2015 Lexus GS450h brake

741-2. Hybrid system
GS450h_OM_OM30F70U_(U)
■Regenerative braking
In the following situations, kinetic energy is converted to electric energy and decel-
eration force can be obtained in conjunction with the recharging of the hybrid bat-
tery (traction battery).
●The accelerator pedal is released while driving with the shift position in D or S.
●The brake pedal is depressed while driving with the shift position in D or S.
■EV indicator
■Conditions in which the gasoline engine may not stop
The gasoline engine starts and stops automatically. However, it may not stop auto-
matically in the following conditions:
●During gasoline engine warm-up
●During hybrid battery (traction battery) charging
●When the temperature of the hybrid battery (traction battery) is high or low
●When the heater is switched on
■Charging the hybrid battery (traction battery)
●As the gasoline engine charges the hybrid battery (traction battery), the battery
does not need to be charged from an outside source. However, if the vehicle is left
parked for a long time the hybrid battery will slowly discharge. For this reason, be
sure to drive the vehicle at least once every few months for at least 30 minutes or
10 miles (16 km). If the hybrid battery becomes fully discharged and you are unable
to jump-start the vehicle with the 12-volt battery, contact your Lexus dealer.
●If the shift lever is in N, the hybrid battery (traction battery) will not be charged.
Always put the shift lever in P when the vehicle is stopped. When driving in heavy
traffic, operate the vehicle with the shift lever in D or S to avoid discharging the bat-
tery.
■Charging the 12-volt battery
→P. 5 6 3
The EV indicator comes on when the vehicle
is driven using only the electric motor (trac-
tion motor) or the gasoline engine is stopped.
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751-2. Hybrid system
GS450h_OM_OM30F70U_(U)
1
For safety and security
■After the 12-volt battery has discharged or has been changed or removed
The gasoline engine may not stop even if the vehicle is running on the hybrid battery
(traction battery). If this continues for a few days, contact your Lexus dealer.
■Sounds and vibrations specific to a hybrid vehicle
There may be no engine sounds or vibration even though the vehicle is able to move.
For safety, apply the parking brake and make sure to shift the shift position to P when
parked.
The following sounds or vibrations may occur when the hybrid system is operating
and are not a malfunction:
●Motor sounds may be heard from the engine compartment.
●Sounds may be heard from the hybrid battery (traction battery) behind the rear
seats when the hybrid system starts or stops.
●Sounds from the hybrid system may be heard when the trunk lid is open.
●Sounds may be heard from the hybrid transmission when the hybrid system starts
or stops.
●Engine sounds may be heard when accelerating sharply.
●Sounds may be heard due to regenerative braking when the brake pedal is
depressed.
●Vibration may be felt when the gasoline engine starts or stops.
●Cooling fan sounds may be heard from the air intake vents on the both sides of the
rear seatback.
■Vehicle proximity notification system
In the following cases, the vehicle proximity notification system may be difficult for
surrounding people to hear.
●In very noisy areas
●In the wind or the rain
Also, as the vehicle proximity notification system is installed on the front of the vehi-
cle, it may be more difficult to hear from the rear of the vehicle compared to the
front.
■Maintenance, repair, recycling, and disposal
Contact your Lexus dealer regarding maintenance, repair, recycling and disposal.
Do not dispose of the vehicle yourself.
■Customization
Settings (e.g. on/off operation of the EV indicator) can be changed.
(Customizable features: → P. 599)
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791-2. Hybrid system
GS450h_OM_OM30F70U_(U)
1
For safety and security
CAUTION
■High voltage precautions
The vehicle has high voltage DC and AC systems as well as a 12-volt system. DC
and AC high voltage is very dangerous and can cause severe burns and electric
shock that may result in death or serious injury.
●Never touch, disassemble, remove or replace the high voltage parts, cables or
their connectors.
●The hybrid system will become hot after starting as the system uses high voltage.
Be careful of both the high voltage and the high temperature, and always obey
the caution labels attached to the vehicle.
■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
connected to the electric motor (traction motor) are on the ground when towing,
the motor may continue to generate electricity. This may cause an electricity
leakage leading to a fire. (→P. 4 9 6 )
●Carefully inspect the ground under the vehicle. If you find that liquid has leaked
onto the ground, the fuel system may have been damaged. Leave the vehicle as
soon as possible.
●Never try to open the service plug access
hole located behind the rear seats. The ser-
vice plug is used only when the vehicle is
serviced and is subject to high voltage.
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GS450h_OM_OM30F70U_(U)
872. Instrument cluster
2
Instrument cluster
◆Outside rear view mirrors (vehicles with BSM)
Warning lights inform the driver of malfunctions in the indicated vehicle’s
systems.
Warning lights
*1
(U.S.A.)
Brake system warning light
( → P. 5 0 3 )*1
(U.S.A.)
