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IS250C/350C_U
2-1. Driving proceduresDriving the vehicle ........................ 138
Engine (ignition) switch .............. 147
Automatic transmission................ 151
Turn signal lever ............................ 158
Parking brake ................................. 159
Horn.................................................... 160
2-2. Instrument cluster Gauges and meters ....................... 161
Indicators and warning lights................................................. 167
Multi-information display............. 171
2-3. Operating the lights and windshield wipers
Headlight switch ............................ 176
Fog light switch .............................. 180
Windshield wipers and washer............................................. 182
Headlight cleaner switch ........... 189 2-4. Using other driving systems
Cruise control ................................ 190
Dynamic radar cruise control............................................. 194
Intuitive parking assist ............... 208
Driving assist systems.................. 214
Hill-start assist control ............... 220
PCS (Pre-Collision System) ........... 222
2-5. Driving information Cargo and luggage ..................... 229
Vehicle load limits........................ 232
Winter driving tips ....................... 233
Trailer towing ................................. 237
Dinghy towing ............................... 238
2When driving
When driving2
137
IS250C/350C_U
2-1. Driving proceduresDriving the vehicle.................. 138
Engine (ignition) switch ......... 147
Automatic transmission ......... 151
Turn signal lever ....................... 158
Parking brake ........................... 159
Horn ............................................ 160
2-2. Instrument cluster Gauges and meters ................. 161
Indicators and warning lights ......................................... 167
Multi-information display ...... 171
2-3. Operating the lights and windshield wipers
Headlight switch....................... 176
Fog light switch ....................... 180
Windshield wipers and washer ..................................... 182
Headlight cleaner switch...... 189 2-4. Using other driving
systems
Cruise control.......................... 190
Dynamic radar cruise control ..................................... 194
Intuitive parking assist .......... 208
Driving assist systems ............ 214
Hill-start assist control ......... 220
PCS (Pre-Collision System) ...... 222
2-5. Driving information Cargo and luggage ............... 229
Vehicle load limits .................. 232
Winter driving tips ................. 233
Trailer towing .......................... 237
Dinghy towing......................... 238
206
2-4. Using other driving systems
IS250C/350C_U
CAUTION
■To avoid inadvertent cruise control activation
Switch the cruise control off using the “ON-OFF” button when not in use.
■Situations unsuitable for dynamic radar cruise control
Do not use dynamic radar cruise control in any of the following situations.
Doing so may result in inappropriate speed control and could cause an accident
resulting in death or serious injury.
●In heavy traffic
●On roads with sharp bends
●On winding roads
●On slippery roads, such as those covered with rain, ice or snow
●On steep downhills, or where there are sudden changes between sharp up and
down gradients
Vehicle speed may exceed the set speed when driving down a steep hill.
●At entrances to expressways
●When weather conditions are bad enough that they may prevent the sensors
from functioning correctly (fog, snow, sandstorm, heavy rain, etc.)
●When an approach warning buzzer is heard often
●During emergency towing
■When the sensor may not be correctly detecting the vehicle ahead
Apply the brakes as necessary when any of the following types of vehicles are in
front of you.
As the sensor may not be able to correctly detect these types of vehicles, the
approach warning (→P. 200) will not be activated, and a fatal or serious accident
may result.
●Vehicles that cut in suddenly
●Vehicles traveling at low speeds
●Vehicles that are not moving
●Vehicles with small rear ends (trailers with no load on board etc.)
●Motorcycles traveling in the same lane
230
2-5. Driving information
IS250C/350C_U(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 available cargo and luggage load capacity of your vehi-
cle.
Lexus does not recommend towing a trailer with your vehicle. Your vehicle is
not designed for trailer towing.
Calculation formula for your vehicle
Cargo capacity
Total load capacity (vehicle
capacity weight) (→P. 5 5 2 )
When 2 people with the combined weight of A lb. (kg) are riding in your
vehicle, which has a total load capacity (vehicle capacity weight) of B lb.
(kg), the available amount of cargo and luggage load capacity will be C
lb. (kg) as follows:
B*
2 lb. (kg) - A*1 lb. (kg) = C*3 lb. (kg)
*
1: A =Weight of people
*2: B =Total load capacity
*3: C =Available cargo and luggage load
In this condition, if 2 more passengers with the combined weight of D lb. (kg)
get on, the available cargo and luggage load will be reduced E lb. (kg) as fol-
lows:
C lb. (kg) - D*4 lb. (kg) = E*5 lb. (kg)
*
4: D =Additional weight of people
*5: E =Available cargo and luggage load
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2-5. Driving information
IS250C/350C_U
Vehicle load limits
■Total load capacity and seating capacity
These details are also described on the tire and loading information label.
( → P. 441)
CAUTION
■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.
Vehicle load limits include total load capacity, seating capacity, towing
capacity and cargo capacity.
■Total load capacity (vehic le capacity weight): (→P. 5 5 2 )
Total load capacity means the combined weight of occupants, cargo and
luggage.
■Seating capacity: 4 occupants (Front 2, Rear 2)
Seating capacity means the maximum number of occupants whose esti-
mated 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.
237
2-5. Driving information
2
When driving
IS250C/350C_U
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 Lexus is not designed
for trailer towing or for the use of tow hitch mounted carriers.
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Alphabetical index
IS250C/350C_U
TachometerTacho indicator...................................... 161
Tachometer ............................................. 161
Tail lights
Switch ........................................................ 176
Talk switch* ............................................. 326
Telephone switch*................................ 326
Theft deterrent system
Alarm ........................................................ 100
Engine immobilizer system ............. 98
Theft prevention labels ........................ 103
Tire inflation pressure .......................... 441
Tire information Glossary................................................. 579
Size ........................................................... 576
Tire identification number ............. 575
Uniform tire quality grading ......... 577
Tires
Chains ..................................................... 233
Checking ................................................. 431
If you have a flat tire............................513
Inflation pressure.................................. 441
Inflation pressure sensor................ 432
Information............................................ 573
Replacing.................................................513
Rotating tires .......................................... 431
Run-flat tire............................................ 522
Size ...........................................................563
Snow tires .............................................. 233
Spare tire..................................................513
Tools ............................................................ 513
Total load capacity ............................... 232 Towing
Dinghy towing .................................... 238
Emergency towing ........................... 483
Trailer towing ....................................... 237
TRAC ..........................................................214
Traction control.......................................214
Transmission shift switches...... 153, 155
Trip meter ................................................... 161
Trunk Opener ....................................................... 51
Trunk light Trunk light ................................................. 52
Wattage ................................................. 568
Turn signal lights
Replacing light bulbs ....................... 468
Switch........................................................158
Wattage ................................................. 568
USB port* ................................................ 287
Vanity lights Vanity lights.......................................... 364
Wattage ................................................. 568
Vanity mirrors ........................................ 364
VDIM...........................................................214
Vehicle data recordings ......................... 21
Vehicle dynamics integrated management .........................................214
Vehicle identification number ......... 553
Vehicle stability control .......................214
Ventilators ............................................... 372
Voice command switch* ................... 327
VSC ............................................................. 214T
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