
km or 1 mile since, you will get an accurate cold tire inflation pres- sure reading.


D Always use a tire pressure gauge. The appearance of a tire can be misleading. Besides, tire inflation pressures that are even just a few pounds off can degrade ride and handling.


D Take special care when adding air to the compact spare tire. The smaller tire size can gain pressure very quickly. Add com- pressed air in small quantities and check the pressure often until it reaches the specified pressure.


D Do not bleed or reduce tire inflation pressure after driving. It is normal for the tire inflation pressure to be higher after driving. D Never exceed the vehicle capac- ity weight. Passenger and lug- gage weight should be located so that the vehicle is balanced.


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Tire pressure gauge


INSPECTION AND ADJUSTMENT PROCEDURE 1. Remove the tire valve cap. 2. Press the tip of the tire pressure


gauge to the tire valve.


3. Read the pressure using the grad-


uations of the gauge.


4. In case the tire inflation pressure is not within the prescribed range, insert the compressed air from the valve. In case of applying too much air, press the center of the valve and release the air to adjust.


5. After completing the tire inflation pressure measurement and ad- justment, apply soapy water to the valve and check for leakage.


6. Install the tire valve cap. If a gauge and air pump are not avail- able, have your vehicle checked by your Toyota dealer.


CAUTION


Be sure to reinstall the tire valve caps. Without the valve caps, dirt or moisture could get into the valve core and cause air leakage. If the caps have been lost, have new ones put on as soon as pos- sible.


Incorrect tire inflation pressure may waste fuel, reduce the comfort of driv- ing, reduce tire life and make your ve- hicle less safe to drive. If a tire frequently needs refilling, have it checked by your Toyota deal- er.


CAUTION


Keep your tires properly inflated. Otherwise, the following condi- tions may occur and cause an ac- cident resulting in death or seri- ous injuries. Low tire pressure (underinfla- tion)— D Excessive wear D Uneven wear D Poor handling D Possibility of blowouts from an


overheated tire


D Poor sealing of the tire bead D Wheel deformation and/or tire


separation


D A greater possibility of tire


damage from road hazards


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Checking and replacing tires


Tread wear indicator


High tire pressure (overinfla- tion)— D Poor handling D Excessive wear D Uneven wear D A greater possibility of tire


damage from road hazards


CHECKING YOUR TIRES Check the tire’s tread for tread wear indicators. If the indicators show, replace the tires. The loca- tion of tread wear indicators is shown by the “TWI” or “Δ” marks, etc., molded on the sidewall of each tire.


474


The tires on your Toyota have built−in tread wear indicators to help you know when the tires need replace- ment. When the tread depth wears to 1.6 mm (0.06 in.) or less, the indica- tors will appear. If you can see the indicators in two or more adjacent grooves, the tire should be replaced. The lower the tread, the higher the risk of skidding. The effectiveness of snow tires is lost if the tread wears down below 4 mm (0.16 in.). If you have tire damage such as cuts, splits, cracks deep enough to expose the fabric, or bulges indi- cating internal damage, the tire should be replaced. If a tire often goes flat or cannot be properly repaired due to the size or location of a cut or other damage, it should be replaced. If you are not sure, consult with your Toyota dealer.


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If air loss occurs while driving, do not continue driving. Driving even a short distance can damage a tire beyond repair. Any tires which are over 6 years old must be checked by a qualified technician even if damage is not obvious. Tires deteriorate with age even if they have never or seldom been used. This applies also to the spare tire and tires stored for future use. REPLACING YOUR TIRES When replacing a tire, use a tire of the same size and construction, and the same or greater maximum load as the originally installed tires. Also, on all−wheel drive mod- els, all the tires must be the same brand and have the same tread pat- terns.


Using any other size or type of tire may seriously affect handling, ride, speedometer/odometer calibration, ground clearance, and clearance be- tween the body and tires or snow chains. Check that the maximum load of the replaced tire is greater than 1/2 of the Gross Axle Weight Ratings (GAWR) of either the front axle or the rear axle, whichever is greater. As for the maximum load of the tire, see the load limit at maximum cold tire inflation pressure mentioned on the sidewall of the tire, and as for the Gross Axle Weight Ratings (GAWR), see the Cer- tification Label. For details about the side wall of the tire and the Certification Label, see pages 386 and 388.


CAUTION


Observe the following instruc- tions. Otherwise, an accident may occur resulting in death or serious injuries.


