snow chains TOYOTA PRIUS 2022 User Guide

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PRIUS_OM_OM47F01U_(U)
6-3. Do-it-yourself maintenance
■Situations in which the tire pressure warning system may not oper-
ate properly
●In the following cases, the tire pressure warning system may no t operate
properly.
• If non-genuine Toyota wheels are used.
• When a replacement tire is used, the system may not operate cor-
rectly due to the structure of the replacement tire.
• A tire has been replac ed with a tire that is not of the specif ied size.
• Tire chains etc . are equipped.
• An auxiliary-supported ru n-flat tire is equipped.
• If a window tint that affects the radio wave signals is instal led.
• 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 sp ecified
level.
• If wheel without the tire pressure warning valve and transmitt er is
used.
• If the ID code on the tire pressure warning valves and transmi tters is
not registered in the tire pressure warning computer.
●Performance may be affected in the following situations.
• Near a TV tower, electric power plant, gas station, radio stat ion, large
display, airport or other facilit y that generates strong radio waves or
electrical noise
• When carrying a portable radio, cellular phone, cordless phone or
other wireless communication device
●When the vehicle is parked, the time taken for the warning to s tart or go
off could be extended.
●When tire inflation pressure declines rapidly for example when a tire has
burst, the warning may not function.
■The initialization operation
●Make sure to carry out initializ ation after adjusting the tire inflation pres-
sure.
Also, make sure the tires are co ld before carrying out initialization or tire
inflation pressure adjustment.
●If you have accidentally turned the power switch off during ini tialization,
it is not necessary to press the reset swit ch again as initialization will
restart automatically when the power switch has been turned to ON
mode for the next time.
●If you accidentally press the reset switch when initialization is not neces-
sary, adjust the tire inflation pressure to the specified level when the
tires are cold, and cond uct initialization again.

6387-2. Steps to take in an emergency
PRIUS_OM_OM47F01U_(U)
■The compact spare tire (if equipped)
●The compact spare tire is identified by the label “TEMPORARY USE
ONLY” on the tire sidewall.
Use the compact spar e tire temporarily, and only in an emergenc y.
●Make sure to check the tire inflation pressure of the compact s pare tire.
(  P. 6 6 8 )
■When using the compact spare tire (if equipped)
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 rep lace the
compact spare tire after the tire pressure warning light comes on, the light
remains on.
■When the compact spare tire is equipped (if equipped)
The vehicle height may become lower when driving with the compa ct
spare tire compared to when d riving with standard tires.
■If you have a flat front tire on a road covered with snow or ic e (vehi-
cles with compact spare tire)
Install the compact spare tire on one of the rear wheels of the vehicle.
Perform the following steps and f it 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.
■Jack point
■Storing the jack The mark indicating the jack point is
stamped on the underside of the vehi-
cle.
Place the jack in the same direction as
the mark next to the storage space.
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733Alphabetical index
PRIUS_OM_OM47F01U_(U)
P position switch ................... 250
Power door lock switches ..... 183
Power switch......................... 239
Power window switch............ 212
Rear window wiper and washer switch ..................... 275
Rear window and outside rear view mirror
defoggers switch ........ 434, 444
S-APGS switch ..................... 384
Seat heater switches ............ 451
“SOS” button ........................... 76
Talk switch
*
Telephone switches*
TRIP switch........................... 119
Vehicle-to-vehicle distance switch ................................. 329
VSC OFF switch ................... 417
Window lock switch............... 212
Windshield wipers and washer switch ..................... 269
Wireless charger power supply switch ...................... 471
Tail lights .................................. 257 Light switch ........................... 257
Replacing light bulbs............. 572
Talk switch
*
Telephone switch*
Theft deterrent system Immobilizer system ................. 96 Tire inflation pressure............. 537
Maintenance data ................. 668
Warning light......................... 591
Tire information ....................... 674 Glossary ............................... 680
Size....................................... 676
Tire Identification Number .... 676
Uniform Tire Quality
Grading .............................. 678
Tire pressure warning system.................................... 530
Function ................................ 530
Initializing .............................. 530
Installing tire pressure warning valves and
transmitters ........................ 530
Registering ID codes ............ 531
Warning light......................... 591
Tires .......................................... 528 Chains .................................. 426
Checking............................... 528
Emergency tire puncture repair kit ............................. 607
Glossary ............................... 680
If you have a flat tire ..... 607, 627
Inflation pressure .................. 537
Information............................ 674
Replacing.............................. 627
Rotating tires ........................ 529
Size....................................... 668
Snow tires ............................. 425
Spare tire ...................... 627, 668
Tire Identification Number .... 676
Tire pressure warning system .......... ...................... 530
Uniform Tire Quality
Grading .............................. 678
Warning light......................... 591
T
*: Refer to “NAVIGATION SYSTEM OWNER’S MANUAL” or “MULTIMEDIA OWNER’S MANUAL”.