Page 391 of 521
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 415 of 521
414 5-1. Essential information
Towing with a sling-type truckDo not tow with a sling-type truck
to prevent body damage.
Towing with a wheel-lift type truckFrom the front Release the parking brake.
From the rear Use a towing dolly under the
front wheels.
Page 418 of 521

5
When trouble arises
417
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 may sound.
Parking brake engaged warning buzzer:
P. 433
Warning lightWarning light/Details
(Red) Brake system warning light (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.
■ 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.
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 433 of 521
432 5-2. Steps to take in an emergency
(Flashes)Indicates a malfunction in the cruise control system.
Press the “ON-OFF” button once to deactivate the
system, and then press the button again to reactivate
the system.
A buzzer also sounds.
Indicates a malfunction in the P position control sys-
tem. In this situation, there is a possibility that the parking
lock mechanism will not work.
When parking, park the vehicle on a flat surface and
apply the parking brake securely. Also, it may not be
possible to turn the “POWER” switch off. If this hap-
pens, applying the parking brake will enable the
switch to be turned off.
A buzzer also sounds.
Warning messageDetails
Page 439 of 521
438 5-2. Steps to take in an emergency
Indicates that the park-
ing brake is still
engaged. flashes and a
buzzer sounds to indi-
cate that the parking
brake is still engaged
(with the vehicle having
reached a speed of 3
mph [5 km/h]). Release the parking
brake.
Indicates that the
washer fluid level is low. Add washer fluid.
Due to the amount of
charge remaining in the
traction battery being
high, power regener-
ated through regenera-
tive braking is reduced. Apply the brake pedal
as needed to slow
down.
(Flashes) The driver's door is
opened when the
transmission is out of
P with the EV system
on.
Push the P position
switch.
Warning messageDetailsCorrection procedure
Page 448 of 521
5
When trouble arises
447
5-2. Steps to take in an emergency
If you have a flat tire
A puncture caused by a nail or screw passing through the tire
tread can be repaired temporarily using the emergency tire punc-
ture repair kit. (The kit contains a bottle of sealant. The sealant
can be used only once to temporarily repair one tire without
removing the nail or screw from the tire.) Depending on the dam-
age, this kit cannot be used to repair the tire. (P. 450)
After temporarily repairing the tire with the kit, have the tire
repaired or replaced by your Toyota dealer. Repairs conducted
using the emergency tire puncture repair kit are only a temporary
measure. Have the tire repaired and replaced as soon as possi-
ble.
■ Before repairing the tire
●Stop the vehicle in a safe pl ace on a hard, flat surface.
● Set the parking brake.
● Push the P position switch.
● Stop the EV system.
● Turn on the emergency flashers.
Page 467 of 521
466 5-2. Steps to take in an emergency
Emergency start functionWhen the EV system does not start, the following steps can be used
as an interim measure to start the EV system if the “POWER” switch
is functioning normally. Set the parking brake.
Set the “POWER” switch to the ACCESSORY mode.
Push and hold the “POWER” switch for about 15 seconds
while depressing the brake pedal firmly.
Even if the EV system can be st arted using the above steps, the sys-
tem may be malfunctioning. Have th e vehicle checked 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. 470)
Contact your Toyota dealer if the problem cannot be repaired, or if
repair procedures are unknown.
STEP 1
STEP 2
STEP 3
Page 470 of 521
5
When trouble arises
469
5-2. Steps to take in an emergency
To change “POWER” switch modes:
Within 10 seconds of the buzze
r sounding, release the brake
pedal and press the “POWER” switch. Modes can be changed
each time the switch is pressed. ( P. 202)
To start the EV system:
Press the “POWER” switch within 10 seconds of the buzzer
sounding, keeping the brake pedal depressed.
In the event that the EV system still cannot be operated, contact your
Toyota dealer.
■ Stopping the EV system
Set the parking brake, push the P position switch and press the “POWER”
switch as you normally do when stopping the EV system.
■ Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the
electronic key battery be replaced immediately when the battery is depleted.
(P. 383)
STEP 3