2015 Lexus IS350 Trans

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IS350/250_U (OM53C50U)
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4-1. Before driving Driving the vehicle ......................146
Cargo and luggage.....................153
Vehicle load limits ........................156
Trailer towing ................................. 157
Dinghy towing .............................. 158
4-2. Driving procedures Engine (ign ition) switch .............159
Automatic transmission ............164
Turn signal lever ............................ 170
Parking brake ................................ 172
4-3. Operating the lights and wipers
Headlight switch .......................... 173
Automatic High Beam............... 176
Fog light switch .............................. 181
Windshield wipers and washer .......................................... 182
4-4. Refueling Opening the fuel tank cap ...... 188 4-5. Using the driving
support systems
Cruise control ...............................192
Dynamic radar cruise control ...........................................196
LDA (Lane Departure Alert)........208
Intuitive parking assist ................ 214
Lexus parking assist monitor.......................................... 221
Driving mode select switch ............................................237
Driving assist systems .............. 240
PCS (Pre-Collision System) ..........246
BSM (Blind Spot Monitor) ............. 252
• The Blind Spot Monitor function .................................... 255
• The Rear Cross Traffic Alert function .........................257
4-6. Driving tips Winter driving tips ..................... 260
4Driving

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For safety and security
IS350/250_U (OM53C50U)1-2. Theft deterrent system
The indicator light flashes after the
engine switch has been turned off to
indicate that the system is operating.
The indicator light stops flashing after
the engine switch has been turned to
ACCESSORY or IGNITION ON
mode to indicate that the system has
been canceled.
■System maintenance
The vehicle has a maintenance-free type engine immobilizer system.
■Conditions that may cause the system to malfunction
●If the grip portion of the key is in contact with a metallic object
●If the key is in close proximity to or touching
a key registered to the security system (key
with a built-in transponder chip) of another vehicle
Engine immobilizer system
The vehicle’s keys have built-in transponder chips that prevent the engine
from starting if a key has not been prev iously registered in the vehicle’s on-
board computer.
Never leave the keys inside the vehicle when you leave the vehicle.
This system is designed to help prev ent vehicle theft but does not guarantee
absolute security against all vehicle thefts.

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Driving4
IS350/250_U (OM53C50U)
4-1. Before drivingDriving the vehicle ...................... 146
Cargo and luggage .................... 153
Vehicle load limits ....................... 156
Trailer towing ................................. 157
Dinghy towing...............................158
4-2. Driving procedures Engine (ignition) switch ............ 159
Automatic transmission ............ 164
Turn signal lever ........................... 170
Parking brake .................................172
4-3. Operating the lights and wipers
Headlight switch ...........................173
Automatic High Beam ............... 176
Fog light switch.............................. 181
Windshield wipers and washer........................................... 182
4-4. Refueling Opening the fuel tank cap.......188 4-5. Using the driving support
systems
Cruise control .............................. 192
Dynamic radar cruise control .......................................... 196
LDA (Lane Departure Alert) ........208
Intuitive parking assist ................214
Lexus parking assist monitor ..........................................221
Driving mode select switch ........................................... 237
Driving assist systems............... 240
PCS (Pre-Collision System).......... 246
BSM (Blind Spot Monitor) ..... 252
• The Blind Spot Monitor function .................................... 255
• The Rear Cross Traffic Alert function......................... 257
4-6. Driving tips Winter driving tips ..................... 260

