483
7
7-3. Do-it-yourself maintenance
Maintenance and care
■The tire pressure warning sys-
tem must be init ialized in the
following circumstances:
When rotating front and rear tires
which have different tire inflation
pressures.
When changing the tire size.
When the tire inflation pressure
is changed such as when chang-
ing traveling speed or load
weight.
When changing between two
registered wheel sets.
When the tire pressure warning
system is initialized , the current tire
inflation pressure is set as the
benchmark pressure.
■How to initialize the tire pres-
sure warning system
1 Park the vehicle in a safe place
and turn the engine switch off.
Initialization cannot be performed while the vehicle is moving.
2 Adjust the tire inflation pressure
to the specified co ld tire inflation
pressure level. ( P.573)
Make sure to adjust the tire pressure to
the specified cold tire inflation pressure level. The tire pre ssure warning system
will operate based on this pressure
level.
3 Turn the engine switch to ON.
4 Press or of the meter
control switch to select .
5 Press or to select “Vehi-
cle Settings” and then press and
hold .
6 Press or to select
“TPWS” and then press .
7 Press or to select “Set
Pressure”. Then press and hold
until the tire pressure warn-
ing light blinks 3 times.
■Initialization procedure
●Make sure to carry out initialization after adjusting the tire inflation pres-
sure.
Also, make sure the tires are cold before carrying out initialization or tire
inflation pressure adjustment.
●If you have accidentally turned the
engine switch off during initialization, it
is not necessary to press the reset switch again as initialization will
restart automatically when the engine
switch is turned to ON 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 conduct initialization
Initializing the tire pressure
warning system (if
equipped)
4847-3. Do-it-yourself maintenance
again.
■When initialization of the tire pres-
sure warning system has failed
Initialization can be completed in a few
minutes. However, in the following
cases, the settings have not been recorded and the system will not oper-
ate properly. If repeated attempts to
record tire inflation pressure settings are unsuccessful, have the vehicle
inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.
●When operating the tire pressure warning reset switch, the tire pressure
warning light does not blink 3 times.
●After driving for a certain period of
time since the initialization has been
completed, the wa rning light comes on after blinking for 1 minute.
The tire pressure warning valve
and transmitter is equipped with a
unique ID code. When replacing a
tire pressure warning valve and
transmitter, it is necessary to regis-
ter the ID code. Have the ID code
registered by any authorized Toyota
retailer or Toyota authorized
repairer, or any reliable repairer.
Your vehicle is equipped with tire
pressure warning system with the
function to have ID codes regis-
tered for a second wheel set, for
example a winter set, by any
authorized Toyota retailer or Toyota
authorized repairer, or any reliable
repairer.
After registration of a second wheel
set, either of these two wheel sets
can be selected for usage with the
tire pressure warning system.
■Operating conditions for the
function
This function will perform the
change of wheel set only if a sec-
ond wheel set has been regis-
tered. If no second wheel set has
been registered, no change will
be made when selecting this
function in the menu.
Only a change between both
registered wheel set is possible,
mixing between these wheel sets
is not supported.
■How to change between wheel
sets
1 Have the vehicle fitted with the
preferred wheel set.
2 Press or of the meter
control switch to select .
WA R N I N G
■When initializing the tire pres-
sure warning system
Do not initialize the tire pressure warning system withou t first adjusting
the tire inflation pressure to the speci-
fied level. Otherwise, the tire pressure warning light may not come on even if
the tire inflation pressure is low, or it
may come on when the tire inflation pressure is actually normal.
Registering ID codes (vehi-
cles with a tire pressure
warning system)
Selecting wheel set (vehi-
cles with a tire pressure
warning system)
5488-2. Steps to take in an emergency
.
When replacing an aluminum wheel
with an aluminum wheel, turn the wheel
nuts until the washers come into
loose contact with the disc wheel .
3 Lower the vehicle.
4 Firmly tighten each wheel nut
two or three times in the order
shown in the illustration.
Tightening torque:
103 N•m (10.5 kgf•m, 76 ft•lbf)
5 Stow the flat tire, tire jack and all
tools.
■The full-size spare tire
●Vehicles with a tire pressure warning system: The full-size spare tire has a
“Temporary use only” label on the
outer surface of the wheel. Use the full-size spare tire temporarily, and
only in an emergency.
●Make sure to check the tire inflation
pressure of the full-size spare tire.
( P.573)
■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.573)
■When the compact spare tire is
equipped
The vehicle becomes lower when driv- ing with the compact spare tire com-
pared to when driving with standard
tires.
■After completing the tire change
(vehicles with a tire pressure warn- ing system)
The tire pressure warning system must
be reset. ( P.483)