358
SECTION 6 – 3
SERVICE PROCEDURES AND SPECIFICATIONS
Chassis
- Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........ 359
- Checking brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........ 362
- Checking power steering fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........

CHASSIS
SPECIFICATIONS
– DIFFERENTIAL
– TRANSFER
– AUTOMATIC TRANSMISSION
*Change automatic transmission fluid only as necessary. Generally, it is necessary to change automatic transmission fluid only if your vehicle is driven under one of the Special Operating Conditions listed in your “Owner’s Manual Supplement / Scheduled Maintenance”. When changing the automatic transmission fluid, use only “Toyota Genuine ATF Type T-IV” (ATF JWS3309 or NWS6500) to aid in assuring optimum transmission performance.
NOTICE
Using automatic transmission fluid other than Toyota Genuine ATF Type T-IV may cause deterioration in shift quality, locking up of your transmission accompanied by vibration, and ultimately damage the automatic transmission of your vehicle.
CHASSIS
– BRAKES
| Pedal clearance | 116 mm (4.57 in.) Min. *1 |
|---|---|
| Pedal free play | 1 – 6 mm (0.04 – 0.24 in.) |
| Brake pad wear limit | 1.0 mm (0.04 in.) |
| Parking brake lining wear limit | 1.0 mm (0.04 in.) |
| Parking brake adjustment | 4 – 6 clicks *2 |
| Fluid type | SAE J1703 or FMVSS No. 116 DOT 3 |
*1: Minimum pedal clearance when depressed with the force of 490 N (50 kgf, 110 lbf.) with the engine running
*2: Parking brake adjustment when pulled with the force of 196 N (20 kgf, 44 lbf.)
– CHASSIS LUBRICATION
| Wheel bearings | Lithium base wheel bearing grease, NLGI No.2 |
|---|---|
| Steering knuckles | Molybdenum–disulfide lithium base chassis grease, NLGI No.2 |
| Propeller shafts | Lithium base wheel bearing grease, NLGI No.2 |
– STEERING
| Free play | Less than 40 mm (1.6 in.) |
|---|---|
| Power steering fluid | Automatic transmission fluid DEXRON®II or III |
– SUSPENSION
| Fluid type | Suspension fluid AHC |
|---|
360
CHASSIS
– TIRES AND WHEELS
| Tire size | P275/60R18 111H |
|---|---|
| Tire inflation pressureRecommended cold tire inflation pressureNormal drivingTrailer towing | Front 200 kPa (2.0 kgf/cm² or bar, 29 psi)Rear 220 kPa (2.2 kgf/cm² or bar, 32 psi)Front 220 kPa (2.2 kgf/cm² or bar, 32 psi)Rear 240 kPa (2.4 kgf/cm² or bar, 35 psi) |
| Wheel size | 18 x 8 JJ |
| Wheel nut torque | 131 N·m (13.4 kgf·m, 97 ft·lbf.) |
NOTE:
For complete information on tires (e.g. replacing tires or replacing wheels), see “Checking tire pressure” through “Aluminum wheel precautions” on page 365 through 373.
361
CHASSIS
CHECKING BRAKE FLUID
To check the fluid level, simply look at the see-through reservoir. The level should be between the "MAX" and "MIN" lines on the tank.
It is normal for the brake fluid level to go down slightly as the brake pads wear or when the fluid level in the accumulator is high.
If the reservoir needs frequent refilling, it may indicate a serious mechanical problem.
If the level is low, add FMVSS No.116 DOT 3 or SAE J1703 brake fluid to the brake reservoir.
Refilling brake fluid:
- Turn the ignition switch off.
- Depress the brake pedal more than 40 times.
- Remove the reservoir cap by hand. Add brake fluid up to the "MAX" line.
If you do not follow the procedure above, the reservoir may overflow.
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 efficiency.
CAUTION Take care when filling the reservoir because brake fluid can harm your hands or eyes and damage painted surfaces. If fluid gets in your eyes, flush them with clean water immediately. If you still feel uncomfortable with your eyes, go to the doctor.
NOTICE If you spill some of the fluid, be sure to wipe it off to prevent it from damaging the parts or paintwork.
362
CHASSIS
CHECKING POWER STEERING FLUID

Check the fluid level on the dipstick. If necessary, add automatic transmission fluid DEXRON®II or III.
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 cold (about room temperature, 10°C – 30°C or 50°F – 85°F) if the engine has not been run for about five hours.

