spare tire Lexus HS250h 2012 User Guide

5
When trouble arises
537
5-2. Steps to take in an emergency
HS250h_U_75050UFirmly 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. 5 6 7 )
■After completing the tire change
The tire pressure warning system must be reset. ( →P. 4 5 3 )
■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.
■If you have a flat front tire on a road covered with snow or ice
Install the compact spare tire on one of the rear wheels of the vehicle. Perform the
following steps and fit tire chains to the front tires:
Replace a rear tire with the compact spare tire.
Replace the flat front tire with the tire removed from the rear of the vehi-
cle.
Fit tire chains to the front tires.

538
5-2. Steps to take in an emergency
HS250h_U_75050U
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, deceleration and braking, as well as sharp cornering.
■When storing the compact spare tire
Be careful not to catch fingers or other body parts between the compact spare tire
and the body of the vehicle.
■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
●Enhanced VSC
●TRAC
●Cruise control system
●Dynamic radar cruise control system (if equipped)
●Lane-Keeping assist (if equipped)
●Adaptive Front-lighting System (if equipped)
●Intuitive parking assist (if equipped)
●Pre-collision system (if equipped)
●Navigation system (if equipped)
■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.

540
5-2. Steps to take in an emergency
HS250h_U_75050U
CAUTION
• Have the wheel nuts tightened with a torque wrench to 76 ft•lbf (103 N•m,10.5 kgf•m) as soon as possible after changing wheels.
• When installing a tire, only use wheel nuts that have been specifically designed for that wheel.
• If there are any cracks or deformations in the bolt screws, nut threads or bolt holes of the wheel, have the vehicle inspected by your Lexus dealer.
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 trans-
mitter may be damaged if not handled correctly.
■To avoid damage to the tire pressu re warning valves and transmitters
When a tire is repaired with liquid sealants, the tire pressure warning valve and
transmitter may not operate properly. If a liquid sealant is used, contact your Lexus
dealer or other qualified service shop as soon as possible. Make sure to replace the
tire pressure warning valve and transmitter when replacing the tire. ( →P. 4 5 2 )

567
6-1. Specifications
6
Vehicle specifications
HS250h_U_75050U
Tires and wheels
Ty p e A
Ty p e B
Ti r e s i z eP215/55R17 93V, T145/70D17 106M (spare)
Tire inflation pressure
(recommended cold tire
inflation pressure)
Driving under normal conditions Front:
33 psi (230 kPa, 2.3 kgf/cm
2 or bar)
Rear:
33 psi (230 kPa, 2.3 kgf/cm
2 or bar)
Spare:
60 psi (420 kPa, 4.2 kgf/cm
2 or bar)
Wheel size17 × 7J, 17 × 4T (spare)
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)
Ti r e s i z eP225/45R18 91W, T145/ 70D17 106M (spare)
Tire inflation pressure
(recommended cold tire
inflation pressure)
Driving under normal conditions
Front:
33 psi (230 kPa, 2.3 kgf/cm
2 or bar)
Rear:
32 psi (220 kPa, 2.2 kgf/cm
2 or bar)
Spare:
60 psi (420 kPa, 4.2 kgf/cm
2 or bar)
Wheel size18 × 7 1 /2J, 17 × 4T (spare)
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)

572
6-1. Specifications
HS250h_U_75050U
Tire information
Ty p i c a l t i r e s y m b o l s
Full size tire
Compact spare tireTire size (→P. 575)
DOT and Tire Identification Number (TIN) (→ P. 5 74 )
Location of treadwear indicators (→ P. 4 5 1 )

573
6-1. Specifications
6
Vehicle specifications
HS250h_U_75050U
Tire ply composition and materials
Plies are layers of rubber-coated parallel cords. Cords are the strands
which form the plies in a tire.
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 put into the tire. A
tube type tire has a tube inside the tire and the tube maintains the air pres-
sure.
Load limit at maximum cold tire inflation pressure ( →P. 455)
Maximum cold tire inflation pressure (→ P. 567)
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 tires or all season tires (→ P. 455)
An all season tire has “M+S” on the sidewall. A tire not marked “M+S” is a
summer tire.
“TEMPORARY USE ONLY” (→ P. 5 3 7 )
A compact spare tire is identified by the phrase “TEMPORARY USE
ONLY” molded on its sidewall. This tire is designed for temporary emer-
gency use only.

