Brake Lexus GS300h 2015 User Guide

821-2. Hybrid system
GS450h_300h_OM_OM30F00E_(EE)
WA R N I N G
■Road accident cautions
Observe the following precautions to reduce the risk of death or serious injury:
●Pull your vehicle off the road, apply the parking brake, shift the shift lever to P, and
turn the hybrid system off.
●Do not touch the high voltage parts, cables and connectors.
●If electric wires are exposed inside or outside your vehicle, an electric shock may
occur. Never touch exposed electric wires.
●If a fluid leak occurs, do not touch the fluid as it may be strong alkaline electrolyte
from the hybrid battery (traction battery). If it comes into contact with your skin or
eyes, wash it off immediately with a large amount of water or, if possible, boric acid
solution. Seek immediate medical attention.
●If a fire occurs in the hybrid vehicle, leave the vehicle as soon as possible. Never use a
fire extinguisher that is not meant for electric fires. Using even a small amount of
water may be dangerous.
●If your vehicle needs to be towed, do so with rear wheels raised. If the wheels con-
nected to the electric motor (traction motor) are on the ground when towing, the
motor may continue to generate electricity. This may cause a fire. ( →P. 4 7 0 )
●Carefully inspect the ground under the vehicl e. If you find that liquid has leaked onto
the ground, the fuel system may have been damaged. Leave the vehicle as soon as
possible.

992. Instrument cluster
2
Instrument cluster
GS450h_300h_OM_OM30F00E_(EE)
Warning lights inform the driver of malfunctions in the indicated vehicle’s sys-
tems.
Wa r n i n g l i g h t s
*1
Brake system warning light
(→ P. 4 76 )
*2, 3
(If equipped)
“AFS OFF” indicator
(→ P. 4 7 8 )
*2, 4Charging system warning
light ( →P. 4 76 )*1, 3Brake hold operated
indicator ( →P. 4 7 8 )
*2Malfunction indicator
lamp ( →P. 4 76 )*3Parking brake indicator
(→ P. 4 7 8 )
*2SRS warning light
(→ P. 4 76 )*1Brake system warning light
(→ P. 4 7 8 )
*1ABS warning light
(→ P. 477)Low fuel level warning light
(→ P. 4 7 8 )
*2Electric power steering
system warning light
(→ P. 477)Seat belt reminder light
(→ P. 4 7 8 )
*2, 3
(If equipped)
PCS (Pre-Crash Safety
system) warning light
(→ P. 477)*2
Master warning light
(→ P. 4 7 8 )
*1
Slip indicator ( →P. 477)
*2
(If equipped)
Tire pressure warning light
(→ P. 4 7 9 )

1012. Instrument cluster
2
Instrument cluster
GS450h_300h_OM_OM30F00E_(EE)
The indicators inform the driver of the operating state of the vehicle’s various sys-
tems.
Indicators
Turn signal indicator
(→ P. 2 3 0 ) Rear fog light indicator
(
→ P. 2 4 9 )
Tail light indicator
( → P. 2 3 6 ) Cruise control indicator
(
→ P. 311, 323, 327)
Headlight high beam
indicator ( →P. 2 3 7 )
(If equipped)
Dynamic radar cruise
control indicator
(→ P. 303, 315)
(If equipped)
Automatic High Beam
indicator ( →P. 2 4 5 ) /
Adaptive High-beam
System indicator
( → P. 2 4 1 ) Cruise control “SET”
indicator
(
→ P. 303, 315, 327)
Front fog light indicator
( → P. 2 4 9 )
(If equipped)
LDA indicator ( →P. 2 9 3 ) /
LKA indicator ( →P. 2 8 5 )
*1
(If equipped)
Lexus parking assist-sensor
indicator*2
Brake hold operated
indicator ( →P. 2 3 4 )
*3
(If equipped)
“AFS OFF” indicator
(→ P. 2 3 8 ) *4Security indicator
(→ P. 8 4 , 9 0 )
*2, 5
Slip indicator ( →P. 3 4 6 )*6Low outside temperature
indicator ( →P. 1 0 4 )
*2VSC OFF indicator
(→ P. 3 4 7 )“READY” indicator
(→ P. 2 1 7 )
*3, 7
(If equipped)
PCS (Pre-Crash Safety
system) warning light
(→ P. 2 7 2 ) EV indicator ( →P. 76 )