► 1 If hot O.K. 2 If hot add 3 If cold O.K. 4 If cold add
Clean all dirt off the reservoir 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 the appropriate range, add automatic transmission fluid DEXRON®II or III to bring the level within the range.
To remove the reservoir cap, turn it counterclockwise and lift up. To reinstall it, turn it clockwise. After replacing the reservoir cap, visually check the steering box case, vane pump and hose connections for leaks or damage.
⚠ CAUTION The reservoir may be hot so be careful not to burn yourself.
363

CHASSIS
NOTICE
- Avoid overfilling, or the power steering could be damaged.
- When adding the power steering fluid, avoid spilling it. The generator under the power steering reservoir could be damaged if fluid is spilled on it.
CHECKING SUSPENSION FLUID AHC

► 1 "MAX" line 2 "MIN" line
Under the unloaded condition, check the Suspension Fluid AHC in the following way.
- Start the engine and put the vehicle height in the "LO" (Low) mode and then "N" (Normal) mode.
- Turn off the ignition switch about 30 seconds after the "N" (Normal) mode indicator light comes on.
- Make sure the fluid level is between "MAX" and "MIN".
If the fluid level is lower than "MIN", have suspension fluid AHC filled by your Lexus dealer.
364
CHASSIS
NOTICE Only use the Suspension fluid AHC for the active height control suspension. If you fill other fluids such as brake fluid, power steering fluid, engine oil, etc., the active height control suspension could be damaged.
CHECKING TIRE PRESSURE

The recommended cold tire pressures, tire size and the vehicle capacity weight are given on the label.
You should check the tire pressure every two weeks, or at least once a month. And don't forget the spare! The pressure for the spare tire should be 220 kPa (2.2 kgf/cm² or bar, 32 psi).
Incorrect tire pressure may waste fuel, reduce the comfort of driving, reduce tire life and make your vehicle less safe to drive.
If a tire needs frequent refilling, have it checked by your Lexus dealer.
365
CHASSIS
CAUTION Keep your tire pressure properly inflated. Otherwise, the following conditions may occur and cause an accident resulting in death or serious injuries.
Low tire pressure (underinflation):
- Excessive wear
- Uneven wear
- Poor handling
- Possibility of blowouts from overheated tire.
- Poor sealing of the tire bead
- Wheel deformation and/or tire separation
High tire pressure (overinflation):
- Poor handling
- Excessive wear at the center of the tire tread
- A greater possibility of tire damage from road hazards
The following instructions for checking tire pressure should be observed:
- The pressure should 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 pressure reading.
- Always use a tire pressure gauge. The appearance of the tire can be misleading. Besides, tire pressures that are even just a few pounds off can degrade ride and handling.
- Do not bleed or reduce tire pressure after driving. It is normal for the tire pressure to be higher after driving.
- Never exceed the vehicle capacity weight. The passengers and luggage weight should be located so that the vehicle is balanced.
- 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 possible.
366
CHASSIS
ROTATING TIRES

To equalize tire wear and help extend tire life, Lexus recommends that you rotate your tires according to the maintenance schedule. (For scheduled maintenance information, please refer to the “Owner’s Manual Supplement / Scheduled Maintenance”. ) However, the most appropriate timing for tire rotation may vary according to your driving habits and road surface conditions.
The wheel assemblies must be rotated as illustrated above.
When rotating tires, check for uneven wear and damage. Abnormal wear is usually caused by incorrect tire pressure, improper wheel alignment, out-of-balance wheels, or severe braking.
Before storing radial, snow or studded tires, mark the direction of rotation and be sure to install them in the same direction when using them again. Tires should be stored in a cool dry place.
CHECKING AND REPLACING TIRES
When to replace your tires

