Lexus GS300 2018 Owner's Manuals

GS350_300_GS F_OM_OM30G34U_(U)
1793-5. Opening, closing the windows and moon roof
3
Operation of each component
■Jam protection function
If an object is detected between the moon roof and the frame while the moon roof is clos-
ing or tilting down, travel is stopped and the moon roof opens slightly.
■Sunshade
The sunshade can be opened and closed manually. However, the sunshade will open
automatically when the moon roof is opened.
■Door lock linked moon roof operation
●The moon roof can be opened and closed using the mechanical key.* (→ P. 501)
●The moon roof can be opened us ing the wireless remote control.* (→ P. 137)
*: These settings must be cust omized at your Lexus dealer.
■When the moon roof does not close normally
Perform the following procedure:
●If the moon roof closes but then re-opens slightly
Stop the vehicle.
Press and hold the “CLOSE” switch.
*1
The moon roof will close, reopen an d pause for approximately 10 seconds.*2 Then it
will close again, tilt up and pause for approx imately 1 second. Finally, it will tilt down,
open and close.
Check to make sure that the moon roof is completely closed and then release the
switch.
●If the moon roof tilts down but then tilts back up
Stop the vehicle.
Press and hold the “UP” switch
*1 until the moon roof moves into the tilt up position
and stops.
Release the “UP” switch once and then press and hold the “UP” switch again.
*1
The moon roof will pause fo r approximately 10 seconds in the tilt up position.*2
Then it will adjust slightly and pause for approximately 1 second. Finally, it will tilt
down, open and close.
Check to make sure that the moon roof is completely closed and then release the
switch.
*1: If the switch is released at the incorrect time, the pr ocedure will have to be per-
formed again from the beginning.
*2: If the switch is released after the above mentioned 10 second pause, automatic operation will be disabled. In that case, press and hold the “CLOSE” or “UP” switch,
and the moon roof will tilt up and pause for approximately 1 second. Then it will tilt
down, open and close. Check to make sure that the moon roof is completely closed
and then release the switch.
If the moon roof does not fully close even after performing the above procedure cor-
rectly, have the vehicle inspected by your Lexus dealer.
1
2
3
1
2
3
4

180
GS350_300_GS F_OM_OM30G34U_(U)3-5. Opening, closing the windows and moon roof
■Moon roof open warning buzzer
The buzzer sounds and a message is shown on
the multi-information display in the instru-
ment cluster when the engine switch is turned off and the driver’s door is opened with the
moon roof open.
■Customization
Settings (e.g. linked door lock operation) can be changed.
(Customizable features: →P. 545)
WARNING
Observe the following precautions.
Failure to do so may cause death or serious injury.
■Opening the moon roof
●Do not allow any passengers to put their hands or heads outside the vehicle while it is
moving.
●Do not sit on top of the moon roof.
■Closing the moon roof
●The driver is responsible for moon roof opening and closing operations.
In order to prevent accidental operation, especially by a child, do not let a child oper-
ate the moon roof. It is possible for child ren and other passengers to have body parts
caught in the moon roof.
●Check to make sure that all passengers do not have any part of their body in a posi-
tion where it could be caught when the moon roof is being operated.
●When using the mechanical key and operat ing the moon roof, operate the moon roof
after checking to make sure that there is no possibility of any passenger having any of
their body parts caught in the moon roof. Also, do not let a child operate moon roof
by the mechanical key. It is possible for children and other passengers to get caught in
the moon roof.
●When exiting the vehicle, turn the engine sw itch off, carry the key and exit the vehicle
along with the child. There may be accidental operation, due to mischief, etc., that
may possibly lead to an accident.
■Jam protection function
●Never use any part of your body to intentionally activate the jam protection function.
●The jam protection function may not work if something gets caught just before the
moon roof fully closes.