ABS warning light
(→ P. 5 0 4 )
*1
(Canada)
Brake system warning light
(→ P. 5 0 3 )*1
(Canada)
ABS warning light
(→ P. 5 0 4 )
*1Charging system warning
light ( →P. 5 0 4 )*1Electric power steering
system warning light
(→ P. 5 0 4 )
*1
(U.S.A.)
Malfunction indicator
lamp ( →P. 5 0 4 )*1, 2
(if equipped)
“AFS OFF” indicator
(→ P. 505)
*1
(Canada)
Malfunction indicator
lamp ( →P. 5 0 4 )*1, 2Brake hold operated
indicator ( →P. 5 0 5 )
*1SRS warning light
(→ P. 5 0 4 )*2
(U.S.A.)
Parking brake indicator
(→ P. 505)
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88
GS450h_OM_OM30F70U_(U)
2. Instrument cluster
*1: These lights turn on when the power switch is turned to ON mode to indicate thata system check is being performed. They will turn off after the hybrid system is on,
or after a few seconds. There may be a malfunction in a system if the lights do not
come on, or turn off. Have the vehicle inspected by your Lexus dealer.
*2: The light flashes to indicate a malfunction.
*2
(Canada)
Parking brake indicator
(→ P. 5 0 5 )*1Master warning light
(→ P. 506)
*1
Brake system warning light
(→ P. 506)*1, 2
(if equipped)
“PCS” warning light
(→ P. 504, 515)
Open door warning light
(→ P. 506)*1
Slip indicator ( →P. 5 0 5 )
Low fuel level warning light
(→ P. 506)*1Tire pressure warning light
(→ P. 5 0 7 )
Seat belt reminder light
(→ P. 506)
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GS450h_OM_OM30F70U_(U)
892. Instrument cluster
2
Instrument cluster
The indicators inform the driver of the operating state of the vehicle’s vari-
ous systems.
Indicators
Turn signal indicator
(→ P. 2 0 9 )
(if equipped)
LKA (Lane-Keeping
Assist) indicator
(→ P. 2 7 0 )
(U.S.A.)
Headlight indicator
(→ P. 2 1 7 )*1
(if equipped)
Intuitive parking assist indi-
cator
(Canada)
Tail light indicator
(→ P. 2 1 7 ) *2
(if equipped)
“AFS OFF” indicator
(→ P. 219)
Headlight high beam indi-
cator ( →P. 2 1 8 )
*2, 3Slip indicator
(→ P. 2 8 5 )
(if equipped)
Front fog light indicator
(→ P. 222)*2VSC OFF indicator
(→ P. 2 8 5 )
“READY” indicator
( → P. 1 9 3 )
*2, 4
(if equipped)
“PCS” warning light
(→ P. 292)
EV indicator ( →P. 74 )
(U.S.A.)
Parking brake indicator
(→ P. 211)
Cruise control indicator
( → P. 235, 239)
(Canada)
Parking brake indicator
(→ P. 211)
(if equipped)
Radar cruise control indi-
cator ( →P. 2 3 9 )*2Brake hold standby indica-
tor ( →P. 2 1 4 )
Cruise control “SET” indi-
cator ( →P. 235, 239)
*2Brake hold operated indi-
cator ( →P. 2 1 4 )
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175
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4Driving
4-1. Before driving Driving the vehicle ....................... 176
Cargo and luggage .................... 187
Vehicle load limits .......................190
Trailer towing .................................. 191
Dinghy towing............................... 192
4-2. Driving procedures Power (ignition) switch.............. 193
EV drive mode ........................... 200
Hybrid transmission ..................203
Turn signal lever ......................... 209
Parking brake ..................................211
Brake Hold ..................................... 214
Horn.................................................. 216
4-3. Operating the lights and wipers
Headlight switch .......................... 217
Fog light switch............................ 222
Windshield wipers and washer.................................223
4-4. Refueling Opening the fuel tank cap ..... 230 4-5. Using the driving support
systems
Cruise control ............................. 235
Dynamic radar cruise control ............................ 239
Dynamic radar cruise control with full-speed range ............. 254
LKA (Lane-Keeping Assist) .......... 270
Driving mode select switch ...280
Driving assist systems............... 283
PCS (Pre-Collision System)..........290
BSM (Blind Spot Monitor)............. 300
• The Blind Spot Monitor function ....................................304
• The Rear Cross Traffic Alert function......................... 307
Lexus night view .......................... 310
4-6. Driving tips Hybrid vehicle driving tips....... 316
Winter driving tips ...................... 318
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4-1. Before driving
Driving the vehicle
→P. 1 9 3
With the brake pedal depressed, shift the shift lever to D. ( →P. 203)
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. ( →P. 2 0 3 )
With the shift lever in D, depress the brake pedal.
Shift the shift lever to P. ( →P. 203)
If the parking brake is in manual mode, set the parking brake.
(→ P. 211)
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, block the wheels as needed.
The following procedures should be observed to ensure safe driving:
Starting the hybrid system
Driving
Stopping
Pa r k i n g t h e ve h i c l e
1
2
3
1
2
1
2
3
4
5
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