Lexus GX470 2003 Owner Manual

SECTION 6 ± 2

SERVICE PROCEDURES AND

SPECIFICATIONS

Engine

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 411 Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 414 Fuel pump shut off system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 416 Facts about engine oil consumption . . . . . . . . . . . . . . . . . . . . . . . . 417 Used engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 418 Checking the engine oil level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 419 Checking the engine coolant level . . . . . . . . . . . . . . . . . . . . . . . . . . 422 Checking the radiator and condenser . . . . . . . . . . . . . . . . . . . . . . . 423 Spark plugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 424

410

ENGINE

SPECIFICATIONS

± GENERAL

Model	2UZ±FE
Type	8 cylinder V Type, 4 cycle, gasoline
Bore and stroke	94.0	X 84.0 mm (3.70 X 3.31 in.)
Displacement	4664 cm3 (284.6 cu.in.)
Valve clearance (engine cold)	0.15	± 0.25 mm (0.006 ± 0.010 in.)
Intake
Exhaust	0.25	± 0.35 mm (0.010 ± 0.014 in.)
Drive belt tension	Automatic adjustment

411

ENGINE

± LUBRICATION SYSTEM

Oil capacity
Drain and refill	6.2 L (6.5 qt., 5.5 lmp.qt.)
with filter
without filter	5.7 L (6.0 qt., 5.0 lmp.qt.)
Oil grade	API grade SL ªEnergy±Conservingº or ILSAC multigrade engine oil
Recommended oil viscosity (SAE):

Outside temperature

NOTE:

ªToyota Genuine Motor Oilº is filled in your Lexus vehicle. Use Lexus approved ªToyota Genuine Motor Oilº or equivalent to satisfy the above grade and viscosity. Please contact your Lexus dealer for further details.

412

ENGINE

± COOLING SYSTEM

Capacity	12.9 L (13.6 qt., 11.4 lmp.qt.)
Coolant type	ªToyota Genuine Long Life Coolantº or equivalent
	With ethylene±glycol type coolant for a proper corrosion
	protection of aluminum components
	Do not use alcohol type antifreeze or plain water alone.

NOTE:

ªToyota Genuine Long Life Coolantº is filled in your Lexus vehicle. In order to avoid technical problems, we strongly recommend using ªToyota Genuine Long Life Coolantº or equivalent. Please contact your Lexus dealer for further details.

± FUEL

Fuel type		Only UNLEADED
Octane rating		87 (Research octane number 91) or higher
± IGNITION SYSTEM
Spark plug	± Make	SK20R11
	DENSO
	NGK	IFR6A11
	± Gap	1.1 mm (0.043 in.)
± ELECTRICAL SYSTEM
Battery	Open voltage at 20 C (68 F):	12.6 ± 12.8 V	Fully charged
		12.2 ± 12.4 V	Half charged
		11.8 ± 12.0 V	Discharged
		[Voltage that is checked 20 minutes after the key is removed
		with all the lights turned off]
	Charging rates	5A max.

413

ENGINE

FUEL

Fuel type

Your vehicle must use only unleaded gasoline.

To help prevent gas station mixups, your Lexus has a smaller fuel tank opening. The special nozzle on pumps with unleaded fuel will fit it, but the larger standard nozzle on pumps with leaded gas will not.

At a minimum, the gasoline you use should meet the specifications of ASTM D4814 in the U.S.A. and CGSB 3.5±M93 in Canada.

NOTICE

Do not use leaded gasoline. Use of leaded gasoline will cause the three±way catalytic converter to lose its effectiveness and the emission control system to function improperly. Also, this can increase maintenance costs.

Octane rating

Select Octane Rating 87 (Research Octane Number 91) or higher. For improved vehicle performance, the use of premium unleaded gasoline with an Octane Rating of 91 (Research Octane Number 96) or higher is recommended.

Use of unleaded fuel with an octane number or rating lower than stated above will cause persistent heavy knocking. If severe, this will lead to engine damage.

If your engine knocks ...

