2015 Lexus GS450h transmission

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GS450h_OM_OM30F70U_(U)
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3-5. Opening, closing the windows and moon roof
Power windows ............................. 167
Moon roof ........................................ 171
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
4Driving

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GS450h_OM_OM30F70U_(U)
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 Moni tor)............. 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

GS450h_OM_OM30F70U_(U)
1814-1. Before driving
4
Driving
CAUTION
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 steeri ng 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.
●After driving through a puddle, depress the brake pedal to make sure that the
brakes are functioning properly. Wet brake pads may prevent the brakes from
functioning properly. If the brakes on only one 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 result in an accident 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 wh ile 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 back-
ward.
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 hybrid
system. Engine braking is not availabl e with the hybrid system disengaged.
●Be careful not to shift the shift lever wi th the accelerator pedal depressed. Shift-
ing the shift lever to a gear other than P or N may lead to unexpected rapid accel-
eration of the vehicle that may cause an accident and result in death or serious
injury.

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GS450h_OM_OM30F70U_(U)
4-1. Before driving
NOTICE
■When encountering flooded roads
Do not drive on a road that has flooded after heavy rain etc. Doing so may cause
the following serious damage to the vehicle:
●Engine stalling
●Short in electrical components
●Engine damage caused by water immersion
In the event that you drive on a flooded road and the vehicle is flooded, be sure to
have your Lexus dealer check the following:
●Brake function
●Changes in quantity and quality of oil and fluid used for the engine, transmission,
differential, etc.
●Lubricant condition for the propeller shaft, bearings and suspension joints (where
possible), and the function of all joints, bearings, etc.

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GS450h_OM_OM30F70U_(U)4-2. Driving procedures
4
Driving
Hybrid transmission
While the power switch is in ON mode, move the shift lever with the
brake pedal depressed.
When shifting the shift lever between P and D, make sure that the vehicle is
completely stopped.
*1: To improve fuel efficiency and reduce noises, set the shift lever in D for normal driving.
*2: By selecting shift ranges using S mode, you can control accelerating forces and
engine braking forces.
Shifting the shift lever
Shift position purpose
Shift positionObjective or function
PParking the vehicle/starting the hybrid system
RReversing
NNeutral (Condition in which the power is not transmitted)
DNormal driving*1
SS mode driving*2 (  P. 2 0 6 )

GS450h_OM_OM30F70U_(U)
4196-2. Maintenance
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Maintenance and care
Ve h i c l e i n t e r i o r
ItemsCheck points
Accelerator pedal
• The accelerator pedal should movesmoothly (without uneven pedal
effort or catching).
Hybrid transmission “Park” mechanism
• When parked on a slope and the shiftlever is in P, is the vehicle securely
stopped?
Brake pedal
• Does the brake pedal movesmoothly?
• Does the brake pedal have appropri- ate clearance from the floor? ( P. 5 8 1 )
• Does the brake pedal have the cor- rect amount of free play? ( P. 5 8 1 )
Brakes
• The vehicle should not pull to one
side when the brakes are applied.
• The brakes should work effectively.
• The brake pedal should not feel spongy.
• The brake pedal should not get too close to the floor when the brakes are
applied.

GS450h_OM_OM30F70U_(U)
4736-3. Do-it-yourself maintenance
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Maintenance and care
14MULTIMEDIA10Navigation system, Remote Touch
15RAD NO.130Audio system
16AIR BAG10SRS airbag system, occupant classification
system
17OBD7. 5On-board diagnosis system
18ACC7. 5
Body ECU, DCM, head-up display, RR
CTRL, Remote Touch screen, navigation sys-
tem, clock, transmission
FuseAmpereCircuit

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GS450h_OM_OM30F70U_(U)
7-2. Steps to take in an emergency
If your vehicle needs to be towed
The following may indicate a problem with your transmission. Contact
your Lexus dealer or commercial towing service before towing.
●The hybrid warning message shows on the multi-information display
and the vehicle does not move.
●The vehicle makes an abnormal sound.
If towing is necessary, we recommend having your vehicle towed by
your Lexus dealer or commercial towing service, using a wheel-lift type
truck or flatbed truck.
Use a safety chain system for all towing, and abide by all state/provin-
cial and local laws.
Situations when it is necessary to contact dealers before towing