Lexus LS400 - Spark Plugs

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ENGINE

234

SPARK PLUGS

Your engine is fitted with iridium spark plugs.

NOTICE

Use only iridium spark plugs for your engine performance.

Table of Contents

Introduction3
Scrapping of Your Lexus3
Spark Ignition System of Your Lexus3
Table of Contents4
Gas Station Information5
Index5
Quick Index5
Safety Symbol5
Instrument Panel7
Pictorial Index8
Instrument Cluster9
Seat and Steering Wheel13
Exterior View14
Basic Operation16
Driver's Seat17
- Manual Head Restraint Type17
- Power Head Restraint Type17
- Steering Wheel18
  - Telescopic Steering Wheel18
  - Tilt Steering Wheel18
- Automatic Transmission19
- Operation of Selector Lever19
- Headlight and Turn Signal Switch20
- Wiper Switch21
- Selector Lever Position19
- Turn Signal Switch21
- Instruments and Controls22
Keys and Doors23
- Engine Immobiliser System25
- For Vehicles Sold in Canada26
- Wireless Remote Control26
- Doors33
- Headlight Switch37
Switches37
- Automatic Headlight Leveling System38
- Daytime Running Light System (Canada Only)38
- Headlight Dimmer and Turn Signal Switch39
- Fog Light Switch40
- Windshield Wiper and Washer Switch40
- Headlight Cleaner Switch42
- Rear Window and Outside Rear View Mirror Defogger Switch42
- Power Window Switches43
- Emergency Flasher Switch46
- Seat Heater Switches47
- Fuel Gauge49
Gauges, Meters and Service Reminder Indicators49
- Engine Coolant Temperature Gauge49
- Tachometer50
- Odometer and Trip Meter51
- Service Reminder Indicators and Warning Buzzers51
- Multi Information Display56
- Instrument Panel Light Control61
- Vanity Mirrors63
Low Washer Fluid61
Interior Equipment63
- Sun Visors63
- Front64
- Interior Lights64
- Rear64
- Ignition Switch Light65
- Personal Lights65
- Clock66
- Outside Temperature Display66
- Cigarette Lighter and Ashtray67
  - Front Cigarette Lighter and Ashtray67
  - Rear Cigarette Lighter and Ashtray67
- Power Outlet68
- Garage Door Opener69
- Glovebox69
  - Erasing the Garage Door Opener Memory70
  - Operating the Garage Door Opener70
- Cup Holder71
- Coin Box72
- Floor Mat73
- Penlight73
- Luggage Stowage Precautions74
- Hood77
Exterior Equipment77
- Trunk Lid78
- Trunk Lid Opener79
- Fuel Tank Cap80
- In Case the Opener Is Not Actuated81
- Moon Roof81
- Operating the Moon Roof from Outside the Vehicle82
- Front Seats85
Comfort Adjustment85
- Front Seat Precautions85
- Seat Adjustment Precautions85
- Adjusting Front Seats86
- Adjusting Seat Position86
- Adjusting Seat Cushion Angle and Height87
- Adjusting Seatback Angle87
- Adjusting Lumbar Support88
- Front Seats (Power Type)88
- Head Restraints88
  - Front and Outside Rear Seats (Manual Type)89
  - Center Rear Seat90
  - Adjustment of Steering Wheel Tilt91
  - Adjustment of Telescopic Steering Column91
- Tilt and Telescopic Steering Wheel91
- Auto Tilt Away92
- Outside Rear View Mirrors92
  - Power Rear View Mirror Control93
  - Folding Rear View Mirrors94
- Inside Rear View Mirror94
- Seat Belt Precautions95
- Seat Belts95
  - Fastening Front and Rear Seat Belts96
  - Front Seat Belt Buckle Illumination96
  - Seat Belt Extender99
  - Driver and Front Passenger Airbags101
  - Seat Belt Pretensioners101
- Supplemental Restraint System (SRS)101
- Side Airbags102
- Child Restraint113
  - Child Restraint Precautions113
  - Child Restraint System113
  - Types of Child Restraint System115
  - Booster Seat116
  - Convertible Seat116
  - Infant Seat Installation116
  - Installation with 3−Point Type Seat Belt116
  - Convertible Seat Installation120
  - Booster Seat Installation124
  - Top Strap Anchors and Locations126
- Driving Position Memory System128
  - Setting a Driving Position128
  - Activating a Memorized Position129
  - Conditions for Memorized Position Activation129
