1999 Lexus LS400 cruise control

iiiThis vehicle should not be modified with non±genuine
Lexus products. Modification with non±genuine 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 Interference±Causing
Equipment Standard.
Installation of a mobile two±way radio
system
As the installation of a mobile two±way radio system in
your
vehicle could affect electronic systems such as the
multiport fuel injection system/sequential multiport fuel
injection system, cruise control system, anti±lock 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 airbags,
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.

For detailed information, refer to the description given in each section\
.
PICTORIAL INDEX
ix
Page
1 Door lock switch and power windowswitches 32, 46 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Driving position memory switch 203
. . . . . . . . .
3 Shoulder anchor control switch 147
. . . . . . . . .
4 Power rear view mirror control switch 134 . . .
5 Parking brake release lever 279
. . . . . . . . . . . . .
6 Fuel filler door opener 110
. . . . . . . . . . . . . . . . . .
7 Trunk lid opener 109
. . . . . . . . . . . . . . . . . . . . . . .
8 Parking brake 279
. . . . . . . . . . . . . . . . . . . . . . . . .
9 Headlight, turn signal and fog
light switch 35, 38, 41 . . . . . . . . . . . . . . . . . . . . . .
10 Windshield wiper and washer switch 41 . . . . .
11 Multi information control switch 70
. . . . . . . . . .
12 Cruise control switch 297
. . . . . . . . . . . . . . . . . . Page
13 Outside temperature display
88
. . . . . . . . . . . . .
14 Clock 87
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15 Emergency flasher switch 52
. . . . . . . . . . . . . . .
16 Automatic air conditioning controls 215 . . . . .
17 Car audio 233
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18 Vehicle skid control system off switch 304 . . .
19 Headlight cleaner switch 44
. . . . . . . . . . . . . . . .
20 Seat heater switches 53
. . . . . . . . . . . . . . . . . . . .
21 Ashtray 89
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22 Height control switch 301
. . . . . . . . . . . . . . . . . .
23 Driving pattern selector switch 281
. . . . . . . . . .
24 Automatic transmission selector lever 281 . . .
25 CD automatic changer 254
. . . . . . . . . . . . . . . . . .
26 Glove box 92
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

For detailed information, refer to the description given in each section\
.
PICTORIAL INDEX
xi
Page
1 Engine coolant temperature gauge 59. . . . . . .
2 Tachometer 60
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Turn signal indicator light 38
. . . . . . . . . . . . . . .
4 Headlight indicator light 35
. . . . . . . . . . . . . . . . .
5 Headlight high beam indicator light 38 . . . . . .
6 Automatic transmission indicator lights 281 .
7 Fuel gauge 57
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8 Low fuel level warning light 68
. . . . . . . . . . . . . .
9 Cruise control indicator light 297
. . . . . . . . . . .
10 Height control indicator light 304
. . . . . . . . . . .
11 Power mode indicator light 295
. . . . . . . . . . . . .
12 Snow mode indicator light 295
. . . . . . . . . . . . . .
13 Anti±lock brake system warning light 67 . . . . . Page
14 Vehicle skid control system off
indicator light 304 . . . . . . . . . . . . . . . . . . . . . . . . .
15 Malfunction indicator lamp 67
. . . . . . . . . . . . . .
16 Slip indicator light 304
. . . . . . . . . . . . . . . . . . . . .
17 Multi information display 70
. . . . . . . . . . . . . . . .
18 Odometer and trip meter 61
. . . . . . . . . . . . . . . .
19 Brake system warning light 64
. . . . . . . . . . . . . .
20 SRS warning light 66
. . . . . . . . . . . . . . . . . . . . . . .
21 Open door warning light 68
. . . . . . . . . . . . . . . . .
22 Driver's seat belt reminder light 66
. . . . . . . . . .
23 Discharge warning light 67
. . . . . . . . . . . . . . . . .
24 Instrument panel light control 79
. . . . . . . . . . . .
25 ODO/TRIP RESET button 61
. . . . . . . . . . . . . . . .