1494-1. Before driving
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Driving
IS350/250_U (OM53C50U)
CAUTION
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When driving on slippery road surfaces
●Sudden braking, acceleration and steering may cause tire slippage and reduce your
ability to control the vehicle.
●Sudden acceleration, engine braking due to shifting, or changes in engine speed
could cause the vehicle to skid.
●After driving through a puddle , lightly depress the brake pedal to make sure that the
brakes are functioning properly. Wet brake pads may prevent the brakes from func-
tioning properly. If the brakes on only on e side are wet and not functioning properly,
steering control may be affected.
■When shifting the shift lever
●Do not let the vehicle roll backward while the shift lever is in a driving position, or roll
forward while the shift lever is in R.
Doing so may cause the engine to stall or lead to poor brake and steering perfor-
mance, resulting in an acciden t or damage to the vehicle.
●Do not shift the shift lever to P while the vehicle is moving.
Doing so can damage the transmission and may result in a loss of vehicle control.
●Do not shift the shift lever to R while the vehicle is moving forward.
Doing so can damage the transmission and may result in a loss of vehicle control.
●Do not shift the shift lever to D while the vehicle is moving backward.
Doing so can damage the transmission and may result in a loss of vehicle control.
●Shifting the shift lever to N while the vehicle is moving will disengage the engine from
the transmission. Engine braking is not available when N is selected.
●Be careful not to shift the shift lever with the accelerator pedal depressed. Shifting the
shift lever to a gear other than P or N may lead to unexpected rapid acceleration of
the vehicle that may cause an accident and result in death or serious injury.
■If you hear a squealing or scraping noise (brake pad wear limit indicators)
Have the brake pads checked and replaced by your Lexus dealer as soon as possible.
Rotor damage may result if the pads are not replaced when needed.
Front brakes only: Moderate levels of brake pad and disc wear allow enhanced front
braking power. As a result, the discs may wear more quickly than conventional brake
discs. Therefore, when replacing the brake pads, Lexus recommends that you also
have the thickness of the discs measured.
It is dangerous to drive the vehicle when the wear limits of the brake pads and/or those
of the brake discs are exceeded.

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.

1534-1. Before driving
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Driving
IS350/250_U (OM53C50U)
Cargo capacity depends on the total weight of the occupants.
(Cargo capacity) = (Total load capacity) — (Total weight of occupants)
Steps for Determining Correct Load Limit —
(1) Locate the statement “The combined weight of occupants and cargo should never exceed XXX kg or XXX lbs.” on your vehicle’s placard.
(2) Determine the combined weight of the driver and passengers that will be
riding in your vehicle.
(3) Subtract the combined weight of the driver and passengers from XXX kg or
XXX lbs.
(4) The resulting figure equals the ava ilable amount of cargo and luggage load
capacity.
For example, if the “XXX” amount equals 1400 lbs. and there will be five 150
lb passengers in your vehicle, the am ount of available cargo and luggage load
capacity is 650 lbs. (1400  750 (5 150) = 650 lbs.)
(5) Determine the combined weight of luggage and cargo being loaded on the
vehicle. That weight may not safely exceed the available cargo and luggage
load capacity calculated in Step 4.
(6) If your vehicle will be towing a trailer, load from your trailer will be transferred
to your vehicle. Consult this manual to determine how this reduces the avail-
able cargo and luggage load capacity of your vehicle.
( P. 1 5 6 )
Lexus does not recommend towing a trailer with your vehicle. Your vehicle is not
designed for trailer towing.
Cargo and luggage
Take notice of the following information about storage precautions, cargo
capacity and load:
Capacity and distribution

1644-2. Driving procedures
IS350/250_U (OM53C50U)
While the engine switch is in IGNITION ON mode, move the shift lever
with the brake pedal depressed.
When shifting the shift lever between P and D, make sure that the vehicle is com-
pletely stopped.
Automatic transmission
Shifting the shift lever

1674-2. Driving procedures
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Driving
IS350/250_U (OM53C50U)
To enter M mode, shift the shift lever to M. Gears can then be selected by oper-
ating the shift lever or paddle shift switches, allowing you to drive in the gear of
your choice.
Upshifting
Downshifting
The gear changes once every time the
shift lever or paddle shift switch is oper-
ated.
8-speed models: Th e selected gear,
from M1 to M8, will be fixed and dis-
played in the meter.
6-speed models: The selected gear,
from M1 to M6, will be fixed and dis-
played in the meter.
When in the M position, the gear will no t change unless the shift lever or pad-
dle shift switches are operated.
However, even when in the M position, the gears will be automatically
changed in the following situation:
●When vehicle speed drops (downshift only).
●When the automatic transmission flui d or engine coolant temperature is
low.
●When automatic transmission fluid temperature is high.
●When the needle of the tachometer is in the red zone (the range which
exceeds the allowable revs of the engine).
In the following situations, the gear will not shift even if the shift lever or paddle
shift switches are operated.
●“1st Gear not available due to slippe ry road surface” is displayed on the
multi information display.
●The vehicle speed is low (upshift only).
Selecting gears in the M position
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