If you detect heavy knocking even when using the recommended fuel, or if you hear steady knocking while holding a steady speed on level roads, consult your Lexus dealer.

However, occasionally, you may notice light knocking for a short time while accelerating or driving up hills. This is normal and there is no need for concern.

Gasoline containing detergent additives

Lexus recommends the use of gasoline that contains detergent additives to avoid build±up of engine deposits.

However, all gasoline sold in the U.S. contains detergent additives to keep clean and/or clean intake systems.

Quality gasoline

Automotive manufacturers in the U.S., Europe and Japan have developed a specification for quality fuel named World±Wide Fuel Charter (WWFC) that is expected to be applied world wide. The WWFC consists of three categories that depend on required emission levels. In the U.S., category 3 has been adopted. The WWFC improves air quality by providing for better emissions in vehicle fleets, and customer satisfaction through better vehicle performance.

414

ENGINE

Cleaner burning gasoline

Cleaner burning gasoline, including reformulated gasoline that contains oxygenates such as ethanol or MTBE is available in many areas.

Lexus recommends the use of cleaner burning gasoline and appropriately blended reformulated gasoline. These types of gasoline provide excellent vehicle performance, reduce vehicle emissions, and improve air quality.

Oxygenates in gasoline

Lexus allows the use of oxygenate blended gasoline where the oxygenate content is up to 10% ethanol or 15% MTBE. If you use gasohol in your Lexus, be sure that it has an octane rating no lower than 87.

Lexus does not recommend the use of gasoline containing methanol.

Gasoline containing MMT

Some gasoline contain an octane enhancing additive called MMT (Methylcyclopentadienyl Manganese Tricarbonyl).

Lexus does not recommend the use of gasoline that contains MMT. If fuel containing MMT is used, your emission control system may be adversely affected. The Malfunction Indicator Lamp on the instrument cluster may come on. If this happens, contact your Lexus dealer for service.

Gasoline quality

In a very few cases, you may experience driveability problems caused by the particular gasoline that you are using. If you continue to have unacceptable driveability, try changing gasoline brands. If this does not rectify your problem, then consult your Lexus dealer.

NOTICE

Do not use gasohol other than stated above. It will cause fuel system damage or vehicle performance problems.

If drivability problems are encountered (poor hot starting, vaporizing, engine knock, etc.), discontinue its use.

415

ENGINE

Take care not to spill gasohol during refueling. Gasohol may cause paint damage.

Fuel tank capacity

87 L (23 gal., 19.1 lmp.gal.)

FUEL PUMP SHUT OFF SYSTEM

The fuel pump shut off system stops supplying fuel to the engine to minimize the risk of fuel leakage when the engine stalls or an airbag inflates upon collision. To restart the engine after the fuel pump shut off system activates, turn the ignition switch to ªACCº or ªLOCKº once and start it.

CAUTION

Inspect the ground under the vehicle before restarting the engine. If you find that liquid has leaked onto the ground, it is the fuel system that has been damaged and it is in need of repair. In this case, do not restart the engine.

416

ENGINE

FACTS ABOUT ENGINE OIL

CONSUMPTION

Functions of engine oil

Engine oil has the primary function of lubricating and cooling the inside of the engine, and plays a major role in maintaining the engine in proper working order.

Engine oil consumption

It is normal that an engine should consume some engine oil during normal engine operation. The causes of oil consumption in a normal engine are as follows.

Oil is used to lubricate pistons, piston rings and cylinders. A thin film of oil is left on the cylinder wall when a piston moves downwards in the cylinder. High negative pressure generated when the vehicle is decelerating sucks some of this oil into the combustion chamber. This oil as well as some part of the oil film left on the cylinder wall is burned by the high temperature combustion gases during the combustion process.

Oil is also used to lubricate the stems of the intake valves. Some of this oil is sucked into the combustion chamber together with the intake air and is burned along with the fuel. High temperature exhaust gases also burn the oil used to lubricate the exhaust valve stems.

