Page 457 of 609

436
4-3. Do-it-yourself maintenance
IS250/220d/200d_EE
If the electronic key battery is discharged
The following symptoms may occur.
The smart entry & start system and wireless remote control will not
function properly.
The operational range is reduced.
Use a CR1632 lithium battery
Batteries can be purchased at any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional, jewelers, or camera
stores.
Replace only with the same or equivalent type recommended by any
authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
Dispose of used batteries according to the local laws.
When the card key battery needs to be replaced (if equipped)
The battery for the card key is available only at Lexus dealers. Your Lexus
dealer can replace the battery for you.
CAUTION
Removed battery and other parts
Keep away from children. These parts are small and if swallowed by a child,
they can cause choking. Failure to do so could result in death or serious
injury.
Certification for the smart entry & start system
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCOR-
RECT TYPE. DISPOSE OF USED BATTERIES ACCORDING TO THE
INSTRUCTIONS.
Page 464 of 609
443
4-3. Do-it-yourself maintenance
4
Maintenance and care
IS250/220d/200d_EE
7MPX-B10 A
Headlights, front fog lights, front
position lights, license plate lights,
windshield washer, horn, power
door lock system, power windows,
power seats, electric tilt and tele-
scopic steering column, meter,
smart entry & start system, outside
rear view mirrors, air conditioning
system, multiplex communication
system
8DOME10 AInterior lights, meter, outer foot
lights
9CDS10 AElectric cooling fans
10E/G-B60 AFR CTRL-B, ETCS, A/F, STR
LOCK, EDU, ECD
11DIESEL GLW80 AEngine glow system
12ABS150 AVDIM
13RH J/B-B30 AFR DOOR RH, RR DOOR RH,
AM2
14MAIN30 AH-LP L LWR, H-LP R LWR
15STARTER30 ASmart entry & start system
16LH J/B-B30 AFR DOOR LH, RR DOOR LH,
SECURITY
17P/I-B60 AEFI, F/PMP, INJ
18EPS80 APower steering
FuseAmpereCircuit
Page 470 of 609
449
4-3. Do-it-yourself maintenance
4
Maintenance and care
IS250/220d/200d_EE
15FR DOOR LH20 APower windows, outside rear view
mirror
16SECURITY7.5 ASmart entry & start system
17H-LP LVL7.5 AAutomatic headlight leveling sys-
tem
18LH-IG10 A
Charging system, headlight
cleaner, rear window defogger,
electric cooling fans, emergency
flashers, turn signal lights, back-up
lights, stop lights, outside rear
view mirror defoggers, seat belts,
Lexus parking assist-sensor, cruise
control, PTC heater, rear sunshade,
exhaust system
19FR WIP30 AWindshield wipers
FuseAmpereCircuit
Page 472 of 609

451
4-3. Do-it-yourself maintenance
4
Maintenance and care
IS250/220d/200d_EE
9ACC7.5 A
Clock, audio, navigation system,
outside rear view mirrors, smart
entry & start system, Lexus park-
ing assist monitor, glove box light,
console box light, multiplex com-
munication system, display
10CIG15 ACigarette lighter
11PWR OUTLET15 APower outlet
12RR DOOR RH20 APower windows
13FR DOOR RH20 A
Power windows, outside rear view
mirrors, multiplex communication
system
14AM27.5 ASmart entry & start system
15RH-IG7.5 A
Seat belts, automatic transmis-
sion, seat heaters and ventilators,
windshield wiper de-icer, power
heater
16FR S/HTR RH15 ASeat heaters and ventilators
17ECU-IG RH10 A
Power seat, headlights, front fog
lights, front position lights, license
plate lights, windshield washer,
outside rear view mirror, VDIM,
air conditioning system, pre-crash
seat belt, electric tilt and telescopic
steering column, power windows,
navigation system, vehicle stabil-
ity control, multiplex communica-
tion system, smart entry & start
system
FuseAmpereCircuit
Page 545 of 609
5
519
5-2. Steps to take in an emergency
When trouble arises
IS250/220d/200d_EE
If the electronic key does not operate properly
Locking and unlocking the doors, unlocking the trunk and key linked func-
tions
Use the mechanical key built in to the electronic keys to operate
the doors. (P. 33)
An alarm will sound if the alarm is set. ( P. 102)
Doors
Remove the cover on the
driver’s door handle.
Locks all doors
Closes the windows/moon
roof (turn and hold)
Unlocks all doors
Opens the windows/moon
roof (turn and hold)
If communication between the electronic key and vehicle is inter-
rupted (P. 42) or the electronic key cannot be used because the bat-
tery is depleted, the smart entry & start system and wireless remote
control cannot be used. In such cases, the doors and trunk can be
opened or the engine can be started by following the procedure below.
STEP1
STEP2
Page 603 of 609

