2007 Lexus GS350 spare tire

5
When trouble arises
479
5-2. Steps to take in an emergency
Firmly tighten each 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.
STEP4
■If you have a flat rear tire on a road covered with snow or ice
Install the compact spare tire on the front of the v
ehicle. 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 vehi -
cle.
Fit tire chains to the rear tires.
■After completing the tire change
The tire pressure warning system must be reset. ( P.
3 9 2 )
STEP5
STEP1
STEP2
STEP3

5
When trouble arises
481
5-2. Steps to take in an emergency
CAUTION
■When using the spare tire
●Remember that your spare tire is specifically designed for use with your vehicle.
Do not use your spare tire on another vehicle.
●Do not use two spare tires simultaneously.
●Replace the spare tire with a standard tire as soon as possible.
●Avoid sudden acceleration, deceleration and braking, as well as sharp cornering.
■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. Failing to observe
this precaution may lead to an accident.

482
5-2. Steps to take in an emergency
NOTICE
■Do not drive the vehicle with 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.
■Be careful when driving over bumps with the compact spare tire installed on the
vehicle
The vehicle becomes lower when driving with the compact spare tire compared to
when driving with standard tires. Be careful when driving over uneven road sur-
faces.
■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
●When removing or fitting the wheels, tires or the tire pressure warning valve and
transmitter, contact your Lexus dealer as the tire pressure warning valve and
transmitter may be damaged if not handled correctly.
●Replace the grommets for the tire pressure warning valves and transmitters as
well.
■To avoid damaging the tire pressure warning valves and transmitters
Do not use liquid sealants on flat tires.

505
6-1. Specifications
6
Vehicle specifications
Steering
Tires and wheels
Type A
Free playLess than 1.2 in. (30 mm)
Ti r e s i z e245/40R18 93Y, P245/40R18 93V, T155/
70D17 110M (spare)
Front and rear tire inflation 
pressure
(Recommended cold tire inflation
pressure)
Driving under normal conditions33 psi (230 kPa, 2.3 kgf/cm2 or bar)
Driving at high speeds above 100 mph
(160km/h) (in countries where such speeds
are permitted by law) Add 9 psi (60 kPa, 0.6 kgf/cm
2 or bar) to
the front tires and rear tires. Never exceed
the maximum cold tire inflation pressure
indicated on the tire sidewall.
Spare tire inflation pressure 
(Recommended cold tire inflation
pressure)
60 psi (420 kPa, 4.2 kgf/cm2 or bar)
Wheel size18  8 JJ, 17  4T (spare)
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)

506
6-1. Specifications
Ty p e B
Ti r e s i z e225/50R17 94W, P225/50R17 93V, T155/
70D17 110M (spare)
Front and rear tire inflation 
pressure
(Recommended cold tire inflation
pressure)
Driving under normal conditions 33 psi (230 kPa, 2.3 kgf/cm2 or bar)
Driving at high speeds above 100 mph
(160km/h) (in countries where such speeds
are permitted by law) Add 7 psi (50 kPa, 0.5 kgf/cm
2 or bar) to
the front tires and rear tires. Never exceed
the maximum cold tire inflation pressure
indicated on the tire sidewall.
Spare tire inflation pressure 
(Recommended cold tire inflation
pressure)
60 psi (420 kPa, 4.2 kgf/cm2 or bar,)
Wheel size17  7 1 /2 JJ, 17  4T (spare)
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)

512
6-1. Specifications
Typical DOT and tire identification number (TIN)
DOT symbol*
Tire Identification Number (TIN)
Tire manufacturer’s identifica-
tion mark
Tire size code
Manufacturer’s optional tire
type code (3 or 4 letters)
Manufacturing week
Manufacturing year
*: The DOT symbol certifies that
the tire conforms to applicable
Federal Motor Vehicle Safety
Standards.
Radial tires or bias-ply tires
A radial tire has RADIAL on the sidewall. A tire not marked RADIAL is a
bias-ply tire.
TUBELESS or TUBE TYPE
A tubeless tire does not have a tube and air is directly filled in the tire. A tube
type tire has a tube inside the tire and the tube maintains the air pressure.
Load limit at maximum cold tire inflation pressure ( P. 5 1 7 )
Maximum cold tire inflation pressure ( P. 5 1 7 )
This means the pressure to which a tire may be inflated.
Uniform tire quality grading
For details, see “Uniform Tire Quality Grading” that follows.
Summer tire or all season tire (P. 395)
An all season tire has “M+S” on the si dewall. A tire not marked “M+S” is a
summer tire.
“TEMPORARY USE ONLY” ( P. 4 74 )
A compact spare tire is identified by the phrase “TEMPORARY USE ONLY”
molded into its sidewall. This tire is designed for temporary emergency use only.

