2010 Lexus IS250C steering

443
4-3. Do-it-yourself maintenance
4
Maintenance and care
10ECU-IG LH10 A
Cruise control, air conditioning sys-
tem, power steering, rain sensor, anti-
glare inside rear view mirror, shift lock
system, tire inflation pressure warning
system, vehicle stability control
11FR S/HTR LH15 ASeat heaters and ventilators, air condi-
tioning system
12FR DOOR LH20 APower windows, outside rear view
mirrors
13SECURITY7. 5 ASmart access system with push-button
start
14H-LP LVL7. 5 AAFS
15LH-IG10 A
Charging system, headlight cleaner,
rear window defogger, electric cool-
ing fans, emergency flashers, turn sig-
nal lights, back-up lights, stop lights,
mirror heaters, seat belt pretensioner,
intuitive parking assist, cruise control,
PTC heater, exhaust system, smart
access system with push-button start
16FR WIP30 AWindshield wipers
FuseAmpereCircuit

444
4-3. Do-it-yourself maintenance
■Passenger’s side instrument panel
FuseAmpereCircuit
1FR P/SEAT RH30 APo w e r s e a t
2DOOR DL15 A
3OBD7. 5 AOn-board diagnosis system
4STOP SW7. 5 A
Stop lights, multipor t fuel injection sys-
tem/sequential multip ort fuel injection
system, VDIM, shift lock system
5TI & TE20 AElectric tilt and telescopic steering
column
6RAD NO.310 AAudio
7GAUGE7. 5 AMeter
8IGN10 A
SRS airbag system, steering lock sys-
tem, multiport fuel injection system/
sequential multiport fuel injection sys-
tem, stop lights, smart access system
with push-button start, occupant
detection system
9ACC7. 5 A
Audio, clock, air conditioning system,
navigation system, outside rear view
mirrors, smart access system with
push-button start, glove box light,
console box light

445
4-3. Do-it-yourself maintenance
4
Maintenance and care
10CIG15 ACigarette lighter
11PWR OUTLET15 APo w e r o u t l e t
12FR DOOR RH20 APower windows, outside rear view
mirrors
13AM27. 5 AStarting system
14RH-IG7. 5 A
Seat belt pretensioner, intuitive park-
ing assist, automatic transmission, seat
heater and ventilator
15FR S/HTR RH15 ASeat heaters and ventilators, air condi-
tioning system
16ECU-IG RH10 A
Power seats, headlights, front fog
lights, parking lights, license plate
lights, front side marker lights, wind-
shield washer, outside rear view mir-
rors, VDIM, air conditioning system,
pre-collision seat belt, electric tilt and
telescopic steering, power windows,
navigation system, vehicle stability
control, retractable hardtop, clock
FuseAmpereCircuit

5
When trouble arises
459
5-1. Essential information
If your vehicle needs to be towed
Before towingThe following may indicate a problem with your transmission. Contact
your Lexus dealer before towing.
● The engine is running, but the vehicle will not move.
● The vehicle makes an abnormal sound.
Emergency towing
If a tow truck is not available, in an emergency your vehicle may be tem-
porarily towed using a cable or chain secured to the emergency towing
eyelet(s). This should only be attempted on hard, surfaced roads for short
distances at low speeds.
A driver must be in the vehicle to s teer and operate the brakes. The vehi-
cle’s wheels, drive train, axles, steering and brakes must be in good condi-
tion.
Towing eyelets
If towing is necessary, we recommend having your vehicle towed by your
Lexus dealer or a commercial towing se rvice, using a lift-type truck or a flat
bed truck.
Use a safety chain system for all towi ng, and abide by all state/provincial
and local laws.
If towing from the rear, the vehicle’s front wheels and axles must be in good
condition. ( P. 4 6 3 )
If they are damaged, use a to wing dolly or flat bed truck.

460
5-1. Essential information
■Emergency towing procedureRelease the parking brake.
Shift the shift lever to N.
Put the “ENGINE START STOP” switch in ACCESSORY mode or IGNI-
TION ON mode.
CAUTION
■Caution while towing
●Use extreme caution when towing the vehicle.
Avoid sudden starts or erratic driving maneuvers which place excessive stress on
the emergency towing eyelets and the cables or chains. Always use caution for
the surroundings and other vehicles while towing.
●If the engine is not running, the power assi st for the brakes and steering will not
function, making steering and braking more difficult.
NOTICE
■To prevent causing serious damage to the transmission
(vehicles with an automatic transmission)
Never tow this vehicle from the front with the rear wheels on the ground.
This may cause serious dama ge to the transmission.
■When towing a vehicle without using a towing dolly
(vehicles with a manual transmission)
The “ENGINE START STOP” switch must not be OFF.
STEP1
STEP2
STEP3

5
When trouble arises
463
5-1. Essential information
Towing with a wheel lift-type truckFrom the front Vehicles with an automatic trans-
mission: Use a towing dolly under
the rear wheels.
Vehicles with a manual transmis-
sions: We recommend to use a
towing dolly under the rear wheels.
When not using a towing dolly,
release the parking brake and shift
the shift lever to N.
From the rearSwitch to ACCESSORY mode so
that the steering wheel is
unlocked.

464
5-1. Essential information
Using a flat bed truckIf your Lexus is transported by a
flat bed truck, it should be tied
down at the locations shown in the
illustration.
If you use chains or cables to tie
down your vehicle, the angles
shaded in black must be 45 .
Do not overly tighten the tie downs
or the vehicle may be damaged.
NOTICE
■To prevent causing serious damage to the transmission
(vehicles with an automatic transmission)
Never tow this vehicle from the front with the rear wheels on the ground.
■To prevent damaging the vehicle
●Do not tow the vehicle from the rear with the “ENGINE START STOP” switch
OFF.
The steering lock mechanism is not st rong enough to hold the front wheel
straight.
●When raising the vehicle from the rear, ensure adequate ground clearance for
towing at the opposite end of the raised vehicle. Without adequate clearance, the
vehicle could be damaged while being towed from the rear.

470
5-2. Steps to take in an emergency
Have the vehicle inspected by your Lexus dealer immediately.
Failing to investigate the cause of the following warnings may lead to the
system operating abnormally and possibly cause an accident. Have the
vehicle inspected by your Lexus dealer immediately.
Warning lightWarning light/Details
(U.S.A.)
(Canada)
Malfunction indicator lamp
Indicates a malfunction in:
• The electronic engine control system;
• The electronic throttle control system; or
• The electronic automatic transmission control system.
SRS warning lightIndicates a malfunction in:
• The SRS airbag system; or
• The seat belt pretensioner system.
(U.S.A.)
(Canada)
“ABS” warning lightIndicates a malfunction in:
•The ABS;
• The brake assist system.
Electric power steering system warning light
Indicates a malfunction in the EPS (Electric Power Steering)
system.
Pre-collision system warning light (if equipped)Indicates a malfunction in the pre-collision system.