Page 383 of 520
383
4-3. Do-it-yourself maintenance
4
Maintenance and care
Electronic key batter y
Replace the battery with a new one if it is depleted.
■You will need the following items:
●Flathead screwdriver
● Small flathead screwdriver
● Lithium battery CR1632
■ Replacing the battery
Take out the mechanical key.
Remove the cover.
To prevent damage to the key,
cover the tip of the screwdriver
with a rag.
Remove the depleted battery.
Insert a new battery with the
“+” terminal facing up.
STEP 1
STEP 2
STEP 3
Page 384 of 520

384 4-3. Do-it-yourself maintenance
■Use a CR1632 lithium battery
●Batteries can be purchased at your Toyota dealer, local electrical appli-
ance shops or camera stores.
● Replace only with the same or equivalent type recommended by the
manufacturer.
● Dispose of used batteries according to local laws.
■ If the electronic key battery is depleted
The following symptoms may occur.
●The smart key system and wireless remote control will not function prop-
erly.
● The operational range will be reduced.
CAUTION
■Removed electronic key battery and other parts
These parts are small and if swallowed by a child, they can cause choking.
Keep away from children. Failure to do so could result in death or serious
injury.
NOTICE
■For normal operation after re placing the electronic key battery
Observe the following precautions to prevent accidents.
● Always work with dry hands.
Moisture may cause the battery to rust.
● Do not touch or move any other component inside the remote control.
● Do not bend either of the battery terminals.
Page 390 of 520
390 4-3. Do-it-yourself maintenance
12 ABS 130 A Anti-lock brake system
13 ECB 1 50 AElectronically controlled brake sys-
tem
14 ECB 2 50 AElectronically controlled brake sys-
tem
15 W/P-IGCT 50 A P/T W/P, BATT W/P 1, BATT W/P 2
16 EPS 60 A Electric power steering
17 P/I 60 AIGCT-D, HORN, parking control
system, IG2
18 MAIN 60 AH-LP MAIN, DRL, ODS, smart key
system, ABS 2, steering lock sys-
tem, PM-B, ECU-B MAIN
19 CONTACTOR 15 A Traction battery, charging system
20 IG2 15 A Starting system
21
HORN 10 A Horn
22 IGCT-D 7.5 A Thermal control system, power
management ECU, parking control
system, multiplex communication
system
23 PM-IGCT 7.5 A Power management system
24 P CNT-IGCT 7.5 A Parking control system
25 A/C-IGCT 10 A Air conditioning system
26 FAN-IGCT 7.5 A Electric cooling fans
FuseAmpereCircuit
Page 391 of 520
391
4-3. Do-it-yourself maintenance
4
Maintenance and care
Type B (passenger’s side)
FuseAmpereCircuit
1 THRML CTRL 10 A Thermal control system
2 G/W-IGCT 10 A Multiplex communication system
3 DRL 7.5 A Daytime running light system
4 ECU-B 2 7.5 A Air conditioning system
5 A/C-B 7.5 A Gauges and meters, steering sen-
sor
6 H-LP LH-LO 10 A Left-hand headlight (low beam)
7 H-LP RH-LO 10 A Right-hand headlight (low beam)
8 H-LP LH-HI 10 A Left-hand headlight (high beam)
9 H-LP RH-HI 10 A Right-hand headlight (high beam)
10 DOME 7.5 A Foot lights, vanity lights, interior
lights, personal lights, luggage
compartment light
11 ECU-B 1 7.5 A Anti-glare inside rear view mirror,
smart key system
12 DCM-B 7.5 A DCM-B
13 P CNT MTR 30 A Parking control system
Page 392 of 520
392 4-3. Do-it-yourself maintenance
14 SMART7.5 A Smart key system
15 STRG LOCK 20 A Steering lock system
16 AM2 7.5 A Starting system
17 ABS 2 7.5 A Anti-lock brake system
18 PTC HTR 2 50 A Air conditioning system
19 PTC HTR 1 50 A Air conditioning system
20 PTC HTR 3 50 A Air conditioning system
21 CHARGER 5 A Charging system
22 IGCT 2 20 A THRML CTRL, G/W-IGCT
23 HV BATT 10 A Traction battery
24 PM-B 7.5 A Power management system
25 ODS 7.5 A Occupant classification system
26 HTR 50 A Air conditioning system
27 FAN 1 50 A Electric cooling fans
28 FAN 2 50 A Electric cooling fans
29 H-LP MAIN 40 A H-LP LH-LO, H-LP RH-LO, H-LP
LH-HI, H-LP RH-HI, manual head-
light leveling system, daytime run-
ning light system
30 ECU-B MAIN 30 A ECU-B 2, A/C-B
31 SPARE 5 A Spare fuse
32 SPARE 10 A Spare fuse
33 SPARE 20 A Spare fuse
FuseAmpereCircuit
Page 394 of 520
394 4-3. Do-it-yourself maintenance
■Under the instrument panel
Front side of the fuse block
FuseAmpereCircuit
1 DCM-IG2 5 A DCM-IG2
2 PM-IG2 5 A Power management system
3 IG2 2 5 A Steering lock system, smart key
system
4 IG2 1 5 A Electronically controlled brake sys-
tem, stop/tail lights, high mounted
stoplight
5 SSR-IG1 5 A Vehicle stability control system,
steering sensor
6 EPS-IG1 5 A Electric power steering
7 P/W-MAIN 30 A Power windows
8 DEF 30 A Rear window defogger
Page 395 of 520
395
4-3. Do-it-yourself maintenance
4
Maintenance and care
Fuse block (under side view)
FuseAmpereCircuit
1 TAIL 10 A Tail lights, license plate light, side
marker lights, daytime running light
system
2 PANEL 7.5 A Switch illuminations
3 BKUP LP 10 A Back-up lights
4 P/W-FL 20 A Power windows
5 P/W-RL 20 A Power windows
6 P/W-RR 20 A Power windows
7 P/OUT 15 A Power outlet
8 ACC-B 7.5 A Audio system, power rear view mir-
ror control, air conditioning sys-
tem, smart key system, main body
ECU
9 MIR HTR 10 A Outside rear view mirror defoggers
10 P/OUT-MAIN 15 A Power outlets 11 A/B-IG2 7.5 A SRS airbag system
12 GAUGE 7.5 A Gauges and meters
13 ECU-IG1 3 10 A EPS-IG1, SSR-IG1
14 S/HTR 15 A Seat heaters
15 WIPER 25 A Windshield wipers
16 WIPER RR 15 A Rear window wiper
Page 411 of 520
When trouble arises5
411
5-1. Essential informationEmergency flashers ......... 412
If your vehicle needs to be towed ........................ 413
If you think something is wrong ......................... 416
5-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer
sounds... ....................... 417
If a warning message is displayed........................ 427
If you have a flat tire......... 447
If the EV (Electric Vehicle) system will not start ....... 465
If you lose your keys ........ 467
If the electronic key does not operate
properly .......................... 468
If the vehicle 12-volt battery is discharged ...... 470
If your vehicle overheats ....................... 475
If the vehicle becomes stuck .............................. 477
If your vehicle has to be stopped in an
emergency ..................... 479