D Do not mix radial, bias belted, or bias−ply tires on your ve- hicle, as this may cause dan- gerous handling characteris- tics resulting in loss of control. D Do not use tires other than the manufacturer’s recommended size, as this may cause danger- ous handling characteristics resulting in loss of control.


D All−wheel drive models:


Do not use tires of different brands, sizes, construction or tread patterns, as this may cause dangerous handling characteristics in loss of control.


resulting


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Rotating tires


Toyota recommends all four tires, or at least both of the front or rear tires be replaced at a time as a set. See “If you have a flat tire” on page 421 in Section 4 for tire change proce- dure. When a tire is replaced, the wheel should always be balanced. An unbalanced wheel may affect ve- hicle handling and tire life. Wheels can get out of balance with regular use and should therefore be balanced occasionally. When replacing a tubeless tire, the air valve should also be replaced with a new one. Initial adjustment of the tire pres- sure warning system is necessary after you have rotated your tires. See “Tire pressure warning sys- tem” on page 196 in Section 1−7.


476


To equalize the wear and help ex- tend tire life, Toyota recommends that you rotate your tires accord- ing to the maintenance schedule. (For scheduled maintenance infor- mation, please refer to the “Sched- uled Maintenance Guide” or “Own- er’s Supplement”.) However, the most appropriate tim- ing for tire rotation may vary ac- cording to your driving habits and road surface conditions. See “If you have a flat tire” on page 421 in Section 4 for tire change proce- dure.


Manual


When rotating tires, check for uneven wear and damage. Abnormal wear is usually caused by incorrect tire pres- sure, improper wheel alignment, out− of−balance wheels, or severe braking.


CAUTION


Do not include a compact spare tire when rotating the tires. It is designed for temporary use only.


Initial adjustment of the tire pres- sure warning system is necessary after you have rotated your tires. See “Tire pressure warning sys- tem” on page 196 in Section 1−7.


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Run−flat tires


Some vehicles are equipped with run−flat (RFT) tires. The run−flat tire allows you to continue driving for up to 160 km (100 miles) at a speed below 90 km/h (55 mph) even if any tire goes flat. However, in some conditions (such as high temperatures), you could not con- tinue driving for up to 160 km (100
miles). When the tire goes flat or when the tire pressure is below 100 kPa (1.0
kgf/cm2 or bar, 15 psi), the tire must be replaced. If you are not sure, consult your Toyota dealer. Do not use the repaired tire.


There is an “RFT” or “DSST” mark on the sidewall of the run−flat tire. If you cannot distinguish between the standard tire and run−flat tire, consult your Toyota dealer. The tire warranty book provides de- tailed information on the run−flat tires. For details, see the tire warranty book.


CAUTION


D Do not use non−genuine wheels, as this may cause dan- gerous handling characteris- tics resulting in loss of control. D Do not use the run−flat tires equipped on your vehicle on another model. These tires are especially for this model.


D Do not mix run−flat tires with


standard tires.


If the tire pressure warning light comes on: Decelerate at a speed below 90
km/h (55 mph), then adjust the tire pressure to the specified level as soon as possible. Do not drive more than 160 km (100 miles). D When the tire pressure is below 140 kPa (1.4 kgf/cm2 or bar, 20
psi), consult your Toyota deal- er. If the tire is flat or the tire pressure is below 100 kPa (1.0
kgf/cm2 or bar, 15 psi), the tire must be replaced. Do not use the repaired tire.


D When the tire pressure is 140
kPa (1.4 kgf/cm2 or bar, 20 psi) or more, adjust it to specified level. (See “Tires” on page 499
in Section 8.)


For details about the tire pressure warning system, see “Tire pressure warning system” on page 196 in Sec- tion 1−7.


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D Avoid abrupt steering wheel maneuvering and braking. If the vehicle tires deteriorate, you could lose control of the steering wheel or the brakes, causing death or serious inju- ry.


D Do not replace or repair the tire by yourself. When the tires must be replaced or repaired, consult your Toyota dealer or authorized tire dealer.


