2015 Lexus GS450h spare wheel

5107-2. Steps to take in an emergency
GS450h_OM_OM30F70U_(U)
CAUTION
■If both the ABS and the brake system warning lights remain on
Stop your vehicle in a safe place immediately and contact your Lexus dealer. The
vehicle will become extremely unstable during braking, and the ABS system may
fail, which could cause an accident resulting in death or serious injury.
■When the electric power steering system warning light comes on
The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than usual when operating, hold firmly and
operate using more force than usual.
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could cause a loss of
vehicle control and result in death or serious injury.
●Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pres-
sure immediately.
●If the tire pressure warning light comes on even after tire inflation pressure adjust-
ment, it is probable that you have a flat tire. Check the tires. If a tire is flat, change
it with the spare tire and have the flat tire repaired by the nearest Lexus dealer.
●Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you could
lose control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.

541
GS450h_OM_OM30F70U_(U)
7
When trouble arises
7-2. Steps to take in an emergency
If you have a flat tire
●Stop the vehicle on a hard, flat surface.
●Set the parking brake.
●Shift the shift lever to P.
●Stop the hybrid system.
●Turn on the emergency flashers. ( P. 4 9 4 )
Your vehicle is equipped with a spar e tire. The flat tire can be replaced
with the spare tire.
For details about tires: P. 4 4 3
CAUTION
■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.
Before jacking up the vehicle

5427-2. Steps to take in an emergency
GS450h_OM_OM30F70U_(U)
Location of the spare tire, jack and tools
Jack handle
Parking brake release tool
Screwdriver
Towing eyeletWheel nut wrench
Spare tire
Jack1
2
3
4
5
6
7

5497-2. Steps to take in an emergency
GS450h_OM_OM30F70U_(U)
7
When trouble arises
Remove any dirt or foreign mat-
ter from the wheel contact sur-
face.
If foreign matter is on the wheel con-
tact surface, the wheel nuts may
loosen while the vehicle is in motion,
causing the tire to come off.
Install the spare 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.
Installing the spare tire
1
2
Tapered portion
Disc wheel
seat
Wa s h e r
Disc wheel

5517-2. Steps to take in an emergency
GS450h_OM_OM30F70U_(U)
7
When trouble arises
■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. 5 8 2 )
■When using the compact spare tire
As the compact spare tire is not equipped with a tire pressure warning valve and
transmitter, low inflation pressure of the spare tire will not be indicated by the tire
pressure warning system. Also, if you replace the compact spare tire after the tire
pressure warning light comes on, the light remains on.
■When the compact spare tire is equipped
The vehicle becomes lower when driving wi th 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 th e front wheels of the vehicle. Perform the
following 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.
1
2
3

5537-2. Steps to take in an emergency
GS450h_OM_OM30F70U_(U)
7
When trouble arises
CAUTION
■Speed limit when using the compact spare tire
Do not drive at speeds in excess of 50 mph (80 km/h) 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 accident 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 stor-
age location to reduce the possibility of pe rsonal injury during a collision or sudden
braking.
NOTICE
■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 perfor-
mance.
■When replacing the tires
When removing or fitting the wheels, tire s or the tire pressure warning valve and
transmitter, contact your Lexus dealer as the tire pressure warning valve and trans-
mitter may be damaged if not handled correctly.

GS450h_OM_OM30F70U_(U)
5838-1. Specifications
8
Vehicle specifications
Compact spare tire
Ti r e s i z eT155/70D17 110M, T145/70D18 107M
Tire inflation pressure
(Recommended cold tire
inflation pressure)
60 psi (420 kPa, 4.2 kgf/cm2 or bar)
Wheel size17  4T (T155/70D17), 18  4T (T145/70D18)
Wheel nut torque76 f t•lbf (103 N•m, 10.5 kgf•m)
Light bulbs
Light bulbsBulb No.WTy p e
Exterior
Discharge headlights*35A
Fog lights*19B
Front turn signal lights7444NA28 /8C
Rear turn signal lightsW21W21D
Back-up lightsW16W16D
Outer foot lightsW5W5D
Interior
Door courtesy lights5D
Vanity lights8D
Tr u n k l i g h t3.8D
A: D4S discharge bulbs
B: H16 halogen bulbs
C: Wedge base bulbs (amber) D: Wedge base bulbs (clear)
*: If equipped

647Alphabetical index
GS450h_OM_OM30F70U_(U)
S-FLOW mode ..................................... 349
Shift lever ................................................. 203Hybrid transmission......................... 203
If the shift lever cannot be shifted from P ........... 556
Shift lever light ....................................... 363
Shift lock system.................................... 556
Side airbags ............................................... 39
Side display ............................................. 332
Side marker lights................................... 217 Light switch ............................................. 217
Replacing light bulbs ....................... 489
Welcome light illumination control ....................................................123
Side mirrors ..............................................164 Adjusting and folding........................ 164
BSM (Blind spot monitor) ............ 300
Linked mirror function when reversing ................................. 165
Mirror position memory .................. 152
Side turn signal lights .......................... 209 Replacing light bulbs ....................... 489
Turn signal lever ................................ 209
Smart access system with push-button start .......................123 Antenna location ................................. 125
Entry functions .......................................123
Starting the hybrid system .............. 193
Warning message .............................. 519
Snow mode ............................................. 204
Snow tires ................................................ 322 Spare tire ................................................... 541
Inflation pressure................................583
Storage location ................................. 542
Spark plug ................................................579
Specifications..........................................574
Speedometer .............................................. 91
Sport mode ............................................. 280
Steering lock ............................................ 196 Column lock release ......................... 197
Steering lock system warning message...........................539
Steering wheel ......................................... 161 Adjustment............................................... 161
Audio switches
*
Heated steering wheel .................. 380
Power easy access system ............. 152
Steering wheel position memory .............................. 152
Stop lights Replacing light bulbs .......................489
Storage feature ..................................... 366
Stuck If the vehicle becomes stuck.......... 571
Sun shade Rear .......................................................... 387
Rear door ............................................. 388
Roof ............................................................ 172
Sun visors..................................................375
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.