537
Alphabetical index
Reminder light.....................................452
Seat belt extenders .............................. 36
Seat belt pretensioners....................... 34
Seat heaters................................. 323, 325
Seat ventilators...................................... 325
Seating capacity ....................................... 171
Seats Child seats/child restraint 
system installation ............................... 81
Cleaning ................................................ 360
Driving position memory .................. 27
Head restraint ........................................ 30
Properly sitting in the seat................. 57
Seat adjustment ...................................... 25
Seat adjustment precautions ........... 25
Seat heaters.............................. 323, 325
Ventilated seats .................................. 325
Service reminder indicators ................ 111
Shift lever If the shift lever cannot be 
shifted from P ................................... 487
Transmission ......................................... 100
Shift lock system .................................... 487
Shopping bag hooks ............................. 331
Side airbags ............................................... 59
Side marker lights Switch .......................................................... 116
Side mirror Adjusting and folding ........................... 41
Driving position memory .................. 27
Smart access system with 
push-button start Antenna location ...................................... 6
Entry function ............................................. 4
Starting the hybrid system ................ 97
Spare tire Inflation pressure ............................... 506Spare tire ................................................
477
Spark plug................................................ 502
Specifications ......................................... 498
Speedometer .......................................... 106
Steering wheel Adjustment ............................................... 39
Audio switches.................................... 262
Driving position memory .................. 27
Storage compartment ......................... 313
Storage feature....................................... 310
Stuck If your vehicle becomes stuck .... 499
Sun visors .................................................. 316
Switch Fog light switch ...................................... 119
Lexus link system switches............ 343
Light switches ......................................... 116
Mode select switch .............................. 101
Power door lock switch ...................... 17
Power switch........................................... 97
Power window switch ........................ 43
Window lock switch............................ 43
Wipers and washer switch ............ 120
Tail lights Switch.......................................................... 116
Theft deterrent system Alarm........................................................... 54
Engine immobilizer system.............. 52
Theft prevention labels .......................... 56
Tire inflation pressure ......................... 506
Tire information Glossary .................................................. 519
Size ............................................................. 516
Tire identification number............... 514
Uniform tire quality grading ........... 517
T

538
Alphabetical index
TiresChains ....................................................... 174
Checking ................................................. 391
Compact spare tire ........................... 477
If you have a flat tire .............. 474, 476
Inflation pressure............................... 506
Information.............................................. 512
Pressure warning system ................ 391
Replacing ............................................... 476
Rotating tires .......................................... 391
Size .......................................................... 506
Snow tires ................................................ 175
Tools ........................................................... 476
Total load capacity .................................. 171
Touch screen ........................................... 180
Towing Dinghy towing ....................................... 178
Emergency towing ........................... 439
Trailer towing......................................... 177
TRAC (Traction control) .................... 159
Transmission If the shift lever cannot be 
shifted from P ................................... 487
Mode select switch.............................. 101
S mode...................................................... 102
Transmission ......................................... 100
Trip meter ................................................. 107
Trunk Extending a space............................. 332
Opener ........................................................ 21
Trunk light.................................................. 23
Wattage................................................. 508
Turn signal lights Replacing light bulbs........................ 438
Switch ....................................................... 104
Wattage................................................. 508Vanity lights
Vanity lights............................................ 317
Wattage ................................................. 508
Vanity mirrors ..........
...................................317
VDIM (Vehicle Dynamics 
Integrated Management) ............... 160
Vehicle identification number......... 499
Vehicle load limits ................................... 171
Ventilators ............................................... 325
VGRS (Variable Gear Ratio 
Steering) ................................................ 159
VSC (Vehicle Stability Control) ..... 159
Warning buzzers Brake system ....................................... 449
Downshifting.......................................... 103
Open door ............................................ 451
Seat belt reminder ............................ 452
Warning lights Anti-lock brake system (ABS) ..... 451
Brake system ....................................... 449
Charging system ............................... 450
ECB/VSC (Electronically 
Controlled Brake System/ 
Vehicle Stability Control)............ 451
Electric power steering  warning light....................................... 451
Low fuel level......................................... 451
Malfunction indicator lamp .......... 450
Master warning light........................ 452
Open door ............................................. 451
Pre-collision system........................... 451
Seat belt reminder light .................. 452
SRS airbags .......................................... 450
Tire pressure warning light .......... 452
V
W