  - Activating the System132
  - Cancelling the System132
  - Setting the System132
  - Theft Deterrent System132
  - Testing the System133
  - Theft Prevention Labels134
  - Air Conditioning and Audio135
  - Automatic Air Conditioning Controls136
  - If Manual Fan Speed Control Is Desired141
  - If Manual Switching of Air Intake Is Desired141
  - If Quick Heating or Cooling Is Desired141
  - If Manual On−Off of the Air Conditioning Is Desired142
  - To Remove Frost or Exterior Fog on the Windshield143
  - To Remove Interior Fog on the Windshield143
  - Windshield Defogging and Defrosting143
  - Air Filter144
  - Center Vents145
  - Operating Tips145
  - Side Vents145
  - Lower Vent146
  - Rear Vents146
  - Audio System147
  - Quick Reference for Your Audio System147
  - Turning the System on and off149
  - Using Your Audio System: some Basics149
  - Tone and Balance150
  - Automatic Sound Levelizer151
  - Your Cassette Player151
  - Your Radio Antenna151
  - Listening to the Radio152
  - Radio Operation152
  - Your Automatic Changer152
  - Presetting a Station153
  - Manual Tuning154
  - Preset Tuning154
  - Seek Tuning154
  - Selecting a Station154
  - Auto−Reverse Feature155
  - Cassette Tape Player Operation155
  - Playing a Cassette Tape155
  - Automatic Program Selection156
  - Manual Program Selection156
  - "SCAN" Button157
  - Compact Disc Player Operation158
  - Inserting Compact Discs158
  - Playing a Compact Disc160
  - Searching for a Desired Track161
  - Selecting a Desired Disc161
  - Fast Forward Button162
  - Searching for a Desired Disc162
  - Selecting a Desired Track162
  - Track Button162
  - Car Audio System Operating Hints163
  - If the Player Malfunctions163
  - Other Compact Disc Player Functions163
  - RPT Button163
  - Am164
  - Fm164
  - Radio Reception164
  - Station Swapping164
  - Caring for Your Compact Disc Player and Discs165
  - Use High−Quality Cassettes165
- Starting and Driving170
- Three−Way Catalytic Converter170
- Engine Exhaust Caution171
- Before Starting the Engine172
- Ignition Switch with Steering Lock172
- Parking Brake173
- Before Cranking174
- How to Start the Engine174
- Normal Starting Procedure174
- Automatic Transmission175
  - Normal Driving176
  - Using Engine Braking178
  - Using the ”3”, ”2” and ”L” Positions179
  - Backing up180
  - Parking180
  - Good Driving Practice181
  - Rocking Your Vehicle if Stuck181
- Electronic Throttle Control System182
  - If the ”ECT PWR” Indicator Light Flashes182
  - If You Cannot Shift the Selector Lever182
- Cruise Control183
  - Snow Mode183
  - Cancelling the Preset Speed184
  - Setting at a Desired Speed184
  - Turning on the System184
  - Resetting to a Faster Speed185
  - Resetting to a Slower Speed185
  - Resuming the Preset Speed185
  - Cruise Control Failure Warning186
- Electronically Modulated Air Suspension186
  - Vehicle Height Adjustment186
  - Malfunction Warning187
  - ”HIGH” Mode187
  - ”NORMAL” Mode187
- Traction Control System188
- "Slip Indicator Light189
- Vehicle Skid Control System189
  - Initial Adjustment of Vehicle Skid Control System190
  - Vehicle Skid Control Failure Warning190
  - Brake Booster191
- Brake System191
  - Anti−Lock Brake System192
  - Brake Pad Wear Limit Warning Message193
  - Drum−In−Disc Type Parking Brake System193
  - All Season Tires194
  - Summer Tires194
- Types of Tires194
- Break−In Period196
- Driving Tips196
- Operation in Foreign Countries196
- Tips for Driving in Various Conditions196
- Winter Driving Tips197
- Trailer Towing198
  - Use a Washer Fluid Containing an Antifreeze Solution198
  - Weight Limits198
  - Break−In Schedule201
  - Maintenance201
  - Tires201
  - Trailer Lights201
  - Trailer Towing Tips202
  - When Restarting out after Parking on a Slope203
