snow chains TOYOTA MIRAI 2022 User Guide
Page 322 of 556
3225-6. Driving tips
Owners Manual_USA_M62084_en
●Install tire chains on the rear tires. 
Do not install tire chains on the 
front tires.
●Install tire chains on the rear tires 
as tightly as possible. Retighten 
chains after driving 1/41/2 mile 
(0.5 1.0 km).
●Install tire chains following the 
instructions provi ded with the tire 
chains.
To enable the windshield wipers 
to be lifted when heavy snow or 
icy conditions are expected, 
change the rest position of the 
windshield wipers from the 
retracted position below the 
hood to the service position 
using the wiper lever. ( P.201)
NOTICE
■Fitting tire chains
The tire pressure warning valves 
and transmitters may not function 
correctly when tire chains are fit-
ted.
Windshield wipers 
Page 406 of 556
4067-3. Do-it-yourself maintenance
Owners Manual_USA_M62084_en
■Situations in which the tire 
pressure warning system may 
not operate properly
●In the following cases, the tire 
pressure warning system may not 
operate properly.
• If non-genuine Toyota wheels are  used.
• If a tire has been replaced with a  tire that is not an OE (Original 
Equipment) tire.
• If a tire has been replaced with a  tire that is not of the specified size.
• If tire chains, etc. are installed.
• 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 
much higher than the specified 
level.
• If wheels not equipped with tire 
pressure warning valves and 
transmitter are used.
• If the ID code on the tire pressure 
warning valves and transmitters is 
not registered in the tire pressure 
warning computer.
●Performance may be affected in 
the following situations.
• When driving near a TV tower,  electric power plant, gas station, 
radio station, large display, airport 
or other facility  that generates 
strong radio waves or electrical 
noise
• When carrying a portable radio,  cellular phone, cordless phone or 
other wireless communication 
device
If tire position information is not cor-
rectly displayed due to the radio 
wave conditions, the display may be 
corrected by changing the location 
of the vehicle as  the radio wave 
conditions may change.
●When the vehicle is stopped, the 
time taken for the  warning to start 
or turn off may be longer.
●When the inflation pressure of a 
tire drops rapidly, for example  when a tire has burst, the warning 
may not operate.
■Warning performance of the tire 
pressure warning system
The warning of the tire pressure 
warning system w ill change in 
accordance the conditions under 
which it was initia lized. For this rea-
son, the system may give a warning 
even if the tire pressure does not 
reach a low enough level, or if the 
pressure is higher than the pressure 
that was adjusted to when the sys-
tem was initialized.
■Tire pressure warning system 
certification
 P.553
When replacing the tires or 
wheels, the tire pressure warn-
ing valves and transmitters must 
be installed to the wheels which 
will be installed to the vehicle.
When new tire pressure warning 
valves and transmitters are 
installed, new ID codes must be 
registered in the tire pressure 
warning computer and the tire 
pressure warning system must 
be initialized. ( P.409)
■Replacing tires and wheels
If the ID codes of  the tire pressure 
warning valves and transmitters are 
not registered, the tire pressure 
warning system will  not work prop-
erly. In this case,  after driving for 
about 10 minutes, the tire pressure 
warning light will blink for approxi-
mately 1 minute and then illuminate 
to indicate a system malfunction.
Installing tire pressure 
warning valves and trans-
mitters 
Page 538 of 556
538Alphabetical Index
Owners Manual_USA_M62084_en
Parking brake switch ............ 183
Power door lock switch ........ 124
Power switch ........................ 172
Power window switches ....... 156
Rear sunshades switch ........ 370
Rear window and outside rear  view mirror defoggers switch................................... 327, 334
Seat heater switches ............ 342
Seat ventilator switches ....... 342
Snow mode switch ............... 314
“SOS” button .......................... 65
Tilt and telescopic steering con- trol switch ........................... 141
Tire pressure warning reset  switch ................................. 407
Trunk opener main switch .... 129
Trunk opener switch ............. 127
Vehicle-to-vehicle distance  switch ................................. 237
VSC OFF switch................... 316
Window lock switch .............. 158
Windshield defogger switch 326,  334
Windshield wiper and washer  switch ................................. 197
Windshield wiper de-icer switch ................................... 329, 338
T
Tail lights Light switch .......................... 191
Replacing light bulbs ............ 429
Tailpipe ...................................... 82
The Secondary Collision Brake ............................................... 316
Theft deterrent system Alarm ...................................... 70
Immobilizer system ................ 69
Tire inflation pre ssure............ 415
Maintenance data................. 487
Tire inflation pressure display  function ...............................405
Warning light.........................447
Tire information ......................488 Glossary ...............................492
Size ......................................489
Tire identification number .....489
Uniform Tire Quality Grading 490
Tire pressure display .............405
Tire pressure warning system ...............................................405Function................................405
Initializing..............................407
Installing tire p ressure warning 
valves and transmitters ......406
Registering ID codes ............409
Warning light.........................447
Tires .........................................403 Chains ..................................321
Checking ..............................403
Emergency tire puncture repair kit ........................................455
If you have a flat tire .............455
Inflation pressure ..................415
Information ......... ..................488
Replacing ............................. 411
Rotating tires ........................404
Size ......................................487
Snow tires.............................320
Tire inflation pressure display  function ...............................405
Tire pressure w arning system
...........................................405
Warning light.........................447
Tools ........................................456
Top tether strap ........................62
Total load capacit y .................482
To w i n g Dinghy towing .......................171
Emergency towing ................435
Towing eyelet........................437
Trailer towing ...... ..................171
Toyota multi-operation touch 353