Page 468 of 612
468 4-3. Do-it-yourself maintenance
5 EPS-IG17.5 A Electric power steering
6 ECU-IG1 NO.3 7.5 A Blind Spot Monitor
7 S/HTR&FAN
F/L 10 A Seat heaters
8 H-LP LVL 7.5 A No circuit
9 WASHER 10 A Windshield wipers and washer
10 A/C-IG1 7.5 AAir conditioning system, PTC
heater
11 WIPER 25 A Windshield wipers and washer
12 BKUP LP 7.5 A No circuit
13 DOOR NO.1 30 A Power windows
14 WIPER-S 5 A No circuit
15 P/OUTLET RR 20 A Power outlet
16 SFT LOCK-
ACC 5 A No circuit
17 DOOR R/R 20 A Rear right-hand power windows
18 DOOR R/L 20 A Rear left-hand power windows
19 OBD 10 A On-board diagnosis system
20 ECU-B NO.2 10 A Smart key system, tire pressure
warning system
21 DOOR NO.2 20 A Power windows
22 AM1 7.5 A No circuit
23 STOP 7.5 ATail lights, electronically controlled
brake system, high mounted stop-
light, shift lock control system,
hybrid system, Vehicle Proximity
Notification System
24 P/SEAT RR 30 A No circuit
25 A/C-B 7.5 A Air conditioning system
FuseAmpereCircuit
Page 469 of 612
469
4-3. Do-it-yourself maintenance
4
Maintenance and care
26 S/ROOF
10 A Moon roof
27 P/SEAT FR 30 A Power seats
28 PSB 30 A No circuit
29 D/L-AM1 20 AMultiplex communication system,
power door lock, trunk opener
switch
30 TI&TE 20 A No circuit
31 A/B 10 AOccupant classification system,
SRS airbag system
32 ECU-IG2 NO.1 7.5 A Hybrid system
33 ECU-IG2 NO.2 7.5 A Electronically controlled brake sys-
tem, smart key system
34 CIG&P/
OUTLET 15 A Power outlet
35 ECU-ACC 7.5 A Clock, outside rear view mirrors,
multiplex communication system,
audio system, navigation system
36 S/HTR&FAN F/
R 10 A Seat heaters
37 S/HTR RR 20 A No circuit
FuseAmpereCircuit
Page 470 of 612

470 4-3. Do-it-yourself maintenance
■After a fuse is replaced
●If the lights do not turn on even after the fuse has been replaced, a bulb
may need replacement. ( P. 471)
● If the replaced fuse blows again, have the vehicle inspected by your
Toyota dealer.
■ If there is an overload in a circuit
The fuses are designed to blow, protecting the wiring harness from damage.
■ When replacing light bulbs
Toyota recommends that you use genuine Toyota products designed for this
vehicle. Because certain bulbs are connected to circuits designed to prevent
overload, non-genuine parts or parts not designed for this vehicle may be
unusable.
CAUTION
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failure to do so may cause damage to the vehicle, and possibly a fire or
injury.
●Never use a fuse of a higher amperage rating than that indicated, or use
any other object in place of a fuse.
● Always use a genuine Toyota fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.
● Do not modify the fuses or fuse boxes.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by your
Toyota dealer as soon as possible.
Page 483 of 612
When trouble arises5
483
5-1. Essential informationEmergency flashers ......... 484
If your vehicle needs to be towed .................... 485
If you think something is wrong ......................... 489
5-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer
sounds... ....................... 490
If a warning message is displayed .................... 500
If you have a flat tire......... 519
If the hybrid system will not start .................... 531
If the shift lever cannot be shifted from P............ 533
If you lose your keys ........ 534
If the electronic key does not operate properly....... 535
If the vehicle’s 12-volt battery is discharged ...... 538
If your vehicle overheats ....................... 542
If the vehicle becomes stuck .............................. 547
If your vehicle has to be stopped in an
emergency ..................... 548
Page 484 of 612
484
5-1. Essential information
Emergency flashers
NOTICE
■To prevent 12-volt battery discharge
Do not leave the emergency flashers on longer than necessary when the
hybrid system is not operating.
Use the emergency flashers if th e vehicle malfunctions or is
involved in an accident.
Press the switch to flash all
the turn signal lights. To turn
them off, press the switch
once again.
Page 485 of 612
5
When trouble arises
485
5-1. Essential information
If your vehicle needs to be towed
Situations needs to contact dealers before towingThe following may indicate a problem with your hybrid transmission.
Contact your Toyota dealer before towing.
● A warning message for the hybrid system is shown on the multi-
information display and the vehicle does not move.
● The vehicle makes an abnormal sound.
Towing with a sling-type truck
Do not tow with a sling-type truck
to prevent body damage.
If towing is necessary, we recommend having your vehicle towed by
your Toyota dealer or a commerci al towing service, using a lift-type
truck or flatbed truck.
Use a safety chain system for all to wing, and abide by all state/pro-
vincial and local laws.
If towing your vehicle with a wheel- lift type truck from the front, the
vehicle's rear wheels and axles must be in good conditions.
( P. 486, 487)
If they are damaged, use a towing dolly or flatbed truck.
Page 489 of 612
5
When trouble arises
489
5-1. Essential information
If you think something is wrong
If you notice any of the following symptoms, your vehicle probably
needs adjustment or repair. Contact your Toyota dealer as soon as
possible.
■ Visible symptoms
●Fluid leaks under the vehicle
(Water dripping from the air cond itioning after use is normal.)
● Flat-looking tires or uneven tire wear
● The rightmost segment of the engine coolant temperature dis-
play flashes
■ Audible symptoms
●Changes in exhaust sound
● Excessive tire squeal when cornering
● Strange noises related to the suspension system
● Pinging or other noises related to the hybrid system
■ Operational symptoms
●Engine missing, stumbling or running roughly
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking
● Vehicle pulls heavily to one side when driving on a level road
● Loss of brake effectiveness, s pongy feeling, pedal almost
touches the floor
Page 490 of 612

490
5-2. Steps to take in an emergency
If a war ning light tur ns on or a war ning buzzer sounds...
Stop the vehicle immediately. Continuing to drive the vehicle may be dangerous.
The following warning indicates a possible problem in the brake sys-
tem. Immediately stop the vehicle in a safe place and contact your
Toyota dealer.
*: Brake system warning buzzer:
When there is a possible problem that could affect braking performance, the
warning light will come on and a warning buzzer will sound.
Parking brake engaged warning buzzer:
P. 503
Warning lightWarning light/Details
(U.S.A.)
(Canada) Brake system warning light
in red (warning buzzer)*
• Low brake fluid
• Malfunction in the brake system This light also comes on when the parking brake is not
released. If the light turns off after the parking brake is fully
released the system is operating normally.
Calmly perform the following actio ns if any of the warning lights
comes on or flashes. If a light comes on or flashes, but then goes
off, this does not necessarily indicate a malfunction in the system.
However, if this continues to o ccur, have the vehicle inspected by
your Toyota dealer.