Page 562 of 612

CHASSIS
547
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.
Page 573 of 612
ELECTRICAL COMPONENTS
558
25AIRSUS
NO.210Rear height control air
suspension
26SEAT
HEATER20Seat heaters
27DOME10
Ignition switch light, interior
lights, personal lights, foot
lights, running board lights,
door courtesy lights, inside
door handle lights,
multi- information display
28RADIO
NO.120Car audio system, navigation
system
29ECU-B10
Multiplex communication
system, vehicle stability control
system, wireless remote
control system, inside rear
view mirror, air conditioning
system, electronic modulated
suspension, driving position
memory system, power
windows, moon roof
30ECU-B
NO.210Theft deterrent system
31ABS
MTR40
Anti- lock brake system,
vehicle stability control system,
active traction control system,
brake assist system
32AM230Starting system, all components
in IGNº, SRSº, GAUGEº and
ST2º fuses
No.FUSEAMPERECIRCUIT
Page 574 of 612
ELECTRICAL COMPONENTS
559
33ABS
SOL50
Anti- lock brake system,
vehicle stability control system,
active traction control system,
brake assist system
34ALT-S7.5Charging system
35MAYDAY7.5Lexus link system
36HORN10Horns
37TRN-HAZ15Turn signal lights
38ETCS10Electronic throttle control system
39EFI20Multiport fuel injection
system/sequential multiport fuel
injection system
40D FR P/W20Power window
41DR/LCK25Power door lock
42TOWING30Towing converter
43RADIO
NO.230Car audio system, navigation
system
44IGN10
Multiport fuel injection
system/sequential multiport fuel
injection system, vehicle
stability control system
45SRS10SRS airbag system
46GAUGE7.5Gauges and meters
47ST27.5Multiport fuel injection
system/sequential multiport fuel
injection system
No.FUSEAMPERECIRCUIT
Page 575 of 612
ELECTRICAL COMPONENTS
560
48FR
WIP-WSH30Windshield wipers, windshield
washer
49TEMS20Electronic modulated
suspension
50DIFF20Four-wheel drive system
51RR WIP15Rear window wiper
52D P/SEAT30Driver's power seat
53P P/SEAT30Front passenger's power seat
54PWR
OUTLET15Power outlet (12 VDC)
55IG1 NO.210Rear air conditioning system,
inside rear view mirror
56RR WSH15Rear window washer
57ECU-IG10
Shift lock control system, power
windows, outside rear view
mirror defogger, anti-lock brake
system, active traction control
system, vehicle stability control
system, air conditioning system,
navigation system, power
windows, moon roof, Lexus link
system, tilt and telescopic
steering, multi- information
display, driving position
memory system
58IG110
Air conditioning system, back-up
lights, rear window defogger,
seat heaters, vehicle stability
control system
No.FUSEAMPERECIRCUIT
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