Vehicles with compact spare tire— When you replace tire, see “—Compact spare tire” through “—Af- ter changing wheels”, pages 423
through 435 in Section 4.


the


CAUTION


As the run−flat tire allows you to continue driving if any tire goes flat, the tire performance is not the same as normal condition. If the run−flat tire goes flat, take your vehicle to the nearest Toyo- ta dealer or authorized tire dealer as soon as possible, observing the following instructions: D Decelerate as soon as possible to lowest appropriate speed that conditions permit. Do not drive for longer than 160 km (100 miles) or over 90
km/h (55 mph).


the


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NOTICE


z Take due care not to go over a curb stone and be careful of the holes in the road be- cause deflated tire pressure affects tire cushion perfor- mance. The wheels, tires, body, suspension and other components could be dam- aged.


if


the


run−flat


z Your ground clearance is re- duced tire goes flat so avoid driving over obstacles and drive slowly on rough, unpaved roads and speed bumps. Also, do not attempt to go through an automatic car wash as the vehicle may get caught, resulting in damage.


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Installing snow tires and chains WHEN TO USE SNOW TIRES OR CHAINS Snow tires or chains are recommended when driving on snow or ice. On wet or dry roads, conventional tires provide better traction than snow tires. SNOW TIRE SELECTION If you need snow tires, select tires of the same size, construction and load capacity as the originally installed tires. Also, on all−wheel drive models, all the tires must be the same brand and have the same tread patterns. Do not use tires other than those men- tioned above. Do not install studded tires without first checking local regulations for possible restrictions.


CAUTION


the


following


Observe instructions. Otherwise, an accident may occur re- sulting in death or serious injuries. D Do not use snow tires other than the manufacturer’s recommended si- ze, as this may cause dangerous handling characteristics resulting in loss of control.


D All−wheel drive models:


Do not use snow tires of different brands, sizes, construction or tread patterns, as this may cause danger- ous handling characteristics result- ing in loss of control.


SNOW TIRE INSTALLATION Snow tires should be installed on all wheels. Installing snow tires on the front wheels only can lead to an excessive difference in road grip capability between the front and rear tires which could cause loss of vehicle control. When storing removed tires, you should store them in a cool dry place. Mark the direction of rotation and be sure to install them in the same direction when replac- ing.


CAUTION


D Do not drive with the snow tires


incorrectly inflated.


D Never drive over 120 km/h (75 mph)


with any type of snow tires.


D Vehicles with run−flat tires—Do not replace or repair the tire by your- self. When the tires must be re- repaired, consult your placed or Toyota dealer or authorized tire dealer.


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TIRE CHAIN SELECTION Use the tire chains of correct size and type. Use SAE Class “S” type radial tire chains except radial cable chains or V−bar type chains. Regulations regarding the use of tire chains vary according to location or type of road, so always check local reg- ulations before installing chains. CHAIN INSTALLATION Install the chains on the front tires as tightly as possible. Do not use tire tires. Retighten chains on chains after km (1/4—1/2 mile). When installing chains on your tires, care- fully follow the instructions of the chain manufacturer. If wheel covers are used, they will be scratched by the chain band, so remove the covers before putting on the chains.


rear driving


0.5—1.0


the


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CAUTION


D Do not exceed 50 km/h (30 mph) or recom- is


the chain manufacturer’s mended speed lower.


limit, whichever


D Drive carefully avoiding bumps, holes, and sharp turns, which may cause the vehicle to bounce.


D Avoid sharp turns or locked−wheel braking, as use of chains may ad- versely affect vehicle handling.


D When driving with chains installed, to drive carefully. Slow be sure down before entering curves to avoid losing control of the vehicle. Otherwise an accident may occur.


NOTICE


Do not attempt to use a tire chain on the compact spare tire, as it may re- sult in damage to the vehicle as well as the tire.


Replacing wheels WHEN TO REPLACE YOUR WHEELS If you have wheel damage such as bending, cracks or heavy corrosion, the wheel should be replaced. If you fail to replace a damaged wheel, the tire may slip off the wheel or cause loss of handling control. WHEEL SELECTION When replacing wheels, care should be taken to ensure that the wheels are re- placed by ones with the same load ca- pacity, diameter, rim width, and offset. This must be observed on compact spare tires, too. Correct replacement wheels are available at your Toyota dealer. A wheel of a different size or type may adversely affect handling, wheel and bear- ing life, brake cooling, speedometer/odom- eter calibration, stopping ability, headlight aim, bumper height, vehicle ground clear- ance, and tire or snow chain clearance to the body and chassis.


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Replacement with used wheels is not rec- ommended as they may have been sub- jected to rough treatment or high mileage and could fail without warning. Also, bent wheels which have been straightened may have structural damage and therefore should not be used. Never use an inner tube in a leaking wheel which is designed for a tubeless tire.