The amount of engine oil consumed depends on the viscosity of the oil, the quality of the oil and the way the vehicle is driven.

More oil is consumed by high±speed driving and frequent acceleration and deceleration.

A new engine consumes more oil, since its pistons, piston rings and cylinder walls have not become conditioned.

When judging the amount of oil consumption, keep in mind that the oil may have become diluted, making it difficult to judge the true level accurately.

For example, if a vehicle is used for repeated short trips and consumes a normal amount of oil, the dipstick may not show any drop in the oil level at all, even after 1000 km (600 miles) or more. This is because the oil is gradually becoming diluted with fuel or moisture, making it appear that the oil level has not changed.

The diluting ingredients evaporate out when the vehicle is then driven at high speeds, as on an expressway, making it appear that oil is excessively consumed after driving at high speeds.

417

ENGINE

Importance of engine oil level check

One of the most important points in proper vehicle maintenance is to keep the engine oil at the optimum level so that oil function will not be impaired. Therefore, it is essential that the oil level be checked regularly. Lexus recommends that the oil level be checked every time you refuel the vehicle.

NOTICE

Failure to check the oil level regularly could lead to serious engine trouble due to insufficient oil.

For detailed information on oil level check, see ªChecking the engine oil levelº described below.

USED ENGINE OIL

CAUTION

Used engine oil contains potentially harmful contaminants which may cause skin disorders such as inflammation or skin cancer, so care should be taken to avoid prolonged and repeated contact with it. To remove used engine oil from your skin, wash thoroughly with soap and water.

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

Do not leave used oil within the reach of children.

418

ENGINE

CHECKING THE ENGINE OIL LEVEL

With the engine at operating temperature and turned off, check the oil level on the dipstick.

1.To get a true reading, the vehicle should be on a level spot. After turning 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 and push it in as far as it will go, or the reading will not be correct.

1 Add oil

2 O.K.

3 Too full

4. Pull the dipstick out and look at the oil level while holding a rag under the end. If it is between the low level mark ( 4 ) and the full level mark ( 5 ), it is O.K.

NOTICE

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

419

ENGINE

If the oil level is below or only slightly above the low line, add engine oil of the same type as already in the engine.

Remove the oil filler cap and add engine oil a little at a time, checking the dipstick. We recommend that you use a funnel when adding oil. The approximate quantity of oil needed to fill between the low line and the full line on the dipstick is indicated below for reference.

When the level reaches within the correct range, return the filler cap and turn the cap clockwise until you hear a click.

Oil quantity. L (qt., lmp. qt.)

1.5 (1.6, 1.3)

NOTICE

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

Avoid overfilling, or the engine could be damaged.

Check the oil level on the dipstick once again after adding the oil.

Engine oil selection

ªToyotaGenuine Motor Oilº is filled in your Lexus vehicle. Use Lexus approved ªToyota Genuine Motor Oilº or equivalent to satisfy the following grade and viscosity.

Oil grade: API grade SL ªEnergy±Conservingº 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.

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

420

ENGINE

Oil identification marks

To ensure excellent lubrication performance for your engine, the ªToyota Genuine Motor Oilº range is available, which has been specifically tested and approved for all Lexus engines.

Please contact your Lexus dealer for further details of the ªToyota Genuine Motor Oilº range.

API Service Symbol

ILSAC Certification Mark

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 anywhere on the outside of the container.

The top portion of the label shows the oil quality by API (American Petroleum Institute) designation such as SL. The center portion of the label shows the SAE viscosity grade such as SAE 5W±30. ªEnergy±Conservingº, shown in the lower portion, indicates that the oil has fuel±saving capabilities.

The ILSAC (International Lubricant Standardization and Approval Committee) Certification Mark is displayed on the front of the container.

421

ENGINE

CHECKING THE ENGINE COOLANT

LEVEL

1 Reservoir cap 2 ªFº (upper) line 3 ªLº (lower) line

Look at the see±through coolant reservoir when the engine is cold. The coolant level is satisfactory if it is between theªFº and ªLº lines on the reservoir. If the level is low, add ethylene±glycol type coolant for a proper corrosion protection of aluminum components.