181
GS350_300_GS F_OM_OM30G34U_(U)
4Driving
4-1. Before drivingDriving the vehicle ...................... 182
Cargo and luggage ......................191
Vehicle load limits ....................... 194
Trailer towing ................................ 195
Dinghy towing .............................. 196
4-2. Driving procedures Engine (ignition) switch ............ 197
Automatic transmission...........202
Turn signal lever........................... 210
Parking brake .................................211
Brake Hold..................................... 213
ASC (Active Sound Control) (GS F) ........................................... 215
4-3. Operating the lights and wipers
Headlight switch .......................... 216
Automatic High Beam .............. 219
Windshield wipers and washer.................................223 4-4. Refueling
Opening the fuel tank cap ..... 228
4-5. Using the driving support systems
Lexus Safety System+ .............. 232
PCS (Pre-Collision System)........................................238
LKA (Lane-Keeping Assist) .......................................... 249
Dynamic radar cruise control with full-speed range .............258
Cruise control ............................. 270
Driving mode select switch ........................................... 273
BSM (Blind Spot Moni tor).............. 278
• The Blind Spot Monitor function ..................................... 281
• The Rear Cross Traffic
Alert function .........................283
TVD (Torque Vectoring Differential) (GS F) ................ 286
Driving assist systems ............. 288
4-6. Driving tips Winter driving tips ..................... 296

182
GS350_300_GS F_OM_OM30G34U_(U)4-1. Before driving
Driving the vehicle
→
P. 197
With the brake pedal depressed, shift the shift lever to D. ( →P. 202)
If the parking brake is in manual mode, release the parking brake. ( →P. 211)
Gradually release the brake pedal and gently depress the accelerator pedal
to accelerate the vehicle.
With the shift lever in D, depress the brake pedal.
If necessary, set the parking brake.
If the vehicle is to be stopped for an extended period of time, shift the shift lever to P or
N. ( →P. 202)
With the shift lever in D, depress the brake pedal.
Set the parking brake ( →P. 211), and shift the shift lever to P. ( →P. 202)
Press the engine switch to stop the engine.
Lock the door, making sure that you ha ve the electronic key on your person.
If parking on a hill, block the wheels as needed.
Make sure that the parking brake is set and shift the shift lever to D.
Gently depress the accelerator pedal.
Release the parking brake.
The following procedures should be observed to ensure safe driving:
Starting the engine
Driving
Stopping
Parking the vehicle
Starting off on a steep uphill
1
2
3
1
2
1
2
3
4
1
2
3

GS350_300_GS F_OM_OM30G34U_(U)
1834-1. Before driving
4
Driving
■When starting off on a uphill
The hill-start assist control is available. (→P. 288)
■Driving in the rain
●Drive carefully when it is raining, because visibility will be reduced, the windows may
become fogged-up, and the road will be slippery.
●Drive carefully when it starts to rain, beca use the road surface will be especially slip-
pery.
●Refrain from high speeds when driving on an expressway in the rain, because there may
be a layer of water between the tires and th e road surface, preventing the steering and
brakes from operating properly.
■Engine speed while driving
In the following conditions, th e engine speed may become high while driving. This is due
to automatic up-shifting control or down-shi fting implementation to meet driving condi-
tions. It does not indica te sudden acceleration.
●The vehicle is judged to be driving uphill or downhill
●When the accelerator pedal is released
●When the brake pedal is depressed while sport mode is selected ( →P. 273)
■Restraining engine output (Brake Override System)
●When the accelerator and brake pedals are depressed at the same time, the engine
output may be restrained.
●A warning message is displayed on the mult i-information display while the system is
operating. ( →P. 461)
■Restraining sudden start (Drive-Start Control)
●When the following unusual operation is performed, the engine output may be
restrained.
• When the shift lever is shifted from R to D, D to R, N to R, P to D, or P to R (D
includes M) with the accelerator pedal depressed, a warning message appears on
the multi-information display. ( →P. 446)
• When the accelerator pedal is depressed t oo much while the vehicle is in reverse.
●While Drive-Start Control is being activated, your vehicle may have trouble escaping
from the mud or fresh snow. In such case, deac tivate TRAC (→P. 290) to cancel Drive-
Start Control so that the vehicle may beco me able to escape from the mud or fresh
snow.
■Breaking in your new Lexus
To extend the life of the vehicle, observin g the following precautions is recommended:
●For the first 186 miles (300 km):
Avoid sudden stops.
●For the first 621 miles (1000 km):
• Do not drive at extremely high speeds.
• Avoid sudden acceleration.
• Do not drive continuously in low gears.
• Do not drive at a constant speed for extended periods.

