trailer Lexus GS F 2017 User Guide

2384-1. Before driving
GS350_200t_GS F_OM_OM30F83E_(EE)
■Passing other vehicles
Consider the total combined length of your vehicle and trailer and ensure that
the vehicle-to-vehicle distance is sufficient before executing lane change s.
■Transmission information
To maintain engine braking efficiency, when using engine braking, when driv-
ing on a long steep downgrade, do not use the transmission in D . If in the M
mode, the transmission shift range position must be in 4 or lower. ( P. 249)
■If the engine overheats
Towing a loaded trailer up a long, steep incline in temperatures exceeding 30 C (85 F) may result in the engine overheating. If the engine coolant tem-
perature gauge indicates that the engine is overheating, turn the air condition-
ing off immediately, leave the road and stop the vehicle in a safe place. (  P. 602)
■When parking the vehicle
Always place wheel chocks under the wheels of both the vehicle and trailer.
Firmly set the parking brake and shift the shift lever to P.
WARNING
Follow all the instructions described in this se ction. Failure to do so could cause an acci-
dent resulting in death or serious injury.
■Trailer towing precautions
When towing, make sure that none of the weight limits are exceeded. ( P. 234)
■To avoid accident or injury
●Do not tow a trailer when the compact spare tire is installed on your vehicle.
●Do not tow a trailer when the tire installed is repaired with the emergency tire punc-
ture repair kit.
●Do not use cruise control (if equipped), dynamic radar cruise control (if equipped) or
dynamic radar cruise control with full-speed range (if equipped) when trailer towing.
■Vehicle speed in towing
Observe the legal maximum speeds for trailer towing.
■Before descending hills or long declines
Reduce speed and downshift. However, never downshift suddenly while descending
steep or long downhill grades.
■Operation of the brake pedal
Do not hold the brake pedal depressed often or for long periods of time.
Doing so may result in the brake ov erheating or reduce braking effects.

257
4-2. Driving procedures
4
Driving
GS350_200t_GS F_OM_OM30F83E_(EE)
■Parking brake operation
●When the engine switch is not in IGNI TION ON mode, the parking brake cannot be
released using the parking brake switch.
●When the engine switch is not in IGNITION ON mode, automatic mode (automatic
brake setting and releasing) is not available.
●If the parking brake is operated repeatedly over a short period of time, the system may
restrict operation to prevent overheating. If this happens, refrain from operating the
parking brake. Normal operation wi ll return after about 1 minute.
●Vehicles with towing package: In situations such as when parking while towing a trailer,
the maximum amount of braking force can be used by pressing the parking brake
switch with the parking brake already set.
●Vehicles without towing package: In situations such as when parking on a steep slope *,
the maximum amount of braking force can be used by pressing the parking brake
switch with the parking brake already set.
* : Use wheel chocks when parking on a steep slope.
■Parking brake operation sound
When the parking brake operates, a motor sound (whirring sound) may be heard. This
does not indicate a malfunction.
■Parking brake indicator light
●Depending on the engine switch mode, the parking brake indicator light will come on
and stay on as described below:
IGNITION ON mode: Comes on until the parking brake is released.
Not in IGNITION ON mode: Stays on for approximately 15 seconds.
●When the engine switch is turned off with the parking brake set, the parking brake indi-
cator light will stay on for about 15 seco nds. This does not indicate a malfunction.
■When there is a malfunction in the system
Warning lights and/or warning message will turn on or flash. ( P. 520, 524)
Depending on the condition, the park ing brake indicator light may flash.
■Parking the vehicle P. 222
■Parking brake engaged warning buzzer P. 528
■Usage in winter time P. 383