621
Alphabetical index
HS250h_U_75050U
Seat heaters............................................ 389
Seat position memory ............................ 72
Seat ventilator........................................ 389
Seating capacity ....................................257
SeatsAdjustment .....................................68, 72
Adjustment precautions .................................... 71, 74
Child seats/child restraint system installation ............................130
Cleaning ................................................ 420
Driver’s seat position memory .................................................. 72
Head restraint .........................................75
Properly sitting in the seat............... 107
Seat heaters..........................................389
Seat position memory ......................... 72
Ventilated seats ..................................389
Service reminder indicators ............. 173
Shift lever Transmission ..........................................160
Side airbags ..............................................109
Side marker lights Replacing light bulbs .........................481
Switch ..........................................................191
Wattage .................................................568
Side mirrors Adjusting and folding ......................... 87
Mirror position memory .................... 72
Side turn signal lights
Replacing light bulbs ......................... 491
Wattage .................................................568
Smart access system with push-button start
Antenna location ...................................49 Entry functions........................................ 47
Starting the engine ............................. 152
Starting the hybrid system .............. 152
Smart entry & start system
Antenna location ................................... 49
Entry function .......................................... 47
Starting the engine ............................. 152
SOS button ............................................ 408
Spare tire Inflation pressure................................567
Storage location .................................532
Spark plug................................................565
Specifications .........................................560
Speedometer .......................................... 169
Steering wheel Adjustment ...............................................83
Audio switches.................................... 322
Manual adjustment...............................83
Power adjustment.................................83
Steering wheel position
memory .................................................. 72
Stop light
Replacing light bulbs ......................... 491
Wattage................................................. 568
Storage feature...................................... 377
Stuck If the vehicle becomes stuck ....... 556
Sun visors ................................................ 385
Sunshade Rear...........................................................392
Roof.............................................................. 93
Switch
Driving mode selector switch......................................................162
Engine switch ........................................ 152
*: For vehicles with a navigation system, refer to “Navigation System Owner’s Manual”.

622
Alphabetical index
HS250h_U_75050U
Fog light switch................................... 202
Ignition switch........................................152
Light switches ......................................... 191
Mode select switch............................. 162
Power door lock switch ...................... 61
Power switch ......................................... 152
Power window switch ........................ 90
Talk switch................................328, 347
Telephone switch .............................. 347
Tire pressure warning reset switch ................................................... 453
Window lock switch ........................... 90
Wiper and washer switch ............. 204
Tail lights Replacing light bulbs..........................491
Switch ......................................................... 191
Wattage................................................. 568
Talk switch* ................................. 328, 347
Telephone switch*................................ 347
Theft deterrent system Alarm ........................................................ 103
Immobilizer system.............................. 101
Theft prevention labels ........................ 106
TILT switch*
Tire inflation pressure .........................459
Tire information Glossary.................................................578
Size ........................................................... 575
Tire identification number ............. 574
Uniform Tire Quality Grading.... 576
Tires
Chains ..................................................... 259
Checking .................................................451
Compact spare tire .......................... 532
If you have a flat tire .......................... 532 Inflation pressure ............................... 459
Inflation pressure sensor ............... 452
Information ............................................572
Replacing .............................................. 532
Rotating tires.......................................... 451
Size ........................................................... 567
Snow tires.............................................. 258
Spare tire ............................................... 532
Tire pressure warning
system....................................... 451, 505
Tools........................................................... 532
Total load capacity ............................... 257
Towing Dinghy towing .....................................262
Emergency towing ........................... 495
Trailer towing ........................................ 261
TRAC ........................................................ 238
Traction control..................................... 238
Trailer towing ...........................................261
Trip meter ..................................................169
Trunk Opener ......................................................64
Turn signal lights Replacing light bulbs ......................... 481
Switch ........................................................ 166
Wattage .................................................568
Vanity lights Vanity lights.......................................... 386
Wattage .................................................568
Vanity mirrors ........................................ 386
Vehicle identification number ......... 560
Vehicle stability control ..................... 238
Ventilators ...............................................389
VIEW button*
VSC ........................................................... 238
T
V