Page 404 of 512
4046-3. Do-it-yourself maintenance
AVALON_HV_U (OM41451U)
CAUTION
■Discharge headlights (if equipped)
●Contact your Toyota dealer before replacing the discharge headlights
(including light bulbs).
● Do not touch the discharge headlight’s high voltage socket when the head-
lights are turned on.
An extremely high voltage of 30000 V will be discharged and could result
in death or serious injury by electric shock.
● Do not attempt to take apart or repair the headlight bulbs, connectors,
power supply circuits, or related components.
Doing so could result in electric shock and death or serious injury.
■ To prevent damage or fire
●Make sure bulbs are fully seated and locked.
● Check the wattage of the bulb before installing to prevent heat damage.
Page 405 of 512
405
7When trouble arises
AVALON_HV_U (OM41451U)7-1. Essential information
Emergency flashers .......... 406
If your vehicle has to be stopped in an
emergency ...................... 407 7-2. Steps to take in an
emergency
If your vehicle needs to be towed ......................... 408
If you think something is wrong .............................. 411
If a warning light turns on or a warning buzzer
sounds ............................ 412
If a warning message is displayed ......................... 422
If you have a flat tire.......... 423
If the hybrid system will not start ........................... 435
If the shift lever cannot be shifted from P ............. 437
If the electronic key does not operate properly........ 438
If the 12-volt battery is discharged ...................... 440
If your vehicle overheats ........................ 444
If the vehicle becomes stuck ............................... 448
Page 406 of 512
406
AVALON_HV_U (OM41451U)
7-1. Essential information
Press the switch.
All the turn signal lights will flash.
To turn them off, press the switch
once again.
■Emergency flashers
If the emergency flashers are used for a long time while the hybrid system is
not operating (while the “READY” indicator is not illuminated), the 12-volt \
bat-
tery may discharge.
Emergency flashers
The emergency flashers are used to warn other drivers when the
vehicle has to be stopped in th e road due to a breakdown, etc.
Page 412 of 512

4127-2. Steps to take in an emergency
AVALON_HV_U (OM41451U)
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:
Parking brake engaged warning buzzer: The buzzer sounds to indicate
that the parking brake is still engaged (with the vehicle having reached a
speed of 3 mph [5 km/h]).
If a warning light turns on or a warning
buzzer sounds
Calmly perform the following acti ons 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 occur, have the vehicle
inspected by your Toyota dealer.
Stop the vehicle immediately. Continuing to drive the vehicle
may be dangerous.
Warning lightWarning light/Details
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.
Page 413 of 512

4137-2. Steps to take in an emergency
7
When trouble arises
AVALON_HV_U (OM41451U)
The following warning indicates the possibility of damage to the vehi-
cle that may lead to an accident. Im mediately stop the vehicle in a
safe place and contact your Toyota dealer.
Failure to investigate the cause of the following warnings may lead to
the system operating abnormally and possibly cause an accident.
Have the vehicle ins pected by your Toyota dealer immediately.
Stop the vehicle immediately.
Warning lightWarning light/Details
Charging system warning light
Indicates a malfunction in the vehicle’s charging system
Low engine oil pressure warning light
Indicates that the engine oil pressure is too low.
Have the vehicle inspected by your Toyota dealer immediately.
Warning lightWarning light/Details
Malfunction indicator lampIndicates a malfunction in:
• The hybrid system;
• The electronic engine control system;
• The electronic throttle control system; or
• The hybrid transmission control system
SRS warning lightIndicates a malfunction in:
• The SRS airbag system;
• The front passenger occupant classification system; or
• The seat belt pretensioner system
ABS warning lightIndicates a malfunction in:
• The ABS; or
• The brake assist system
Electric power steering system warning light (warning
buzzer)Indicates a malfunction in the EPS (Electric Power Steer-
ing) system
Page 414 of 512

4147-2. Steps to take in an emergency
AVALON_HV_U (OM41451U)
After taking the specified steps to correct the suspected problem,
check that the warning light goes off.
(Flashes)
(If equipped)
“PCS” warning light Indicates a malfunction in the pre-collision system
The warning light will operate as follows, even when the
system is not malfunctioning:
• The light will flash quickly when the system is operating. (P. 245)
• The light will turn on when the pre-collision system is disabled. ( P. 246)
• The light will flash when the system cannot temporarily be used.
Slip indicatorIndicates a malfunction in:
• The VSC system;
• The TRAC system; or
• The hill-start assist control system
The light will flash when the ABS, the VSC, the TRAC or
the hill-start assist control system is operating.
Brake system warning light Indicates a malfunction in:
• The electronically controlled brake system; or
• The regenerative braking system
(Flashes)
(If equipped)
Automatic High Beam indicator light Indicates a malfunction in the Automatic High Beam sys-
tem.
Follow the correction procedures.
Warning lightWarning light/Details
Warning lightWarning light/DetailsCorrection procedure
Open door warning light
(warning buzzer)
*1
Indicates that a door or the
trunk is not fully closed
Check that all the doors and
the trunk are closed.
Page 415 of 512

4157-2. Steps to take in an emergency
7
When trouble arises
AVALON_HV_U (OM41451U)
Low fuel level warning
lightIndicates remaining fuel is
approximately 2.6 gal. (9.7
L, 2.1 Imp. gal.) or less
Refuel the vehicle.
Seat belt reminder light
(warning buzzer)
*2
Warns the driver and/or
front passenger to fasten
their seat belts
Fasten the seat belt. If the front passenger’s
seat is occupied, the front
passenger’s seat belt also
needs to be fastened to
make the warning light
(warning buzzer) off.
Master warning lightA buzzer sounds and the
warning light comes on
and flashes to indicate that
the master warning system
has detected a malfunc-
tion.
P. 422
Tire pressure warning
light
When the light comes on:
Low tire inflation pressure
such as• Natural causes ( P. 418)
• Flat tire ( P. 423)
Adjust the tire inflation
pressure to the specified
level.
The light will turn off after
a few minutes. In case
the light does not turn off
even if the tire inflation
pressure is adjusted,
have the system checked
by your Toyota dealer.
When the light comes on
after blinking for 1 minute:
Malfunction in the tire pres-
sure warning system
Have the system checked
by your Toyota dealer.
Warning lightWarning light/DetailsCorrection procedure
Page 417 of 512

4177-2. Steps to take in an emergency
7
When trouble arises
AVALON_HV_U (OM41451U)
■SRS warning light
This warning light system monitors the airbag sensor assembly, front impact
sensors, side impact sensors (front), side impact sensors (rear), driver’s seat
position sensor, driver’s seat belt buckle switch, front passenger occupant
classification system, “AIR BAG ON” indicator light, “AIR BAG OFF” indicator
light, front passenger’s seat belt buckle switch, seat belt pretensioners, air-
bags, interconnecting wiring and power sources. ( P. 38)
■ Front passenger detection sensor, seat belt reminder and warning
buzzer
If luggage is placed on the front passenger seat, the front passenger detec-
tion sensor may cause the warning light to flash and the warning buzzer to
sound even if a passenger is not sitting in the seat.
■ If the malfunction indicator la mp comes on while driving
First check the following:
● Is the fuel tank empty?
If it is, fill the fuel tank immediately.
● Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after several driving trips.
If the light does not go off even after several trips, contact your Toyota dealer
as soon as possible.
■ Electric power steering system warning light (warning buzzer)
When the 12-volt battery charge becomes insufficient of the voltage tempo-
rarily drops, the electric power steering system warning light may come on
and the warning buzzer may sound.
■
When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level. Push-
ing the tire pressure warning reset switch will not turn off the tire pressure
warning light.