CAUTION


Initial adjustment of the tire pressure warning system is necessary after you have replaced your wheels. See “Tire pressure warning system” on page 196
in Section 1−7.


the


following


instructions. Observe Otherwise, an accident may occur re- sulting in death or serious injuries. D Do not use wheels other than the manufacturer’s recommended size, as this may cause dangerous han- dling characteristics in loss of control.


resulting


D All−wheel drive models:


Do not use wheels of different brands, sizes and types, as this may cause dangerous handling characteristics resulting in loss of control.


Aluminum wheel precautions D When aluminum wheels, check tight after driving your vehicle the first 1600
km (1000 miles).


the wheel nuts are


installing that


repaired, or D If you have changed your the wheel nuts are still tight after driving 1600 km (1000 miles).


rotated, tires, check


that


D When using tire chains, be careful not


to damage the aluminum wheels.


D Use only Toyota wheel nuts and for your aluminum


wrench designed wheels.


D When balancing your wheels, use only Toyota balance weights or equivalent and a plastic or rubber hammer.


D As with any wheel, periodically check your aluminum wheels for damage. If damaged, replace immediately.


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SECTION 7− 3


DO−IT−YOURSELF MAINTENANCE Electrical components Checking battery condition Battery recharging precautions Checking and replacing fuses Adding washer fluid Replacing light bulbs


. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


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485
486
487
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Checking battery condition— —Precautions


CAUTION


BATTERY PRECAUTIONS The battery produces flammable and explosive hydrogen gas. D Do not cause a spark from the bat-


tery with tools.


D Do not smoke or light a match near


the battery.


The electrolyte contains poisonous and corrosive sulfuric acid. D Avoid contact with eyes, skin or


clothes.


D Never ingest electrolyte. D Wear protective safety glasses when


working near the battery.


D Keep children away from the bat-


tery.


D If electrolyte gets on your skin, thoroughly wash the contact area. If you feel pain or burning, get medi- cal attention immediately.


D If electrolyte gets on your clothes, there is a possibility of its soaking through to your skin, so immediate- ly take off the exposed clothing and follow the procedure above, if nec- essary.


D If you accidentally swallow electro- lyte, drink a large quantity of water or milk. Follow with milk of magne- sia, beaten raw egg or vegetable oil. Then go immediately for emer- gency help.


EMERGENCY MEASURES D If electrolyte gets


in your eyes, flush your eyes with clean water immediately immediate medical attention. If possible, con- tinue to apply water with a sponge or cloth while en route to the medi- cal office.


and get


484


—Checking battery exterior


Terminals


Ground cable


Hold−down clamp


Check the battery for corroded or loose terminal connections, cracks, or loose hold−down clamp. a. If the battery is corroded, wash it off with a solution of warm water and bak- ing soda. Coat the outside of the termi- nals with grease to prevent further cor- rosion.


b. If the terminal connections are loose, their clamp nuts—but do not


tighten overtighten.


c. Tighten


the hold−down clamp only enough to keep the battery firmly in place. Overtightening may damage the battery case.


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—Checking battery condition


NOTICE


Type A


z Be sure the engine and all accesso- ries are off before performing main- tenance.


z When checking the battery, remove the ground cable from the negative terminal (“−” mark) first and rein- stall it last.


z Be careful not to cause a short cir-


cuit with tools.


z Take care no solution gets into the


battery when washing it.


the


If the battery is disconnected or run down, the power window, power sliding door, power back door and moon roof may not operate automatically and jam protection function will not function cor- rectly, and does not open the back door after you reconnect, replace or recharge the battery. In any of these cases, you should normalize each system. To normal- ize them, see “Power sliding doors” on page 33, “Power back door” on page 37, “Power windows” on page 42 and “Electric moon roof” on page 52 in Section 1−2.


Green


Dark


Clear or light yellow


Type B


Blue


White


Red


CHECKING BY INDICATOR Check the battery condition by the indi- cator color.


Indicator color


Type A


Type B


Green


Blue


Dark


White


Condition


Good


Charging necessary. Have battery checked by your Toyota dealer.


Battery recharging precautions During recharging, the battery is pro- ducing hydrogen gas. Therefore, before recharging: 1. If recharging with the battery installed on the vehicle, be sure to disconnect the ground cable.


2. Be sure the power switch on the re- charger the charger cables to the battery and when disconnecting them.


is off when connecting


CAUTION


D Always charge the battery in an un- confined area. Do not charge the battery in a garage or closed room where there is not sufficient ventila- tion.


