Lexus GS350 2017 Owner's Manual

381
4-5. Using the driving support systems
4
Driving
GS350_200t_GS F_OM_OM30F83E_(EE)
WARNING
■The ABS does not operate effectively when
●The limits of tire gripping performance have been exceeded (such as excessively
worn tires on a snow covered road).
●The vehicle hydroplanes while driving at high speed on wet or slick roads.
■Stopping distance when the ABS is operat ing may exceed that of normal conditions
The ABS is not designed to shorten the vehicle’s stopping distance. Always maintain a
safe distance from the vehicle in front of you, especially in the following situations:
●When driving on dirt, gravel or snow-covered roads
●When driving with tire chains
●When driving over bumps in the road
●When driving over roads with potholes or uneven surfaces
■TRC may not operate effectively when
Directional control and power may not be achievable while driving on slippery road
surfaces, even if the TRC system is operating.
Drive the vehicle carefully in conditions where stability and power may be lost.
■Hill-start assist control does not operate effectively when
●Do not overly rely on the hill-start assist co ntrol. The hill-start assist control may not
operate effectively on steep inclines and roads covered with ice.
●Unlike the parking brake, hill-start assist co ntrol is not intended to hold the vehicle
stationary for an extended period of time. Do not attempt to use hill-start assist con-
trol to hold the vehicle on an incline, as doing so may lead to an accident.
■When the VSC is activated
The slip indicator light flashes. Always drive carefully. Reckless driving may cause an
accident. Exercise particular care when the indicator light flashes.
■When the TRC/VSC systems are turned off
Be especially careful and drive at a speed appropriate to the road conditions. As these
are the systems to help ensure vehicle stability and driving force, do not turn the TRC/
VSC systems off unless necessary.

3824-5. Using the driving support systems
GS350_200t_GS F_OM_OM30F83E_(EE)
WARNING
■Expert mode precautions (GS F)
●Do not use on public roads.
●Use only when the road conditions and safety of the surrounding area can be
ensured.
●Proper use of expert mode re quires a professional level of driving skill. When using
expert mode, always check the road conditions and surrounding area and drive more
carefully than usual.
■Replacing tires
Make sure that all tires are of the specified size, brand, tread pattern and total load
capacity. In addition, make sure that the tires are inflated to the recommended tire infla-
tion pressure level.
The ABS, TRC and VSC systems will not function correctly if different tires are installed
on the vehicle.
Contact any authorized Lexus retailer or Lexus authorized repairer, or any reliable
repairer for further information when replacing tires or wheels.
■Handling of tires and the suspension
Using tires with any kind of problem or modi fying the suspension will affect the driving
assist systems, and may cause a system to malfunction.

383
4
4-6. Driving tips
Driving
GS350_200t_GS F_OM_OM30F83E_(EE)
Winter driving tips
●Use fluids that are appropriate to the prevailing outside temperatures.

3844-6. Driving tips
GS350_200t_GS F_OM_OM30F83E_(EE)
Perform the following according to the driving conditions: ●Do not try to forcibly open a window or move a wiper that is fr ozen. Pour
warm water over the frozen area to melt the ice. Wipe away the water imme-
diately to prevent it from freezing.
● To ensure proper operation of the climate control system fan, remove any
snow that has accumulated on the air inlet vents in front of the windsh ield.
● Check for and remove any excess ice or snow that may have accumulated on
the exterior lights, vehicle’s roof, chassis, around the tires or on the brakes.
● Remove any snow or mud from the bottom of your shoes before getting in the
vehicle.
Accelerate the vehicle slowly, keep a safe distance between you and the vehicle
ahead, and drive at a reduced speed suitable to road conditions. ● Park the vehicle and move the shift lever to P without setting the parking
brake. The parking brake may freeze up, preventing it from being released. If
the vehicle is parked without setting the parking brake, make sure to block the
wheels.
Failure to do so may be dangerous because it may cause the vehicle to move
unexpectedly, possibly leading to an accident.
● If the vehicle is parked without setting the parking brake, confirm that the shift
lever cannot be moved out of P *.
* : The shift lever will be locked if it is attemp ted to be shifted from P to any other position
without depressing the brake pedal. If the shift lever can be shifted from P, there may
be a problem with the shift lock system. Have the vehicle inspected by any authorized
Lexus retailer or Lexus authorized repair er, or any reliable repairer immediately.
Before driving the vehicle
When driving the vehicle
When parking the vehicle

