Page 389 of 536

389
4-3. Do-it-yourself maintenance
4
Maintenance and care
*1: Vehicles with halogen headlight
*2: Vehicles with discharge headlight
31 H-LP RH-LO
15 A
*1
Right-hand headlight (low beam)
20 A*2
32 MNL H-LP
LV L*27.5 A Manual headlight leveling system
33 EFI-MAIN NO.1 30 A Multiport fuel injection system/
sequential multiport fuel injection
system, EFI NO.2, EFI NO.3
34 SMART 5 A Smart key system
35 ETCS 10 A Electronic throttle control system
36 ABS NO.2 7.5 A Electronically controlled brake sys-
tem
37 EFI NO.1 7.5 A Multiport fuel injection system/
sequential multiport fuel injection
system
38 EFI-MAIN NO.2 20 A A/F sensor
39 AM2 7.5 A Hybrid system
40 RADIO-B 20 A Audio system, navigation system
41 DOME 7.5 A Clock, vanity lights, interior lights,
personal lights, trunk light, door
courtesy lights
42 ECU-B NO.1 10 A Smart key system, gauge and
meters, Blind Spot Monitor, steer-
ing sensor, occupant classification
system, multiplex communication
system
43 SPARE 25 A Spare fuse
44 SPARE 30 A Spare fuse
FuseAmpereCircuit
Page 391 of 536
391
4-3. Do-it-yourself maintenance
4
Maintenance and care
■
Under the instrument panel
FuseAmpereCircuit
1 ECU-IG1 NO.2 10 A Shift lock control system, seat
heaters, smart key system, tire
pressure warning system, multiplex
communication system, audio sys-
tem, navigation system, moon roof,
auto anti-glare inside rear view mir-
ror, air conditioning system
2 ECU-IG1 NO.1 10 A Electronically controlled brake sys-
tem, electric cooling fans, stop
lights, steering sensor, Vehicle
Proximity Notification System, rear
window defogger, outside rear view
mirror defogger, back-up lights,
audio system, navigation system
3 PANEL 10 A Switch illumination, air condition-
ing system, shift lever light, glove
box light, audio system, navigation
system, personal lights, interior
lights
4 TAIL 15 A Parking lights, side marker lights,
tail lights, license plate lights, fog
lights
Page 392 of 536
392 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 413 of 536

5
When trouble arises
413
5-2. Steps to take in an emergency
If a war ning light turns 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. 426
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.
Page 415 of 536
5
When trouble arises
415
5-2. Steps to take in an emergency
(U.S.A.)
(Canada) ABS warning light
Indicates a malfunction in:
• The ABS; or
• The brake assist system.
Brake system warning light in yellow
Indicates a malfunction in:
• The regenerative brake system; or
• The electronically controlled brake system.
(Comes on) Slip indicator light
Indicates a malfunction in:
• VSC system; or
• TRAC system; or
• Hill-start assist control.
Electric power steering system warning light (warning
buzzer)
Indicates a malfunction in the EPS system.
■ Brake system warning light operation
Although depressing the brake pedal repeatedly may cause the red brake
system warning light to turn on and the buzzer to sound, this does not indi-
cate a malfunction.
Warning lightWarning light/Details
Page 420 of 536

420 5-2. Steps to take in an emergency
■If the tire pressure warning light frequently comes on after blinking
for 1 minute (vehicles with a tire pressure warning system)
If the tire pressure warning light frequently comes on after blinking for 1
minute when the “POWER” switch is turned to ON mode, have it
checked by your Toyota dealer.
■ Electric power steering system warning light (warning buzzer)
When the 12-volt battery charge becomes insufficient or the voltage tempo-
rarily drops, the electric power st eering system warning light may come on
and the warning buzzer may sound.
■ Customization that can be co nfigured at Toyota dealer
The vehicle speed linked seat belt reminder buzzer can be disabled.
(Customizable features P. 498) However, Toyota recommends that the
seat belt reminder buzzer be operational to alert the driver and front passen-
ger when seat belts are not fastened.
CAUTION
■ When the electric power steerin g system warning light comes on
The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than usual when operating, hold
firmly and operate using more force than usual.
■
If the tire pressure warning light comes on (vehicles with a tire
pressure warning system)
Be sure to observe the following precautions. Failure to do so could
cause a loss of vehicle control and result in death or serious injury.
●Stop your vehicle in a safe place as soon as possible. Adjust the tire
inflation pressure immediately.
●If the tire pressure warning light comes on even after tire inflation pres-
sure adjustment, it is pr obable that you have a flat tire. Check the tires.
If a tire is flat, change it with th e spare tire and have the flat tire
repaired by the nearest Toyota dealer.
●Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate,
you could lose control of the steering wheel or the brakes.
Page 455 of 536
5
When trouble arises
455
5-2. Steps to take in an emergency
Emergency start function
When the hybrid system does not start, the following steps can be
used as an interim measure to st art the hybrid system if the
“POWER” switch is functioning normally:
Set the parking brake.
Shift the shift lever to P.
Turn the “POWER” switch to ACCESSORY mode.
Press and hold the “POWER” switch for about 15 seconds
while depressing the brake pedal firmly.
Even if the hybrid system can be started using the above steps, the
system may be malfunctioning. Have the vehicle inspected by your
Toyota dealer.
■ The interior lights and headlights do not turn on, or the horn
does not sound.
One of the following may be the cause of the problem:
●One or both of the 12-volt ba ttery terminals may be discon-
nected.
● The 12-volt battery may be discharged. ( P. 461)
Contact your Toyota dealer if the problem cannot be repaired, or if
repair procedures are unknown.
STEP1
STEP2
STEP3
STEP4
Page 520 of 536
520
Abbreviation list
Abbreviation/Acronym list
ABBREVIATIONSMEANING
A/C Air Conditioning
ABS Anti-lock Brake System
ACC Accessory
ALR Automatic Locking Retractor
BSM Blind Spot Monitor CRS Child Restraint System
DISP Display ECU Electronic Control Unit
EDR Event Data RecorderELR Emergency Locking Retractor
EPS Electric Power Steering
GAWR Gross Axle Weight Ratings
GVWR Gross Vehicle Weight Rating
I/M Emission inspection and maintenance
LATCH Lower Anchors and Tethers for Children LED Light Emitting Diode
M + S Mud and Snow MMT Methylcyclopentadienyl Manganese Tricarbonyl
MTBE Methyl Tertiary Butyl Ether
OBD On Board DiagnosticsSRS Supplemental Restraint System TIN Tire Identification Number
TPMS Tire Pressure Warning System TRAC Traction Control VIN Vehicle Identification Number
VSC Vehicle Stability Control