cruise control Lexus GS350 2013 Owner's Guide

GS350_U (OM30C34U)
2294-5. Using the driving support systems
4
Driving
Lane departure warning function
If the system judges that the vehicle may deviate from its lane, it alerts
the driver using beeping, screen displays and a sensory warning
* given
via the steering wheel.
*: A slight steering torque is applied for a short period of time in the direction of
the center of the lane.
Lane keeping assist function• This function will be active when the vehicle-to-vehicle distance con- trol mode of the cruise control ( →P. 213) is set with vehicle speed
above approximately 45 mph (72 km/h) and while the lane depar-
ture warning function is active.
• When the lane keeping assist function is active, a slight steering
torque will be applied, to help the driver maintain the vehicle inside
the lane.
The lane keeping assist function will be temporarily canceled if the steering
wheel is not operated, or if you continue driving with your hands lightly touch-
ing the steering wheel. ( →P. 2 3 3 )
Functions included in the LKA
1
2

GS350_U (OM30C34U)
2314-5. Using the driving support systems
4
Driving
■Lane departure warning function
●When the vehicle speed is approximately 30 mph (48 km/h) or
more
●When the lane width is more than approximately 9.1 ft. (2.8 m)
●When driving on a straight road or through a curve with a radius of
more than approximately 394 ft. (120 m)
■Lane keeping assist function
●When the vehicle speed is between approximately 45 and 112 mph
(72 and 180 km/h)
●When the vehicle-to-vehicle distance mode of the radar cruise
control is on, and the set vehicle speed is approximately 45 mph (72
km/h) or more (the function will not operate when the radar cruise
control is in set speed mode)
●When the lane width is between approximately 9.1 and 13.1 ft.
(2.8 and 4.0 m)
●When driving on a straight road or through a curve with a radius of
more than approximately 755 ft. (230 m)
Operating conditions for each function

232
GS350_U (OM30C34U)
4-5. Using the driving support systems
When the LKA system is on, the lane line display and steering wheel dis-
play are shown.Lane keeping assist function
operation indication
Steering wheel displayed:
Indicates that the function is currently
operating. (If the lane departure warn-
ing operates at this time, the steering
wheel flashes orange.)
Steering wheel not displayed:
Indicates that the function is not cur-
rently operating. (When the lane
keeping assist function is canceled,
the buzzer will beep twice.)
Dynamic radar cruise control dis-
play
Lane departure warning function
indication (when the inside of the
white line is white):
The function has recognized lane
markers. (If the lane departure warn-
ing operates at this time, the lines flash
orange.)
Lane departure warning function
indication (when the inside of the
white line is black):
A lane marker is not recognized by
the system, or the LKA system func-
tions are temporarily canceled.
Indication on the multi-information display
1
2
3
4

7007-2. Steps to take in an emergency
GS350_U (OM30C34U)
Indicates a malfunction in the intuitive parking assistThe malfunctioning assist-sensor is flashing.
Indicates a malfunction in the dynamic radar cruise
control system (if equipped) or the cruise control sys-
temPress the “ON-OFF” button once to deactivate the
system, and then press the button again to reacti-
vate the system.
Indicates a malfunction in the LKA (Lane-Keeping
Assist)
Indicates a malfunction in the automatic headlight lev-
eling system
Warning messageDetails
(If equipped)
(If equipped)
(If equipped)

7077-2. Steps to take in an emergency
GS350_U (OM30C34U)
7
When trouble arises
Indicates that intuitive
parking assist sensor is
dirty or covered with ice
Clean the sensor.
Indicates that the radar
sensor is dirty or covered
with ice
Clean the sensor.
Indicates that the radar
cruise control system is
unable to judge vehicle-
to-vehicle distance
•Turn off the snowmode.
• If the windshield wip- ers are on, turn them
off or set them to a
mode other than
AUTO or high speed
wiper operation.
Indicates that your vehi-
cle is nearing the vehicle
ahead (in vehicle-to-vehi-
cle distance mode)
At the same time,
will appear on the
head-up display (the
image flashes).
Slow the vehicle by
applying the brakes.
Warning messageDetailsCorrection procedure
(If equipped)
(If equipped)
(If equipped)
(If equipped)