385
4-6. Driving tips
4
Driving
GS350_200t_GS F_OM_OM30F83E_(EE)
Vehicles with front and rear tires of the same size
Use the correct tire chain size when mounting the tire chains.
Chain size is regulated for each tire size.
Side chain
(3 mm [0.12 in.] in diameter)
Cross chain
(4 mm [0.16 in.] in diameter)
Vehicles with front and rear tires of differing sizes
Tire chains cannot be mounted. Snow tires should be used instead.
Tire chains cannot be mounted. Snow tires should be used instead.
Regulations regarding the use of tire chai ns vary depending on location and type
of road. Always check local regulations before installing chains.
Selecting tire chai ns (GS350/GS200t)
1
2
Selecting tire chains (GS F)
Regulations on the use of tire chains

3864-6. Driving tips
GS350_200t_GS F_OM_OM30F83E_(EE)
If heavy snow or icy condition is expected, shift the rest position man ually.
Grip the hook section of the wiper arm firmly when shifting the wiper position.
■To rest position
Raise the wiper in line with the wind-
shield. You can stand the wipers up for the rest position.
★ : More than 10 cm (3.9 in.)
■To retract position
Lower the wipers by pressing on the
upper part of the hook section.
■Tire chain installation
Observe the following precautions wh en installing and removing chains:
●Install and remove tire chains in a safe location.
●Install tire chains on the rear tires. Do not install tire chains on the front tires.
●Install tire chains on rear tires as tightly as possible. Re tighten chains after driving 0.5
 1.0 km (1/4  1/2 mile).
●Install tire chains following the instru ctions provided with the tire chains.
Shifting the windshield wiper position

387
4-6. Driving tips
4
Driving
GS350_200t_GS F_OM_OM30F83E_(EE)
WARNING
■Driving with snow tires
Observe the following precautions to reduce the risk of accidents.
Failure to do so may result in a loss of vehicle control and cause death or serious injury.
●Use tires of the specified size.
●Maintain the recommended level of air pressure.
●Do not drive at speeds in excess of the speed limit or the speed limit specified for the
snow tires being used.
●Use snow tires on all, not just some wheels.
■Driving with tire chains (GS350/GS200t with front and rear tires of the same size)
Observe the following precautions to reduce the risk of accidents.
Failure to do so may result in the vehicle being unable to be driven safely, and may
cause death or serious injury.
●Do not drive in excess of the speed limit spec ified for the tire chains being used, or 50
km/h (30 mph), whichever is lower.
●Avoid driving on bumpy road surfaces or over potholes.
●Avoid sudden acceleration, abrupt steerin g, sudden braking and shifting operations
that cause sudden engine braking.
●Slow down sufficiently before entering a curve to ensure that vehicle control is main-
tained.
●Do not use LKA (Lane-Keeping Assist) system. (if equipped)
●Do not use LDA (Lane Departure Alert with steering control) system. (if equipped)
NOTICE
■Repairing or replacing snow tires
Request repairs or replacement of snow ti res from Lexus dealers or legitimate tire
retailers.
This is because the removal and attachment of snow tires affects the operation of the
tire pressure warning va lves and transmitters.
■Fitting tire chains (GS350/GS200t with front and rear tires of the same size)
The tire pressure warning valves and transmitters may not function correctly when tire
chains are fitted.
■When standing the windshield wipers up
Raise the wipers in line with the windshield. ( P. 386)
Failure to do so may result in damage to the wipers and/or the hood.

3884-6. Driving tips
GS350_200t_GS F_OM_OM30F83E_(EE)

389
5Interior features
GS350_200t_GS F_OM_OM30F83E_(EE)
5-1. Remote Touch screenRemote Touch/12.3-inch display ......................................... 390
5-2. Using the air conditioning system and defogger
Front automatic air conditioning system .........396
Rear air conditioning system ........ 408
Heated steering wheel/ seat heaters/
seat ventilators ............................ 411
5-3. Using the interior lights Interior lights list........................... 416

3905-1. Remote Touch screen
GS350_200t_GS F_OM_OM30F83E_(EE)
Remote Touch/12.3-inch display

: If equipped
The Remote Touch can be used to operate the Remote Touch screens.
Owners of models equipped with a navi gation system should refer to the
“NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.
The illustration below is for left-hand drive vehicles.
The button positions may differ slight ly for right-hand drive vehicles.
Remote Touch operation