2012 Lexus GS250 afs

7146-3. Do-it-yourself maintenance
GS350/250_EE (OM30C36E)
Right-hand drive vehicles
FuseAmpereCircuit
1P/SEAT1 F/L30Power seats
2D/L NO.125Power door lock system
3NV-IR10No circuit
4FL S/HTR10Seat heaters/ventilators
5STRG HTR15Heated steering wheel
6WIPER-IG5Windshield wipers
7LH-IG10
Seat belts, body ECU, AFS, Remote
Touch screen, overhead module, rain-
drop sensor, moon roof, inside rear view
mirror, LKA, front left-hand door ECU,
Lexus parking assist-sensor, power seats,
CAN gateway ECU
8LH ECU-IG10Yaw rate and G sensor, air conditioning
system, AFS, driver support system
9DOOR FL30Outside rear view mirror defoggers,
power window (front left-hand)
10CAPACITOR
(HV)10No circuit
11AM27.5Power management system, smart entry
& start system
12D/L NO.225Power door lock system
13DOOR RL30Power window (rear left-hand)
14HAZ15Turn signal lights, emergency flashers

7517-2. Steps to take in an emergency
7
When trouble arises
GS350/250_EE (OM30C36E)
Electric power steering system warning light
Indicates a malfunction in the EPS (Electric Power Steer-
ing) system
(Flashes)
(If equipped)
Pre-crash safety system warning light
Indicates a malfunction in the pre-crash safety system
The warning light will operate as follows, even when the
system is not malfunctioning:
• The light will flash quickly when the system is operat-
ing.
(P. 343)
• The light will turn on when the pre-crash safety system
is disabled. (P. 344)
• The light will flash when the system cannot temporarily
be used. (P. 774)
Slip indicator
Indicates a malfunction in:
•The VSC system;
• The TRC system; or
• The hill-start assist control system
The light will flash when the VSC, the TRC or the hill-
start assist control system is operating.
(Flashes)
(If equipped)
“AFS OFF” indicator
Indicates a malfunction in the adaptive front-lighting sys-
tem
(Flashes)
Parking brake indicator
Indicates a malfunction in the parking brake system
Brake system warning light
Indicates a malfunction in the parking brake system
Wa r n i n g
lightWarning light/Details

7967-2. Steps to take in an emergency
GS350/250_EE (OM30C36E)
CAUTION
When using the full-size spare tire as a rear tire (vehicles with front and rear
tires of differing sizes)
Replace the spare tire with a standard tire as soon as possible.
Avoid sudden acceleration, abrupt steering, as well as sudden braking and
shifting operation to engine braking.
When using the compact spare tire
Remember that the compact spare tire provided is specifically designed
for use with your vehicle. Do not use your compact spare tire on another
vehicle.
Do not use more than one compact spare tires simultaneously.
Replace the compact spare tire with a standard tire as soon as possible.
Avoid sudden acceleration, abrupt steering, as well as sudden braking and
shifting operation to engine braking.
When the compact spare tire is attached
The vehicle speed may not be correctly detected, and the following systems
may not operate correctly:
Also, not only can the following system not be utilized fully, but it may
even negatively affect the drive-train components:
• AWD system
• ABS & Brake assist
•VSC
•TRC
• Cruise control (if equipped)
• Dynamic radar cruise control
(if equipped)
• PCS (if equipped)
•EPS
• AFS (if equipped)• AVS (if equipped)
• LKA (Lane-Keeping Assist)
(if equipped)
• Lexus parking assist monitor
(if equipped)
• Lexus parking assist-sensor
(if equipped)
• Navigation system (if equipped)

876Alphabetical index
GS350/250_EE (OM30C36E)
Alphabetical index
A/C ............................................409
Air conditioning filter ...........695
Front automatic air
conditioning system ...........409
Rear air conditioning system 425
S-FLOW mode .....................419
ABS (Anti-lock Brake System) .333
Function ................................333
Warning light........................750
Warning message..................761
Adaptive Front-lighting System
(AFS) ....................................230
Adaptive Variable Suspension
system (AVS)..........................334
AFS (Adaptive Front-lighting
System) ..................................230
Air conditioning filter ...............695
Air conditioning system ............409
Air conditioning filter ...........695
Front automatic air
conditioning system ...........409
Rear air conditioning system 425
S-FLOW mode .....................419Airbags ....................................... 44
Airbag manual on-off system 56
Airbag operating conditions .. 51
Airbag precautions for
your child ............................ 47
Airbag warning light............ 750
Correct driving posture .......... 36
Curtain shield airbag operating
conditions ............................ 51
Curtain shield airbag
precautions .......................... 49
General airbag precautions .... 47
Locations of airbags............... 44
Modification and disposal of
airbags ................................. 50
Side airbag operating
conditions ............................ 51
Side airbag precautions.......... 47
Side and curtain shield airbags
operating conditions ............ 51
Side and curtain shield airbags
precautions .......................... 47
SRS airbags............................ 44
Airbag manual on-off system ..... 56
Alarm .......................................... 86
Alarm ..................................... 86
Warning buzzer............ 749, 757
Anchor brackets.......................... 69
Antennas (smart entry &
start system) .......................... 125
A