D Only do a slow charge (5 A or less). Charging at a quicker rate is dangerous. The battery may ex- plode, causing personal injuries.


NOTICE


Clear or


light yellow


Red


Have battery checked by your Toyota dealer.


Never recharge the battery while the engine is running. Also, be sure all accessories are turned off.


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Checking and replacing fuses


Good


Blown


Type A


Type C


Good


Blown


Good


Blown


Good


Blown


Type D


Type B


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If the headlights or other electrical components do not work, check the fuses. If any of the fuses are blown, they must be replaced. See “Fuse locations” on page 459 in Sec- tion 7−1 for locations of the fuses. Turn the ignition switch and inoperative component off. Pull the suspected fuse straight out and check it. Determine which fuse may be causing the problem. The lid of the fuse box shows the name of the circuit for each fuse. See page 500 in Section 8 for the functions controlled by each circuit. Type C and D—When any of the fuses are blown, contact your Toyota dealer.


2005 SIENNA from Sep. ’04 Prod. (OM45431U)


Type A fuses can be pulled out by the pull−out tool. The location of the pull−out tool is shown in the illustration. If you are not sure whether the fuse has blown, try replacing the suspected fuse with one that you know is good. If the fuse has blown, push a new fuse into the clip. Only install a fuse with the amperage rat- ing designated on the fuse box lid. If you do not have a spare fuse, in an emergency you can pull out the “HTR” (10
A), “AC INV” or “RAD NO.1” fuse, which may be dispensable for normal driving, and use it if its amperage rating is the same. If you cannot use one of the same amper- age, use one that is lower, but as close to the rating as possible. If the amperage is fuse might blow out again but this does not indicate anything wrong. Be sure to get the correct fuse as soon as possible and return the substitute to its original clip. It is a good idea to purchase a set of spare fuses and keep them in your ve- hicle for emergencies.


that specified,


lower


than


the


05 SIENNA_U (L/O 0409)


the new


If fuse immediately blows out, there is a problem with the electrical sys- tem. Have your Toyota dealer correct it as soon as possible.


CAUTION


Never use a fuse with a higher am- perage rating, or any other object, in place of a fuse. This may cause ex- tensive damage and possibly a fire.


Adding washer fluid If any washer does not work or the low windshield washer fluid level warning light comes on, the washer tank may be empty. Add washer fluid. You may use plain water as washer fluid. However, in cold areas where tempera- tures range below the freezing point, use washer fluid containing antifreeze. This product is available at your Toyota dealer and most auto parts stores. Follow the manufacturer’s directions for how much to mix with water.


NOTICE


Do not use engine antifreeze or any other substitute because it may dam- age your vehicle’s paint.


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D Do not disassemble, repair or take apart the headlight bulbs, connec- tor, power supply circuits and ro- tated components. Or you may be injured by electric shocks. Call your dealer when the headlights fail to work or have to be replaced or dis- posed of.


NOTICE


Only use a bulb of the listed type.


the


The inside of the lens of exterior lights such as headlights may temporarily fog up when the lens becomes wet in the rain or in a car wash. This is not a problem because the is caused by fogging temperature difference between the outside and the windshield fogs up in the rain. However, if there large drop of water on the inside of the lens, or if there is water pooled light, contact your Toyota dealer.


inside of


inside


lens,


is a


just


like


the


the


following


illustrations show how


Replacing light bulbs— The to gain access to the bulbs. When replacing a bulb, make sure the ignition switch and light switch are off. Use bulbs with the wattage ratings given in the table.


CAUTION


D To prevent burning yourself, do not replace the light bulbs while they are hot.


D Halogen bulbs have pressurized gas inside and require special handling. They can burst or shatter if scratched or dropped. Hold a bulb only by its plastic or metal case. Do not touch the glass part of a bulb with bare hands.


D When replacing the rear light bulbs, turn off the power back door sys- tem to prevent an unexpected seri- ous injury.


Vehicles with discharge headlights— D Do not touch the high voltage sock- turns on. the headlight is momentarily generated injury by


et when 20000 V and may cause severe electric shock.


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A: D2R discharge bulbs B: HB4 halogen bulbs C: HB3 halogen bulbs D: H3 halogen bulbs E: Wedge base bulbs (clear) F: Wedge base bulbs (amber) G: Single end bulbs H: Double end bulbs


Light bulbs


Bulb No.


Headlights (low beam)


With discharge headlights Without discharge headlights


Headlights (high beam)


Front fog lights


Front turn signal lights

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