- How to Save Fuel and Make Your Vehicle Last Longer204
  - In Case of an Emergency207
  - If the Engine Is Not Turning over or Is Turning over too Slowly208
  - If Your Engine Stalls While Driving208
  - If Your Vehicle will Not Start208
  - Simple Checks208
  - Jump Starting209
  - Starting a Flooded Engine209
  - Jump Starting Procedure210
  - If Steam Is Coming from Your Engine211
  - If Your Vehicle Overheats211
  - When the Engine Overheats211
  - If You Have a Flat Tire212
  - Tie down Points221
  - Using a Flat Bed Truck221
  - Emergency Towing223
  - Towing with a Sling Type Truck223
  - If You Cannot Shift Automatic Transmission Selector Lever224
  - If You Lose Your Keys or Lock Yourself out225
  - General Maintenance228
  - Maintenance Requirements228
  - Scheduled Maintenance228
  - Where to Go for Service?228
  - Tire Pressure229
  - Tire Surface229
  - Vehicle Exterior229
  - What about Do−It−Yourself Maintenance?229
  - Doors and Engine Hood230
  - Fluid Leaks230
  - Seats230
  - Vehicle Interior230
  - Engine Compartment231
  - Engine Oil Level231
  - Exhaust System231
  - Power Steering Fluid Level231
  - Does Your Vehicle Need Repairing?232
  - Service Procedures and Specifications233
- Introduction234
- Vehicle Identification234
- Engine Compartment Overview235
- Do−It−Yourself Service Precautions236
  - Checking the Engine Coolant Level237
  - Checking the Engine Oil Level237
- Parts and Tools237
  - Checking Battery Condition238
  - Checking Brake Fluid238
  - Checking Power Steering Fluid238
  - Checking the Cartridge Type Fuses238
- Engine240
- Specifications240
- Fuel242
  - Fuel Type242
  - Gasolines Containing Detergent Additives242
  - Octane Rating242
  - Gasolines Containing Alcohol243
  - Gasolines Containing MMT243
  - Gasolines Containing MTBE243
  - Improved Gasolines243
  - Engine Oil Consumption244
- Facts about Engine Oil Consumption244
  - Functions of Engine Oil244
  - Importance of Engine Oil Level Check244
- Checking the Engine Oil Level245
- Used Engine Oil245
  - Engine Oil Selection247
  - Oil Identification Marks247
- Checking the Engine Coolant Level248
- Engine Coolant Selection248
- Spark Plugs249
- Specifications252
- Checking Brake Fluid254
- Checking Power Steering Fluid255
- Checking Tire Pressure256
- Rotating Tires257
- Checking and Replacing Tires258
  - When to Replace Your Tires258
  - Temperature259
  - Traction259
  - Treadwear259
  - Uniform Tire Quality Grading259
- Installing Snow Tires and Chains260
  - Snow Tire Selection260
  - Tire Selection260
  - When to Use Snow Tires or Chains260
  - Chain Installation261
  - Tire Chain Selection261
- Aluminum Wheel Precautions262
- Replacing Wheels262
- Suspension and Chassis262
  - Wheel Selection262
  - Fuse Locations264
  - Fuses264
- Specifications264
- Checking Battery Condition268
  - Checking by the Hydrometer271
  - Maintenance Type Battery271
  - Non−Maintenance Type Battery271
  - Adding Distilled Water272
- Battery Recharging Precautions272
- Checking and Replacing the Blade Type Fuses273
- Checking the Cartridge Type Fuses275
- Adding Washer Fluid276
- Before Checking the Headlight Aim276
- Checking the Headlight Aim276
  - Adjusting the Vertical Aiming277
  - Adjusting the Horizontal Aiming278
  - Horizontal Movement Gauge278
  - Light Location279
- Replacing Light Bulbs279
- Dimensions and Weight284
- Specifications284
- Protecting Your Vehicle from Corrosion285
- Hand−Washing Your Lexus286
- Washing and Waxing286
  - Washing Your Lexus286
  - Aluminum Wheels287
- Cleaning the Interior288
- Automatic Car Wash287
- Waxing Your Lexus287
- Leather Interior288
- Carpets, Windows and Seat Belts289
- Synthetic Leather Areas289
- Reporting Safety Defects291

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