battery TOYOTA YARIS 2018 Repair Manual

4807-3. Do-it-yourself maintenance
YARIS_HV_OM_Europe_OM52J66E
WARNING
■Removed 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.
■ Certification for the lithium battery
CAUTION: RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN
INCORRECT TYPE. DISPOSE OF USED BATTERIES ACCORDING TO
THE INSTRUCTIONS
NOTICE
■ For normal operation after replacing the 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.

505
8When trouble arises
YARIS_HV_OM_Europe_OM52J66E
8-1. Essential information
Emergency flashers ........... 506
If your vehicle has to
be stopped in
an emergency .................. 507
8-2. Steps to take in
an emergency
If your vehicle needs to
be towed .......................... 509
If you think something is
wrong ............................... 516
If a warning light turns on
or a warning buzzer
sounds ............................. 517
If a warning message is
displayed (vehicles with
color display) ................... 531
If you have a flat tire
(vehicles with
an emergency tire
puncture repair kit)........... 537
If you have a flat tire
(vehicles with
a spare tire) ..................... 556
If the hybrid system will
not start............................ 571
If the electronic key does
not operate properly
(vehicles with a smart
entry & start system)........ 573
If the vehicle 12-volt
battery is discharged ....... 576
If your vehicle overheats .... 581
If the vehicle becomes
stuck ................................ 587

5218-2. Steps to take in an emergency
8
When trouble arises
YARIS_HV_OM_Europe_OM52J66E
*4
(Flashes in yellow for 15 seconds.)
Smart entry & start system indicator (if equipped)
Indicates a malfunction in the smart entry & start system.
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer.
*4
Low traction battery warning light (warning buzzer)
Indicates that the hybrid battery (traction battery) is low.
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer.
*2, 4Open door warning light (warning buzzer)
Indicates that one or more of the doors is not fully closed.
 Check that all the side doors and back door are
closed.
Low fuel level warning light
Indicates that remaining fuel is about 5.2 L (1.4 gal.,
1.1 lmp. gal.) or less.
 Refuel the vehicle.
*3
Driver’s and front passenger’s seat belt reminder light
(warning buzzer)
Warns the driver and front passenger to fasten their seat
belts.
 Fasten the seat belt.
If the passenger’s seat is occupied, the front passen-
ger’s seat belt also needs to be fastened to make the
warning light (warning buzzer) turn off.
*3
(On the center panel)
Rear passenger’s seat belt reminder lights
(warning buzzer)
Warns the rear passenger’s to fasten their seat belts.
 Fasten the seat belt.
Warning lightWarning light/Details/Actions

5238-2. Steps to take in an emergency
8
When trouble arises
YARIS_HV_OM_Europe_OM52J66E
*1: Parking brake engaged warning buzzer:
A buzzer will sound if the vehicle is driven at a speed of approximately
5 km/h (3 mph) or more.
*2: Open door warning buzzer:
A buzzer will sound if the vehicle reaches a speed of 5 km/h (3 mph) or
more with any door open.
*3: Driver’s and passenger’s seat belt buzzer:
The driver’s and passenger’s seat belt buzzer sounds to alert the driver
and passenger that his or her seat belt is not fastened. The buzzer sounds
for 30 seconds after the vehicle reaches a speed of at least 20 km/h
(12 mph). Then, if the seat belt is still unfastened, the buzzer will sound in
a different tone for 90 more seconds.
*4: Vehicles with monochrome display
*5: Vehicles with color display
*4
P position request warning light (warning buzzer)
An attempt was made to start the hybrid system.
 Shift the shift lever to P.
P position request warning light (warning buzzer)
• Indicates that the driver’s door was opened with the shift
lever in N, D or B.
 Shift the shift lever to P.
• Indicates that the hybrid battery (traction battery) power
has dropped because a long period of time has elapsed
after shifting the shift lever to N.
 Shift the shift lever to P and restart the hybrid system
when starting the vehicle.
Warning lightWarning light/Details/Actions