570
Alphabetical index
IS250/220d/200d_EE
Service reminder indicators ......177
Shift lever
Automatic transmission ........161
If the shift lever cannot
be shifted from P ................517
Manual transmission.............168
Shift lever light..........................351
Shift lock system .......................517
Shopping bag hooks ..................384
Side airbags ...............................110
Side mirror
Adjusting and folding .............84
Mirror position memory .........66
Side turn signal lights
Wattage .................................552
Smart entry & start system
Entry function .........................37
Starting the engine ................158
Spare tire
Inflation pressure ..................548
Storage location ....................487
Spark plug .................................544
Specifications ............................534
Speedometer
Speed indicator .....................171
Speedometer .........................171Steering wheel
Audio switches* .................. 307
Steering wheel position
memory ............................... 66
Manual adjustment ................ 79
Power adjustment .................. 80
Storage feature.......................... 355
Stuck
If your vehicle becomes stuck ...
532
Sun visors ................................. 362
Sunshade
Rear...................................... 378
Roof ....................................... 90
Switch
Airbag manual ON/OFF ...... 140
ECT switch .......................... 162
Emergency flasher switch.... 458
Engine switch ...................... 156
Fog light switch ................... 190
Hazard light switch .............. 458
Ignition switch ..................... 156
Light switches ...................... 186
Power door lock switch ......... 58
Power window switch............ 85
Satellite switches ................. 365
Transmission shift switches . 165
Window lock switch.............. 85
Wiper and washer ................ 191
Page 605 of 609

572
Alphabetical index
IS250/220d/200d_EE
Warning buzzers
Brake system ........................467
Open door ............................470
Seat belt reminder .................470
Warning lights
Anti-lock brake system .........468
Brake assist system...............468
Brake system ........................467
Charging system ...................468
Electric power steering warning
light ....................................468
Electronic engine control
system.................................468
Fuel filter warning light........468
Low fuel level .......................470
Malfunction indicator lamp ..468
Master warning light ............470
Open door .............................470
Pre-crash safety system ........468
Pretensioners ........................468
Seat belt reminder light ........470
SRS airbags ..........................468Warning messages
Dynamic radar cruise
control ....................... 475, 477
Engine oil level .................... 477
Engine oil maintenance ....... 477
Engine oil pressure .............. 475
Hood .................................... 477
Lexus parking assist
sensor......................... 475, 477
Moon roof ............................ 477
Open door ............................ 477
Parking brake ....................... 477
Pre-crash safety system 475, 477
Smart entry & start system .. 482
Steering lock ........................ 475
Trunk ................................... 477
Washer fluid ........................ 477
Washer
Checking .............................. 420
Preparing and checking
before winter ..................... 239
Switch .................................. 191
Washing and waxing ................ 388
Weight ...................................... 534
Wheels ...................................... 428
Window glasses ......................... 85
Window lock switch ................... 85
Windows
Power windows...................... 85
Rear window defogger......... 265
Washer ................................. 191W