2016 Lexus GS450h steering

4447-2. Steps to take in an emergency
GS450h_OM_OM30E99U_(U)
Firmly tighten each wheel nut two or
three times in the order shown in the
illustration.
Tightening torque:
76 ft•lbf (103 N•m, 10.5 kgf•m)
Stow the flat tire, tire jack and all tools.
■The compact spare tire
●The compact spare tire is identified by the label “TEMPORARY USE ONLY” on the
tire sidewall.
●Use the compact spare tire temporarily, and only in an emergency.
●Make sure to check the tire inflation pressure of the compact spare tire. ( P. 4 7 3 )
■When using the compact spare tire
As the compact spare tire is not equipped wi th a tire pressure warning valve and trans-
mitter, low inflation pressure of the spare ti re will not be indicated by the tire pressure
warning system. Also, if you replace the compact spare tire after the tire pressure warn-
ing light comes on, th e light remains on.
■When the compact spare tire is equipped
The vehicle may become lower when driving with the compact spare tire compared to
when driving with standard tires.
■If you have a flat rear tire on a road covered with snow or ice
Install the compact spare tire on one of the front wheels of the vehicle. Perform the fol-
lowing steps and fit tire chains to the rear tires:
Replace a front tire with the compact spare tire.
Replace the flat rear tire with the tire removed from the front of the vehicle.
Fit tire chains to the rear tires.
4
5
1
2
3
WA R N I N G
■When using the compact spare tire
●Remember that the compact spare tire provid ed 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, ab rupt steering, sudden braking and shifting operations
that cause sudden engine braking.

446
GS450h_OM_OM30E99U_(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. 4 5 2 )
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
●There may be a malfunction in the immobilizer system. ( P. 74 )
●There may be a malfunction in the steering lock system.
●The hybrid system may be malfunctioni ng due to an electrical problem such
as electronic key battery depletion or a blown fuse. However, depending on
the type of malfunction, an interim meas ure is available to start the hybrid sys-
tem. ( P. 4 4 7 )
One of the following may be the cause of the problem:
●The 12-volt battery may be discharged. ( P. 4 5 3 )
●The 12-volt battery terminal connections may be loose or corroded.
(P. 3 5 8 )
One of the following may be the cause of the problem:
●The 12-volt battery may be discharged. ( P. 4 5 3 )
●One or both of the 12-volt battery terminals may be disconnected. ( P. 3 5 8 )
Contact your Lexus dealer if the problem cannot be repaired, or if repair procedures
are unknown.
Reasons for the hybrid system not starting vary depending on the situation.
Check the following and perform the appropriate procedure:
The hybrid system will not start even though the correct starting proce-
dure is being followed. ( P. 1 8 0 )
The interior lights and headlights are dim, or the horn does not sound or
sounds at a low volume.
The interior lights and headlights do not turn on, or the horn does not
sound.

GS450h_OM_OM30E99U_(U)
4738-1. Specifications
8
Vehicle specifications
*: 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 illuminated when the hybrid system is operating (If the
brake system warning light is illuminated, refer to P. 400).
Ty p e A
Brakes
Pe d a l c l e a r a n c e*4.5 in. (115 mm) Min.
Pedal free play0.04 — 0.24 in. (1.0 — 6.0 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)
Tires and wheels
Ti r e s i z e225/50R17 94W, T155/70D17 110M (spare)
Tire inflation pressure
(Recommended cold
tire inflation pressure)
Driving under normal conditions
Front: 35 psi (240 kPa, 2.4 kgf/cm2 or bar)
Rear: 35 psi (240 kPa, 2.4 kgf/cm2 or bar)
Spare: 60 psi (420 kPa, 4.2 kgf/cm2 or bar)
Driving at high speeds (above 118 mph [190 km/h]) (in coun-
tries where such speeds are permitted by law) Add 10 psi (70 kPa, 0.7 kgf/cm
2 or bar) to the front tires
and rear tires. Never exceed the maximum cold tire infla-
tion pressure indicated on the tire sidewall.
Wheel size17  7 1 /2J, 17  4T (spare)
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)

486
GS450h_OM_OM30E99U_(U)
8-1. Specifications
■Temperature A, B, C
The temperature grades are A (the highest), B, and C, representing the tire’s
resistance to the generation of heat and its ability to dissipate heat when
tested under controlled conditions on a specified indoor laboratory test
wheel.
Sustained high temperature can cause the material of the tire to degenerate and
reduce tire life, and excessive temperature can lead to sudden tire failure.
Grade C corresponds to a level of perfor mance which all passenger car tires must
meet under the Federal Motor Vehicle Safety Standard No. 109.
Grades B and A represent higher levels of performance on the laboratory test
wheel than the minimum required by law.
Warning: The temperature grades of a tire assume that it is properly inflated and
not overloaded.
Excessive speed, underinflation, or excessiv e loading, either separately or in com-
bination, can cause heat buildup and possible tire failure.
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pressure
Tire 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 un der 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 manu-
facturer
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 avail-
able as factory-installed eq uipment (whether installed
or not)
Curb weight
The weight of a motor vehicle with standard equipment,
including the maximum capacity of fuel, oil and coolant,
and if so equipped, air co nditioning 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 numb er of occupants specified
in the second column of Table 1
* that follows

