4746-3. Do-it-yourself maintenance
CAMRY_U
Your vehicle is equipped with a tire pressure warning system that uses
tire pressure warning valve and t ransmitters to detect low tire inflation
pressure before serious problems arise.
Vehicles without a tire inflat ion pressure display function
If  the  tire  pressure  drops  below  a  predetermined  level,  the  dri ver  is
warned by a warning light. ( P. 532)
Vehicles with a tire inflation pressure display function
● The tire pressure detected by th e tire pressure warning system can
be displayed on the mul ti-information display.
● If the tire pressure drops below a predetermined level, the dri ver is
warned by a screen display and a warning light. ( P.   5 3 2 )
Tire pressure warning system
4.2-inch display7-inch display
4.2-inch display7-inch display 
4816-3. Do-it-yourself maintenance
CAMRY_U
6
Maintenance and care
●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  facilit y  that  generates  strong
radio waves or electrical noise
• When  carrying  a  portable  radio,  cellular  phone,  cordless  phone  or
other wireless communication device
Vehicles  with  a  tire  inflation  pressure  display  function:  If  ti re  position
information is not correctly displayed due to the radio wave co nditions,
the display may be corrected by changing the location of the ve hicle 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  exampl e  when  a
tire has burst, the warning may not operate.
■Initialization procedure
●Make sure  to perform the  initialization procedure after adjusti ng the tire
inflation pressure.
Also,  make  sure  the  tires  are  cold  before  performing  the  initia lization
procedure or adjusting the  tire inflation pressure.
●If the engine switch is turned t o the “LOCK” position (vehicles  without a
smart  key  system)  or  off  (vehicles  with  a  smart  key  system)  dur ing  ini-
tialization,  it  is  not  necessary   to  restart  the  initialization procedure  from
the  beginning  as  it  will  begin  aut omatically  when  the  engine  switch  is
turned  back  to  the  “ON”  position  (vehicles  without  a  smart  key  system)
or IGNITION ON mode (vehicles with a smart key system).
●If  initialization  has  accidentally  been  started  when  it  is  not  necessary,
adjust the tire inflation pressu re to the specified level when  the tires are
cold and then perform the ini tialization procedure again.
●Vehicles with a tire inflation p ressure display function: While  the position
of each tire is being determined  and the inflation pressures are not being
displayed  on  the  multi-information  display,  if  the  inflation  pr essure  of  a
tire drops, the tire pressure warning light will come on.
■Warning performance of the tire pressure warning system
The  warning  of  the  tire  pressu re  warning  system  will  change  in  accor-
dance  with  the  conditions  under  which  it  was  initialized.  For  t his  reason,
the system may give a warning even if the tire pressure does no t reach a
low  enough  level,  or  if  the  pressure  is  higher  than  the  pressur e  that  was
adjusted to when the sys tem was initialized.