2017 Lexus GS300h spare tire

5047-2. Steps to take in an emergency
GS450h_300h_OM_OM30F92E_(EE) Remove any dirt or foreign matter
from the wheel contact surface.
If foreign matter is on the wheel contact
surface, the wheel nuts may loosen
while the vehicle is in motion, causing
the tire to come off.
Install the tire and loosely tighten each wheel nut by hand by approximately
the same amount.
When replacing an aluminum wheel
with a steel wheel, tighten the wheel
nuts until the tapered portion comes
into loose contact with the disc
wheel seat.
When replacing an aluminum wheel
with an aluminum wheel, turn the
wheel nuts until the washers come
into contact with the disc wheel.
Lower the vehicle.
Installing th
e spare tire
1
2
Disc wheel
seat
Tapered portion
Disc wheel
Washer
Disc wheel
3

507
7-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30F92E_(EE)
WARNING
■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, abrupt steerin g, sudden braking and shifting operations
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:
■Speed limit when using the compact spare tire
Do not drive at speeds in excess of 80 km /h (50 mph) when a compact spare tire is
installed on the vehicle.
The compact spare tire is not designed for driving at high speeds. Failure to observe
this precaution may lead to an accid ent causing death or serious injury.
■After using the tools and jack
Before driving, make sure all the tools and jack are securely in place in their storage
location to reduce the possibility of personal injury during a collision or sudden brak-
ing.

5087-2. Steps to take in an emergency
GS450h_300h_OM_OM30F92E_(EE)
NOTICE
■Be careful when driving over bumps with the compact spare tire installed on the vehi-
cle.
The vehicle may become lower when driving with the compact spare tire compared to
when driving with standard tires. Be careful when driving over uneven road surfaces.
■Driving with tire chains and the compact spare tire
Do not fit tire chains to the compact spare tire.
Tire chains may damage the vehicle body and adversely affect driving performance.
■When replacing the tires (vehicles with the tire pressure warning system)
When removing or fitting the wheels, tires or the tire pressure warning valve and trans-
mitter, contact any authorized Lexus retailer or Lexus authorized repairer, or any reli-
able repairer as the tire pressure warning valve and transmitter may be damaged if not
handled correctly.

509
7
7-2. Steps to take in an emergency
When trouble arises
GS450h_300h_OM_OM30F92E_(EE)
If you have a flat tire (vehicles without spare tire)
Your vehicle is not equipped with a spare tire, but instead is equipped with an
emergency tire puncture repair kit.
A puncture caused by a nail or screw passing through the tire tread can be
repaired temporarily with the emergency tire puncture repair kit.
WARNING
■If you have a flat tire
Do not continue driving with a flat tire.
Driving even a short distance with a flat tire can damage the tire and the wheel beyond
repair, which could result in an accident.
Driving with a flat tire may cause a ci rcumferential groove on the side wall.
In such a case, the tire may explode when using a repair kit.

525
7
7-2. Steps to take in an emergency
When trouble arises
GS450h_300h_OM_OM30F92E_(EE)
If the parking brake cannot be released
●Shift the shift lever to P.
● Turn the power switch off.
● Check that the parking brake indicator is off.
● Chock the tires.
Take out the parking brake release
tool and the screwdriver from the
trunk. ( P. 499, 511)
Fit the parking brake release tool into
the screwdriver handle.
Vehicles with spare tire: Take out the spare tire. ( P. 501)
Vehicles without spare tire: Remove the center auxiliary box. ( P. 513)
In the event that the 12-volt battery is discharged or switch operation does not
release the parking brake, the parking brake can be released manually using
the procedure below. This procedure should be performed only if necessary,
such as in an emergency.
If the switch cannot be operated even when the 12-volt battery is normal, the
parking brake system may be malfunctioning. Have the vehicle inspected by
any authorized Lexus retailer or Lexus authorized repairer, or any reliable
repairer immediately.
Before releasing the parking brake manually
Releasing the parking brake manually
1
2

557
8
8-1. Specifications
Vehicle specifications
GS450h_300h_OM_OM30F92E_(EE)
Type D
Compact spare tire (if equipped)
■When towing a trailer
Add 20.0 kPa (0.2 kgf/cm2
or bar, 3 psi) to the recommend ed tire inflation pressure and
drive at speeds below 100 km/h (62 mph).
Tire size235/40R19 96Y XL (front) and 265/35R19 94Y (rear)
Tire inflation
pressure
(Recommended
cold tire inflation
pressure)Vehicle speed
Front tire
kPa (kgf/cm 2
or
bar, psi)Rear tire
kPa (kgf/cm 2
or
bar, psi)
More than 220 km/h
(137 mph)300 (3.0, 44)300 (3.0, 44)
220 km/h (137 mph)
or less240 (2.4, 35)250 (2.5, 36)
Wheel size19  8J (235/40R19), 19  9J (265/35R19)
Wheel nut torque103 N

581
What to do if... (Troubleshooting)
GS450h_300h_OM_OM30F92E_(EE) ●
When a warning light turns on or a warning message is displayed, refer to
P. 460, 466.
● Vehicles with spare tire
Stop the vehicle in a safe place and replace the flat tire with the spare tire. ( P. 498)
● Vehicles without spare tire
Stop the vehicle in a safe place and repair the flat tire temporarily with the
emergency tire puncture repair kit. ( P. 509)
● Try the procedure for when the vehicle becomes stuck in mud, dirt, or snow. ( P. 542)
A warning light turns on or a warning message is displayed
When a problem has occurred
If you have a flat tire
The vehicle becomes stuck

587
Alphabetical index
GS450h_300h_OM_OM30F92E_(EE) Engine coolant temperature
gauge....................................................... 105
Engine oil..................................................406 Capacity ................................................ 550
Checking .............................................. 406
Oil level warning message ...........466
Oil pressure warning message..............................................466
Preparing and checking before winter .................................... 334
Engine switch ...........................................217 Auto power off function ...................219
Changing the power switch modes ................................................... 218
If your vehicle has to be stopped in an emergency..........453
Starting the hybrid system............... 217
EPS (Electric Power Steering)........ 325
Function .................................................. 325
Warning light .........................................461
Warning message.............................466
EV drive mode ....................................... 222
First-aid kit storage net....................... 375
Flat tire
Vehicles with spare tire ................. 498
Vehicles without spare tire .......... 509
Floor mats ................................................... 34
Fluid Brake........................................................554
Hybrid transmission .........................553
Washer ...................................................... 411 Fog lights .................................................. 250
Replacing light bulbs ....................... 449
Switch ...................................................... 250
Follow me home system .................... 238
Footwell light .......................................... 366
Front air conditioning system .......... 346
Front fog lights ....................................... 250 Replacing light bulbs ....................... 449
Switch ...................................................... 250
Wattage ................................................. 449
Front personal lights............................ 367
Front position lights ............................. 237 Light switch............................................ 237
Replacing light bulbs ....................... 449
Welcome light illumination control ................................................... 140
Front seats ................................................. 175 Adjustment ............................................. 175
Cleaning ................................................ 394
Correct driving posture.................... 36
Driving position memory ................ 178
Head restraints .....................................183
Power easy access system............. 178
Seat heaters.......................................... 362
Seat position memory ....................... 178
Seat ventilators ................................... 362
Front turn signal lights ..........................231 Replacing light bulbs ........... 443, 449
Turn signal lever................................... 231
Wattage .................................................558
F
*: Refer to the “NAVIGATION AND MULTIMEDIA
SYSTEM OWNER’S MANUAL”.