1022. Instrument cluster
GS450h_300h_OM_OM30F00E_(EE)
●Drive mode indicators
XExcept F SPORT models
XF SPORT models
*8, 9
(If equipped)
BSM (Blind Spot Monitor)
outside rear view mirror
indicators (→P. 333) Parking brake indicator
(
→ P. 2 3 1 )
(If equipped)
“BSM” (Blind Spot
Monitor) indicator
(→ P. 333)*3, 4“PASSENGER AIR
BAG” indicator
(→ P. 5 3 )
*2
Brake hold standby
indicator ( →P. 2 3 4 )
EV drive mode indicator
(→ P. 222)
Eco drive mode indicator
(→ P. 3 3 0 )
(If equipped)
“SPORT” indicator
(→ P. 330)
(If equipped)
“SPORT S” indicator
(→ P. 3 3 0 )
(If equipped)
“SPORT S+” indicator
(→ P. 330)
(If equipped)
“Customize” indicator
(→ P. 3 3 0 ) Snow mode indicator
(
→ P. 2 2 5 )
Eco drive mode indicator
(→ P. 3 3 0 )
(If equipped)
“SPORT” indicator
(→ P. 330)
(If equipped)
“SPORT S” indicator
(→ P. 3 3 0 )
(If equipped)
“SPORT S+” indicator
(→ P. 330)
(If equipped)
“CUSTOMIZE” indicator
(→ P. 3 3 0 ) Snow mode indicator
(
→ P. 2 2 5 )

1142. Instrument cluster
GS450h_300h_OM_OM30F00E_(EE)
■Energy monitor
→P. 1 2 6
■G-forces
Displays lateral G-forces on the vehicle
Also displays, around the periphery of the G-force display, the left and right
steering amount, accelerator pedal input, and brake fluid pressure
Acceleration G-force on the
vehicle
Current G-force value (analyzed
value of front/rear and left/right
G-forces)
Accelerator pedal input
Brake fluid pressure
Record of the maximum G-forces
Steering amount
Actual vehicle conditions may differ from the displayed information depending on
road conditions, temperature, vehicle speed and other factors.
Use this information as reference.
●Resetting the record of maximum G-forces
Press and hold to reset the record.
●Peak hold function (F SPORT models)
If lateral G-forces of 0.5 G or greater are generated, the G-force value
display will turn amber and be held for 2 seconds.
■Tire inflation pressure (vehicles with the tire pressure warning system)
Displays inflation pressure of each tire.
The inflation pressure of the compact spare tire will not be displayed.
■LDA (Lane Departure Alert with steering control) vehicle sway warning (if
equipped)
→P. 2 9 0
■LKA (Lane-Keeping Assist) vehi cle sway warning (if equipped)
→ P. 2 8 1
1
2
3
4
5
6

1172. Instrument cluster
2
Instrument cluster
GS450h_300h_OM_OM30F00E_(EE)
■G-force display
●The G-force values may not be zero even when the vehicle is parked, such as when it is
parked on an incline.
●Depending on the vehicle usage conditions, the brake fluid pressure display may not
reach its maximum reading even though the brake pedal is fully depressed.
●If a 12-volt battery terminal is disconnected and reconnected, the steering amount dis-
play may be disabled temporarily. After driving the vehicle for a while, the display will
be enabled.
●Depending on the condition of the vehicle, the brake fluid pressure display may change
even when the brake pedal is not depressed.
■System check display
After turning the power switch to ON mode, opening image is displayed while system
operation is checked. When the system check is complete, the normal screen will return.
■Suspension of the settings display
In the following situations, the settings di splay using the meter control switches will be
suspended.
●When a warning message appears on the multi-information display
●When the vehicle begins to move
■Tire inflation pressure (if equipped)
●It may take a few minutes to display the tire inflation pressure after the power switch is
turned to ON mode. It may also take a few minutes to display the tire inflation pressure
after inflation pressure has been adjusted.
●“---” may be displayed if the tire information cannot be determined due to unfavorable
radio wave conditions.
●Tire inflation pressure changes with temperature. The displayed values may also be dif-
ferent from the values measured using a tire pressure gauge.
■When disconnecting and reconnecting 12-volt battery terminals
The drive information will be reset.
■Liquid crystal display
→P. 1 0 9