3104-5. Using the driving support systems
GS350_200t_GS F_OM_OM30F83E_(EE)
WARNING
■Situations unsuitable for LKA system
Do not use the LKA system in the following situations.
The system may not operate properly and le ad to an accident, resulting in death or
serious injury.
●A spare tire, tire chains, etc. are equipped.
●When the tires have been excessively worn, or when the tire inflation pressure is low.
●Tires which differ by structure, manufacturer, brand or tread pattern are used.
●Objects or patterns that could be mistaken for white (yellow) lines are present on the
side of the road (guardrails, cu rbs, reflective poles, etc.).
●Vehicle is driven on a snow-covered road.
●White (yellow) lines are difficult to see due to rain, snow, fog, dust, etc.
●Asphalt repair marks, white (yellow) line ma rks, etc. are present due to road repair.
●Vehicle is driven in a temporary lane or restricted lane due to construction work.
●Vehicle is driven on a road surface which is slippery due to rainy weather, fallen snow,
freezing, etc.
●Vehicle is driven in traffic lanes other than on highways and freeways.
●Vehicle is driven in a construction zone.
●Vehicle is towing a trailer or another vehicle. (vehicles with towing package)
■Preventing LKA system malfunctions and operations performed by mistake
●Do not modify the headlights or place stickers, etc. on the surface of the lights.
●Do not modify the suspension etc. If the suspension etc. needs to be replaced, con-
tact any authorized Lexus retailer or Le xus authorized repairer, or any reliable
repairer.
●Do not install or place anything on the hood or grille. Also, do not install a grille guard
(bull bars, kangaroo bar, etc.).
●If your windshield needs repairs, contac t any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer.

333
4-5. Using the driving support systems
4
Driving
GS350_200t_GS F_OM_OM30F83E_(EE)
WARNING
■Situations unsuitable for dynamic radar cruise control with full-speed range
Do not use dynamic radar cruise control with full-speed range in any of the following
situations.
Doing so may result in inappropriate speed control and could cause an accident result-
ing in death or serious injury.
●Roads where there are pedestrians, cyclists, etc.
●In heavy traffic
●On roads with sharp bends
●On winding roads
●On slippery roads, such as those covered with rain, ice or snow
●On steep downhills, or where there are sudden changes between sharp up and down
gradients
Vehicle speed may exceed the set sp eed when driving down a steep hill.
●At entrances to freeways and highways
●When weather conditions are bad enough that they may prevent the se nsors from
detecting correctly (fog, snow, sandstorm, heavy rain, etc.)
●When there is rain, snow, etc. on the fron t surface of the radar sensor or camera sen-
sor
●In traffic conditions that require frequent repeated acceleration and deceleration
●When your vehicle is towing a trailer (vehicles with towing package) or during emer-
gency towing
●When an approach warning buzzer is heard often

341
4-5. Using the driving support systems
4
Driving
GS350_200t_GS F_OM_OM30F83E_(EE)
■Automatic cancelation of constant speed control mode
Constant speed control mode is automatica lly canceled in the following situations:
●Actual vehicle speed is more than approximately 16 km/h (10 mph) below the set vehi-
cle speed.
●Actual vehicle speed falls below approximately 40 km/h (25 mph).
●VSC is activated.
●TRC is activated for a period of time.
●When the VSC or TRC system is turned off by pressing the VSC OFF switch.
●Pre-crash braking is activated.
If constant speed control mode is automatically canceled for any other reason, there may
be a malfunction in the system. Contact an y authorized Lexus retailer or Lexus autho-
rized repairer, or any reliable repairer.
■Warning messages and buzzers for dynamic radar cruise control with full-speed range
Warning messages and buzzers are used to indicate a system malfunction or to inform
the driver of the need for caution while driv ing. If a warning message is shown on the
multi-information display, read the message and follow the instructions. ( P. 524)
■When the sensor may not be correctly detecting the vehicle ahead
In the case of the following and depending on the conditions, operate the brake pedal
when deceleration of the system is insufficient or operate the accelerator pedal when
acceleration is required.
As the sensor may not be able to correctly detect these types of vehicles, the approach
warning ( P. 338) may not be activated.
●Vehicles that cut in suddenly
●Vehicles traveling at low speeds
●Vehicles that are not moving in the same lane
●Vehicles with small rear ends (trailers with no load on board, etc.)
●Motorcycles travelin g in the same lane
●When water or snow thrown up by the surrounding vehicles hinders the detecting of
the sensor