7117-2. Steps to take in an emergency
GS350_U (OM30C34U)
7
When trouble arises
■Warning message in radar cruise mode (if equipped)
In the following cases, the warning message may not be displayed even if vehicle-to-
vehicle distance decreases:
●When your vehicle and the vehicle ahead are traveling at the same speed or the
vehicle ahead is traveling more quickly than your vehicle
●When the vehicle ahead is traveling at a very low speed
●Immediately after cruise control speed is set
●At the instant the accelerator pedal is depressed
■The LKA (Lane-Keeping Assist) lane departure warning function
In the following cases, the warning message will not be displayed even if a lane line is
crossed.
●When the vehicle speed deviates from the operating range of the LKA system
functions
●When the lane lines cannot be recognized
●When the steering wheel is turned as far as necessary to cause the vehicle to
change lanes

7337-2. Steps to take in an emergency
GS350_U (OM30C34U)
7
When trouble arises
CAUTION
■When using the compact spare tire
●Remember that the compact spare tire provided is specifically designed for use
with your vehicle. Do not use your compact spare tire on another vehicle.
●Do not use more than one compact spare tires simultaneously.
●Replace the compact spare tire with a standard tire as soon as possible.
●Avoid sudden acceleration, abrupt steering, as well as sudden braking and shift-
ing operation to engine braking.
■When the compact spare tire is attached
The vehicle speed may not be correctly detected, and the following systems may
not operate correctly:
Also, not only can the following system not be utilized fully, but it may even nega-
tively affect the drive-train components:
•AWD system
• ABS & Brake assist
•VSC
•TRAC
•Cruise control
• Dynamic radar cruise control (if equipped)
• PCS (if equipped)
•EPS
• AFS (if equipped)
• LDH (if equipped) • DRS (if equipped)
• AVS (if equipped)
• LKA (Lane-Keeping Assist)
(if equipped)
• VGRS (if equipped)
• Rear view monitor system
• Intuitive parking assist (if equipped)
• Navigation system (if equipped)