199
4Driving
GS450h_300h_OM_OM30F00E_(EE)
4-1. Before drivingDriving the vehicle .................... 200
Cargo and luggage .................. 208
Trailer towing (vehicles without towing package) .....209
Trailer towing (vehicles with towing package)....................... 210
4-2. Driving procedures Power (ignition) switch...............217
EV drive mode ............................ 222
Hybrid transmission .................. 224
Turn signal lever ..........................230
Parking brake................................ 231
Brake Hold....................................234
4-3. Operating the lights and wipers
Headlight switch ......................... 236
AHS (Adaptive High-beam System) ........................................ 240
Automatic High Beam ............. 245
Fog light switch............................ 249
Windshield w ipers and washer................................ 250 4-4. Refueling
Opening the fuel tank cap ..... 256
4-5. Using the driving support systems
Lexus Safety System+ .............. 260
PCS (Pre-Crash Safety system) ........................................ 269
LKA (Lane-Keeping Assist) ........................................... 281
LDA (Lane Departure Alert with steering control) ............ 290
RSA (Road Sign Assist)........... 298
Dynamic radar cruise control with full-speed range .............303
Dynamic radar cruise control .......................................... 315
Cruise control ............................. 327
Driving mode select switch ...330
BSM (Blind Spot Monitor) ..... 333 •The Blind Spot Monitor function .................................... 339
• The Rear Crossing Traffic
Alert function.......................... 341
Driving assist systems............... 344
4-6. Driving tips Hybrid vehicle driving tips .......351
Winter driving tips ..................... 354

2004-1. Before driving
GS450h_300h_OM_OM30F00E_(EE)
Driving the vehicle
→ P. 2 1 7
With the brake pedal depressed, shift the shift lever to D. ( →P. 2 2 4 )
If the parking brake is in manual mode, release the parking brake. ( →P. 2 3 1 )
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.
( → P. 2 2 4 )
With the shift lever in D, depress the brake pedal.
Shift the shift lever to P. ( →P. 2 2 4 )
If the parking brake is in manual mode, set the parking brake. (→P. 2 3 1 )
Press the power switch to stop the hybrid system.
Lock the door, making sure that you have the electronic key on your person.
If parking on a hill, bl ock 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 hybrid system
Driving
Stopping
Parking the vehicle
Starting off on a steep uphill
1
2
3
1
2
1
2
3
4
5
1
2
3

2014-1. Before driving
4
Driving
GS450h_300h_OM_OM30F00E_(EE)
■When starting off on a uphill
The hill-start assist control is available. (→P. 3 4 5 )
■For fuel-efficient driving
Keep in mind that hybrid vehicles are similar to conventional vehicles, and it is necessary
to refrain from activities such as sudden acceleration, etc. Refer to “Hybrid vehicle driv-
ing tips”. ( →P. 3 5 1 )
■Driving in the rain
●Drive carefully when it is raining, becaus e 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 the road surface, preventing the steering and
brakes from operating properly.
■Restraining hybrid system output (Brake Override System)
●When the accelerator and brake pedals are depressed at the same time, the hybrid sys-
tem output may be restrained.
●A warning message is displayed on the mult i-information display while the system is
operating. ( →P. 5 0 3 )
■Restraining sudden start (Drive-Start Control)
●When the following unusual operation is performed, the hybrid system 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 S) with the accelerator pedal depressed, a warning message appears on
the multi-information display. ( →P. 4 8 9 )
• When the accelerator pedal is depressed too 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, deactivate TRC ( →P. 346) to cancel Drive-
Start Control so that the vehicle may become able to escape from the mud or fresh
snow.
■Breaking in your new Lexus
To extend the life of the vehicle, observing the following precautions is recommended:
●For the first 300 km (186 miles):
Avoid sudden stops.
●For the first 800 km (500 miles):
Do not tow a trailer.
●For the first 1000 km (621 miles):
• 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.

2024-1. Before driving
GS450h_300h_OM_OM30F00E_(EE)
■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 periodically or whenever the parking brake
shoes and/or drum are replaced. Have any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional 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. 5 6 9 )