1 New tread 2 Tread wear indicator 3 Worn tread
Replace the tires when the tread wear indicators show. The location of the tread wear indicators is shown by the marks molded on the sidewall of each tire.
The tires on your Lexus have built-in tread wear indicators to help you know when the tires need replacement. When the tread depth wears to 1.6 mm (0.06 in.) or less, the indicators will appear. If you can see the indicators in two or more adjacent grooves, the tire should be replaced.
367
CHASSIS
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 indicating 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 Lexus dealer.
If an air loss occurs while driving, do not continue driving with a deflated tire. 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 also applies to the spare tire and tires stored for future use.
Uniform tire quality grading
This information has been prepared in accordance with regulations issued by the National Highway Traffic Safety Administration of the U.S. Department of Transportation. It provides the purchasers and/or prospective purchasers of Lexus vehicles with information on uniform tire quality grading.
Your Lexus dealer will help answer any questions you may have as you read this information.
DOT quality grades – All passenger vehicle tires must conform to Federal Safety Requirements in addition to these grades. Quality grades can be found where applicable on the tire sidewall between tread shoulder and maximum section width. For example: Treadwear 200 Traction AA Temperature A
Treadwear – The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified government test course. For example, a tire graded 150 would wear one and a half (1 – 1/2) times as well on the government course as a tire graded 100. The relative performance of tires depends upon the actual conditions of their use, however, and may depart significantly from the norm due to variations in driving habits, service practices and differences in road characteristics and climate.
Traction AA, A, B, C – The traction grades, from highest to lowest, are AA, A, B and C, and they represent the tire’s ability to stop on wet pavement as measured under controlled conditions on specified government test surfaces of asphalt and concrete. A tire marked C may have poor traction performance.
368
CHASSIS
Warning: The traction grade assigned to this tire is based on braking (straight ahead) traction tests and does not include cornering (turning) traction.
Temperature A, B, C – The temperature grades are A (the highest), B, and C, representing the tire’s resistance to the generation of heat and its ability to dissipate heat when tested under controlled conditions on a specified indoor laboratory test wheel. Sustained high temperature can cause the material of the tire to degenerate and reduce tire life, and excessive temperature can lead to sudden tire failure. The grade C corresponds to a level of performance which all passenger car tires must meet under the Federal Motor Vehicle Safety Standard No. 109. Grades B and A represent higher levels of performance on the laboratory test wheel than the minimum required by law.
Warning: The temperature grades for this tire are established for a tire that is properly inflated and not overloaded. Excessive speed, underinflation, or excessive loading, either separately or in combination, can cause heat buildup and possible tire failure.
Tire selection
When replacing a tire, use a tire of the same size and construction, and the same or greater load capacity as the originally installed tires. Also, all the tires must be the same brand and have the same tread patterns.
Using any other size or type of tire may seriously affect handling, ride, speedometer/odometer calibration, ground clearance, and clearance between the body and tires or snow chains.
⚠ CAUTION Observe the following instructions. Otherwise, an accident may occur resulting in death or serious injuries.
• Do not mix radial, bias belted, or bias–ply tires on your vehicle, as this may cause dangerous handling characteristics resulting in loss of control.
• Do not use tires other than the manufacturer’s recommended size, as this may cause dangerous handling characteristics resulting in loss of control.
• Do not use tires of different brands, sizes, construction or tread patterns, as this may cause dangerous handling characteristics resulting in loss of control.
It can cause dangerous handling characteristics, resulting in loss of control. If you need to change from conventional tires to radial tires or vice versa, replace them as a set.
369

CHASSIS
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 or radial tires provide better traction than snow or studded 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, all the tires must be the same brand and have the same tread patterns.
Do not use tires other than stated above. Since your vehicle has radial tires as original equipment, make sure your snow tires also have radial construction. Do not install studded tires without first checking local regulations for possible restrictions.
CAUTION Observe the following instructions. Otherwise, an accident may occur resulting in death or serious injuries.
-
Do not use snow tires other than the manufacturer's recommended size, as this may cause dangerous handling characteristics resulting in loss of control.
-
Do not use snow tires of different brands, sizes, construction or tread patterns, as this may cause dangerous handling characteristics resulting in loss of control.
Snow tire installation
Snow tires should be installed on all wheels.
Installing snow tires on the rear 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.
CAUTION
- Do not drive with the snow tires incorrectly inflated.
- Never drive over 105 km/h (65 mph) with any type of snow tires.
370

