2015 Lexus GS450h steering

5397-2. Steps to take in an emergency
GS450h_OM_OM30F70U_(U)
7
When trouble arises
InteriorbuzzerExterior
buzzerWa r n i n g m e s s a g eDetailsCorrection procedure
Once
The driver’s door
was opened and
closed with the
power switch
turned off and then
the power switch
was put in ACCES-
SORY mode twice
without the hybrid
system being
started.
Press the
power
switch while
depressing
the brake
pedal.
During an hybrid
system starting pro-
cedure in the event
that the electronic
key was not func-
tioning properly
(  P. 5 6 0 ) , t h e
power switch was
touched with the
electronic key.
Press the
power
switch
within 10
seconds of
the buzzer
sounding.
Once
The steering lock
could not be
released within 3
seconds of the
power switch being
pressed.
Press the
power
switch while
depressing
the brake
pedal and
moving the
steering
wheel left
and right.
Once
The power switch
has been turned off
with the shift lever
in a position other
than P or N.
Shift the
shift lever to
P.
(Flashes)
(Flashes)
(Flashes)

5527-2. Steps to take in an emergency
GS450h_OM_OM30F70U_(U)
CAUTION
■When using the compact spare tire
●Remember that the compact spare tire provided is specifically designed for use
with your vehicle. Do not use your compact spare tire on another vehicle.
●Do not use more than one compact spare tire simultaneously.
●Replace the compact spare tire with a standard tire as soon as possible.
●Avoid sudden acceleration, abrupt steering, sudden braking and shifting opera-
tions that cause sudden engine braking.
■When the compact spare tire is attached
The vehicle speed may not be correctly detected, and the following systems may
not operate correctly:
• ABS & Brake assist
•VSC
•TRAC
•Cruise control
• Dynamic radar cruise control (if equipped)
•PCS (if equipped)
•EPS
•AFS (if equipped) •AVS
• LKA (Lane-Keeping Assist)
(if equipped)
• Lexus parking assist monitor
•Intuitive parking as sist (if equipped)
• Navigation system (if equipped)
• DRS (if equipped)
• VGRS (if equipped)
•LDH (if equipped)

554
GS450h_OM_OM30F70U_(U)
7-2. Steps to take in an emergency
If the hybrid system will not start
One of the following may be the cause of the problem:
●The electronic key may not be functioning properly. (P. 560)
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
●There may be a malfunction in the immobilizer system. ( P. 8 1 )
●There may be a malfunction in the steering lock system.
●The hybrid system may be malfunctio ning due to an electrical problem
such as electronic key battery de pletion or a blown fuse. However,
depending on the type of malfuncti on, an interim measure is available
to start the hybrid system. ( P. 555)
One of the following may be the cause of the problem:
●The 12-volt battery may be discharged. ( P. 562)
●The 12-volt battery terminal connecti ons may be loose or corroded.
Reasons for the hybrid system not st arting vary depending on the situa-
tion. Check the following and perf orm the appropriate procedure:
The hybrid system will not start even though the correct starting
procedure is being followed. ( P. 1 9 3 )
The interior lights and headlights are dim, or the horn does not
sound or sounds at a low volume.

GS450h_OM_OM30F70U_(U)
5818-1. Specifications
8
Vehicle specifications
Your Lexus vehicle is filled with “Toyota Genuine Differential Gear Oil” at the fac-
tory.
Use Lexus approved “Toyota Genuine Differential Gear Oil” or an equivalent of
matching quality to satisfy the above specification. Please contact your Lexus dealer
for further details.
*: Minimum pedal clearance when depressed with a force of 112.4 lbf (500 N,
51.0 kgf) while the hybrid system is operating.
When performing the brake pedal inspection, also be sure to check that the
brake system warning light is not illumina ted when the hybrid system is operating
(If the brake system warning light is illuminated, refer to P. 503).
Differential
Oil capacity1.43 qt. (1.35 L, 1.19 Imp.qt.)
Oil type and viscosityToyota Genuine Differential gear oil LT
75W-85 GL-5 or equivalent
Brakes
Pe d a l c l e a r a n c e*4.5 in. (115 mm) Min.
Pedal free play0.04 — 0.08 in. (1.0 — 2.0 mm)
Brake pad wear limit0.04 in. (1.0 mm)
Parking brake lining wear limit0.04 in. (1.0 mm)
Fluid typeSAE J1703 or FMVSS No. 116 DOT 3
Steering
Free playLess than 1.2 in. (30 mm)

594
GS450h_OM_OM30F70U_(U)
8-1. Specifications
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pres-
sureTire pressure when the vehicle has been parked for
three hours or more, or has not been driven more
than 1 mile or 1.5 km under that condition
Maximum inflation pres-
sureThe maximum cold inflated pressure to which a tire
may be inflated, shown on the sidewall of the tire
Recommended inflation
pressureCold tire inflation pressure recommended by a man-
ufacturer
Accessory weight
The combined weight (in excess of those standard
items which may be replaced) of hybrid transmission,
power steering, power brakes, power windows,
power seats, radio and heater, to the extent that these
items are available as factory-installed equipment
(whether installed or not)
Curb weight
The weight of a motor vehicle with standard equip-
ment, including the maximum capacity of fuel, oil and
coolant, and if so equipped, air conditioning and
additional weight optional engine
Maximum loaded vehicle
weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant weight150 lb. (68 kg) times the number of occupants speci-
fied in the second column of Table 1
* that follows
Occupant distributionDistribution of occupants in a vehicle as specified in
the third column of Table 1
* below
Production options weight
The combined weight of installed regular production
options weighing over 5 lb. (2.3 kg) in excess of the
standard items which they replace, not previously
considered in curb weight or accessory weight,
including heavy duty brakes, ride levelers, roof rack,
heavy duty 12-volt battery, and special trim
RimA metal support for a tire or a tire and tube assembly
upon which the tire beads are seated

