differential Lexus IS250 2015 TIPS FOR THE NAVIGATION SYSTEM / LEXUS 2015 IS250/350 OWNERS MANUAL (OM53C50U)

1524-1. Before driving
IS350/250_U (OM53C50U)
NOTICE
■When driving the vehicle
●Do not depress the accelerator and brake peda ls at the same time during driving, as
this may restrain driving torque.
●Do not use the accelerator pedal or depress the accelerator and brake pedals at the
same time to hold the vehicle on a hill.
■When parking the vehicle
Always shift the shift lever to P. Failure to do so may cause the vehicle to move or the
vehicle may accelerate suddenly if the accelerator pedal is ac cidentally depressed.
■Avoiding damage to vehicle parts
●Do not turn the steering wheel fully in either direction and hold it there for an
extended period of time.
Doing so may damage the power steering motor.
●When driving over bumps in the road, drive as slowly as possible to avoid damaging
the wheels, underside of the vehicle, etc.
■If you get a flat tire while driving
A flat or damaged tire may cause the follo wing situations. Hold the steering wheel
firmly and gradually depress the brak e pedal to slow down the vehicle.
●It may be difficult to control your vehicle.
●The vehicle will make abnormal sounds or vibrations.
●The vehicle will lean abnormally.
Information on what to do in case of a flat tire ( P. 4 8 6 )
■When encountering flooded roads
Do not drive on a road that has flooded after heavy rain etc. Doing so may cause the
following serious damage to the vehicle:
●Engine stalling
●Short in electrical components
●Engine damage caused by water immersion
In the event that you drive on a flooded road and the vehicle is flooded, be sure to have
your Lexus dealer check the following:
●Brake function
●Changes in quantity and quality of oil and fluid used for the engine, transmission,
transfer (AWD models), differential, etc.
●Lubricant condition for the propeller shaft, bearings and suspension joints (where
possible), and the function of all joints, bearings, etc.

5179-1. Specifications
9
Vehicle specifications
IS350/250_U (OM53C50U)
*: The fluid capacity is a reference quantity.If replacement is necessary, contact your Lexus dealer.
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 match-
ing quality to satisfy the above specification. Please contact your Lexus dealer for further
details.
Automatic transmission
IS250IS350
Fluid capacity*2WD7.9 qt. (7.5 L, 6.6 Imp. qt.)10.0 qt. (9.5 L, 8.4 Imp. qt.)
AW D9.9 qt. (9.4 L, 8.3 Imp. qt.)10.6 qt. (10.0 L, 8.8 Imp. qt.)
Fluid typeTo y o t a G e n u i n e AT F W S
NOTICE
■Automatic transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may cause deterioration
in shift quality, locking up of your transm ission accompanied by vibration, and ulti-
mately damage the transmission of your vehicle.
Front differential (AWD models)
Oil capacity 0.74 qt. (0.70 L, 0.61 Imp. qt.)
Oil type and viscosity
Hypoid gear oil API GL-5
Above 0F (-18 C): SAE90
Below 0 F (-18 C): SAE80W or SAE80W-90
Rear differential
Oil capacityIS2501.20 qt. (1.15 L, 1.01 Imp. qt.)
IS3501.42 qt. (1.35 L, 1.19 Imp. qt.)
Oil type and viscosityToyota Genuine Differential gear oil LT
75W-85 GL-5 or equivalent

568Alphabetical index
IS350/250_U (OM53C50U)
Daytime running light system ............ 174
DefoggerFront windshield .................................362
Outside rear view mirrors .............362
Rear window ........................................362
Differential Front differential ................................... 517
Rear differential .................................... 517
Dimension .................................................512
Dinghy towing......................................... 158
Display Drive information .................................. 87
Dynamic radar cruise control....... 196
LDA (Lane Departure Alert) ...... 209
Multi-information display ..................86
Warning message ............................. 472
Distance ...................................................... 88
Do-it-yourself maintenance ............. 409
Door courtesy lights Location ................................................. 368
Wattage ................................................... 521 Doors ..........................................................103
Automatic door locking and unlocking system ................... 106
Door glasses ......................................... 138
Door lock................................................ 105
Open door warning buzzer ..........104
Open door warning light .............. 467
Outside rear view mirrors ..............135
Rear door child-protector ............. 106
Drive information .....................................87
Drive info 1/Drive info 2 ....................... 88
Driver’s seat position memory.......... 123
Driving ........................................................ 146 Break-in tips ........................................... 147
Correct driving posture .................... 28
Driving mode select switch ...........237
Procedures .............................................146
Winter drive tips ................................ 260
Dynamic radar cruise control ........... 196
D

575Alphabetical index
IS350/250_U (OM53C50U)
Odometer ....................................................81
OilEngine oil................................................. 514
Front differential oil............................. 517
Rear differential oil .............................. 517
Opener Hood ........................................................... 411
Trunk ......................................................... 109
Outer foot lights Location ................................................. 368
Replacing light bulbs ........................452
Wattage ................................................... 521
Outside rear view mirrors ................. 135 Adjusting and folding........................ 135
Blind spot monitor............................. 252
Linked mirror function when reversing ................................. 136
Mirror position memory ...................123
Outside rear view mirror defoggers ............................362
Outside temperature...............................81
Overheating, Engine .......................... 506 Paddle shift switches............................. 166
Parking assist sensors
(intuitive parking assist).................... 214
Parking brake .......................................... 172
Parking lights ........................................... 173 Light switch............................................. 173
Replacing light bulbs ....................... 452
PCS (Pre-Collision System).............246 Function .................................................. 246
PCS OFF switch .................................247
Warning light ....................................... 467
Personal lights ....................................... 369 Wattage ................................................... 521
Pop-up display ......................................... 88
Power easy access system ................. 123
Power outlet ........................................... 378
Power steering (Electric power steering system) .................................. 241 Warning light ....................................... 467
Power windows.......................................138 Door lock linked window operation ...........................140
Jam protection function....................139
Operation............................................... 138
Window lock switch ......................... 138
Pre-Collision System (PCS).............246 Function .................................................. 246
PCS OFF switch .................................247
Warning light ....................................... 467
OP
*: For vehicles with a navigation system, refer to the
“NAVIGATION SYSTEM OWNER’S MANUAL”.