Tire chain selection

▶ 1 Side chain 2 Cross chain
Use the tire chains of correct size.
For 275/60R18 tires, use the following type chains.
| A: Diameter of side chain | mm | (in.) |
|---|---|---|
| 3.5 | (0.14) | |
| B: Diameter of cross chain | 4.0 | (0.16) |
Regulations regarding the use of tire chains vary according to location or type of road. Always check the local regulations before installing chains.
NOTICE
If the wrong combination of tire and chain is used, the chains could damage the vehicle body.
Chain installation
Install the chains on the rear tires as tightly as possible. Do not use tire chains on the front tires. Retighten chains after driving 0.5 – 1.0 km (1/4 – 1/2 mile).
When installing chains on your tires, carefully follow the instructions of the chain manufacturer.
CAUTION
- Do not exceed 50 km/h (30 mph) or the chain manufacturer’s recommended speed limit, whichever is lower.
- Drive carefully avoiding bumps, holes, and sharp turns, which may cause the vehicle to bounce.
- Avoid sharp turns or locked-wheel braking, as use of chains may adversely affect vehicle handling.
- When driving with chains installed, be sure to drive carefully. Slow down before entering curves to avoid losing control of the vehicle. Otherwise an accident may occur.
CHASSIS
371
CHASSIS
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.
Replacement with used wheels is not recommended as they may have been subjected to rough treatment or high mileage and could fail without warning. Also, bent wheels which have been straightened may have hidden structural damage and therefore should not be used. Never use an inner tube in a leaking wheel which is designed for a tubeless tire.
Wheel selection
When replacing wheels, care should be taken to ensure that they are equivalent to those removed in load capacity, diameter, rim width, and offset.
Correct replacement wheels are available at your Lexus dealer.
A wheel of a different size or type may adversely affect handling, wheel and bearing life, brake cooling, speedometer/odometer calibration, stopping ability, headlight aim, bumper height, vehicle ground clearance, and tire or snow chain clearance to the body and chassis.
372
CAUTION
Observe the following instructions. Otherwise, an accident may occur resulting in death or serious injuries.
- Do not use wheels other than the manufacturer's recommended size, as this may cause dangerous handling characteristics resulting in loss of control.
- Do not use wheels of different brands, sizes and types, as this may cause dangerous handling characteristics resulting in loss of control.
CHASSIS
ALUMINUM WHEEL PRECAUTIONS
- When installing aluminum wheels, check that the wheel nuts are tight after driving your vehicle the first 1600 km (1000 miles).
- If you have rotated, repaired, or changed your tires, check that the wheel nuts are still tight after driving 1600 km (1000 miles).
- When using tire chains, be careful not to damage the aluminum wheels.
- Use only the Lexus wheel nuts and wrench designed for your aluminum wheels.
- When balancing your wheels, use only Lexus balance weights or equivalent and a plastic or rubber hammer.
- As with any wheel, periodically check your aluminum wheels for damage. If damaged, replace immediately.
SUSPENSION AND CHASSIS
! CAUTION
Do not modify the suspension/chassis with lift kits, spacers, springs, etc. It can cause dangerous handling characteristics, resulting in loss of control.
373
374
SECTION 6 – 4
SERVICE PROCEDURES AND SPECIFICATIONS
Electrical components
- Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........ 375
- Checking battery condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........ 379
- Battery recharging precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........

ELECTRICAL COMPONENTS
SPECIFICATIONS
– FUSE LOCATIONS

▶ 1 Engine compartment 2 Driver’s side kick panel 3 Passenger’s side kick panel
– FUSES