353
4-5. Using the driving support systems
4
Driving
GS350_200t_GS F_OM_OM30F83E_(EE)
■Automatic cancelation of constant speed control mode
Constant speed control mode is automatica lly canceled in the following situations:
●Actual vehicle speed is more than approximately 16 km/h (10 mph) below the set vehi-
cle speed.
●Actual vehicle speed falls below approximately 40 km/h (25 mph).
●VSC is activated.
●TRC is activated for a period of time.
●When the VSC or TRC system is turned off by pressing the VSC OFF switch.
●Pre-crash braking is activated.
If constant speed control mode is automatically canceled for any other reason, there may
be a malfunction in the system. Contact an y authorized Lexus retailer or Lexus autho-
rized repairer, or any reliable repairer.
■Warning messages and buzzers for dynamic radar cruise control
Warning messages and buzzers are used to indicate a system malfunction or to inform
the driver of the need for caution while driv ing. If a warning message is shown on the
multi-information display, read the message and follow the instructions. ( P. 524)
■When the sensor may not be correctly detecting the vehicle ahead
In the case of the following and depending on the conditions, operate the brake pedal
when deceleration of the system is insufficient or operate the accelerator pedal when
acceleration is required.
As the sensor may not be able to correctly detect these types of vehicles, the approach
warning ( P. 338) may not be activated.
●Vehicles that cut in suddenly
●Vehicles traveling at low speeds
●Vehicles that are not moving in the same lane
●Vehicles with small rear ends (trailers with no load on board, etc.)
●Motorcycles travelin g in the same lane
●When water or snow thrown up by the surrounding vehicles hinders the detecting of
the sensor

357
4-5. Using the driving support systems
4
Driving
GS350_200t_GS F_OM_OM30F83E_(EE)
■Cruise control can be set when
●The shift lever is in D.
●Range 4 or higher of D has been selected by using the paddle shift.
●Vehicle speed is above approximately 40 km/h (25 mph).
■Accelerating after setting the vehicle speed
●The vehicle can be accelerated normally. After acceleration, the set speed resumes.
●Even without canceling the cruise control, the set speed can be increased by first accel-
erating the vehicle to the desired speed and then pushing the lever down to set the new
speed.
■Automatic cruise control cancelation
Cruise control will stop maintaining the vehicl e speed in any of the following situations.
●Actual vehicle speed falls more than approximately 16 km/h (10 mph) below the preset
vehicle speed.
At this time, the memorized set speed is not retained.
●Actual vehicle speed is below approximately 40 km/h (25 mph).
●VSC is activated.
●TRC is activated for a period of time.
●When the VSC or TRC system is turned off by pressing the VSC OFF switch.
■If the warning message for the cruise control is shown on the multi-information display
Press the “ON/OFF” button once to deactivate the system, and then press the button
again to reactivate the system.
If the cruise control speed cannot be set or if the cruise control cancels immediately after
being activated, there may be a malfunction in the cruise control system. Have the vehi-
cle inspected by any authorized Lexus retaile r or Lexus authorized repairer, or any reli-
able repairer.
WARNING
■To avoid operating the cruise control by mistake
Switch the cruise control off using the “ON/OFF” button when not in use.
■Situations unsuitable for cruise control
Do not use cruise control in any of the following situations.
Doing so may result in loss of control and could cause an accident resulting in death or
serious injury.
●In heavy traffic
●On roads with sharp bends
●On winding roads
●On slippery roads, such as those covered with rain, ice or snow
●On steep hills
Vehicle speed may exceed the set sp eed when driving down a steep hill.
●When your vehicle is towing a trailer or during emergency towing

