2018 Lexus IS350 trailer

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IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
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4-1. Before driving
Driving the vehicle ......................164
Cargo and luggage .................... 172
Vehicle load limits .......................175
Trailer towing ................................ 176
Dinghy towing ............................... 177
4-2. Driving procedures Engine (ign ition) switch .............178
Automatic transmission ........... 183
Turn signal lever .......................... 190
Parking brake ................................192
ASC (Active Sound Control) .........193
4-3. Operating the lights and wipers
Headlight switch ..........................194
Automatic High Beam.............. 198
Windshield wipers and washer ......................................... 202
4-4. Refueling Opening the fuel tank cap ...... 210 4-5. Using the driving support
systems
Lexus Safety System+ ................ 214
PCS (Pre-Collision System) ........... 221
LDA (Lane Departure Alert with steering co ntrol) ............ 232
Dynamic radar cruise control ......................................... 239
Intuitive parking assist................251
Lexus parking assist monitor........................................ 260
BSM (Blind Spot Monitor)......276
• BSM function.........................280
• RCTA function...................... 283
Driving mode select switch ...........................................288
Driving assist systems .............. 292
4-6. Driving tips Winter driving tips..................... 297
4Driving

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Driving4
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
4-1. Before driving
Driving the vehicle ...................... 164
Cargo and luggage .................... 172
Vehicle load limits ....................... 175
Trailer towing ................................ 176
Dinghy towing ...............................177
4-2. Driving procedures Engine (ignition) switch ............ 178
Automatic transmission............ 183
Turn signal lever........................... 190
Parking brake ............................... 192
ASC (Active Sound Control)......... 193
4-3. Operating the lights and wipers
Headlight switch .......................... 194
Automatic High Beam .............. 198
Windshield wipers and washer..........................................202
4-4. Refueling Opening the fuel tank cap....... 210 4-5. Using the driving support
systems
Lexus Safety System+ ................214
PCS (Pre-Collision System) ...........221
LDA (Lane Departure Alert with steering control) ............ 232
Dynamic radar cruise control ......................................... 239
Intuitive parking assist ............... 251
Lexus parking assist monitor ........................................ 260
BSM (Blind Spot Monitor) ..... 276
• BSM function .........................280
• RCTA function......................283
Driving mode select switch .......................................... 288
Driving assist systems .............. 292
4-6. Driving tips Winter driving tips ..................... 297

1724-1. Before driving
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
Cargo capacity depends on the total weight of the occupants.
(Cargo capacity) = (Total load capac ity) — (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 th e driver and passengers that will be rid-
ing in your vehicle.
(3) Subtract the combined weight of th e 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 amou nt 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. 175)
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 informat ion about storage precautions, cargo
capacity and load:
Capacity and distribution

1754-1. Before driving
4
Driving
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
◆Total load capacity (vehicle capacity weight): ( →P. 584)
Total load capacity means the combined weight of occupants, cargo and lug-
gage.
◆Seating capacity: 5 occupants (Front 2, Rear 3)
Seating capacity means the maximum number of occupants whose estimated
average weight is 150 lb. (68 kg) per person.
◆Towing capacity
Lexus does not recommend towing a trailer with your vehicle.
◆Cargo capacity
Cargo capacity may increase or decrease depending on the weight and the
number of occupants.
■Total load capacity and seating capacity
These details are also described on the tire and loading information label. (→P. 493)
Vehicle load limits
Vehicle load limits include total load capacity, seating capacity, towing capac-
ity and cargo capacity.
WARNING
■Overloading the vehicle
Do not overload the vehicle.
It may not only cause damage to the tires, but also degrade steering and braking ability,
resulting in an accident.

1764-1. Before driving
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
Trailer towing
Lexus does not recommend towing a trailer with your vehicle. Lexus also does
not recommend the installation of a tow hitch or the use of a tow hitch carrier
for a wheelchair, scooter, bicycle, etc. Your vehicle is not designed for trailer
towing or for the use of tow hitch mounted carriers.

