key battery Lexus IS250 2007 Operating the lights and windshield wipers / LEXUS 2007 IS350/250 (OM53578U) User Guide

210
3-3. Using the interior lights
■Illuminated entry system
The following interior lights come on automatically when you approach the vehicle
with the electronic key on your person. Note that the illuminated entry system oper-
ates only when the interior light switch (door position ON/OFF) is ON.
●Front overhead courtesy light
●Rear overhead courtesy light
●Outer foot light
The following lights turn on when any of the doors is unlocked or opened.
●Front interior light
●Rear interior lights
●Front foot well lighting
●Front door courtesy lighting
●Front scuff lighting
The following lights turn on for approximately 15 seconds when the engine switch is
turned to OFF from the IG-ON or ACC mode. (The lights turn off immediately if
the doors are locked or the engine switch is set to ACC or IG-ON mode.)
●Front overhead courtesy light
●Rear overhead courtesy light
■To prevent the battery from being discharged
If the overhead courtesy lights and interior lights remain ON when the door is not
fully closed and the interior light switch (door position ON/OFF) is ON, the lights
will go off automatically after 20 minutes.
■Customization
Setting (e.g. The time elapsed before lights turn off) can be changed. (
P. 406)
Front door courtesy lighting
Front scuff lighting (if equipped)
Outer foot lights
Turning the instrument panel light control knob fully to the left disables the
shift lever lighting and front foot well lighting.

Maintenance and care4
251
4-1. Maintenance and care ......... 252
Cleaning and protecting
the vehicle exterior ................ 252
Cleaning and protecting
the vehicle interior ................. 254
4-2. Maintenance ........................... 257
Maintenance
requirements............................ 257
General maintenance ............. 259
Emission inspection and
maintenance (I/M)
programs ................................... 262
4-3. Do-it-yourself
maintenance ......................... 263
Do-it-yourself service
precautions ............................... 263
Hood............................................... 266
Positioning the jack................... 267
Engine compartment............... 269
Tires ................................................. 283
Tire inflation pressure............... 293
Wheels........................................... 297Air conditioning filter .............. 299
Electronic key battery ............. 302
Checking and replacing
fuses............................................. 304
Headlight aim .............................. 318
Light bulbs..................................... 319

302
4-3. Do-it-yourself maintenance
Electronic key battery
Replace the battery with a new one if it is discharged.
■You will need the following items:
●Flathead screwdriver
●Small Phillips-head screwdriver
●Lithium battery (CR1632)
■Replacing the battery
Take out the mechanical key.
Remove the cover.
Remove the depleted battery.
Insert a new battery with the +
terminal facing up.
STEP1
STEP2
STEP3

303
4-3. Do-it-yourself maintenance
4
Maintenance and care
■If the electronic key battery is discharged
The following symptoms may occur.
●The smart access system with push-button start and wireless remote control will
not function properly.
●The operational range is reduced.
■Use a CR1632 lithium battery
●Batteries can be purchased at your Lexus dealer, jewelers, or camera stores.
●Replace only with the same or equivalent type recommended by a Lexus dealer.
●Dispose of used batteries according to the local laws.
CAUTION
■Removed battery and other parts
Keep away from children.
These parts are small and if swallowed by a child they can cause choking.
NOTICE
■For normal operation after replacing the battery
Observe the following precautions to prevent accidents.
●Always work with dry hands.
Moisture may cause the battery to rust.
●Do not touch or move any other components inside the remote control.
●Do not bend either of the battery terminals.

When trouble arises5
327
5-1. Essential information ........... 328
If your vehicle needs to be
towed........................................... 328
If you think something is
wrong .......................................... 335
Fuel pump shut off system ..... 336
Event data recorder ................. 337
5-2. Steps to take in an
emergency ........................... 339
If a warning light turns on
or a warning buzzer
sounds... .................................... 339
If a warning message is
displayed .................................... 344
If you have a flat tire ................. 358
If the engine will not start ....... 366
If the shift lever cannot
be shifted from P..................... 367
If you lose your keys ................ 368
When the electronic key does
not operate properly............. 369
If the vehicle battery is
discharged ................................ 372If your vehicle overheats ........ 375
If the vehicle becomes
stuck ............................................. 377

356
5-2. Steps to take in an emergency
Interior
buzzerExterior
buzzerWarning messageDetailsCorrection
procedure
Once3 times
(For vehicles with an
automatic transmission)
(Flashing)
Indicates that the
driver’s door has
been opened or
closed with the
shift lever in P, the
engine switch in
any mode other
than OFF and the
electronic key
outside of the
detection area.
Turn the engine
switch OFF or
confirm the loca-
tion of the elec-
tronic key.
OnceCon-
tinuous
(Displayed alternately)
(For vehicles with an
automatic transmission)
(Flashing)
Indicates that the
driver’s door has
been opened or
closed (with the
shift lever out of in
P, the engine
switch in any
mode other than
OFF and the elec-
tronic key outside
of the detection
area).
• Shift the shift
lever to P.
•Confirm the
location of the
electronic key.
Once
(Flashing)
Indicates that the
key battery is low.Replace the bat-
tery. (P. 3 0 2 )

