2013 Lexus GS300h snow chains

7606-3. Do-it-yourself maintenance
GS450h_300h_OM_OM30D53E_(EE)
Low profile tires (except 225/50R17 tires)
Generally, low profile tires will wear more rapidly and tire grip performance
will be reduced on snowy and/or icy roads when compared to standard tires.
Be sure to use snow tires or tire chains on snowy and/or icy roads and drive
carefully at a speed appropriate for road and weather conditions. (P. 436)
If the tread on snow tires wears down below 4 mm (0.16 in.)
The effectiveness of the tires as snow tires is lost.
Situations in which the tire pressure warning system may not operate properly
(vehicles with the tire pressure warning system)
In the following cases, the tire pressure warning system may not operate
properly.
• If non-genuine Lexus wheels are used.
• A tire has been replaced with a tire that is not an OE (Original Equip-
ment) tire.
• A tire has been replaced with a tire that is not of the specified size.
• Tire chains etc. are equipped.
• Lock nuts are equipped.
• An auxiliary-supported run-flat tire is equipped.
• If a window tint that affects the radio wave signals is installed.
• If there is a lot of snow or ice on the vehicle, particularly around the
wheels or wheel housings.
• If the tire inflation pressure is extremely higher than the specified level.
Performance may be affected in the following situations.
• Near a TV tower, electric power plant, gas station, radio station, large
display, airport or other facility that generates strong radio waves or elec-
trical noise
• When carrying a portable radio, cellular phone, cordless phone or other
wireless communication device
Vehicles with the tire inflation pressure display function: If tire position
information is not correctly displayed due to the radio wave conditions, the
display may be corrected by driving and changing the radio wave condi-
tions.
When the vehicle is parked, the time taken for the warning to start or go off
could be extended.
When tire inflation pressure declines rapidly for example when a tire has
burst, the warning may not function.

8817-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30D53E_(EE)
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. 936)
When using the compact spare tire (vehicles with the tire pressure warning
system)
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 with the compact spare tire com-
pared to when driving with standard tires.
If you have a flat rear tire on a road covered with snow or ice (vehicles with
front and rear tires of the same size and compact spare tire only)
Install the compact spare tire on one of the front wheels of the vehicle. Per-
form 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.
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978Alphabetical index
GS450h_300h_OM_OM30D53E_(EE)
Tachometer ........................109, 124
Tail lights ..................................272
Light switch ..........................272
Replacing light bulbs ............818
Welcome light illumination
control ................................143
Talk switch ........................471, 635
Telephone switches ...................612
Theft deterrent system
Alarm ......................................97
Double locking system ...........96
Immobilizer system ................91
Intrusion sensor and tilt sensor ...
100
Tire inflation pressure ...............772
Maintenance data ..................936
Tire inflation pressure display
function ..............................117
Warning light........................835
Warning message..................860
Tire pressure warning system....756
Function ................................756
Initializing ............................757
Installing tire pressure warning
valves and transmitters .......756
Registering ID codes ............758
Tire pressure warning reset
switch .................................757
Warning light........................835
Warning message..........860, 860Tires .......................................... 754
Chains .................................. 436
Checking .............................. 754
Emergency tire puncture
repair kit ............................ 885
If you have a flat tire.... 871, 885
Inflation pressure ................. 936
Replacing ............................. 871
Rotating tires........................ 755
Size ...................................... 936
Snow tires ............................ 438
Spare tire .............................. 871
Tire inflation pressure display
function ............................. 117
Tire pressure warning system ....
756
Warning light ....................... 835
Warning message................. 860
Tools ................................. 872, 886
Top strap ..................................... 76
Towing...................................... 822
Emergency towing ............... 822
Towing capacity .................. 926
Towing eyelet ...................... 824
Trailer towing .............. 237, 238
Traction battery (hybrid battery) 84
Traction Control (TRC) ............ 397
Traction motor (electric motor) .. 80
Trailer towing ................... 237, 238
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