The coolant level in the reservoir will vary with engine temperature. However, if the level is on or below the ªLº line, add coolant. Bring the level up to the ªFº line.

Always use ethylene±glycol type coolant for a proper corrosion protection of aluminum components. See information in the next column.

If the coolant level drops within a short time after replenishing, there may be a leak in the system. Visually check the radiator, hoses, engine coolant filler cap, radiator cap and drain cock and water pump.

If you can find no leak, have your Lexus dealer test the radiator cap pressure and check for leaks in the cooling system.

CAUTION

To prevent burning yourself, do not remove the radiator cap when the engine is hot.

Coolant type selection

Use of improper coolants may damage your engine cooling system. Your coolant must contain ethylene±glycol type coolant for a proper corrosion protection of your engine that contains aluminum components. We have used ªToyota Genuine Long Life Coolantº in your Lexus vehicle. In order to avoid technical problems, we strongly recommend using ªToyota Genuine Long Life Coolantº or equivalent.

In addition to preventing freezing and subsequent damage to the engine, this type of coolant will also prevent corrosion. Further supplemental inhibitors or additives are neither needed nor recommended.

Read the coolant container for information on freeze protection. Follow the manufacturer's directions for how much to mix with plain water (preferably demineralized water or distilled water). The total capacity of the cooling system is given on page 413.

422

ENGINE

We recommend to use 50% solution for your Lexus, to provide protection down to about ±35 C (±31 F). When it is extremely cold, to provide protection down to about ±50 C (±58 F), 60% solution is recommended. Do not use more than 70% solution for better coolant performance.

NOTICE

Do not use alcohol type antifreeze or plain water alone.

The engine cooling system is integral to maximizing performance of your Lexus vehicle. In line with this, it is strongly recommended that you use ªToyota Genuine Long Life Coolantº for protecting the system, as it is an ethylene±glycol based premium antifreeze coolant with excellent corrosion protection properties that has been specifically formulated for use in Lexus vehicles.

Please contact your Lexus dealer for further details of the ªToyota Genuine Long Life Coolantº range.

CHECKING THE RADIATOR AND

CONDENSER

If either of the above parts are extremely dirty or you are not sure of their condition, take your vehicle to Lexus dealer.

CAUTION

To prevent burning yourself, be careful not to touch the radiator or condenser when the engine is hot.

NOTICE

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

423

ENGINE

SPARK PLUGS

Your engine is fitted with iridium±tipped spark plugs.

NOTICE

Use only iridium±tipped spark plugs and do not adjust gaps for your engine performance and smooth drivability.

424

ENGINE

425

SECTION 7

REPORTING SAFETY DEFECTS FOR U.S. OWNERS

Reporting safety defects for U.S. owners . . . . . . . . . . . . . . . . . . . . 469

468

KEYS AND DOORS

REPORTING SAFETY DEFECTS

FOR U.S. OWNERS

If you believe that your vehicle has a defect which could cause a crash or could cause injury or death, you should immediately inform the National Highway Traffic Safety Administration (NHTSA) in addition to notifying Toyota Motor Sales, U.S.A., Inc. (Toll±free: 1±800±25±LEXUS).

If NHTSA receives similar complaints, it may open an investigation, and if it finds that a safety defect exists in a group of vehicles, it may order a recall and remedy campaign. However, NHTSA cannot become involved in individual problems between you, your dealer, or Toyota Motor Sales, U.S.A., Inc.

To contact NHTSA, you may either call the Auto Safety Hotline toll±free at 1±800±424±9393 (or 366±0123 in Washington, D.C. area) or write to: NHTSA, U.S. Department of Transportation, Washington, D.C. 20590. You can also obtain other information about motor vehicle safety from the Hotline.