810Alphabetical index
GS350_U (OM30C34U)
Alphabetical index
A/C ............................................................ 345Air conditioning filter ........................644
Front automatic air conditioning system ..................................................345
Rear air conditioning system....... 360
S-FLOW mode ................................. 355
ABS (Anti-lock Brake System)....... 268
Function ................................................. 268
Warning light ...................................... 687
Warning message .............................. 701
Adaptive Front-lighting system
(AFS) ........................................................192
Adaptive Variable
Suspension system (AVS) ............. 269
AFS (Adaptive Front-lighting
System) ....................................................192
Air conditioning filter .......................... 644
Air conditioning system ..................... 345 Air conditioning filter ........................644
Front automatic air conditioning system ..................................................345
Rear air conditioning system....... 360
S-FLOW mode ................................. 355 Airbags .........................................................36
Airbag operating conditions .......... 44
Airbag precautions for your child ....................................... 39
Airbag warning light ........................ 687
Correct driving posture .................... 28
Curtain shield airbag operating conditions ....................... 44
Curtain shield airbag precautions ............................................ 41
Front passenger occupant classification system..........................47
General airbag precautions ........... 39
Locations of airbags............................ 36
Modification and disposal of airbags............................................... 43
Side airbag operating conditions ............................................. 44
Side airbag precautions .................... 39
Side and curtain shield airbags operating conditions ....................... 44
Side and curtain shield
airbags precautions ......................... 39
SRS airbags ............................................. 36
Alarm ............................................................70 Alarm .......................................................... 70
Warning buzzer .................... 686, 697
Anchor brackets...................................... 60
Antennas (smart access system with push-button start) .....................103
Anti-lock Brake System (ABS) ...... 268 Function .................................................. 268
Warning light ....................................... 687
Warning message............................... 701
Approach warning (dynamic radar cruise control).......................... 219
Armrest ...................................................... 571
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812Alphabetical index
GS350_U (OM30C34U)
Care ............................................... 594, 598Aluminum wheels ............................. 595
Exterior................................................... 594
Interior .................................................... 598
Seat belts ............................................... 599
Cargo capacity....................................... 168
Cargo hooks ..........................................558
CD player ..................................................412
Chains .......................................................300
Child restraint system............................ 53 Booster seats, definition ....................53
Booster seats, installation.................. 63
Convertible seats, definition ............53
Convertible seats, installation .........60
Front passenger occupant
classification system ......................... 47
Infant seats, definition ..........................53
Infant seats, installation .......................60
Installing CRS
with LATCH anchors .................... 58
Installing CRS with seat belts ..........60
Installing CRS with top tether strap .........................64 Child safety .................................................52
Airbag precautions.............................. 39
Battery precautions .............. 626, 746
Child restraint system......................... 53
How your child should wear the seat belt ................................... 31, 32
Installing child restraints .................... 57
Moon roof precautions ..................... 151
Power window lock switch.............145
Power window precautions ........... 147
Rear door child-protectors ............. 118
Removed electronic key battery precautions .............. 647
Seat belt comfort guide ....................... 31
Seat belt extender precautions .......................................... 35
Seat belt precautions .......................... 56
Seat heater precautions .................570
Trunk precautions ............................... 124
Child-protectors ..................................... 118
Cleaning .......................................594, 598 Aluminum wheels ..............................595
Exterior ...................................................594
Interior .................................................... 598
Seat belts................................................599
Clock......................................................... 562
Coat hooks ..............................................576
Condenser...............................................622
Console box........................................... 554
Console box light ................................. 554
Cooling system Engine overheating ...........................747
Cruise control Cruise control .....................................209
Dynamic radar crui se control ....... 213
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813Alphabetical index
GS350_U (OM30C34U)
Cup holders ............................................555
Curtain shield airbags ........................... 37
Customizable features ........................ 777
Daytime running light system ............193
DefoggerFront windshield .................................352
Outside rear view mirrors ............ 365
Rear window ....................................... 365
Differential Front differential ................................. 758
Rear differential .................................. 758
Dimension ............................................... 752
Dinghy towing..........................................170
Display
Dynamic radar crui se control........213
LKA (Lane-Keeping Assist) ......... 232
Multi-information display .................. 82
Remote Touch screen .................... 308
Trip information .....................................83
Warning message .............................697
Do-it-yourself maintenance ............. 609
Door courtesy lights Location ................................................. 548
Wattage ....................................................761
Doors............................................................ 117 Automatic door locking
and unlocking system...................... 119
Door glasses ......................................... 145
Door lock .................................................. 117
Open door warning buzzer.......... 105
Open door warning light.............. 689
Outside rear view mirrors ...............142
Rear door child-protector................118 Driver’s seat position memory..........130
Driving ........................................................ 154
Break-in tips ...........................................156
Correct driving posture .................... 28
Driving mode select switch .......... 263
Procedures .............................................154
Winter drive tips ................................ 298
DRS (Dynamic Rear Steering) ........269
Function .................................................. 269
Warning message............................. 702
DVD player ...................................412, 420
Dynamic radar cruise control ........... 213 Function .................................................... 213
Warning message.................700, 707
Dynamic Rear Steering (DRS) ........269 Function .................................................. 269
Warning message............................. 702
Eco drive mode......................................263
Eco Driving Indicator ....................88, 92
EDR (Event data recorder)................... 10
Electric Power Steering (EPS) ........269 Function .................................................. 269
Warning light ....................................... 687
Warning message............................. 702
Electronic key ........................................... 98 Battery-saving function ....................107
If the electronic key does not operate properly ............................ 740
Replacing the battery ...................... 646
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