For detailed information, refer to the description given in each section\
.
PICTORIAL INDEX
xiii
Page
1 Engine coolant temperature gauge 59. . . . . . .
2 Tachometer 60
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Turn signal indicator light 38
. . . . . . . . . . . . . . .
4 Tail light indicator light 35
. . . . . . . . . . . . . . . . . .
5 Headlight high beam indicator light 38 . . . . . .
6 Automatic transmission indicator lights 281 .
7 Fuel gauge 57
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8 Low fuel level warning light 68
. . . . . . . . . . . . . .
9 Cruise control indicator light 297
. . . . . . . . . . .
10 Power mode indicator light 295
. . . . . . . . . . . . .
11 Snow mode indicator light 295
. . . . . . . . . . . . . .
12 Anti±lock brake system warning light 67 . . . . . Page
13 Vehicle skid control system
off indicator light 304 . . . . . . . . . . . . . . . . . . . . . .
14 Malfunction indicator lamp 67
. . . . . . . . . . . . . .
15 Slip indicator light 304
. . . . . . . . . . . . . . . . . . . . .
16 Multi information display 70
. . . . . . . . . . . . . . . .
17 Odometer and trip meter 61
. . . . . . . . . . . . . . . .
18 Brake system warning light 64
. . . . . . . . . . . . . .
19 SRS warning light 66
. . . . . . . . . . . . . . . . . . . . . . .
20 Open door warning light 68
. . . . . . . . . . . . . . . . .
21 Driver's seat belt reminder light 66
. . . . . . . . . .
22 Discharge warning light 67
. . . . . . . . . . . . . . . . .
23 Instrument panel light control 79
. . . . . . . . . . . .
24 ODO/TRIP RESET button 79
. . . . . . . . . . . . . . . .

BASIC OPERATION ± QUICK REFERENCE
6*: When the cruise control is being used, even if you downshift from ºDº\
to º4º, engine braking will not be
applied because the cruise control is not cancelled. For the operation \
to decrease the vehicle speed,
see page 300.

SECTION 3 ± 1
271
STARTING AND DRIVING
Starting and driving
Three±way catalytic converter271
. . . . . . . . . . . . . . . . . .
Engine exhaust caution 274
. . . . . . . . . . . . . . . . . . . . . . . .
Before starting the engine 275
. . . . . . . . . . . . . . . . . . . . . .
Ignition switch with steering lock 276
. . . . . . . . . . . . . . . .
Parking brake 279
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How to start the engine 280
. . . . . . . . . . . . . . . . . . . . . . . .
Automatic transmission 281
. . . . . . . . . . . . . . . . . . . . . . . .
Electronic throttle control system 295
. . . . . . . . . . . . . . . .
Cruise control 297
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electronically modulated air suspension 301
. . . . . . . . . .
Traction control system 304
. . . . . . . . . . . . . . . . . . . . . . . .
Vehicle skid control system 307
. . . . . . . . . . . . . . . . . . . . .
Brake system 313
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Types of tires 319
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
THREE±WAY CATALYTIC
CONVERTER

STARTING AND DRIVING
283


The shift position is displayed on the instrument
cluster.
P: Parking, engine starting and key removal position
R: Reverse position
N: Neutral position
D: Normal driving position (Shifting into overdrive
possible)
4: Position for engine braking (Shifting into
overdrive not possible)
When the cruise control is being used, even if you
downshift from ºDº to º4º, engine braking will not
be applied because the cruise control is not
cancelled. For the operation to decrease the
vehicle speed, see page 300.
3, 2: Position for more powerful engine braking
L: Position for maximum engine braking Correct use of the automatic transmission is
explained in the following parts.
(a) Normal driving
(b) Using engine braking
(c) Using the º3º, º2º and ºLº positions
(d) Backing up
(e) Parking
(f) Good driving practice
(g) Rocking your vehicle if stuck
(h) If you cannot shift the selector lever

STARTING AND DRIVING
289
31L010a
To use the braking power of the engine, downshift the
transmission in the way described below:
1Shift into the º4º position. The transmission will
downshift to the fourth gear and engine braking will
be obtained.
When the cruise control is being used, even if you
downshift from ºDº to º4º, engine braking will not be
applied because the cruise control is not cancelled.
If you need to decrease the vehicle speed, see
page 300.
2 Shift into the º3º position. The transmission will
downshift to the third gear when the vehicle speed
is or becomes lower than 154 km/h (96 mph) and
more powerful engine braking will be obtained.
3Shift into the º2º position. The transmission will
downshift to the second gear when the vehicle
speed is or becomes lower than 104 km/h (65 mph)
and more powerful engine braking than that of º3º
position will be obtained.
4Shift into the ºLº position. The transmission will
downshift to the first gear when the vehicle speed
is or becomes lower than 18 km/h (11 mph) and
maximum engine braking will be applied.