Lexus GS250 2014 Owner's Manual

3514-5. Using the driving support systems
4
Driving
GS350_250_OM_OM30E16E_(EE)
The Rear Crossing Traffic Alert functions when your vehicle is in reverse. It
can detect other vehicles approaching from the right or left rear of the
vehicle. It uses radar sensors to alert the driver of the other vehicle’s exist-
ence through flashing the outside rear view mirror indicators and sound-
ing a buzzer.
The Rear Crossing Traffic Al ert function (if equipped)
Approaching vehicles Detection areas
CAUTION
■Cautions regarding the use of the system
The driver is solely responsible for safe driving. Always drive safely, taking care to
observe your surroundings.
The Rear Crossing Traffic Alert function is only an assist and is not a replacement
for careful driving. The driver must be careful when backing up, even when using
the Rear Crossing Traffic Alert function. The driver’s own visual confirmation of
behind you and your vehicle is necessary and be sure there are no pedestrians,
other vehicles etc. before backing up. Failure to do so could cause death or serious
injury.
According to conditions, the system ma y not function correctly. Therefore the
driver’s own visual confirmation of safety is necessary.
12
GS350_250_OM_OM30E16E_(EE).book Page 351 Tuesday, July 8, 201 4 7:11 PM

3524-5. Using the driving support systems
GS350_250_OM_OM30E16E_(EE)
The areas that vehicles can be detected in are outlined below.
To give the driver a more consistent time to react, the buzzer can alert for
faster vehicles from farther away.
Example:
■The Rear Crossing Traffic Alert function is operational when
●The BSM main switch is set to on.
●The shift lever is in R.
●Vehicle speed is less than approximately 8 km/h (5 mph).
●Approaching vehicle speed is between approximately 8 km/h (5 mph) and 28 km/h
(18 mph).
The Rear Crossing Traffic Alert function detection areas
Approaching vehicleSpeedApproximate
alert distance
Fa s t28 km/h (18 mph)20 m (65 ft.)
Slow8 km/h (5 mph)5.5 m (18 ft.)
1
GS350_250_OM_OM30E16E_(EE).book Page 352 Tuesday, July 8, 2014 7:11 PM

3534-5. Using the driving support systems
4
Driving
GS350_250_OM_OM30E16E_(EE)
■Conditions under which the Rear Crossing Traffic Alert function will not detect a
vehicle
The Rear Crossing Traffic Alert function is not designed to detect the following types
of vehicles and/or objects.
●Small motorcycles, bicycles, pedestrians etc.*
●Vehicles approaching from directly behind
●Guardrails, walls, signs, parked vehicles and similar stationary objects*
●Vehicles moving away from your vehicle
●Vehicles approaching from the parking spaces next to your vehicle*
●Vehicles backing up in the parking space next to your vehicle*
*
: Depending on conditions, detection of a vehicle and/or object may occur.
■Conditions under which the Rear Crossing Traffic Alert function may not function
correctly
The Rear Crossing Traffic Alert function may not detect vehicles correctly in the fol-
lowing conditions:
●During bad weather such as heavy rain, fog, snow etc.
●When ice or mud etc. is attached to the rear bumper
●When multiple vehicles approach continuously
●Shallow angle parking
●When a vehicle is approaching at high speed
●When parking on a steep incline, such as hills, a dip in the road etc.
●Directly after the BSM main switch is set to on
●When your vehicle is towing a trailer
●When items such as a bicycle carrier are installed on the rear of the vehicle
●Directly after the engine is started with the BSM main switch on
●When the sensors cannot detect vehicles
because of obstacles
GS350_250_OM_OM30E16E_(EE).book Page 353 Tuesday, July 8, 201 4 7:11 PM

3544-6. Driving tips
GS350_250_OM_OM30E16E_(EE)
Winter driving tips
●Use fluids that are appropriate to the prevailing outside temperatures.
• Engine oil
• Engine coolant
• Washer fluid
●Have a service technician inspect the condition of the battery.
●Have the vehicle fitted with four snow tires or purchase a set of tire
chains for the rear tires.
*
Ensure that all tires are the specified size and brand, and that chains match the
size of the tires.
*: Tire chains cannot be mounted on vehicles with front and rear tires of differing
sizes.
Carry out the necessary preparations and inspections before driving
the vehicle in winter. Always drive the vehicle in a manner appropriate
to the prevailing weather conditions.
Preparation for winter
GS350_250_OM_OM30E16E_(EE).book Page 354 Tuesday, July 8, 201 4 7:11 PM

3554-6. Driving tips
4
Driving
GS350_250_OM_OM30E16E_(EE)
Perform the following according to the driving conditions:
●Do not try to forcibly open a window or move a wiper that is frozen.
Pour warm water over the frozen area to melt the ice. Wipe away the
water immediately 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 wind-
shield.
●Check for and remove any excess ice or snow that may have accumu-
lated 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 necessary, block the wheels to prevent inadvertent sliding or
creeping.
Before driving the vehicle
When driving the vehicle
When parking the vehicle
GS350_250_OM_OM30E16E_(EE).book Page 355 Tuesday, July 8, 201 4 7:11 PM

3564-6. Driving tips
GS350_250_OM_OM30E16E_(EE)
XVehicles 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)
XVehicles with front and rear tires of differing sizes
Tire chains cannot be mounted.
Snow tires should be used instead.
Regulations regarding the use of tire chains vary depending on location
and type of road. Always check local regulations before installing chains.
Selecting tire chains
1
2
Regulations on the use of tire chains
GS350_250_OM_OM30E16E_(EE).book Page 356 Tuesday, July 8, 201 4 7:11 PM

3574-6. Driving tips
4
Driving
GS350_250_OM_OM30E16E_(EE)
If heavy snow or icy condition is expected, shift the rest position manually.
Grip the hook section of the wiper arm firmly when shifting the wiper
position.
■To rest position
Raise the wiper in line with the
windshield.
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 sec-
tion.
■Tire chain installation
Observe the following precautions when 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. Retighten chains after driving
0.5  1.0 km (1 /4  1 /2 mile).
●Install tire chains following the instructions provided with the tire chains.
Shifting the windshield wiper position
GS350_250_OM_OM30E16E_(EE).book Page 357 Tuesday, July 8, 201 4 7:11 PM

3584-6. Driving tips
GS350_250_OM_OM30E16E_(EE)
CAUTION
■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.
●Do not use LKA (Lane-Keeping Assist) system.
■Driving with tire chains (vehicles 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 specified 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 steering, sudden braking and shifting opera-
tions that causes sudden engine braking.
●Slow down sufficiently before entering a curve to ensure that vehicle control is
maintained.
●Do not use LKA (Lane-Keeping Assist) system.
GS350_250_OM_OM30E16E_(EE).book Page 358 Tuesday, July 8, 2014 7:11 PM

3594-6. Driving tips
4
Driving
GS350_250_OM_OM30E16E_(EE)
NOTICE
■Repairing or replacing snow tires
Request repairs or replacement of snow tires 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 valves and transmitters.
■Fitting tire chains (vehicles 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. 3 5 7 )
Failure to do so may result in damage to the wipers and/or the hood.
GS350_250_OM_OM30E16E_(EE).book Page 359 Tuesday, July 8, 201 4 7:11 PM

3604-6. Driving tips
GS350_250_OM_OM30E16E_(EE)
GS350_250_OM_OM30E16E_(EE).book Page 360 Tuesday, July 8, 2014 7:11 PM