469

SECTION 6 ± 4

SERVICE PROCEDURES AND

SPECIFICATIONS

Electrical components

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 443 Checking battery condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 447 Battery recharging precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 450 Checking and replacing the blade type fuses . . . . . . . . . . . . . . . . 450 Checking the cartridge type fuses . . . . . . . . . . . . . . . . . . . . . . . . . . 453 Adding washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 454 Replacing light bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 455

442

ELECTRICAL COMPONENTS

SPECIFICATIONS

± FUSE LOCATIONS		± FUSES

1	Engine compartment
2	Driver's side instrument panel	Engine compartment

443

ELECTRICAL COMPONENTS

					No.	FUSE	AMPERE	CIRCUIT
					1	SPARE	10	Spare fuse
								Charging system and all
								components in ªAM1º,
						ALT	140	ªHEATERº, ªCDS FANº, ªFR
					2			FOGº, ªDEFOGº, ªAIR SUSº,
								ªAC115V INVº, ªSEAT HEATERº,
								ªBATT CHGº, ªBRAKE CTRLº
								and ªTOWINGº fuses
					3	SPARE	15	Spare fuse
					4	HEATER	50	Air conditioning system
	Driver's side instrument panel
					5	AIR	50	Rear height control air suspen-
						SUS		sion
								All components in ªACCº, ªCIGº,
					6	AM1	50	ªIG1º, ªFR WIP±WSHº, ªRR
								WIPº, ªRR WSHº, ªDIFFº,
								ªTEMSº and ªSTAº fuses
					7	BRAKE	30	Trailer brake controller
						CTRL
								All components in ªP FR P/Wº,
					8	J/B	50	ªP RR P/Wº, ªD RR P/Wº, ªD
								P/SEATº, ªP P/SEATº, ªTAILº,
								ªPANELº and ªPOWER OR
								TI&TEº fuses
					9	BATT	30	Trailer sub battery
						CHG
					10	TOWING	40	Trailer lights
					11	CDS FAN	20	Electric cooling fan
					12	RR A/C	30	Rear air conditioning system

444

ELECTRICAL COMPONENTS

	No.	FUSE	AMPERE	CIRCUIT
	13	MIR	10	Outside rear view mirror defog-
		HEATER		ger
				Stop lights, high mounted
				stoplight, shift lock control
				system, vehicle skid control
	14	STOP	10	system, electronic modulated
				suspension, rear height control
				air suspension, multiport fuel
				injection system/sequential
				multiport fuel injection system
	15	AC115V	15	Power outlet (115 VAC)
		INV
	16	FR FOG	15	Front fog lights
	17	OBD	7.5	On±board diagnosis system
	18	HEAD	10	Right±hand headlight (low beam)
		(LO RH)
	19	HEAD	10	Left±hand headlight (low beam)
		(LO LH)
	20	HEAD	10	Right±hand headlight (high
		(HI RH)		beam)
	21	HEAD	10	Left±hand headlight (high beam)
		(HI LH)
				Multiport fuel injection system/
	22	EFI NO.2	10	sequential multiport fuel injection
				system
	23	HEATER	7.5	Air conditioning system
		NO.2
	24	DEFOG	30	Rear window defogger

	No.	FUSE	AMPERE	CIRCUIT
	25	AIRSUS	10	Rear height control air suspen-
		NO.2		sion
	26	SEAT	20	Seat heaters
		HEATER
				Ignition switch light, interior
				lights, personal lights, foot
	27	DOME	10	lights, running board lights,
				door courtesy lights, inside
				door handle lights,
				multi±information display
	28	RADIO	20	Car audio system, navigation
		NO.1		system
				Multiplex communication
				system, vehicle skid control
				system, wireless remote
				control system, inside rear
	29	ECU±B	10	view mirror, air conditioning
				system, electronic modulated
				suspension, driving position
				memory system, power
				windows, moon roof
	30	ECU±B	10	Theft deterrent system
		NO.2
		ABS		Anti±lock brake system,
	31		40	vehicle skid control system,
		MTR		active traction control system,
				brake assist system
				Starting system, all components
	32	AM2	30	in ªIGNº, ªSRSº, ªGAUGEº and
				ªST2º fuses