▶Engine compartment

▶Driver’s side kick panel
375
ELECTRICAL COMPONENTS

►Passenger’s side kick panel
\begin{tabular}{|l|l|l|l|} \hline No. & Fuse & AMPERE & CIRCUIT \ \hline 1 & ABS NO.2 & 40 & Anti-lock brake system \ \hline 2 & ABS NO.1 & 50 & Anti-lock brake system \ \hline 3 & AHC & 50 & Active height control suspension (AHC) \ \hline 4 & ST1 & 7.5 & Multiport fuel injection system/Sequential multiport fuel injection \ \hline 5 & TOWING & 30 & Trailer lights \ \hline 6 & MIR HTR & 15 & Outside rearview mirror defogger \ \hline 7 & RR HTR & 10 & Rear air conditioning system \ \hline 8 & HAZ-TRN & 15 & Emergency flashers, Turn signal lights \ \hline 9 & ALT-S & 7.5 & Charging system \ \hline 10 & NV-IR & 15 & Lexus night view system \ \hline 11 & FR FOG & 15 & Fog lights \ \hline 12 & TOWING BRK & 30 & Trailer lights \ \hline 13 & HEAD CLNER & 20 & Headlight cleaner \ \hline 14 & FR-IG & 10 & Charging system \ \hline 15 & PANEL & 7.5 & Instrument panel light \ \hline 16 & TOWING TAIL & 30 & Trailer lights \ \hline \end{tabular}
376
ELECTRICAL COMPONENTS
| No. | Fuse | AMPERE | CIRCUIT |
|---|---|---|---|
| 17 | TAIL | 15 | Parking lights, Tail lights |
| 18 | BAT | 30 | All components in “ECU–B2” |
| 19 | TEL | 7.5 | Lexus Link System |
| 20 | AMP | 30 | Audio system |
| 21 | EFI or ECD No.1 | 25 | Multiport fuel injection system/Sequential multiport fuel injection system |
| 22 | AM2 | 15 | All components in “IGN” |
| 23 | ETCS | 10 | Multiport fuel injection system/Sequential multiport fuel injection system |
| 24 | HORN | 10 | Horns |
| 25 | HEAD (RH–LWR) | 10 | Right–hand headlight (low beam) |
| 26 | HEAD (LH–LWR) | 10 | Left–hand headlight (low beam) |
| 27 | HEAD (RH–UPR) | 20 | Right–hand headlight (high beam) |
| 28 | HEAD (LH–UPR) | 20 | Left–hand headlight (high beam) |
| 29 | PWR OUTLET | 15 | Power outlets |
| 30 | CIG | 15 | Cigarette lighter |
| No. | Fuse | AMPERE | CIRCUIT |
|---|---|---|---|
| 31 | ACC | 7.5 | Instrument panel light |
| 32 | AM1 | 7.5 | Multiport fuel injection system/Sequential multiport fuel injection system |
| 33 | DEFOG | 20 | Rear window defogger |
| 34 | AHC–B | 15 | Active height control suspension (AHC) |
| 35 | FUEL HTR | 20 | Fuel heater |
| 36 | POWER HTR | 7.5 | Power heater |
| 37 | AHC–IG | 20 | Active height control suspension (AHC) |
| 38 | EFI or ECD No.2 | 10 | Emission control system |
| 39 | GAUGE 1 | 10 | Gauges and meters |
| 40 | ECU–IG 1 | 10 | Multiport fuel injection system/Sequential multiport fuel injection system |
| 41 | ECU–B1 | 10 | Navigation system |
| 42 | DBL LOCK | 15 | Double lock system |
| 43 | BATT CHARGE | 30 | Charging system |
| 44 | A/C | 15 | Air conditioning system |
| 45 | STOP | 15 | Stop lights |
377
ELECTRICAL COMPONENTS
| No. | Fuse | AMPERE | CIRCUIT |
|---|---|---|---|
| 46 | OBD-2 | 7.5 | On-board diagnosis system |
| 47 | IDLE UP | 7.5 | Idle-up system |
| 48 | LH SEAT | 30 | Power seat system |
| 49 | DOOR | 25 | Power door lock system, Power windows |
| 50 | SUN ROOF | 25 | Electronic moon roof |
| 51 | RR WIPER | 15 | Rear wiper system |
| 52 | ECU-B2 | 10 | Power door lock system, Power window |
| 53 | DIFF | 20 | Four-wheel drive system |
| 54 | WASHER | 15 | Windshield washer |
| 55 | RADIO | 10 | Audio system |
| 56 | DOME | 10 | Interior lights |
| 57 | VGRS | 40 | Variable gear ratio steering system |
| 58 | P/W (FL) | 20 | Power window |
| 59 | P/W (RL) | 20 | Power window |
| 60 | WIPER | 25 | Windshield wiper |
| 61 | ECU-IG 2 | 10 | Rear air conditioning system |
| No. | Fuse | AMPERE | CIRCUIT |
|---|---|---|---|
| 62 | SEAT HTR | 15 | Seat heater |
| 63 | GAUGE 2 | 10 | Back-up lights |
| 64 | MET | 7.5 | Gauges and meters |
| 65 | IGN | 7.5 | Multiport fuel injection system/Sequential multiport fuel injection system |
| 66 | SECURITY | 7.5 | Theft deterrent system |
| 67 | P/W (RR) | 20 | Power window |
| 68 | P/W (FR) | 20 | Power window |
| 69 | TIL & TEL | 20 | Tilt and telescopic steering |
| 70 | RR A/C | 30 | Rear air conditioning system |
| 71 | RH SEAT | 30 | Power seat system |
378
ELECTRICAL COMPONENTS
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.
- 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.
379

ELECTRICAL COMPONENTS
Checking battery exterior

▶ 1 Terminals 2 Hold-down clamp
Check the battery for corroded or loose connections, cracks, or loose hold-down clamps.
- 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.
- If the connections are loose, tighten the clamp bolts – but do not overtighten.
- Tighten the hold-down clamp only enough to keep the battery firmly in place. Overtightening may damage the battery case.
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 terminal is disconnected, the variable gear ratio steering system is reset temporarily and “VGRS” warning light flashes after you reconnect the battery terminal. In this case, you should turn off the light and return the system to normal. To return the system to normal, see “Variable gear ratio steering system” on page 264.
380
ELECTRICAL COMPONENTS
Checking battery condition
(a) Checking by fluid level lines

