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384 4-3. Do-it-yourself maintenance
Installing tire pressure warning valves and transmittersWhen replacing tires or wheels,  tire pressure warning valves and
transmitters must also be installed.
When new tire pressure warning valves and transmitters are
installed, new tire pressure warn ing valve and transmitter ID codes
must be registered in the tire pressure warning computer and the tire
pressure warning system must be  initialized. Have tire pressure
warning valve and transmitter ID codes registered by your Toyota
dealer. ( P. 385)
Initializing the tire pressure warning system
■ The tire pressure warning system must be initialized when
inflation the tire pressure is  changed (such as when changing
traveling speed or load weight.)
When the tire pressure warning syst em is initialized, the current tire
inflation pressure is set as the pressure benchmark.
■ How to initialize the tire pressure warning system
Park the vehicle in a safe place and turn the “ENGINE START
STOP” switch or the engine switch OFF.
While the vehicle is moving, in itialization is not performed.
Adjust the tire inflation pressure  to the specified cold tire infla-
tion pressure level. ( P. 491)
Make sure to adjust the tire pressure to the specified cold tire
inflation pressure level. The ti re pressure warning system will
operate based on this pressure level.
Turn the “ENGINE START STOP” switch to IGNITION ON
mode (vehicles with smart key sy stem) or engine switch to the
“ON” position (vehicles without smart key system). 
STEP1
STEP2
STEP3 
         
        
        
     
        
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385
4-3. Do-it-yourself maintenance
4
Maintenance and care
Push and hold the tire pressure
warning reset switch until the tire
pressure warning light blinks
slowly 3 times.
Vehicles with smart key system: Wait for a few minutes with
the IGNITION ON mode, and then turn the “ENGINE START
STOP” switch OFF. 
Vehicles without smart key system: Wait for a few minutes
with the engine switch “ON”, a nd then turn the engine switch
to the “LOCK” position. 
Registering ID codes
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 regi ster the ID code of tire pressure
warning valve and transmitter. Have the ID code registered by your
Toyota dealer.
STEP4
STEP5 
         
        
        
     
        
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398
4-3. Do-it-yourself maintenance
Air conditioning filter
The air conditioning filter must be cleaned or changed regularly to
maintain air conditioning efficiency.
■ Removal method
Vehicles with smart key system: Turn the “ENGINE START
STOP” switch OFF.
Vehicles without smart key system: Turn the engine switch
OFF.
Open the glove box. Slide off
the damper.
Apply pressure to the glove
box as shown to disconnect
the claws.
Remove the filter cover.
STEP1
STEP2
STEP3
STEP4 
         
        
        
     
        
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401
4-3. Do-it-yourself maintenance
4
Maintenance and care
Key batter y
Replace the battery with a new one if it is discharged.
■You will need the following items:
●Flathead screwdriver (To prevent damage to the key, cover
the tip of the screwdriver with rag.)
● Small Phillips-hea d screwdriver
● Lithium battery CR1632 (vehicles  with smart key system), or
CR2016 (vehicles withou t smart key system)
■ Replacing the battery
Vehicles with smart key system
Take out the mechanical key.
Remove the cover.
STEP1
STEP2 
         
        
        
     
        
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402 4-3. Do-it-yourself maintenance
Remove the depleted battery.
Insert a new battery with the
“+” terminal facing up.
Vehicles without smart key systemRemove the cover.
Remove the module.
STEP3
STEP1
STEP2 
         
        
        
     
        
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403
4-3. Do-it-yourself maintenance
4
Maintenance and care
■
If the key battery is discharged
The following symptoms may occur.
●The smart key system and wireless remote control will not function prop-
erly.
● The operational range is reduced.
■ Use a CR1632 (vehicles with smar t key system), or CR2016 (vehicles
without smart key system ) lithium battery
● Batteries can be purchased at your Toyota dealer, jewelers, or camera
stores.
● Replace only with the same or equivalent type recommended by your
Toyota dealer.
● Dispose of used batteries according to the local laws.
CAUTION
■Removed battery and other parts
Keep away from children. 
These parts are small and if swallowed by a child they can cause choking.
Open the case cover using a
coin protected with tape etc.
and remove the depleted bat-
tery.
Insert a new battery with the
“+” terminal facing up.
STEP3 
         
        
        
     
        
        Page 407 of 538
405
4-3. Do-it-yourself maintenance
4
Maintenance and care
Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have
blown. If this happens, check and replace the fuses as necessary.
Vehicles with smart key system: Turn the “ENGINE START
STOP” switch OFF.
Vehicles without smart key system: Turn the engine switch
OFF.
Open the fuse box cover.
Engine compartment
Push the tab in and lift the lid
off.
Under the driver’s side instrument panel Remove the lid.
After a system failure, see “Fuse layout and amperage rat-
ings” ( P. 407) for details about which fuse to check.STEP1
STEP2
STEP3 
         
        
        
     
        
        Page 412 of 538

410 4-3. Do-it-yourself maintenance
25 EFI MAIN 30 AMultiport fuel injection system/
sequential multiport fuel injection 
system, EFI NO.2, EFI NO.3, main 
body ECU
26 AMP 25 A Audio system
27 DOOR NO.1 25 A Main body ECU
28 RADIO NO.1 15 A Audio system, navigation system
29 ECU-B NO.1 10 A Wireless remote control system, 
front passenger occupant classifi-
cation system, main body ECU
30 DOME 10 AGauges and meters, trunk light, 
engine switch light, door courtesy 
lights, interior light, personal lights, 
clock, smart key system
31 H-LP(LH) 15 A Left-hand headlight (high beam)
32 H-LP(RH) 15 A Right-hand headlight (high beam)
33 H-LP(LL) 15 A Left-hand headlight (low beam)
34 H-LP(RL) 15 A Right-hand headlight (low beam)
35 HORN 10 A Horns
36 EFI NO.1 10 ASmart key system, multiport fuel 
injection system/sequential multi-
port fuel injection system, main 
body ECU
37 MPX-B 10 A Gauges and meters 
38 A/F 20 A No circuit
39 S-HORN 7.5 A Horns
40 EFI NO.2 15 AMultiport fuel injection system/
sequential multiport fuel injection 
system
41 EFI NO.3 10 AMultiport fuel injection system/
sequential multiport fuel injection 
system
FuseAmpereCircuit