494
GS450h_OM_OM30E99U_(U)
8-2. Customization
■LKA (Lane-Keeping Assist)* ( P. 232)
*:If equipped
■PCS (Pre-Collision System)* ( P. 2 2 0 )
*:If equipped
■BSM (Blind Spot Monitor)* ( P. 258)
*:If equipped
FunctionDefault
settingCustomized setting
Lane centering functionOffOn—O—
Steering assistOnOff—O—
Adjust alert type
(Steering
vibration)(Buzzer)
—O—
Alert sensitivityHighStandard—O—
Ve h i c l e s w a y w a r n i n gOnOff—O—
Vehicle sway warning sensitivityStandardLow—O—High
123
FunctionDefault settingCustomized setting
PCS (Pre-Collision System)OnOff—O—
Adjust alert timing
(Middle)
(Far)—O—
(Near)
123
FunctionDefaultsettingCustomized setting
BSM (Blind Spot Monitor)OnOff—O—
123

521What to do if... (Troubleshooting)
GS450h_OM_OM30E99U_(U)
●Did you press the power switch while firmly depressing the brake pedal?
(P. 1 8 0 )
●Is the shift lever in P? ( P. 1 8 2 )
●Is the electronic key anywhere detectable inside the vehicle? ( P. 1 3 3 )
●Is the steering wheel unlocked? ( P. 1 8 3 )
●Is the electronic key battery weak or depleted?
In this case, the hybrid system can be started in a temporary way. ( P. 4 5 2 )
●Is the 12-volt battery discharged? ( P. 4 5 3 )
●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. 4 4 8 )
●It is locked automatically to prevent theft of the vehicle. ( P. 1 8 2 )
●Is the window lock switch pressed?
The power window except for the one at the driver’s seat cannot be operated
if the window lock switch is pressed. ( P. 1 5 8 )
●The auto power off function will be oper ated if the vehicle is left in ACCES-
SORY or ON mode (the hybrid system is not operating) for a period of time.
( P. 1 8 2 )
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 turned after the hybrid system is stopped
The windows do not open or close by operating the power window
switches
The power switch is turned off automatically

527Alphabetical index
GS450h_OM_OM30E99U_(U)
Daytime running light system ........... 198
DefoggerFront windshield .................................. 291
Outside rear view mirrors .............. 291
Rear window ......................................... 291
Differential ................................................472
Dimensions ............................................. 466
Dinghy towing.......................................... 179
Display 12.3-inch display................................ 283
Drive information ..................................95
Dynamic radar cruise control with full-speed range ......................241
Energy monitor .................................... 107
LKA (Lane-Keeping Assist) .........236
Multi-information display .................. 93
Trip information .....................................86
Warning message ............................ 406
Do-it-yourself maintenance ............. 345
Door courtesy lights Location ................................................. 302
Door lock Doors ........................................................ 120
Smart access system with push-button start ............................. 133
Wireless remote control ................. 120 Doors .......................................................... 120
Automatic door locking and unlocking system .................... 123
Door glasses ......................................... 158
Door lock................................................. 122
Open door warning buzzer .......... 134
Outside rear view mirrors ..............154
Rear door child-p rotector .............. 123
Drive info 1/Drive info 2/ Drive info 3............................................. 98Drive information .................................. 95
Drive-start control .........................167, 191
Driver’s seat position memory.......... 143 Driving position memory................. 144
Memory recall function ....................145
Power easy access system ............. 143
Driving ........................................................ 166 Break-in tips ........................................... 167
Correct driving posture .................... 28
Driving mode select switch .......... 256
Hybrid vehicle driving tips .............272
Procedures .............................................166
Winter drive tips .................................274
DRS (Dynamic Rear Steering) ........ 267 Function .................................................. 267
Warning message.............................406
DVD player
*
Dynamic radar cruise control with full-speed rangeFunction .................................................... 241
Warning message.............................406
Dynamic Rear Steering (DRS) ........ 267 Function .................................................. 267
Warning message.............................406
D
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.

528Alphabetical index
GS450h_OM_OM30E99U_(U)
Eco drive mode ..................................... 256
EDR (Event data recorder) ...................10
Electric motor (traction motor) ......... 66
Electric Power Steering (EPS) ....... 267Function .................................................. 267
Warning light ........................................ 401
Warning message ............................ 406
Electronic key ........................................... 116 Battery-saving function .................... 135
If the electronic key does not operate properly.............................. 451
Replacing the battery ....................... 377
Emergency, in case of If a warning buzzer sounds.......... 400
If a warning light turns on.............. 400
If a warning message is displayed ....................................... 406
If the 12-volt battery is discharged .........................................453
If the electronic key does not operate properly ......... 451
If the hybrid system will not start........................................446
If the parking brake cannot be released........................449
If the shift lever cannot be shifted from P ........... 448
If you have a flat tire .......................... 437
If you think something is wrong.............................................. 399
If your vehicle becomes stuck ..... 462
If your vehicle has to be stopped in an emergency .............................393
If your vehicle needs to be towed .......................................394
If your vehicle overheats ................ 457 Emergency flashers ............................ 392
Energy monitor ...................................... 108
Engine
Accessory mode .................................. 181
Compartment ..................................... 349
Engine switch ....................................... 180
Hood........................................................ 347
How to start the hy brid system ... 180
Identification number ....................... 467
Ignition switch (power switch) ................................. 180
Overheating......................................... 457
Power switch ........................................ 180
Engine compartment cover............. 350
Engine coolant ...................................... 354 Capacity ................................................... 471
Checking ............................................... 354
Preparing and checking before winter .....................................274
Engine coolant temperature gauge ........................................................ 86
Engine oil ................................................... 351 Capacity ................................................. 469
Checking .................................................351
Oil level warning message ...........406
Oil pressure warning message...........................406
Preparing and checking before winter .....................................274
Engine oil maintenance data ........... 340
E