445

ELECTRICAL COMPONENTS

	No.	FUSE	AMPERE	CIRCUIT
		ABS		Anti±lock brake system,
	33		50	vehicle skid control system,
		SOL		active traction control system,
				brake assist system
	34	ALT±S	7.5	Charging system
	35	MAYDAY	7.5	Lexus link system
	36	HORN	10	Horns
	37	TRN±HAZ	15	Turn signal lights
	38	ETCS	10	Electronic throttle control system
				Multiport fuel injection
	39	EFI	20	system/sequential multiport fuel
				injection system
	40	D FR P/W	20	Power window
	41	DR/LCK	25	Power door lock
	42	TOWING	30	Towing converter
	43	RADIO	30	Car audio system, navigation
		NO.2		system
				Multiport fuel injection
	44	IGN	10	system/sequential multiport fuel
				injection system, vehicle skid
				control system
	45	SRS	10	SRS airbag system
	46	GAUGE	7.5	Gauges and meters
				Multiport fuel injection
	47	ST2	7.5	system/sequential multiport fuel
				injection system

	No.	FUSE	AMPERE	CIRCUIT
	48	FR	30	Windshield wipers, windshield
		WIP±WSH		washer
	49	TEMS	20	Electronic modulated suspen-
				sion
	50	DIFF	20	Four±wheel drive system
	51	RR WIP	15	Rear window wiper
	52	D P/SEAT	30	Driver's power seats
	53	P P/SEAT	30	Front passenger's power seats
	54	PWR	15	Power outlet (12 VDC)
		OUTLET
	55	IG1 NO.2	10	Rear air conditioning system, in-
				side rear view mirror
	56	RR WSH	15	Rear window washer
				Shift lock control system, power
				windows, outside rear view
				mirror defogger, anti±lock brake
				system, active traction control
				system, vehicle skid control
	57	ECU±IG	10	system, air conditioning system,
				navigation system, power
				windows, moon roof, Lexus link
				system, tilt and telescopic
				steering, multi±information
				display, driving position
				memory system
				Air conditioning system, back±up
	58	IG1	10	lights, rear window defogger,
				seat heaters, vehicle skid control
				system

446

ELECTRICAL COMPONENTS

	No.	FUSE	AMPERE	CIRCUIT
				Multiport fuel injection
	59	STA	7.5	system/sequential multiport fuel
				injection system
	60	P FR P/W	20	Front passenger's power window
	61	P RR P/W	20	Rear right side power window
	62	D RR P/W	20	Rear left side power window
	63	PANEL	10	Instrument panel lights
	64	TAIL	10	Parking lights, tail lights, license
				plate lights, front fog lights
				Shift lock control system, power
				outlets, outside rear view
	65	ACC	7.5	mirrors, car audio system,
				navigation system, power rear
				view mirrors, multi±information
				display
	66	CIG	10	Cigarette lighter
	67	POWER	30	Power windows, moon roof, tilt
		OR TI&TE		and telescopic steering

CHECKING BATTERY CONDITION

Precautions

CAUTION

BATTERY PRECAUTIONS

The battery produces flammable and explosive hydrogen gas.

Do not cause a spark by contacting the battery terminals with tools.

Do not smoke or light a match near the battery.

The electrolyte contains poisonous and corrosive sulfuric acid.

Avoid contact with eyes, skin or clothes.

Never inhale or swallow electrolyte.

Wear protective safety glasses when working near the battery.

Keep children away from the battery.

EMERGENCY MEASURES

If electrolyte gets in your eyes, flush your eyes with clean water for at least 15 minutes and get immediate medical attention. If possible, continue to apply water with a sponge or cloth while traveling to the medical office.

447

ELECTRICAL COMPONENTS

If electrolyte gets on your skin, thoroughly wash the contacted area. If you feel a pain or burn, get medical attention immediately.