370
5-2. Steps to take in an emergency
Starting the engine
For vehicles with an automatic transmission: Put the shift lever in P
and apply the brakes.
For vehicles with a manual transmission: Depress the clutch
pedal.
Hold the electronic key close to
the engine switch (within 0.4 in.
[10 mm]). Make sure that the but-
ton side of the key is facing away
from the engine switch.
An alarm will sound to indicate that
the start function cannot detect the
key with the depleted battery if any
of the doors will be opened and
closed while this operation.
For vehicles with an automatic transmission: Press the engine
switch within 5 seconds [after the buzzer sounds], keeping the
brake pedal depressed.
For vehicles with a manual transmission: Press the engine switch
within 5 seconds [after the buzzer sounds], keeping the clutch
pedal depressed.
In the event that the engine still cannot be started, contact your Lexus
dealer.
STEP1
STEP2
STEP3

5
When trouble arises
371
5-2. Steps to take in an emergency
■Replacing the key battery
As this procedure is the temporary measure, it is recommended that the electronic
battery be replaced immediately. (P. 3 0 2 )

386
6-1. Specifications
Electrical system
Differential
Battery
Specific gravity reading at
68F (20C):12.6 12.8 V Fully charged
12.2 
12.4 V Half charged
11.8 
12.0 V Discharged
(Voltage checked 20 minutes after the
key is removed with all the lights turned
off)
Charging rates5A max.
Oil capacity
Front0.74 qt. (0.70 L, 0.61 lmp.qt.)
Rear
IS350:
1.42 qt. (1.35 L, 1.19 lmp.qt.)
IS250 (2WD models):
1.20 qt. (1.15 L, 1.01 lmp.qt.)
IS250 (AWD models):
1.10 qt. (1.05 L, 0.92 lmp.qt.)
Oil type and
viscosity
IS250 (AWD)
Hypoid gear oil API GL-5
Above 0F (-18C): SAE90
Below 0F (-18C): SAE80W
or SAE80W-90
Others
Toyota Genuine Differential
Gear Oil LT 75W-85 GL-5,
Toyota Genuine Differential
Synthetic Gear Oil or equivalent

417
Alphabetical index
Care
Exterior ................................................... 252
Interior..................................................... 254
Seat belts ............................................... 255
Cargo capacity ....................................... 157
Cargo hooks .......................................... 238
CD changer .............................................189
CD player..................................................189
Chains.......................................................... 161
Child restraint system (CRS)
Booster seats, definition..................... 77
Booster seats, installation ................... 81
Convertible seats, definition ............ 77
Convertible seats, installation .......... 81
Front passenger occupant
classification system ......................... 72
Infant seats, definition .......................... 77
Infant seats, installation......................... 81
Installing CRS with lower
anchorages .......................................... 84
Installing CRS with seatbelts ............ 81
Installing CRS with top straps ........ 85
Child safety
Airbag precautions ..............................67
Battery precautions................ 281, 374
Child restraint system ......................... 77
Child-protectors................................... 20
How your child should wear
the seatbelt ............................................ 37
Installing child restraints .................... 80
Moon roof precautions ..................... 50
Power window lock switch ............. 45
Power window precautions............. 47
Removed electronic key battery
precautions ....................................... 303
Seat belt comfort guide..................... 35
Seat belt extender precautions ..... 39Seat belt precautions ..........................38
Seat heater precautions........229, 231
Trunk precautions................................. 25
Child-protectors ...................................... 20
Cigarette lighter.................................... 226
Cleaning
Exterior.................................................... 252
Interior ..................................................... 254
Seat belts ................................................255
Clock ...........................................................221
Coat hooks .............................................. 236
Compass .................................................. 246
Condenser .............................................. 278
Console box ............................................ 214
Cooling system
Engine overheating...........................375
Cornering assist sensors .................... 142
Cruise control
Cruise control....................................... 130
Dynamic radar cruise control....... 133
Cup holder ............................................... 216
Curtain shield airbags..............................61
Customizable features .......................406
Daytime running light system ........... 123
Defogger
Rear window ......................................... 178
Side mirror.............................................. 178
Dimension............................................... 380
Dinghy towing ................................166, 167
Display
Dynamic radar cruise control....... 133
Satellite switch mode ....................... 222
Trip information ..................................... 119
Warning message ............................. 344
Do-it-yourself maintenance ............. 263C
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