5248-2. Steps to take in an emergency
YARIS_HV_OM_Europe_OM52J66E
Carrying out the corresponding action turns the warning light off.
■Passenger detection sensor and passenger seat belt reminder
● If luggage is placed on a passenger seat, the passenger detection sensor
may cause the warning light to flash even if a passenger is not sitting in the
seat.
● If a cushion is placed on the seat, the sensor may not detect a passenger,
and the warning light may not operate properly.
■ Warning light operations for unfastened rear passenger seat belts
● When opening and closing the rear door, the warning light comes on for
approximately 34 seconds.
● When any of the rear seat belts are unfastened, the warning light comes on.
When the rear doors are opened and closed while the warning light is on,
the warning light will turn off after approximately 34 seconds.
■ If the malfunction indicator lamp comes on while driving
For some models, the malfunction indicator lamp will come on if the fuel tank
becomes completely empty. If the fuel tank is empty, refuel the vehicle imme-
diately. The malfunction indicator lamp will go off after several trips.
If the malfunction indicator lamp does not go off, contact any authorized
Toyota retailer or Toyota authorized repai rer, or any reliable repairer as soon
as possible.
Other warning light (vehicles with monochrome display)
Warning lightWarning light/Details/Actions
Go to service warning light
Indicates that maintenance of the hybrid battery (traction
battery) cooling component is required
The filter may be clogged, the air intake vent may be
blocked or there may be a gap in the duct.
 If the air intake vent is dirty, refer to P. 420 for clean-
ing the air intake vent.
 If the warning light comes on and the air intake vent
is not dirty, have the vehicle inspected at any autho-
rized Toyota retailer or Toyota authorized repairer, or
any reliable repairer.

5258-2. Steps to take in an emergency
8
When trouble arises
YARIS_HV_OM_Europe_OM52J66E
■ Warning buzzer
In some cases, the buzzer may not be heard because of noisy place or an
audio sound.
■ 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 steering system warning light may come on
and the warning buzzer may sounds.
■ When the tire pressure warning light comes on (vehicles with a tire pres-
sure warning system)
Inspect the appearance of the tire to check that the tire is not punctured.
If the tire is punctured: P. 537, 556
If the tire is not punctured:
Carry out the following procedure after the tire temperature has lowered suffi-
ciently.
● Check the tire inflation pressure and adjust to the appropriate level.
● If the warning light does not go out even after several minutes, check that
the tire inflation pressure is at the specified level and carry out initialization.
The warning light may come on again if the above operations are conducted
without first allowing the tire temperature to lower sufficiently.
■ The tire pressure warning light may come on due to natural causes
(vehicles with a tire pressure warning system)
The tire pressure warning light may come on due to natural causes such as
natural air leaks and tire inflation pressure changes caused by temperature.
In this case, adjusting the tire inflation pressure will turn off the warning light
(after a few minutes).
■ When a tire is replaced with a spare tire (include compact spare tire)
(vehicles with a tire pressure warning system)
The spare tire (include compact spare tire) is not equipped with a tire pres-
sure warning valve and transmitter. If a tire goes flat, the tire pressure warn-
ing light will not turn off even though the flat tire has been replaced with the
spare tire. Replace the spare tire wi th the repaired tire and adjust the tire
inflation pressure. The tire pressure warning light will go off after a few min-
utes.

