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461
4-3. Do-it-yourself maintenance
4
Maintenance and care
IS250/220d/200d_EE
CAUTION
Replacing light bulbs
Turn off the headlights. Do not attempt to replace the bulb immediately
after turning off the headlights.
The bulbs become very hot and may cause burns.
Do not touch the glass portion of the light bulb with bare hands. Hold the
bulb by the plastic or metal portion.
If the bulb is scratched or dropped it may blow out or crack.
Fully install light bulbs and any parts used to secure them. Failing to do so
may result in heat damage, fire, or water entering the headlight unit. This
may damage the headlights or cause condensation to build up on the lens.
Discharge headlights (if equipped)
Contact any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional, before replacing discharge headlights (includ-
ing light bulbs).
Do not touch the high-intensity discharge headlight’s high voltage socket
when the headlights are turned on.
An extremely high voltage of 20000 V will be discharged and could result
in serious injury or death by electric shock.
Do not attempt to take apart or repair the low beam discharge headlight
bulbs, connectors, power supply circuits, or related components.
Doing so could result in electric shock and serious injury or death.
To prevent damage or fire
Make sure bulbs are fully seated and locked.
Page 495 of 609
5
469
5-2. Steps to take in an emergency
When trouble arises
IS250/220d/200d_EE
Electric power steering warning light
Indicates a malfunction in the EPS (Electric Power Steer-
ing) system.
Pre-crash safety system warning light (if equipped)
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. 230)
• The light will flash when the pre-crash braking is dis-
abled. (P. 231)
• The light will flash when the system cannot temporarily
be used. (P. 477)
Slip indicator
Indicates a malfunction in:
•The VSC system;
•The TRC system; or
• The hill-start assist control system
Fuel filter warning light (vehicles with a manual transmis-
sion)
Indicates that the amount of accumulated water in the
fuel filter has reached the specified level.
Warning lightWarning light/Details
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472
5-2. Steps to take in an emergency
IS250/220d/200d_EE
*1:Open door warning buzzer:
P. 477
*2:Driver's and front passenger’s seat belt reminders:
The driver’s and front passenger’s seat belt buzzer sounds to alert the
driver and front passenger that his or her seat belt is not fastened. The
buzzer sounds for 30 seconds after the vehicle has reached a speed of at
least 20 km/h (12 mph). Then, if the seat belt is still unfastened, the
buzzer will sound in a different tone for 90 more seconds.
If the malfunction indicator lamp comes on while driving
The malfunction indicator lamp will come on if the fuel tank becomes com-
pletely empty. If the fuel tank is empty, refuel the vehicle immediately. The
malfunction indicator lamp will go off after several trips.
If the malfunction indicator lamp does not go off, contact any authorized
Lexus dealer or repairer, or another duly qualified and equipped profes-
sional as soon as possible.
Electric power steering warning light
When the battery is low or when the voltage drops temporarily, the electric
power steering warning light may come on.
Front passenger detection sensor and passenger seat belt reminder and
warning buzzer
If luggage is placed on the front passenger seat, the front passenger
detection sensor may cause the warning light to flash and the warning
buzzer to sound, even if a passenger is not sitting in the seat.
If a cushion is placed on the seat, the sensor may not detect a passenger,
and the warning light may not operate properly.
Page 499 of 609
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473
5-2. Steps to take in an emergency
When trouble arises
IS250/220d/200d_EE
CAUTION
When the electric power steering warning light comes on
The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than usual when operating, firmly
hold and operate it using more force than usual.
NOTICE
If the fuel filter warning light comes on (vehicles with a manual transmis-
sion)
Never drive the vehicle with the warning light on. Continued driving with
water accumulated in the fuel filter will damage the fuel injection pump.
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5-2. Steps to take in an emergency
IS250/220d/200d_EE
Avoiding a discharged battery
Turn off the headlights and the audio system while the engine is off.
Turn off any unnecessary electrical components when the vehicle is run-
ning at a low speed for an extended period, such as in heavy traffic, etc.
