2014 Lexus IS F power steering

201
2-4. Using other driving systems
2
When driving
IS F_U
Driving assist systems
To help enhance driving safety and performance, the following systems
operate automatically in response to various driving situations. Be aware,
however, that these systems are supplementary and should not be relied
upon too heavily when operating the vehicle.
■ ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the brakes are applied suddenly, or if
the brakes are applied while driving on a slippery road surface.
■Brake assist
Generates an increased level of braking force after the brake pedal is
depressed, when the system detects a panic stop situation.
■VSC (Vehicle Stability Control)
Helps the driver to control skidding when swerving suddenly or turning on
slippery road surfaces.
■TRAC (Traction Control)
Helps to maintain drive power and prevent the rear wheels from spinning
when starting the vehicle or accelerating on slippery roads.
■Hill-start assist control
Helps to prevent the vehicle from rolling backwards when starting on an
incline or slippery slope.
■EPS (Electric Power Steering)
Employs an electric motor to reduce the amount of effort needed to turn
the steering wheel.
■VDIM (Vehicle Dynamics Integrated Management)
Provides integrated control of the ABS, brake assist, TRAC, VSC, hill-start
assist control, and EPS systems.
Helps to maintain vehicle stability when swerving on slippery road sur-
faces by controlling the brakes, engine output and steering assist.
When the F-sport mode total control switch is pressed, “Sport” mode is
activated. ( →P. 2 0 3 )
■PCS (Pre-Collision System) (if equipped)
→ P. 2 0 7

205
2-4. Using other driving systems
2
When driving
IS F_U
■Reduced effectiveness of the EPS system
The effectiveness of the EPS system is reduced to prevent the system from over-
heating when there is frequent steering input over an extended period of time. The
steering wheel may feel heavy as a result. Should this occur, refrain from excessive
steering input or stop the vehicle and turn the engine off. The EPS system should
return to normal within 10 minutes.
■Automatic deactivation of “Sport” mode
When the “ENGINE START STOP” switch is turned off after driving in “Sport”
mode, the mode is automatically deactivated.
■If the slip indicator comes on
It may indicate a malfunction in the VSC, TRAC or hill-start assist control system.
Contact your Lexus dealer.
CAUTION
■The ABS does not operate effectively when
●The limits of tire gripping performance have been exceeded (such as excessively
worn tires on a snow covered road).
●The vehicle hydroplanes while driving at high speed on the wet or slick road.
■Stopping distance when the ABS is operating may exceed that of normal condi-
tions
The ABS is not designed to shorten the vehicle’s stopping distance. Always main-
tain a safe distance from the vehicle in front of you, especially in the following situa-
tions.
●When driving on dirt, gravel or snow-covered roads
●When driving over bumps in the road
●When driving over roads with potholes or roads with uneven roads
■TRAC may not operate effectively when
Directional control and power may not be achievable while driving on slippery road
surfaces, even if the TRAC system is operating.
Do not drive the vehicle in conditions where stability and power may be lost.

281
3-2. Using the audio system
3
Interior features
IS F_U
Using the steering wheel audio switches
Turning on the powerPress when the audio system is turned off.
The audio system can be turned off by holding down until you hear a
beep.
Some audio features can be controlled using the switches on the steering
wheel.
Operation may differ depending on the type of audio system or navi-
gation system. For details, refer to the manual provided with the audio
system or navigation system.
Turns the power on, selects
an audio source
Increases/decreases volume
Radio mode: Selects a radiostation
CD mode: Selects a track, file (MP3 and
WMA) and disc
Bluetooth
® audio mode:
Selects a track and
album
iPod mode: Selects a song
USB memory mode: Selects a file and folder

442
4-3. Do-it-yourself maintenance
IS F_U
Fuse layout and amperage ratings■ Engine compartment (type A)
FuseAmpereCircuit
1ALT-S7. 5 ACharging system
2TURN-HAZ15 AEmergency flashers, turn signals
3IG2 MAIN20 AIG2, IGN, GAUGE
4RAD NO. 230 AAudio system
5D/C CUT20 ADOME, MPX-B
6RAD NO. 130 AAudio system
7MPX-B10 A
Headlights, front fog lights, parking
lights, windshield washer, horns,
power door lock system, power win-
dows, power seats, electric tilt and
telescopic steering column, meters
and gauges, smart access system with
push-button start, outside rear view
mirrors, air conditioning system
8DOME10 AInterior lights, meters and gauges,
front footwell lights
9CDS10 AElectric cooling fans