630What to do if... (Troubleshooting)
GS450h_OM_OM30F70U_(U)
●Did you press the power switch while firmly depressing the
brake pedal? ( P. 193)
●Is the shift lever in P? ( P. 1 9 6 )
●Is the electronic key anywhere detectable inside the vehicle?
( P. 1 2 6 )
●Is the steering wheel unlocked? ( P. 1 9 7 )
●Is the electronic key battery weak or depleted?
In this case, the hybrid system can be started in a temporary
way. ( P. 560)
●Is the 12-volt battery discharged? ( P. 562)
●Is the power switch in ON mode?
If you cannot release the shift lever by depressing the brake
pedal with the power switch in ON mode ( P. 5 5 6 )
●It is locked automatically to prevent theft of the vehicle.
( P. 1 9 6 )
If you think something is wrong
The hybrid system does not start
The shift lever cannot be shifted from P even if you depress the
brake pedal
The steering wheel cannot be turn ed after the hybrid system is
stopped

637Alphabetical index
GS450h_OM_OM30F70U_(U)
Daytime running light system .......... 220
DefoggerFront windshield .................................345
Outside rear view mirrors ............ 360
Rear window ....................................... 360
Differential ................................................ 581
Dimensions ............................................. 574
Dinghy towing..........................................192
Display 12.3-inch display.................................. 331
Dynamic radar cruise control......239
Lexus night view .................................... 311
LKA (Lane-Keeping Assist) ......... 274
Multi-information display ..................96
Trip information ..................................... 97
Warning message .............................. 513
Do-it-yourself maintenance ............. 423
Door courtesy lights Location ..................................................363
Wattage ................................................. 583
Door lock Doors ........................................................ 139
Smart access system with push-button start ..............................123
Wireless remote control ................. 136
Doors...........................................................139 Automatic door locking and unlocking system...................... 141
Door glasses ..........................................167
Door lock ................................................ 139
Open door warning buzzer........... 127
Open door warning light.............. 506
Outside rear view mirrors .............. 164
Rear door child-protector.............. 140 Driver’s seat position memory.......... 152
Driving position memory.................153
Memory recall function ................... 155
Power easy access system ............. 152
Driving ........................................................ 176 Break-in tips ........................................... 177
Correct driving posture .................... 30
Driving mode select switch ..........280
Hybrid vehicle driving tips ..............316
Procedures ............................................. 176
Winter drive tips ................................. 318
DRS (Dynamic Rear Steering) ....... 284 Function .................................................. 284
Warning message...............................519
DVD player
*
Dynamic radar cruise control ......... 239 Function .................................................. 239
Warning message.................. 515, 525
Dynamic radar cruise control with full-speed range Function .................................................. 254
Warning message.................. 515, 526
Dynamic Rear Steering (DRS) ....... 284 Function .................................................. 284
Warning message...............................519
Eco drive mode..................................... 280
EDR (Event data recorder).....................11
Electric motor (traction motor).......... 72
Electric Power Steering (EPS) ....... 284 Function .................................................. 284
Warning light .......................................504
Warning message.............................. 518
D
E
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.

638Alphabetical index
GS450h_OM_OM30F70U_(U)
Electronic key ......................................... 120Battery-saving function .................... 129
If the electronic key does not operate properly............................ 559
Replacing the battery ...................... 460
Emergency, in case of If a warning buzzer sounds.......... 503
If a warning light turns on.............. 503
If a warning message is displayed ......................................... 513
If the 12-volt battery is discharged .........................................562
If the electronic key does not operate properly ....... 559
If the hybrid system will not start....................................... 554
If the parking brake cannot be released ........................557
If the shift lever cannot be shifted from P ........... 556
If you have a flat tire ........................... 541
If you think something is wrong.............................................. 502
If your vehicle becomes stuck ...... 571
If your vehicle has to be stopped in an emergency ............................ 495
If your vehicle needs to be towed ...................................... 496
If your vehicle overheats ............... 566
Emergency flashers ............................. 494
Energy monitor ........................................ 112 Engine
Accessory mode .................................194
Compartment ..................................... 429
Engine switch ........................................193
Hood........................................................ 426
How to start the hy brid system ....193
Identification number....................... 575
Ignition switch (power switch) ..................................193
Overheating.........................................566
Power switch .........................................193
Engine compartment cover............. 430
Engine coolant .......................................434 Capacity................................................. 579
Checking ............................................... 434
Preparing and checking before winter ..................................... 318
Engine coolant temperature gauge .......................................................... 91
Engine oil ................................................... 431 Capacity................................................. 577
Checking ................................................. 431
Oil level warning message ........... 525
Oil pressure warning message.............................514
Preparing and checking before winter ..................................... 318
Engine oil maintenance data ............. 416
Engine switch ........................................... 193
EPS (Electric Power Steering) ....... 284 Function .................................................. 284
Warning light .......................................504
Warning message.............................. 518
EV drive mode ...................................... 200
Event data recorder (EDR).....................11