Lexus IS250 2014 Map database information and updates / LEXUS 2014 IS250,IS350 OWNERS MANUAL (OM53758U)

2504-5. Using the driving support systems
IS350/250_U (OM53758U)
■The Blind Spot Monitor function is operational when
●The BSM main switch is set to on
●Vehicle speed is greater than approximately 10 mph (16 km/h).
■The Blind Spot Monitor function will detect a vehicle when
●A vehicle in an adjacent lane overtakes your vehicle.
●Another vehicle enters the detection area when it changes lanes.
■Conditions under which the Blind Spot Monitor function will not detect a vehicle
The Blind Spot Monitor function is not designed to detect the following types of vehicles
and/or objects:
●Small motorcycles, bicycles, pedestrians etc.*
●Vehicles traveling in the opposite direction
●Guardrails, walls, signs, parked vehi cles and similar stationary objects*
●Following vehicles that are in the same lane*
●Vehicles driving 2 lanes across from your vehicle*
*
: Depending on conditions, detection of a vehicle and/or object may occur.
■Conditions under which the Bl ind Spot Monitor function may not function correctly
●The Blind Spot Monitor function may not dete ct vehicles correctly in the following con-
ditions:
• During bad weather such as heavy rain, fog, snow etc.
• When ice or mud etc. is attached to the rear bumper
• When driving on a road surface that is wet due to rain, standing water etc.
• When there is a significant difference in speed between your vehicle and the vehicle that enters the detection area
• When a vehicle is in the detection area from a stop and remains in the detection
area as your vehicle accelerates
• When driving up or down consecutive steep inclines, such as hills, a dip in the road
etc.
• When multiple vehicles approach with only a small gap between each vehicle
• When vehicle lanes are wide, and the vehicle in the next lane is too far away from
your vehicle
• When the vehicle that enters the detection area is traveling at about the same speed as your vehicle
• When there is a significant difference in height between your vehicle and the vehicle
that enters the detection area
• Directly after the BSM main switch is set to on
●Instances of the Blind Spot Monitor function unnecessarily detecting a vehicle and/or
object may increase under the following conditions:
• When there is only a short distance between your vehicle and a guardrail, wall etc.
• When there is only a short distance between your vehicle and a following vehicle
• When vehicle lanes are narrow and a vehicle driving 2 lanes across from your vehi-
cle enters the detection area
• When items such as a bicycle carrier ar e installed on the rear of the vehicle

2514-5. Using the driving support systems
4
Driving
IS350/250_U (OM53758U)
The Rear Cross 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 existence through flashing
the outside rear view mirror indicators and sounding a buzzer.
The Rear Cross Traffic Alert function
Approaching vehiclesDetection 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 Traffic Alert function is only an assist and is not a replacement for careful driv-
ing. Driver must be careful when backing up, even when using Rear Traffic Alert func-
tion. 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 may not function correctly. Therefore the driver’s
own visual confirmation of safety is necessary.
12

2524-5. Using the driving support systems
IS350/250_U (OM53758U)
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 Cross 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 5 mph (8 km/h).
●Approaching vehicle speed is between appr oximately 5 mph (8 km/h) and 18 mph (28
km/h).
The Rear Cross Traffic Alert function detection areas
Approaching vehicleSpeedApproximate
alert distance
Fast18 mph (28 km/h)65 ft. (20 m)
Slow5 mph (8 km/h)18 ft. (5.5 m)
1

2534-5. Using the driving support systems
4
Driving
IS350/250_U (OM53758U)
■Conditions under which the Rear Cross Traffic Alert function will not detect a vehicle
The Rear Cross Traffic Alert function is no t 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 vehi cles 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 Cross Traf fic Alert function may not function cor-
rectly
The Rear Cross Traffic Alert function may not detect vehicles correctly in the following
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, su ch as hills, a dip in the road etc.
●Directly after the BSM main switch is set to on
●Directly after the engine is started with the BSM main switch on
●Vehicles that the sensors cannot detect
because of obstacles

