lexus LS400 1998 Electrical Components / LEXUS 1998 LS400 OWNER'S MANUAL (OM50498U)

1998 Lexus Owner’s Manual
LS400 (U)

FOREWORD
i
Welcome to the growing group of valueconscious
people who drive Lexus vehicles. We are proud
of the advanced engineering and quality construction of each vehicle we \
build.
This Owner’s Manual explains the features of your new Lexus. Please read it and fo\
llow the
instructions carefully so that you can enjoy many years of safe motoring.
When it comes to service, remember that your Lexus dealer knows your vehicle bes\
t and is interested
in your complete satisfaction. Your Lexus dealer will provide quality maintenance and any other
assistance you may require.
If there is not a Lexus dealer near you, or you need emergency assistance for any reason, please call
the following number:
U.S. OWNERS
 When traveling in the U.S. mainland or Canada:
Lexus Roadside Assistance 180025LEXUS (TollFree)
(18002553987)
 HAWAII:
Lexus Customer Service Assistance 180025LEXUS (TollFree)
(18002553987)
CANADIAN OWNERS
 Please refer to the separate ”Owner’s Guide” or ”Owner’s Manual Supplement”.
Please leave this Owner’s Manual in this vehicle at the time of resale. The next owner will need
this information also.
All information and specifications in this manual are current at the time of printing. However,
because of the Lexus policy of continual product improvement, we reserve the right to make
changes at any time without notice.
Please note that this manual applies to all models and explains all equipment, \
including options.
Therefore, you may find some explanations for equipment not installed on your vehi\
cle.

INTRODUCTION
ii
New vehicle warranty
Your new vehicle is covered by the following Lexus limited
warranties:
 New vehicle warranty
 Emission control systems warranty
 Others
For further information, please refer to the separate ”Owner’s
Guide”, ”Owner’s Manual Supplement” or ”Warranty Booklet”.
Your responsibility for maintenance
It is the owner’s responsibility to make sure the specified
maintenance is performed. Section 5 of this Owner’s Manual gives
details of these maintenance requirements. Included in Section 6 is
general maintenance. For sche duled maintenance information,
please refer to the separate ”Owner’s Manual
Supplement/Maintenance Schedule”.
Accessories, spare parts and modification of your
Lexus
A wide variety of nongenuine spare parts and accessories for Lexus
vehicles are currently available in the market. You should know that
Toyota does not warrant these products and is not responsible either
for their performance, repair or replacement, or for any damage they
may cause to, or adverse effect they may have on, your Lexus
vehicle.
This vehicle should not be m odified with nongenuine Lexus
products. Modification with nongenuine Lexus products could
affect its performance, safety or durability, and may even violate governmental regulations. In addition, damage or performance
problems
resulting from the modification may not be covered under
warranty.
Spark ignition system of your Lexus
The spark ignition system in your Lexus meets all requirements of
the Canadian InterferenceCausing Equipment Standard.
Installation of a mobile twoway radio system
As the installation of a mobile twoway radio system in your vehicle
could affect electronic systems such as the multiport fuel injection
system/sequential multiport fuel injection system, cruise control
system, antilock brake system and Supplemental Restraint System
(SRS), be sure to check with your Lexus dealer for precautionary
measures or special instructions regarding installation.
Scrapping of your Lexus
The Supplemental Restraint System (SRS) in your Lexus consists of
driver and front passenger airbag s, side airbags and seat belt
pretensioners. The SRS device contains explosive chemicals. If the
vehicle is scrapped with the airbags and seat belt pretensioners left
as they are, it may cause an accident such as a fire. Be sure to have
the SRS removed and disposed of by a qualified service shop or by
your Lexus dealer before you scrap your vehicle.