Charging the battery
The electricity stored in the battery will discharge gradually even when
the vehicle is not in use, due to natural discharge and the draining effects
of certain electrical appliances. If the vehicle is left for a long time, the
battery may discharge, and the engine may be unable to start. (The bat-
tery recharges automatically during driving.)
CAUTION
Avoiding battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flam-
mable gas that may be emitted from the battery.
Make sure the jumper cable is connected to the correct terminal and that it
is not unintentionally in contact with any part other than the intended ter-
minal.
Do not allow the jumper cables to come into contact with the “+” and “-”
terminals.
Do not allow open flame or use matches, cigarette lighters or smoke near
the battery.
Page 575 of 609
545
6-1. Specifications
6
Vehicle specifica-
IS250/220d/200d_EE
Electrical system
Differential
*: Your Lexus vehicle is filled with “Toyota Genuine Differential Gear Oil”
at the factory. Use Lexus approved “Toyota Genuine Differential Gear
Oil” or an equivalent of matching quality to satisfy the above specifica-
tion. Please contact any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional for further details.
Battery
Specific gravity reading at
20C (68F):1.250 1.290 Fully charged
1.160 1.200 Half charged
1.060 1.100 Discharged
Charging rates
Quick charge
Slow charge15 A max.
5 A max.
Oil capacity
IS250
1.15 L (1.20 qt., 1.01 Imp. qt.)
IS220d and IS200d
1.35 L (1.42 qt., 1.19 Imp. qt.)
Oil type and viscosity*Toyota Genuine Differential Gear
Oil LT 75W-85 GL-5 or equivalent
Page 595 of 609
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IS250/220d/200d_EE
Abbreviation list
Abbreviation/Acronym list
ABBREVIA-
TIONSMEANING
ABSAnti-lock Brake System
AI-SHIFTArtificial Intelligence Shift
CRSChild Restraint System
DISPDisplay
DPFDiesel Particulate Filter system
DPNRDiesel Particulate-NOx Reduction System
DRLDaytime Running Light
ECTElectronic Controlled Transmission
ELREmergency Locking Retractor
EPSElectric Power Steering
LEDLight Emitting Diode
PCSPre-Crash Safety
SRSSupplemental Restraint System
TRCTraction Control
VDIMVehicle Dynamics Integrated Management
VINVehicle Identification Number
VSCVehicle Stability Control
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565
Alphabetical index
IS250/220d/200d_EE
Cruise control
Cruise control .......................198
Dynamic radar cruise control .....
202
Cup holder .................................359
Curtain shield airbags ................110
Customizable features ...............556
Daytime running light system ...188
Defogger*
Rear window.........................265
Side mirror ............................265
Dimension .................................534
Display
Dynamic radar cruise control .....
202
Satellite switch mode............365
Trip information ...................182
Warning message..................474
Do-it-yourself maintenance .......398
Door courtesy lights
Door courtesy lights .............351
Wattage .................................552
Door pockets .............................360
Doors
Door lock ....................37, 55, 58
Door windows ........................85
Double locking system .........101
Side mirrors ............................84
Driver's seat belt reminder light 470
Driving
Correct posture .....................108
Procedures ............................142
Driving position memory ............66Electric power steering ............. 224
Electronic key
If your electronic key battery is
discharged ......................... 519
Emergency, in case of
If a warning message is
displayed ........................... 474
If the engine will not start .... 515
If the shift lever cannot be
shifted from P .................... 517
If the vehicle has a discharged
battery................................ 524
If the warning buzzer sounds467
If the warning light turns on 467
If you have a flat tire ... 487, 499
If you lose your keys ........... 518
If you run out of fuel and
the engine stalls ................. 531
If you think something is
wrong................................. 465
If your electronic key does not
operate properly ................ 519
If your vehicle becomes stuck ...
532
If your vehicle has to be
stopped in an emergency ... 534
If your vehicle needs to be
towed ................................. 459
If your vehicle overheats ..... 528
Emergency flashers
Switch .................................. 458
Emergency tire puncture
repair kit ................................. 499
D
E
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.