2008 TOYOTA HIGHLANDER power steering

166 2-1. Driving procedures
■Steering lock release
■ If the engine does not start
The engine immobilizer system may not have been deactivated. ( P. 110)
■ When the “ENGINE START STOP” s witch indicator flashes in amber
The system may be malfunctioning. Have the vehicle inspected by your
Toyota dealer immediately.
■ Auto power OFF function
If the vehicle is left in ACC mode for more than an hour with the shift lever in
P, the “ENGINE START STOP” switch will automatically turn OFF.
■ Key battery depletion
P. 3 9
■ When the electronic key battery is discharged
P. 453
■ Conditions affecting operation
P. 3 7
■ Note for the entry function
P. 3 9
Make sure that the steering wheel lock is
released.
To release the steering wheel lock, gently
turn the wheel left or right while pressing
the “ENGINE START STOP” switch.
When the steering wheel lock does not
release, the “ENGINE START STOP”
switch indicator will flash green.

207
2-4. Using other driving systems
2
When driving
Driving assist systems
To help enhance driving safety and performance, the following sys-
tems operate automatically in res ponse to various driving situations.
Be aware, however, that these systems are supplementary and
should not be relied upon too heavi ly 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.
■BA (Brake Assist)
Generates an increased level of braking force after the brake pedal is
depressed, when the system detects a panic stop situation.
■Enhanced VSC (Enhanced Vehicle Stability Control)
Helps the driver to control skidding when swerving suddenly or turning
on slippery road surfaces.
■TRAC (Traction Control)
Maintains drive power and prevents the front wheels (2WD models) or
four wheels (4WD models) from sp inning when starting the vehicle or
accelerating on slippery roads.
■ Hill-start assist control
→ P. 212
■Downhill assist control system (4WD models only)
→ P. 213
■EPS (Electric Power Steering)
Employs an electric motor to reduce the amount of effort needed to turn
the steering wheel.

210 2-4. Using other driving systems
■EPS operation sound
When the steering wheel operates, a motor sound (whirring sound) may be
heard.
This does not indicate a malfunction.
■ Reduced effectiveness of EPS
The effectiveness of EPS is reduced to prevent the system from overheating
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 sys-
tem should return to normal within 10 minutes.
CAUTION
■The ABS does not operate effectively when
●Tires with inadequate gripping ability are used (such as excessively worn
tires on a snow covered road).
● The vehicle hydroplanes while driving at high speed on wet or slick road.
■ Stopping distance when the ABS is ope rating on the wet or slick roads
The ABS is not designed to shorten the vehicle's stopping distance. Always
maintain a safe distance from the vehicle in front of you in the following situ-
ations.
● When driving on dirt, gravel or snow-covered roads
● When driving with tire chains
● When driving over bumps in the road
● When driving over roads with potholes or uneven roads
■ TRAC may not operate effectively when
Directional control and power may not be achievable while driving on slip-
pery road surfaces, even if the TRAC system is operating.
Do not drive the vehicle in conditions where stability and power may be lost.

293
3-2. Using the audio system
3
Interior features
Using the steering wheel audio switches (if equipped)
Turning on the powerPress when the audio system is turned OFF.
The audio system can be turned off by holding the switch down until you
hear a beep.
Changing the audio source
Press when the audio system is turned ON. The audio source
changes as follows each time the switch is pressed.
CD player without changer:
FM1 FM2 CD AUXAM
CD player with changer:
FM1FM2 CD changer AUXAMSAT1 SAT2SAT3
Some audio features can be cont rolled using the switches on the
steering wheel.
Vo l u m e
Radio: Selects radio sta-
tions
CD: Selects tracks, files
(MP3 and WMA) and discs
Turns the power on, selects
audio source