HOW TO USE THIS MANUAL
iii
HOW TO USE THIS MANUAL
The contents of this manual are explained briefly on this page to
help you make the best use of the manual. Please read this page
and the rest of the Owner’s Manual carefully to make sure you
fully understand the operation of your vehicle.
This will help you enjoy safe and comfortable driving.
TABLE OF CONTENTS
The table of contents and the pictorial index provide easy reference
to the appropriate pages.
BASIC OPERATION QUICK REFERENCE
Operation of basic equipment is briefly explained in an easily
understandable way for quick reference.
SECTION 1 INSTRUMENTS AND CONTROLS
The vehicle’s equipment is divided into the 7 groups listed below.
Use of the equipment is explained, including any points you should
pay particular attention to.
1. Keys and doors
2. Switches
3. Gauges, meters and service reminder indicators
4. Interior equipment
5. Exterior equipment
6. Comfort adjustment
7. Theft deterrent
SECTION 2 AIR CONDITIONING AND AUDIO
The features of the vehicle’s air conditioning and audio are explained
in detail. Be sure to read this section so that you can make full use
of them.
SECTION 3 STARTING AND DRIVING
Starting the engine, driving, stopping, operation of features af fecting
vehicle handling, hints on vehicle safety and safe driving techniques
are all explained. Please read ev erything in this section, and
remember drive safely!
SECTION 4 IN CASE OF AN EMERGENCY
This section explains what to do in the event of an urgent situation
such as the engine not starting or getting a flat tire, etc. If such a
problem occurs, check the contents of this Owner’s Manual and
follow the instructions given.
SECTION 5 MAINTENANCE
This section explains the impor tance of regular maintenance.
Regular and periodic inspection and maintenance of your Lexus will
help to keep your vehicle in its best condition.
SECTION 6 SERVICE PROCEDURES AND
SPECIFICATIONS
Simple maintenance procedure and service data are provided here
for your reference should you wi sh to perform inspection and
maintenance yourself.

HOW TO USE THIS MANUAL
iv
INDEX
The page number is listed for each item in the Owner’s Manual so
that you can rapidly find the item and page you are searching for.
GAS STATION INFORMATION
The information you need to know for appropriate servicing at the
gas station is provided here.
QUICK INDEX
This is designed so that you can quickly find the needed information
when an urgent situation arises.
Safety symbol
In this manual, you will also see a circle with a slash through it. This
means ”Do not”, ”Do not do this”, or ”Do not let this happen”\
.
Safety and vehicle damage warnings
In this manual you will see CAUTION and NOTICE warnings.
These are used in the following ways:
CAUTION
This is a warning against something which may cause injury
to people if the warning is ignored . You are informed what you
must or must not do in order to avoid or reduce the risk to
yourself and other people.
NOTICE
This is a warning against something which may cause damage
to the vehicle or its equipment if the warning is ignored. You are
informed what you must or must not do in order to avoid or
reduce the risk of damage to your Lexus and its equipment.
Your Lexus Owner’s Manual provides you with a considerable
amount of information. To use this information most effectively,
please take the time to familiarize yourself with the contents and
use of the manual.

BASIC
OPERATION
SECTION 1
SECTION 2
SECTION 3
SECTION 4
SECTION 5
SECTION 6
SECTION 7
INDEX
TABLE OF CONTENTS
v
BASIC OPERATION QUICK REFERENCE1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 1 INSTRUMENTS AND Keys and doors7
. . . . . . . . . . . . . . . . . . . . . .
CONTROLS Switches21
. . . . . . . . . . . . . . . . . . . . . . . . .
Gauges, meters and service
reminder indicators
33
. . . . . . . . . . . . . . . . . .
\bInterior equipment47
. . . . . . . . . . . . . . . . . . .
Exterior equipment61
. . . . . . . . . . . . . . . . . .

Comfort adjustment69
. . . . . . . . . . . . . . . . . .
Theft deterrent116
. . . . . . . . . . . . . . . . . . . .
SECTION 2 AIR CONDITIONING AND AUDIO120
. . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 3 STARTING AND Starting and driving154
. . . . . . . . . . . . . . . . .
DRIVING Driving tips180
. . . . . . . . . . . . . . . . . . . . . .
SECTION 4 IN CASE OF AN EMERGENCY192
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 5 MAINTENANCE212
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . .
SECTION 6 SERVICE PROCEDURES Introduction218
. . . . . . . . . . . . . . . . . . . . . .
AND SPECIFICATIONS Engine224
. . . . . . . . . . . . . . . . . . . . . . . . . .
Chassis236
. . . . . . . . . . . . . . . . . . . . . . . . .
\bElectrical components248
. . . . . . . . . . . . . . .
Body268
. . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 7 REPORTING SAFETY DEFECTS FOR U.S. OWNERS276
. . . . . . .
INDEX277
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GAS STATION INFORMATION Inside back cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
QUICK INDEX Back cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . .

PICTORIAL INDEX
vi
INSTRUMENT PANEL
00L001-4

For detailed information, refer to the description given in each section.
PICTORIAL INDEX
vii
Page
1
Door lock switch and power window
switches 19, 28
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
2 Driving position memory switch 113
. . . . . . . . . . . . . . . . . .
3 Shoulder anchor control switch 83
. . . . . . . . . . . . . . . . . . . .
4 Power rear view mirror control switch 78
. . . . . . . . . . . . . .
5 Parking brake release lever 158
. . . . . . . . . . . . . . . . . . . . . .
6 Fuel filler door opener 65
. . . . . . . . . . . . . . . . . . . . . . . . . . .
7 Trunk lid opener 64
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8 Parking brake 158
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9 Headlight, turn signal and fog
light switch 22, 24, 25
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10 Windshield wiper and washer switch 25
. . . . . . . . . . . . . . . .
11 Multi information control switch 41
. . . . . . . . . . . . . . . . . . .
12 Cruise control switch 168
. . . . . . . . . . . . . . . . . . . . . . . . . . . Page
13 Outside temperature display
51
. . . . . . . . . . . . . . . . . . . . . . .
14 Clock 51
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . .
15 Emergency flasher switch 31
. . . . . . . . . . . . . . . . . . . . . . . .
16 Automatic air conditioning controls 121
. . . . . . . . . . . . . . .
17 Car audio 132
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
18 Vehicle skid control system off switch 173
. . . . . . . . . . . . . .
19 Headlight cleaner switch 27
. . . . . . . . . . . . . . . . . . . . . . . .
20 Seat heater switches 32
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
21 Ashtray 52
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . .
22 Height control switch 171
. . . . . . . . . . . . . . . . . . . . . . . . . . .
23 Driving pattern selector switch 160
. . . . . . . . . . . . . . . . . . .
24 Automatic transmission selector lever 160
. . . . . . . . . . . . . .
25 CD automatic changer 143
. . . . . . . . . . . . . . . . . . . . . . . . . .
26 Glovebox 54
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. .

PICTORIAL INDEX
viii
INSTRUMENT CLUSTER (Vehicles sold in U. S. A.)
00L0461

For detailed information, refer to the description given in each section.
PICTORIAL INDEX
ix
Page
1
Engine coolant temperature gauge 34
. . . . . . . . . . . . . . . . .
2 Tachometer 35
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
3 Turn signal indicator light 24
. . . . . . . . . . . . . . . . . . . . . . . .
4 Headlight indicator light 22
. . . . . . . . . . . . . . . . . . . . . . . . .
5 Headlight high beam indicator light 24
. . . . . . . . . . . . . . . .
6 Automatic transmission indicator lights 160
. . . . . . . . . . . .
7 Fuel gauge 34
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
8 Low fuel level warning light 40
. . . . . . . . . . . . . . . . . . . . . .
9 Cruise control indicator light 168
. . . . . . . . . . . . . . . . . . . . .
10 Height control indicator light 172
. . . . . . . . . . . . . . . . . . . .
11 Power mode indicator light 167
. . . . . . . . . . . . . . . . . . . . . .
12 Snow mode indicator light 167
. . . . . . . . . . . . . . . . . . . . . . .
13 Antilock brake system warning light 39
. . . . . . . . . . . . . . . Page
14 Vehicle skid control system off
indicator light 173
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15 Malfunction indicator lamp 39
. . . . . . . . . . . . . . . . . . . . . . .
16 Slip indicator light 173
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17 Multi information display 41
. . . . . . . . . . . . . . . . . . . . . . . .
18 Odometer and trip meter 36
. . . . . . . . . . . . . . . . . . . . . . . . .
19 Brake system warning light 37
. . . . . . . . . . . . . . . . . . . . . . .
20 SRS warning light 38
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
21 Open door warning light 39
. . . . . . . . . . . . . . . . . . . . . . . . .
22 Driver’s seat belt reminder light 38
. . . . . . . . . . . . . . . . . . .
23 Discharge warning light 39
. . . . . . . . . . . . . . . . . . . . . . . . . .
24 Instrument panel light control 46
. . . . . . . . . . . . . . . . . . . . .
25 ODO/TRIP RESET button 36
. . . . . . . . . . . . . . . . . . . . . . . .