882Alphabetical index
GS350/250_EE (OM30C36E)
Gauges .........................................99
Glove box ..................................616
Glove box light ..........................616
Hands-free system
(for cellular phone) .................542
Head restraints ...........................168
Headlights .................................228
Adaptive Front-lighting
System (AFS) .....................230
Automatic High Beam
system.................................233
Discharge headlights
precautions .........................737
Follow me home system .......229
Headlight leveling warning
message ..............................760
Light switch ..........................228
Replacing light bulbs ............735
Wattage .................................853
Headlight cleaner.......................248
Head-up display ........................112
Heaters.......................................409
Air conditioning system .......409
Heated steering wheel...........629
Outside rear view mirrors .....430
Seat heaters ...........................631
Hill-start assist control ..............341Hood ......................................... 657
Open..................................... 657
Warning message................. 763
Hooks
Cargo hooks ......................... 621
Coat hooks ........................... 640
Retaining hooks (floor mat)... 34
Luggage hook ...................... 621
Utility hook .......................... 642
Horn .......................................... 228
Identification ............................ 837
Engine .................................. 837
Vehicle ................................. 837
Ignition switch (engine switch) 207
Illuminated entry system .......... 613
Immobilizer system .................... 80
Indicators .................................... 96
Initialization
Moon roof ............................ 183
Power windows.................... 179
Tire pressure warning
system................................ 675
Initiators (tire pressure warning
system) ................................... 688
Inside door handle lights .......... 611
Inside rear view mirror ............. 171
Instrument panel light control .. 100
Interior lights ............................ 611
Intrusion sensor and tilt sensor ... 89
ISOFIX rigid anchors ................. 69
G
H
I

888Alphabetical index
GS350/250_EE (OM30C36E)
Steering lock..............................211
Column lock release .............212
Steering lock system warning
message ..............................781
Steering wheel ...........................170
Adjustment ...........................170
Audio switches .....................543
Heated steering wheel...........629
Power easy access system ....166
Steering wheel position
memory ..............................162
Stop lights
Emergency brake signal .......334
Replacing light bulbs ............735
Storage feature...........................614
Stuck
If the vehicle becomes stuck.833
Sun visors ..................................624
Sun shade
Rear ......................................636
Rear door ..............................637
Roof ......................................182
Switches
AFS OFF switch ...................230
Audio remote control
switches ..............................543
Automatic High Beam switch ....
233
BSM (Blind spot monitor)
switch .................................354
Cruise control switch ............254
“DISP” button.......................104
Door lock switches ...............146
Driving mode select switch ..328Driving position memory
switches ............................. 162
Dynamic radar cruise control
switch ................................ 258
Emergency flashers switch .. 738
Engine switch ...................... 207
Fog light switch ................... 239
Headlight cleaner switch ..... 248
Heated steering wheel switch ....
629
HUD (Head-up display)
switches ............................. 112
Ignition switch ..................... 207
Lexus parking assist-sensor
switch ................................ 285
Light switches ...................... 228
LKA (Lane-Keeping Assist)
switch ................................ 276
Moon roof switches ............. 181
Outside rear view mirror
switches ............................. 174
Paddle shift switches ........... 218
PCS OFF switch .................. 344
Power door lock switch ....... 146
Power window switches ...... 178
Rear sunshade switch........... 636
Rear window and outside rear
view mirror defoggers
switch ................................ 430
Seat heater switches ............. 631
Seat ventilator switches ....... 632
Snow mode switch ............... 217
Talk switch .................. 402, 567
Telephone switches.............. 543
Tilt and telescopic steering
control switch .................... 170

891Alphabetical index
GS350/250_EE (OM30C36E)
Warning buzzers
Approach warning ................264
Brake system ........................749
Downshifting ........................221
Key reminder ........................777
Lexus parking assist-sensor ..284
No-handed driving warning..279
Open door .............................763
Open hood ............................763
Open moon roof....................764
Open trunk ............................764
Open window .......................764
Pre-crash braking ..................343
Seat belt reminder .................752
Warning lights .............................95
ABS ......................................750
AFS OFF indicator ...............751
Brake system ................749, 751
Charging system ...................750
Electric power steering
system.................................751
Low fuel level .......................752
Malfunction indicator lamp ..750
Master warning light ............752
Open door .............................752
Parking brake indicator.........751
Pre-Crash Safety system .......751
Seat belt reminder light ........752
Slip indicator ........................751
SRS .......................................750
Tire pressure warning light...753Warning messages .................... 757
Warning reflector storage belt .. 623
Washer ...................................... 241
Checking .............................. 671
Low washer fluid warning
message ............................. 771
Preparing and checking
before winter ..................... 359
Switch .................................. 241
Washing and waxing ................ 644
Weight ...................................... 836
Welcome light illumination
control .................................... 123
Wheels ...................................... 693
Replacing ............................. 693
Size ...................................... 850
Window glasses ........................ 178
Window lock switch ................. 178
Windows................................... 178
Power windows.................... 178
Rear window defogger......... 430
Windshield wiper de-icer ......... 431
Windshield wipers .................... 241
Intermittent wiper with interval
adjuster .............................. 241
Position ................................ 362
Rain-sensing windshield
wipers ................................ 243
Winter driving tips.................... 359
Wireless remote control key ..... 141
Battery-Saving Function ...... 129
Locking/Unlocking .............. 141
Replacing the battery ........... 697
WMA disc ................................ 469
W