443
4-3. Do-it-yourself maintenance
4
Maintenance and care
IS F_U
10E/G-B60 AFR CTRL-B, ETCS, A/F, STR LOCK,
INJ2, TEL
11P/ I - B60 AEFI, F/PMP, INJ
12ABS 150 AVDIM
13RH J/B-B30 AFR DOOR RH, RR DOOR RH, AM2
14VVT40 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
15MAIN30 AH-LP R LWR, H-LP L LWR, headlight
low beams
16STARTER30 ASmart access system with push-button
start
17LH J/B-B30 AFR DOOR LH, RR DOOR LH,
SECURITY
18EPS80 AElectric power steering
19ALT180 A
LH J/B-AM, E/G-AM, HEATER,
FAN1, FAN2, DEFOG, RH J/B-AM,
ABS 2
20LH J/B-AM80 A
S/ROOF, FR P/SEAT LH, TV NO.1,
A/C, F/OPN, PSB, FR WIP,
H-LP LVL, LH-IG, ECU-IG LH,
PANEL, TAIL, MIR HTR, TV NO. 2,
FR S/HTR LH
21RH J/B-AM80 A
OBD, STOP SW, TI&TE, FR P/SEAT
RH, RAD NO. 3, ECU-IG RH,
RH-IG, FR S/HTR RH, ACC, CIG,
PWR OUTLET
22ABS230 AVDIM
23DEFOG50 ARear window defogger
FuseAmpereCircuit

447
4-3. Do-it-yourself maintenance
4
Maintenance and care
IS F_U■
Driver’s side instrument panel
FuseAmpereCircuit
1FR P/SEAT LH30 APo w e r s e a t
2A/C7. 5 AAir conditioning system
3MIR HTR15 AOutside rear view mirror defoggers
4TV NO. 110 ADisplay
5FUEL OPEN10 AFuel filler door opener
6TV NO. 27. 5 A
7PSB30 APre-collision seat belt
8S/ROOF25 AMoon roof
9TA I L10 ATail lights, license plate lights, rear side
marker lights
10PA N E L7. 5 A
Switch illumination, air conditioning
system, display, cigarette lighter illumi-
nation, shift lever light, instrument
panel lights
11RR FOG7. 5 A
12ECU-IG LH10 A
Cruise control, air conditioning sys-
tem, electric power steering, shift lock
system, moon roof, tire inflation pres-
sure warning system

450
4-3. Do-it-yourself maintenance
IS F_U
10CIG15 ACigarette lighter
11PWR OUTLET15 APo w e r o u t l e t
12RR DOOR RH20 APo w e r w i n d o w s
13FR DOOR RH20 APower windows, outside rear view
mirrors
14AM27. 5 ASmart access system with push-button
start
15RH-IG7. 5 A
Seat belts, intuitive parking assist,
automatic transmission, seat heaters,
windshield wiper de-icer
16FR S/HTR RH15 ASeat heaters
17ECU-IG RH10 A
Power seats, smart access system with
push-button start, outside rear view
mirrors, VDIM, air conditioning sys-
tem, pre-collision seat belt, electric tilt
and telescopic steering, power win-
dows, navigation system, headlights,
front fog lights, parking lights, license
plate lights, windshield washer
FuseAmpereCircuit

462
5-1. Essential information
IS F_U
■Emergency towing procedureRelease the parking brake.
Shift the shift lever to N.
Put the “ENGINE START STOP” switch in ACCESSORY mode (engine
off) or IGNITION ON mode (engine running).
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 eyelet and the cables or chains. Always be cautious of the
surroundings and other vehicles while towing.
●If the engine is not running, the power assist for the brakes and steering will not
function, making steering and braking more difficult.
NOTICE
■To prevent causing serious damage to the transmission
Never tow this vehicle from the rear with four wheels on the ground. This may cause
serious damage to the transmission.
STEP1
STEP2
STEP3