5308-2. Steps to take in an emergency
YARIS_HV_OM_Europe_OM52J66E
Once(Flashes in yellow for 15 seconds.)
Smart entry & start system indicator
Indicates that the electronic key is not pres-
ent when attempting to start the hybrid sys-
tem.
 Confirm the location of the electronic
key.
9 times(Flashes in yellow)
Smart entry & start system indicator
An attempt was made to drive when the
regular key was not inside the vehicle.
 Confirm that the electronic key is inside
the vehicle.
Once(Flashes in yellow for 15 seconds.)
Smart entry & start system indicator
Indicates that the electronic key battery is
low.
 Replace the battery. (P. 477)
Once(Flashes quickly in green for 15 seconds.)
Smart entry & start system indicator
Indicates that the steering lock has not
been released.
 Release the steering lock. (P. 226)
Once(Flashes in yellow for 30 seconds.)
Smart entry & start system indicator
• When the doors were unlocked with the
mechanical key and then the power
switch was pressed, the electronic key
could not be detected in the vehicle.
• The electronic key could not be detected
in the vehicle even after the power switch
was pressed two consecutive times.
 Touch the electronic key to the power
switch while depressing the brake
pedal.
Interior
buzzer
Exterior
buzzer
Warning
lightWarning light/Details/Actions

5348-2. Steps to take in an emergency
YARIS_HV_OM_Europe_OM52J66E
■If “See owner’s manual” is shown
If “Hybrid system malfunction. Stop in a safe place. See owner’s
manual.” is shown, there may be a malfunction. Immediately have
the vehicle inspected by any authorized Toyota retailer or Toyota
authorized repairer, or any reliable repairer.
■If “Maintenance required for Traction battery cooling parts.
See owner’s manual” is shown
The filter may be clogged, the air intake vent may be blocked or
there may be a gap in the duct.
If the air intake vent is dirty, refer to P. 420 for cleaning the air intake
vent.
If the message is being displayed and the air intake vent is not dirty,
have the vehicle inspected at any authorized Toyota retailer or Toy-
ota authorized repairer, or any reliable repairer.
■If “Charging system malfunction. Stop in a safe place. See
owner’s manual.” is shown
Indicates a malfunction in the vehicle’s charging system. Immedi-
ately stop the vehicle in a safe place and contact any authorized
Toyota retailer or Toyota authorized repairer, or any reliable
repairer. Continuing to drive the vehicle may be dangerous.
■If “Engine oil pressure low” is shown
Indicates that the engine oil pressure is too low. Immediately stop
the vehicle in a safe place and contact any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.

5358-2. Steps to take in an emergency
8
When trouble arises
YARIS_HV_OM_Europe_OM52J66E
■If “Hybrid system overheated. Reduced output power.” is
shown
This message may be shown when driving under severe operating
conditions. (For example, when driving up a long steep hill.)
Handling method: P. 581
■If “Hybrid battery low. Hybrid system stopped. Shift to P and
restart.” is shown
Message is displayed when the remaining charge for the hybrid
battery (traction battery) is low, because vehicle has been shifted to
N for a long period of time.
When operating the vehicle, shift to P and restart the hybrid system.
■If “Hybrid battery low. Shift out of N to recharge.” is shown
Message is displayed when the remaining charge for the hybrid
battery (traction battery) is low.
As the hybrid battery (traction battery) cannot be charged when the
shift lever is in N, when stopped for long periods of time shift the
shift lever to P.
■If “Shift is in N. Release accelerator before shifting.” is shown
Message is displayed when the accelerator pedal has been
depressed and the shift lever is in N.
Release the accelerator pedal and shift the shift lever to D or R.
■If “Auto power off to conserve battery” is shown
The power switch has been turned off by the automatic power off
function.
When starting the hybrid system next time, operate the hybrid sys-
tem for approximately 5 minutes to recharge the 12-volt battery

5368-2. Steps to take in an emergency
YARIS_HV_OM_Europe_OM52J66E
■If “Front camera unavailable.” or “Front camera vision
blocked. Clean and demist windshield.” is displayed.
The following systems may be suspended until the problem shown
in the message is resolved.
● PCS (Pre-Crash Safety system)*
●LDA (Lane Departure Alert)*
●Automatic High Beam*
●RSA (Road Sign Assist)*
*: If equipped
■If “Low 12V sub battery level.” is shown.
Message is displayed when the remaining charge for the 12-volt
battery is low.
Charge or replace the 12-volt battery.
■Warning buzzer
 P. 5 2 5