3316-3. Do-it-yourself maintenance
RAIZE_OM_General_BZ358E
✽: If equipped
Maintenance and care
6
⬛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.
⦁A tire has been replaced with a tire that is not an OE (Original Equipment) tire.
⦁A tire has been replaced with a tire that is not of the specified size.
⦁ Tire chains, etc., 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 th e vehicle, particularly around the wheels
or wheel housings.
⦁ If the tire inflation pressure is extr emely higher than the specified level.
⦁ If the spare tire is in a location subj ect to poor radio wave signal reception.
⦁ If a large metallic object which can in terfere with signal reception is put
near the spare tire.
⦁ If a wheel, not equipped with a tire pressure warning valve and transmit-
ter, is 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.
⦁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, cellul ar phone, cordless phone or other
wireless communication device
⚫When the vehicle is parked, the time ta ken for the warning to start or go off
could be extended.
⚫When tire inflation pressure declin es rapidly for example when a tire has
burst, the warning may not function.
⬛The initialization operation (vehicles with the tire pressure warning system)
⚫Make sure to carry out init ialization after adjusting th e tire inflation pressure.
Also, make sure the tires are cold befo re carrying out initialization or tire
inflation pressure adjustment.
⚫If you have accidentally turned the engi ne switch to “OFF” during initializa-
tion, it is not necessary to press the reset switch again as initialization will
restart automatically when the engine switch has been turned to “ON” for
the next time.
⚫If you accidentally press the reset switch when initialization is not necessary,
adjust the tire inflation pressure to the specified level when the tires are
cold, and conduct initialization again.
RAIZE_OM_General_BZ358E.book 331 ページ ２０２２年５月１７日 火曜日 午後１時５９分