184
GS350_300_GS F_OM_OM30G34U_(U)4-1. Before driving
■Drum-in-disc type parking brake system
Your vehicle has a drum-in-disc type parking brake system. This type of brake system
needs bedding-down of the brake shoes peri
odically or whenever the parking brake
shoes and/or drum are replaced. Have your Lexus dealer perform the bedding down
operation.
■Operating your vehicle in a foreign country
Comply with the relevant vehicle registration laws and confirm the availability of the cor-
rect fuel. ( →P. 521)
■Brake pads and discs
●F SPORT models of GS350/GS300, and GS F: The brake pads and discs are
designed for use under high load conditions . Therefore, brake noise may be generated
depending on the vehicle speed, braking force and vehicle environment (temperature,
humidity, etc.).
●GS F: In order to achieve steady braking performance even during high-load sporty
driving, brake pads that include a large amount of iron are used. As a result, rust may
form if the vehicle is parked for a long time with wet brake pads or disc rotors, causing
them to stick. When parts are stuck, abnormal noise or vibration may occur during
driving, so lightly depress the accelerator pedal and drive slowly. (Before parking the
vehicle after it is washed, drive slowly an d apply the brakes several times to dry the
parts.)
■Idling time before engine stop (GS300)
To prevent damage to the turbocharger, allow the engine to idle immediately after high-
load driving.
Driving conditionIdling time
Normal city driving or high-speed driving (at the high-
way speed limit or recommended speed)Not necessary
Steep hill driving or continuo us driving (race track driv-
ing etc.)Approximately 1 minute

GS350_300_GS F_OM_OM30G34U_(U)
1854-1. Before driving
4
Driving
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When starting the vehicle
Always keep your foot on the brake pedal while stopped with the engine running. This
prevents the vehicle from creeping.
■When driving the vehicle
●Do not drive if you are unfamiliar with the location of the brake and accelerator ped-
als to avoid depressing the wrong pedal.
• Accidentally depressing the accelerator pedal instead of the brake pedal will
result in sudden acceleration that may lead to an accident.
• When backing up, you may twist your body around, leading to a difficulty in oper-
ating the pedals. Make sure to operate the pedals properly.
• Make sure to keep a correct driving po sture even when moving the vehicle only
slightly. This allows you to depress th e brake and accelerator pedals properly.
• Depress the brake pedal using your right foot. Depressing the brake pedal using your left foot may delay re sponse in an emergency, resulting in an accident.
●Do not drive the vehicle over or stop the vehicle near flammable materials.
The exhaust system and exhaust gases can be extremely hot. These hot parts may
cause a fire if there is any flammable material nearby.
●During normal driving, do not turn off the engine. Turning the engine off while driving
will not cause loss of steering or braking control, but the power assist to these systems
will be lost. This will make it more difficult to steer and brake, so you should pull over
and stop the vehicle as soon as it is safe to do so.
However, in the event of an emergency, such as if it becomes impossible to stop the
vehicle in the normal way: →P. 425
●Use engine braking (downshift) to maintain a safe speed when driving down a steep
hill.
Using the brakes continuously may cause th e brakes to overheat and lose effective-
ness. ( →P. 202)
●Do not adjust the positions of the steering wheel, the seat, or the inside or outside rear
view mirrors while driving.
Doing so may result in a loss of vehicle control.
●Always check that all passengers’ arms, heads or other parts of their body are not
outside the vehicle.
●Do not drive in excess of the speed limit. Even if the legal speed limit permits it, do not
drive over 85 mph (140 km/h) unless your vehicle has high-speed capability tires.
Driving over 85 mph (140 km/h ) may result in tire failure, loss of control and possible
injury. Be sure to consult a tire dealer to determine whether the tires on your vehicle
are high-speed capability tires or no t before driving at such speeds.