If electrolyte gets on your clothes, there is a possibility of its soaking through to your skin, so immediately take off the exposed clothing and follow the procedure above, if necessary.

If you accidentally to swallow electrolyte, drink a large quantity of water or milk. Follow with milk of magnesia, beaten raw egg or vegetable oil. Then go immediately for emergency help.

Warning: Battery posts, terminals and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and reproductive harm. Wash hands after handling.

Checking battery exterior

1 Terminals 2 Hold±down clamp

Check the battery for corroded or loose connections, cracks, or loose hold±down clamps.

1.If the battery is corroded, wash it off with a solution of warm water and baking soda. Coat the terminals with grease to prevent further corrosion.

2.If the connections are loose, tighten the clamp bolts ± but do not overtighten.

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

448

ELECTRICAL COMPONENTS

NOTICE

Make sure the engine and all accessories are turned off before performing maintenance.

When checking the battery, remove the ground cable first and reinstall it last.

Be careful not to cause a short circuit with tools.

Take care no solution gets into the battery when washing it.

If the battery is disconnected or run down

The power windows and moon roof may not operate automatically and the jam protection function will not function correctly after you reconnect, replace or recharge the battery. In any of these cases, you should normalize the power windows and moon roof. To normalize the power windows and moon roof, see pages 35 and 88.

Checking battery condition

Check the battery condition by the indicator color.

1BLUE ± Good condition.

2WHITE ± Charging necessary. Have the battery checked by your Lexus dealer.

3RED ± Have the battery checked by your Lexus dealer.

NOTICE

Do not refill the battery with water.

449

ELECTRICAL COMPONENTS

BATTERY RECHARGING

PRECAUTIONS

During recharging, the battery is producing hydrogen gas.

Therefore, before recharging:

1.If recharging with the battery installed on the vehicle, be sure to disconnect the ground cable.

2.Make sure the power switch on the recharger is off when connecting the charger cables to the battery and when disconnecting them.

CAUTION

Always charge the battery in an unconfined area. Do not charge the battery in a garage or closed room where there is not sufficient ventilation.

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

NOTICE

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

CHECKING AND REPLACING THE

BLADE TYPE FUSES

The engine compartment fuse box is located under the left side engine compartment cover. Before checking the engine compartment fuses, remove the cover. (For details, see ªRemoving the engine compartment coversº on page 405.)

Engine compartment

1 Pull±out tool 2 Spare fuses

450

ELECTRICAL COMPONENTS

Driver's side instrument panel

1. Turn the ignition switch off and open the fuse box lid.

Determine which fuse may be causing the problem. The lid of the fuse box shows the name of the circuit for each fuse.

2. Make sure the inoperative component is turned off. Pull the suspected fuse straight out with the pull±out tool and check it. If it has blown, push a new fuse into the clips.

451

ELECTRICAL COMPONENTS

Good

Blown

a.Look carefully at the fuse. If the thin wire is broken, the fuse has blown. If you are not sure or if it is too dark to see, try replacing the suspected fuse with one of the same value that you know is good.

b.Only install a fuse with the amperage rating designated on the fuse box lid.

If you do not have a spare fuse, in an emergency you can pull out the ªCIGº, ªRADIO NO.1º or ªSEAT HEATERº 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 amperage, use one lower than, but as close as possible to, the amperage. If the amperage is lower than that specified, the 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 clips.

It is a good idea to purchase a set of spare fuses and keep them in your vehicle for emergencies.

If the new fuse immediately blows out, there is a problem with the electrical system. Have your Lexus dealer correct it as soon as possible.

CAUTION

Never use a fuse with a higher amperage rating, or any other object, in place of a fuse. This may cause extensive damage and possibly a fire.

452

ELECTRICAL COMPONENTS

CHECKING THE CARTRIDGE TYPE

FUSES

The engine compartment fuse box is located under the left side engine compartment cover. Before checking the engine compartment fuses, remove the cover. (For details, see ªRemoving the engine compartment coversº on page 405.)

Driver's side instrument panel

Engine compartment

Good

Blown

453