Cruise control Lexus GS450h 2014 Owner's Guide

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GS450h_OM_OM30D52U_(U)
4-5. Using the driving support systems
CAUTION
■Handling the radar sensor
Observe the following to ensure the cruise control system can function effectively.
Otherwise, the system may not function correctly and could result in an accident.
●Keep the sensor and grille cover clean at all times.
Clean the sensor and grille cover with a soft cloth so you do not mark or damage
them.
●Do not subject the sensor or surrounding area to a strong impact.
If the sensor moves even slightly off position, the system may malfunction. If the
sensor or surrounding area is subject to a strong impact, always have the area
inspected and adjusted by your Lexus dealer.
●Do not disassemble the sensor.
●Do not attach accessories or stickers to the sensor, grille cover or surrounding
area.
●Do not modify or paint the sensor and grille cover.
●Do not replace the sensor or grill cover with non-genuine parts.
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4-5. Using the driving support systems
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. 240) 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 76 )
Functions included in the LKA
1
2
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4-5. Using the driving support systems
■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 9.8 ft. (3.0 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 9.8 and 13.1 ft.
(3.0 and 4.0 m)
●When driving on a straight road or through a curve with a radius of
more than approximately 656 ft. (200 m)
Operating conditions for each function
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GS450h_OM_OM30D52U_(U)
2754-5. Using the driving support systems
4
Driving
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
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7497-2. Steps to take in an emergency
GS450h_OM_OM30D52U_(U)
7
When trouble arises
A buzzer sounds and a warning message is shown on the multi-informa-
tion display. Failure to investigate the cause of the following warnings may
lead to the system operating abnormally and possibly cause an accident.
Have the vehicle inspected by your Lexus dealer.
Have the vehicle inspected immediately.
Warning messageDetails
Indicates a malfunction in the pre-collision system
Indicates a malfunction in the intuitive parking assist All assist-sensors flash.
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.
(Flashes)
(If equipped)
(If equipped)
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7507-2. Steps to take in an emergency
GS450h_OM_OM30D52U_(U)
Indicates a malfunction in the dynamic radar cruise
control with full-speed rangeDepress the brake pedal.
Indicates a malfunction in the LKA (Lane-Keeping
Assist)
Indicates a malfunction in the LED headlight system
Indicates a malfunction in the automatic headlight lev-
eling system
Warning messageDetails
(If equipped)
(If equipped)
(Flashes)
(If equipped)
(If equipped)
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7607-2. Steps to take in an emergency
GS450h_OM_OM30D52U_(U)
Warning messageDetailsCorrection procedure
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.
(If equipped)
(If equipped)
(If equipped)
(If equipped)
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7647-2. Steps to take in an emergency
GS450h_OM_OM30D52U_(U)
■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
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7867-2. Steps to take in an emergency
GS450h_OM_OM30D52U_(U)
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 tire simultaneously.
●Replace the compact spare tire with a standard tire as soon as possible.
●Avoid sudden acceleration, abrupt steering, sudden braking and shifting opera-
tions that cause sudden 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:
• ABS & Brake assist
•VSC
•TRAC
•Cruise control
• Dynamic radar cruise control (if equipped)
• PCS (if equipped)
•EPS • AFS (if equipped)
•AVS
• LKA (Lane-Keeping Assist)
(if equipped)
• Rear view monitor system
• Intuitive parking assist (if equipped)
• Navigation system (if equipped)
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869Alphabetical index
GS450h_OM_OM30D52U_(U)
Approach warningDynamic radar cruise control......246
Dynamic radar cruise control with full-speed range .................... 262
Armrest .................................................... 620
Ashtrays....................................................... 611
Assist grips .............................................. 625
Audio input................................................521
Audio system............................................. 411 Audio input............................................. 521
AUX port/USB port...........................521, 501, 511
Bluetooth
® audio.............................. 489
CD/DVD player ................................ 457
CD/DVD player information ...... 477
DVD video ........................................... 465
iPod .......................................................... 509
MP3/WMA disc .............................. 459
Optimal use ........................................... 519
Portable music player ....................... 521
Radio ........................................................434
Rear seat audio controls ................523
Steering wheel audio switch ........ 527
USB memory ...................................... 499
Automatic headlight leveling system .................................................... 220
Automatic light control system......... 217
AUX port...................................................521
Auxiliary boxes ...................................... 606
AVS (Adaptive Variable Suspension system)..........................309 Back-up lights
Replacing light bulbs ........................722
Wattage ...................................................817
Battery (12-volt battery) .....................673 If the 12-volt battery is
discharged......................................... 796
Preparing and checking before
winter.................................................... 342
Warning light ....................................... 738
Battery (traction battery) ...................... 76
Blind Spot Monitor (BSM) ................324
Bluetooth®
Audio system .......................................489
Hands-free system (for cellular phone) .......................530
Brake Brake Hold ............................................. 214
Fluid ............................................................ 671
Parking brake ..........................................211
Regenerative braking ..........................74
Warning light ........................... 737, 740
Warning message..............................747
Brake assist ............................................. 308
Brake Hold................................................ 214
Break-in tips ............................................. 177
Brightness control Instrument panel light control ........ 93
BSM (Blind Spot Monitor) ................324 Blind Spot Monitor function......... 328
Rear Cross Traffic Alert function.................................................. 331
B
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