254
IS350/250_U (OM53758U)4-6. 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 the 18-inch tires.
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 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 windshield.
●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.
Winter driving tips
Carry out the necessary preparations and inspections before driving the vehi-
cle in winter. Always drive the vehicle in a manner appropriate to the prevail-
ing weather conditions.
Preparation for winter
Before driving the vehicle
When driving the vehicle

2554-6. Driving tips
4
Driving
IS350/250_U (OM53758U)
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.
Except vehicles with 18-inch tires
Use the correct tire chain size when mounting the tire chains.
Chain size is regulated for each tire size.
Side chain
(0.12 in. [3 mm] in diameter)
Cross chain
(0.16 in. [4 mm] in diameter)
Vehicles with 18-inch tires
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.
■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. Retighten chains after driving 1 /4
 1 /2 mile (0.5  1.0 km).
●Install tire chains following the instru ctions provided with the tire chains.
When parking the vehicle
Selecting tire chains
1
2
Regulations on the use of tire chains

2564-6. Driving tips
IS350/250_U (OM53758U)
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 ve hicle control and cause death or serious injury.
●Use tires of the specified size.
●Maintain the recommended level of air pressure.
●Do not drive in excess of 75 mph (120 km/h), regardless of the type of snow tires
being used.
●Use snow tires on all, not just some wheels.
■Driving with tire chains (except vehicles with 18-inch tires)
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 30
mph (50 km/h), whichever is lower.
●Avoid driving on bumpy road surfaces or over potholes.
●Avoid sudden acceleration, ab rupt steering, sudden braking and shifting operations
that cause sudden engine braking.
●Slow down sufficiently before entering a cu rve to ensure that vehicle control is main-
tained.
●Do not use LDA (Lane Departure Alert) system.
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 (except vehicles with 18-inch tires)
The tire pressure warning valves and transmitters may not function correctly when tire
chains are fitted.

2574-6. Driving tips
4
Driving
IS350/250_U (OM53758U)

258
IS350/250_U (OM53758U)
5-1. Basic OperationsLexus Display Audio System ......................................... 260
Steering wheel audio switches....................................... 265
USB/AUX ports ......................... 266
5-2. Setup Setup menu ...................................267
General settings ......................... 268
Voice settings ................................ 271
Display settings ............................272
5-3. Using the audio system Selecting the audio source .....273
Optimal use of the audio system ........................................... 274
Audio settings.............................. 275
Audio menu screen operation .................................... 278
5-4. Using the radio Radio operation ........................... 281
5-5. Playing an audio CD and MP3/WMA/AAC discs
CD player operation ................ 287

259
Lexus DisplayAudio system
5
IS350/250_U (OM53758U)
5-6. Using an external device
Listening to an iPod ................... 293
Listening USB memory device ........................................... 296
Using the AUX port................. 300
5-7. Connecting Bluetooth
®
Steps for using Bluetooth®
devices .......................................... 301
Registering a Bluetooth
®
device .......................................... 303
Selecting a Bluetooth
®
device .......................................... 304
Connecting a Bluetooth
®
audio player .............................. 305
Connecting a Bluetooth
®
phone .......................................... 306
Displaying a Bluetooth
®
device details ............................307
Detailed Bluetooth
®
settings........................................ 308
5-8. Bluetooth
® Audio
Listening to Bluetooth
®
Audio........................................... 309 5-9. Bluetooth
® Phone
Using a Bluetooth
®
Phone .............................................. 311
Making a call ................................. 313
Receiving a call ............................ 316
Speaking on th e phone..............317
Using a Bluetooth
®
phone message......................... 319
Using the steering wheel switches........................................ 321
Bluetooth
® phone
settings ........................................ 322
5-10. Phonebook Contact settings ......................... 324
Messaging setting...................... 327
5-11. Bluetooth
®
What to do if... (Troubleshooting).................... 328
Bluetooth
®......................... 332
5-12. Other function “Information” screen ................. 337
USB photo ....................................338
Weather information ................340
Voice command system ........... 341