186
GS350_300_GS F_OM_OM30G34U_(U)4-1. Before driving
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When driving on slippery road surfaces
●Sudden braking, acceleration and steering
may cause tire slippage and reduce your
ability to control the vehicle.
●Sudden acceleration, engine braking due to shifting, or changes in engine speed
could cause the vehicle to skid, resulting in an accident.
●After driving through a puddle , lightly depress the brake pedal to make sure that the
brakes are functioning properly. Wet brake pads may prevent the brakes from func-
tioning properly. If the brakes on only on e side are wet and not functioning properly,
steering control may be affected.
■When shifting the shift lever
●Do not let the vehicle roll backward while the shift lever is in a driving position, or roll
forward while the shift lever is in R.
Doing so may cause the engine to stall or lead to poor brake and steering perfor-
mance, resulting in an accide nt or damage to the vehicle.
●Do not shift the shift lever to P while the vehicle is moving.
Doing so can damage the transmission and may result in a loss of vehicle control.
●Do not shift the shift lever to R while the vehicle is moving forward.
Doing so can damage the transmission and may result in a loss of vehicle control.
●Do not shift the shift lever to a driving position while the vehicle is moving backward.
Doing so can damage the transmission and may result in a loss of vehicle control.
●Moving the shift lever to N while the vehicle is moving will disengage the engine from
the transmission. Engine braking is not available when N is selected.
●Be careful not to shift the shift lever with the accelerator pedal depressed. Shifting the
shift lever to a gear other than P or N may lead to unexpected rapid acceleration of
the vehicle that may cause an accident and result in death or serious injury.
■If you hear a squealing or scraping noise (brake pad wear limit indicators) (GS350/
GS300)
Have the brake pads checked and replaced by your Lexus dealer as soon as possible.
Rotor damage may result if the pads are not replaced when needed.
Front brakes of F SPORT models: Moderate levels of brake pad and disc wear allow
enhanced front braking power. As a result, the discs may wear more quickly than con-
ventional brake discs. Therefore, when replacing the brake pads, Lexus recommends
that you also have the thic kness of the discs measured.
It is dangerous to drive the vehicle when the wear limits of the brake pads and/or those
of the brake discs are exceeded.

GS350_300_GS F_OM_OM30G34U_(U)
1874-1. Before driving
4
Driving
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■If a brake pad wear warning message is displayed (GS F)
Have the brake pads checked and replaced by your Lexus dealer as soon as possible.
Rotor damage may result if the pads are not replaced when needed.
Moderate levels of the brake pad and disc wear allow enhanced braking power. As a
result, the discs may wear more quickly than conventional brake discs. Therefore, when
replacing the brake pads, Lexu s recommends that you also have the thickness of the
discs measured.
It is dangerous to drive the vehicle when the wear limits of the brake pads and/or those
of the brake discs are exceeded.
■When the vehicle is stopped
●Do not race the engine.
If the vehicle is any gear other than P or N, the vehicle may acce lerate suddenly and
unexpectedly, causing an accident.
●In order to prevent accidents due to the ve hicle rolling away, always keep depressing
the brake pedal while the engine is running, and apply the parking brake as neces-
sary.
●If the vehicle is stopped on an incline, in order to prevent accidents caused by the
vehicle rolling forward or backward, alwa ys depress the brake pedal and securely
apply the parking brake as needed.
●Avoid revving or racing the engine.
Running the engine at high speed while the vehicle is stopped may cause the exhaust
system to overheat, which could result in a fire if combustible material is nearby.

188
GS350_300_GS F_OM_OM30G34U_(U)4-1. Before driving
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When the vehicle is parked
●Do not leave glasses, cigarette lighters, sp
ray cans, or soft drink cans in the vehicle
when it is in the sun.
Doing so may result in the following:
• Gas may leak from a cigarette lighter or spray can, and may lead to a fire.
• The temperature inside the vehicle may cau se the plastic lenses and plastic mate-
rial of glasses to deform or crack.
• Soft drink cans may fracture, causing the contents to spray over the interior of the vehicle, and may also cause a short circui t in the vehicle’s electrical components.
●Do not leave cigarette lighters in the vehicle. If a cigarette lighter is in a place such as
the glove box or on the floor, it may be lit accidentally when luggage is loaded or the
seat is adjusted, causing a fire.
●Do not attach adhesive discs to the windsh ield or windows. Do not place containers
such as air fresheners on th e instrument panel or dashboard. Adhesive discs or con-
tainers may act as lenses, ca using a fire in the vehicle.
●Do not leave a door or window open if th e curved glass is coated with a metallized
film such as a silver-colored one. Reflecte d sunlight may cause the glass to act as a
lens, causing a fire.
●Always apply the parking brake, shift the shift lever to P, stop the engine and lock the
vehicle.
Do not leave the vehicle unattend ed while the engine is running.
If the vehicle is parked with the shift leve r in P but the parking brake is not set, the
vehicle may start to move, possibly leading to an accident.
●Do not touch the exhaust pipes while the engine is running or immediately after turn-
ing the engine off.
Doing so may cause burns.
■When taking a nap in the vehicle
Always turn the engine off. Otherwise, if you accidentally move the shift lever or
depress the accelerator pedal, this could cause an accident or fire due to engine over-
heating. Additionally, if the ve hicle is parked in a poorly ventilated area, exhaust gases
may collect and enter the vehicle, leading to death or a serious health hazard.