2014-3. Operating the lights and wipers
4
Driving
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
●Bicycles or similar vehicles may not be detected.
●In the following situations the system may not be able to correctly detect the surround-
ing brightness level. This may cause the lo w beams to remain on or the high beams to
flash or dazzle pedestrians or vehicles ahead. In such a case, it is necessary to manually
switch between the high and low beams.
• When driving in inclement weather (heavy rain, snow, fog, sandstorms, etc.)
• When the windshield is obscured by fog, mist, ice, dirt, etc.
• When the windshield is cracked or damaged
• When the camera sensor is deformed or dirty
• When the temperature of the camera sensor is extremely high
• When the surrounding brightness level is equal to that of headlights, tail lights or fog
lights
• When headlights or tail lights of vehicles ahead are turned off, dirty, changing color,
or not aimed properly
• When the vehicle is hit by water, snow, dust, etc. from a preceding vehicle
• When driving through an area of intermittently changing brightness and darkness
• When frequently and repeated ly driving ascending/descending roads, or roads with
rough, bumpy or uneven surfaces (such as stone-paved roads, gravel roads, etc.)
• When frequently and repeatedly taking curves or driving on a winding road
• When there is a highly reflective object ahea d of the vehicle, such as a sign or mirror
• When the back of a preceding vehicle is highly reflective, such as a container on a
truck
• When the vehicle's headlights are damaged or dirty, or are not aimed properly
• When the vehicle is listing or titling due to a flat tire, a trailer being towed, etc.
• When the headlights are changed between the high beams and low beams repeat- edly in an abnormal manner
• When the driver believes that the high beams may be flashing or dazzling pedestri-
ans or other drivers
■Temporarily lowering sensor sensitivity
The sensitivity of the sensor can be temporarily lowered.
Turn the engine switch off while the following conditions are met.
• The headlight switch is in or .
• The headlight switch lever is in high beam position.
• Automatic High Beam switch is on.
Turn the engine switch to IGNITION ON mode.
Within 30 seconds after , repeat pulling the he adlight switch lever to the original
position then pushing it to the high beam position quickly 10 times, then leave the lever
in high beam position.
If the sensitivity is changed, the Automatic High Beam indicator is turn on and off 3
times.
Automatic High Beam (head lights) may turn on even the vehicle is stopped.
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2294-5. Using the driving support systems
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Driving
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
■Situations in which the system may not operate properly
●In some situations such as the following, a vehicle may not be detected by the radar
sensor and camera sensor, preventing the system from operating properly:
• If an oncoming vehicle is approaching your vehicle
• If a vehicle ahead is a motorcycle or bicycle
• When approaching the side or front of a vehicle
• If a preceding vehicle has a small rear end, such as an unloaded truck
• If a vehicle ahead is carrying a load which protrudes past its rear bumper
• If a vehicle ahead is irregularly shap ed, such as a tractor or side car
• If the sun or other light is shin ing directly on a vehicle ahead
• If a vehicle cuts in front of your ve hicle or emerges from beside a vehicle
• If a vehicle ahead makes an abrupt maneuver (such as sudden swerving, accelera-
tion or deceleration)
• When suddenly cutting behind a preceding vehicle
• When driving in inclement we ather such as heavy rain, fog, snow or a sandstorm
• When the vehicle is hit by water, sn ow, dust, etc. from a vehicle ahead
• When driving through steam or smoke
• When driving in a place where the surrounding brightness changes suddenly, such as at the entrance or exit of a tunnel
• When a very bright light, such as the sun or the headlights of on coming traffic, shines
directly into the camera sensor
• When the surrounding area is dim, such as at dawn or dusk, or while at night or in a tunnel
• If a preceding vehicle has a low rear end,
such as a low bed trailer
• If a vehicle ahead has extremely high ground clearance
• When a vehicle ahead is not directly in front of your vehicle

653Alphabetical index
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
Tachometer .................................................81
Tail lights.....................................................194
Light switch ............................................ 194
Replacing light bulbs ....................... 509
Talk switch
*............................................ 373
Telephone switches
*.......................... 373
Theft deterrent system Alarm............................................................. 71
Engine immobiliz er system..............68
Luggage security system .................123
Theft prevention labels ....................... 74
Tire inflation pressure ......................... 493 Maintenance data ............................. 593
Tire inflation pressure display function ............................................... 484
Warning light .......................................524
Tire information ..................................... 599 Glossary ................................................ 606
Size ........................................................... 602
Tire identification number............... 601
Uniform Tire Quality Grading.............................................. 604
Tire pressure warning system ......... 484 Initializing............................................... 485
Installing tire pressure warning valves and transmitters ............... 484
Registering ID codes ...................... 485
Tire pressure warning reset switch................................................... 485
Warning light .......................................524 Tires ........................................................... 483
Chains ..................................................... 298
Checking ...............................................483
If you have a flat tire ..........................556
Inflation pressure................................593
Information............................................599
Replacing ...............................................556
Rotating tires ........................................ 484
Size ...........................................................593
Snow tires .............................................. 299
Spare tire................................................556
Tire inflation pressure display function................................................ 484
Tire pressure warning system ..... 484
Warning light ....................................... 524
Tools ...........................................................557
Top tether strap ........................................64
Total load capacity................................. 175
Towing Dinghy towing ....................................... 177
Emergency towing .............................514
Towing eyelet ........................................ 517
Trailer towing......................................... 176
TRAC (Traction Control)..................292
Transmission ............................................183 Automatic transmission ................... 183
Driving mode select switch ..........288
If the shift lever cannot be shifted from P .................................... 188
M mode ................................................... 186
Paddle shift switches......................... 185
T
*: For vehicles with a naviga tion system, refer to the
“NAVIGATION SYSTEM OWNER’S MANUAL”.