► 1 Upper line 2 Lower line
The fluid (electrolyte) level must be between the upper and lower lines.
When checking the fluid level, look at all six cells, not just one or two.
If the level is lower than the lower line, have the battery checked by your Lexus dealer.
(b) Checking by indicator

Check the battery condition by the indicator color.
1 BLUE – Good condition.
2 WHITE – Charging necessary. Have the battery checked by your Lexus dealer.
3 RED – Have the battery checked by your Lexus dealer.
NOTICE
Do not refill the battery with water.
381
ELECTRICAL COMPONENTS
BATTERY RECHARGING PRECAUTIONS
During recharging, the battery is producing hydrogen gas. Therefore, before recharging:
- If recharging with the battery installed on the vehicle, be sure to disconnect the ground cable.
- 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

►Engine compartment [1] Spare fuses [2] Pull-out tool

►Driver's side kick panel
382
ELECTRICAL COMPONENTS
►Passenger's side kick panel
- 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.
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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 "DOME" or "CIG" 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.
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ELECTRICAL COMPONENTS
CHECKING THE CARTRIDGE TYPE FUSES

►Engine compartment

►Good ►Blown
If the headlights or other electrical components do not work and the blade type fuses are O.K., check the cartridge type fuses. If any of the cartridge type fuses are blown, they must be replaced.
If there is an overload in the circuits from the battery, the fuses are designed to blow before the entire wiring harness is damaged.
NOTICE Before replacing the fuses, have the cause of electrical overload determined and repaired by your Lexus dealer.
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ELECTRICAL COMPONENTS
CAUTION Always use a genuine Lexus fuse or equivalent for replacement. Never install an ordinary wire – even for a temporary fix. This may cause extensive damage and possibly a fire.
ADDING WASHER FLUID

If the washer tank becomes nearly empty, add washer fluid.
You may use plain water as washer fluid. However, in cold areas where temperatures range below the freezing point, use washer fluid containing antifreeze. This product is available at your Lexus 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 damage your vehicle’s paint.
- Do not fill washer fluid over the "NORMAL" level.
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REPLACING LIGHT BULBS
The illustrations on the following pages show the locations of light bulbs. If it is necessary to replace a bulb, take your vehicle to your Lexus dealer as soon as possible. Use bulbs with the bulb numbers and wattage ratings given in the table.
CAUTION
- To prevent burning yourself, do not replace the light bulbs while they are hot.
- 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.
NOTICE
Only use a bulb of the listed type.
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 fogging is caused by the temperature difference between the outside and inside of the lens, just like the windshield fogged up in the rain. However, if there is a large drop of water on the inside of the lens, or if there is water pooled inside the light, contact your Lexus dealer.
ELECTRICAL COMPONENTS
LIGHT LOCATION

| Light Bulbs | Bulb No. | W | Type |
|---|---|---|---|
| [1] Headlights (High beam) | 9005 | 60 | A |
| [2] Headlights (Low beam) | 9006 | 55 | B |
| [3] Parking and front side marker lights | – | 5 | D |
| [4] Fog light | – | 55 | C |
| [5] Front turn signal lights | – | 21 | F |
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ELECTRICAL COMPONENTS

| Light Bulbs | Bulb No. | W | Type |
|---|---|---|---|
| [1] Rear turn signal lights | 7440 | 21 | D |
| [2] Stop/tail lights | 7443 | 21/5 | D |
| [3] Back-up lights | 7440 | 21 | D |
| [4] License plate lights | 168 | 5 | D |

| Light Bulbs | Bulb No. | W | Type |
|---|---|---|---|
| [1] Vanity light | – | 3 | E |
| [2] Personal light | – | 5 | F |
| [3] Personal light | – | 8 | E |
| Interior light | – | 8 | E |
| [4] Interior light | – | 8 | E |
| [5] Door courtesy light | – | 3 | D |
| [6] Glove box light | – | 1.4 | D |
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ELECTRICAL COMPONENTS
A: HB3 halogen bulbs B: H1 halogen bulbs C: H3 halogen bulbs D: Wedge base bulbs E: Double end bulbs F: Single end bulbs
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