3724-5. Using the driving support systems
GS350_200t_GS F_OM_OM30F83E_(EE)
■Conditions under which the Rear Crossing Traffic Alert function will not detect a vehi-
cle
The Rear Crossing Traffic Alert function is not designed to detec t 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 cor-
rectly
The Rear Crossing Traffic Alert function may not detect vehicles correctly in the follow-
ing 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 function is turned on
●When your vehicle is towing a trailer (vehicles with towing package)
●When items such as a bicycle carrier ar e installed on the rear of the vehicle
●Directly after the engine is started with the BSM function is turned on
●When the sensors cannot detect vehicles
because of obstacles

631
8
8-1. Specifications
Vehicle specifications
GS350_200t_GS F_OM_OM30F83E_(EE)
GS F
* : If equipped
■When towing a trailer
Add 20.0 kPa (0.2 kgf/cm 2
or bar, 3 psi) to the recommend ed tire inflation pressure and
drive at speeds below 100 km/h (62 mph).
Tire size255/35ZR19 (92Y) (front), 275/35ZR19 (96Y) (rear),
225/40ZR19 (93Y) XL (spare) *
Tire inflation pressure
(Recommended
cold tire inflation
pressure)
Vehicle speedFront tire
kPa (kgf/cm2
or
bar, psi)Rear tire
kPa (kgf/cm 2
or
bar, psi)
More than 220 km/h
(137 mph)300 (3.0, 44)300 (3.0, 44)
220 km/h (137 mph)
or less250 (2.5, 36)250 (2.5, 36)
Tire inflation pressure
(spare)
(Recommended
cold tire inflation
pressure)
290 kPa (2.9 kgf/cm 2
or bar, 42 psi)
Wheel size19  9J (255/35ZR19), 19  10J (275/35ZR19),
19  8 1/2J (225/40ZR19)
Wheel nut torque103 N

673
Alphabetical index
GS350_200t_GS F_OM_OM30F83E_(EE)
Tires ..............................................................471
Chains .................................................... 385
Checking ................................................. 471
Emergency tire puncture
repair kit .............................................. 573
If you have a flat tire ..............557, 573
Inflation pressure................................ 629
Replacing ...............................................557
Rotating tires ........................................ 472
Size............................................................ 629
Snow tires ..............................................387
Spare tire ................................................557
Tire inflation pressure display function ................................................ 473
Tire pressure warning system ..... 473
Warning light .........................................521
Warning message............................. 524
Tools ............................................... 558, 575
Top strap ...................................................... 81
Torque Vectoring Differential
(TVD)...................................................... 373
Towing ........................................................ 510
Emergency towing............................. 510
Towing capacity ...................................612
Towing eyelet ....................................... 513
Trailer towing ........................... 232, 233
Traction Control (TRC) ..................... 375
Trailer towing ............................. 232, 233 Transmission........................................... 246
Automatic transmission.................. 246
Driving mode select switch.......... 358
If the shift lever cannot be
shifted from P................................... 253
M mode.................................................. 249
Paddle shift switches........................ 248
TRC (Traction Control)
Function.................................................. 375
TRC OFF switch ................................ 377
Trip meters .......................................108, 113
Trunk............................................................166 Jam protection function ..................... 171
Luggage security system ................168
Open trunk warning message ............................................. 524
Power trunk lid ..................................... 166
Smart entry & start system ............. 166
Trunk closer switch ............................ 167
Trunk easy closer ................................168
Trunk features ......................................424
Trunk grip................................................ 167
Trunk light ...............................................168
Trunk opener main switch ..............168
Trunk opener switch.......................... 166
Trunk storage extension ................ 433
Wireless remote control ................. 154
Trunk light ................................................. 168
Trunk light ...............................................168
Wattage ................................................... 631
TVD (Torque Vectoring Differential).......................................... 373
*: Refer to the “NAVIGATION AND MULTIMEDIA
SYSTEM OWNER’S MANUAL”.