459
4-3. Do-it-yourself maintenance
4
Maintenance and care
4 DEF RLY
10 A Rear window defogger
5 MIR HTR 20 A MIR HTR (15 A)
6 P/OUT 20 A Power outlet
7 DOOR 1 25 A Multiplex communication system
8 EFI NO.2 10 AMultiport fuel injection system/
sequential multiport fuel injection
system
9 EFI NO.3 10 AMultiport fuel injection system/
sequential multiport fuel injection
system
10 INJ NO.1 15 A Starting system
11 INJ NO.2 10 A Starting system
12 HTR 50 A Air conditioning system
13 VSC NO.1 50 A Vehicle stability control
14 FAN MAIN 50 A Electric cooling fan
15 VSC NO.2 30 A Vehicle stability control
16 PTC NO.1 50 A PTC heater
17 PTC NO.2 30 A PTC heater
18 PTC NO.3 30 A PTC heater
19 RR CLR 40 A Air conditioning system
20 RR DEF 30 A Rear window defogger
21 PBD 30 A Power back door
22 ALT 140 AMIR HTR, P/OUT, DOOR 1, HTR,
RR DEF, FAN MAIN, ABS NO.1,
PTC NO.1, RR CLR, PTC NO.2,
PTC NO.3, ABS NO.2, PBD
23 EPS 80 A Electric power steering
24 ST 30 A Starting system
25 CRT 10 A Rear seat entertainment system
FuseAmpereCircuit

460 4-3. Do-it-yourself maintenance
26 RADIO115 A Audio system
27 ECU-B 10 ASteering sensor, gauges and
meters, clock, air conditioning sys-
tem, main body ECU, wireless
remote control, smart key system,
power back door, on-board diagno-
sis system
28 DOME 10 AVanity lights, personal lights, inte-
rior light, gauges and meters,
engine switch light, door courtesy
lights, power back door
29 AMP 15 A Audio system
30 TOWING 30 A Trailer lights
31 IG2 25 A INJ NO.1, INJ NO.2
32 STR LOCK 20 A Steering lock system
33 EFI MAIN 25 A EFI NO.2, EFI NO.3
34 HAZ 15 A Turn signal lights
35 G/H 10 APower door lock system, multiplex
communication system
36 ALT-S 7.5 A Charging system
37 AM2 7.5 A Multiplex communication system
38 H-LP LH 15 A Left-hand headlight (high beam)
39 H-LP RH 15 A Right-hand headlight (high beam)
40 H-LP LL 15 A Left-hand headlight (low beam)
41 H-LP RL 15 A Right-hand headlight (low beam)
42 HORN 10 A Horn
43 EFI NO.1 10 AMultiport fuel injection system/
sequential multiport fuel injection
system, smart key system
FuseAmpereCircuit

463
4-3. Do-it-yourself maintenance
4
Maintenance and care
11 RR FOG
7.5 A No circuit
12 FUEL OPN 7.5 A No circuit
13 S/ROOF 30 A Electric moon roof
14 TAIL 15 AParking lights, tail lights, license
plate lights, front fog lights, trailer
lights
15 PANEL 7.5 AGlove box light, emergency flash-
ers, audio system, outside rear
view mirror defoggers, clock, power
door lock system, seat heaters,
rear seat entertainment system,
vehicle stability control system,
instrument panel light control dial,
electronic controlled transmission
switch, automatic transmission,
downhill assist control system,
steering switches
16 ECU IG NO.1 10 A Multiplex communication system,
electric moon roof, electronically
controlled automatic transmission
system, power back door, seat
heaters, tire pressure warning sys-
tem, electronic power steering,
automatic transmission
17 ECU IG NO.2 7.5 A Vehicle stability control system
18 A/C NO.2 10 A Air conditioning system
19 WASH 20 A Windshield wipers and washer
20 S-HTR 20 A Seat heaters
21 GAUGE NO.1 10 A Audio system, outside rear view
mirror defoggers, back-up lights,
charging system, emergency flash-
ers, traction control system, instru-
ment panel light control dial,
windshield wiper deicer
FuseAmpereCircuit

464 4-3. Do-it-yourself maintenance
22 FR WIP30 A Windshield wipers and washer
23 RR WIP 15 A Rear window wiper and washer
24 IGN 10 AMultiport fuel injection system/
sequential multiport fuel injection
system, steering lock system, anti-
lock brake system, smart key sys-
tem, SRS airbag system
25 GAUGE NO.2 7.5 A Gauges and meters, back monitor
26 ECU-ACC 7.5 A Power rear view mirror, shift lock
system, smart key system
27 ACC SOCK
NO.1 10 A Power outlet
28 ACC SOCK
NO.2 20 A Power outlet
29 RADIO NO.2 7.5 A Audio system, clock, rear seat
entertainment system, charging
system, interior lights, personal
lights
30 MIR HTR 15 A Outside rear view mirror defoggers
FuseAmpereCircuit