2016 TOYOTA AURIS HYBRID battery

4367-3. Do-it-yourself maintenance
UK AURIS_HV_HB_EE (OM12K47E)
■Before recharging
When recharging, the 12-volt battery produces hydrogen gas which is flam-
mable and explosive. Therefore, before recharging:
●If recharging with the 12-volt battery installed on the vehicle, be sure to dis-
connect the ground cable.
● Make sure the power switch on the charger is off when connecting and dis-
connecting the charger cables to the 12-volt battery.
■ After recharging/reconnecting the 12-volt battery
●Vehicles with a smart entry & start system: Unlocking the doors using the
entry function may not be possible imm ediately after reconnecting the 12-
volt battery. If this happens, use the wireless remote control or the mechani-
cal key to lock/unlock the doors.
● Start the hybrid system with the pow er switch in ACCESSORY mode. The
hybrid system may not start with the power switch turned off. However, the
hybrid system will operate normally from the second attempt.
● The power switch mode is recorded by t he vehicle. If the 12-volt battery is
reconnected, the vehicle will return the power switch mode to the status it
was in before the 12-volt battery was disconnected. Make sure to turn the
power switch off before disconnecting the 12-volt battery. Take extra care
when connecting the 12-volt battery if the power switch mode prior to dis-
charge is unknown.
● When the 12-volt battery is reconnected, start the hybrid system, depress
the brake pedal, and confirm that it is possible to shift into each shift posi-
tion.
If the system will not start even after multiple attempts, contact any authorized
Toyota dealer or repairer, or another duly qualified and equipped profes-
sional.

4377-3. Do-it-yourself maintenance
UK AURIS_HV_HB_EE (OM12K47E)
7
Maintenance and care
WARNING
■ Chemicals in the 12-volt battery
The 12-volt battery contains poisonous and corrosive sulfuric acid and may
produce hydrogen gas which is flammable and explosive. To reduce the risk
of death or serious injury, take the following precautions while working on or
near the 12-volt battery:
●Do not cause sparks by touching the 12-volt battery terminals with tools.
● Do not smoke or light a match near the 12-volt battery.
● Avoid contact with eyes, skin and clothes.
● Never inhale or swallow electrolyte.
● Wear protective safety glasses when working near the 12-volt battery.
● Keep children away from the 12-volt battery.
■ Where to safely charge the 12-volt battery
Always charge the 12-volt battery in an open area. Do not charge the 12-
volt battery in a garage or closed room where there is not sufficient ventila-
tion.
■ How to recharge the 12-volt battery
Only perform a slow charge (5 A or less). The 12-volt battery may explode if
charged at a quicker rate.

4387-3. Do-it-yourself maintenance
UK AURIS_HV_HB_EE (OM12K47E)
WARNING
■ Emergency measures regarding electrolyte
●If electrolyte gets in your eyes
Flush your eyes with clean water for at least 15 minutes and get immedi-
ate medical attention. If possible, continue to apply water with a sponge or
cloth while traveling to the nearest medical facility.
● If electrolyte gets on your skin
Wash the affected area thoroughly. If you feel pain or a burning sensation,
seek medical attention immediately.
● If electrolyte gets on your clothes
It can soak through clothing on to your skin. Immediately take off the cloth-
ing and follow the procedure above if necessary.
● If you accidentally swallow electrolyte
Drink a large quantity of water or milk. Follow with milk of magnesia,
beaten raw egg or vegetable oil. Get emergency medical attention immedi-
ately.
■ When replacing the 12-volt battery
Use a 12-volt battery designed for the AURIS HYBRID. Failure to do so may
cause gas (hydrogen) to enter the passenger compartment, causing a fire
or explosion.
For replacement of the 12-volt battery, contact any authorized Toyota dealer
or repairer, or another duly qualified professional.
NOTICE
■ When recharging the 12-volt battery
Never recharge the 12-volt battery while the hybrid system is operating.
Also, be sure all accessories are turned off.

4597-3. Do-it-yourself maintenance
UK AURIS_HV_HB_EE (OM12K47E)
7
Maintenance and care
●Flathead screwdriver
● Small flathead screwdriver
● Lithium battery CR2032
Take out the mechanical key.
Remove the cover.
To prevent damage to the key,
cover the tip of the screwdriver with
a rag.
Remove the battery cover.
To prevent damage to the key,
cover the tip of the screwdriver with
a rag.
Electronic key batter y
Replace the battery with a new one if it is depleted or “Key bat-
tery low.” is displayed on the multi-information display.
You will need the following items:
Replacing the battery
1
2
3

4607-3. Do-it-yourself maintenance
UK AURIS_HV_HB_EE (OM12K47E)
Remove the depleted battery.
Insert a new battery with the “+”
terminal facing up.
■Use a CR2032 lithium battery
●Batteries can be purchased at any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional, local electrical appliance
shops or camera stores.
● Replace only with the same or equivalent type recommended by the manu-
facturer.
● Dispose of used batteries according to local laws.
■ If the key battery is depleted
The following symptoms may occur:
●The smart entry & start system (if equipped), push button start (if equipped)
and wireless remote control will not function properly.
● The operational range will be reduced.
4
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 BATTER IES ACCORDING TO THE INSTRUC-
TIONS

4617-3. Do-it-yourself maintenance
UK AURIS_HV_HB_EE (OM12K47E)
7
Maintenance and care
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.

481
8When trouble arises
UK AURIS_HV_HB_EE (OM12K47E)8-1. Essential information
Emergency flashers ........... 482
If your vehicle has to be stopped in an
emergency ....................... 483
8-2. Steps to take in an emergency
If your vehicle needs to be towed ...................... 484
If you think something is wrong ............................... 490
If a warning light turns on or a warning buzzer
sounds ............................. 491
If a warning message is displayed ......................... 498
If you have a flat tire (vehicles with
a spare tire) ..................... 507
If you have a flat tire (vehicles with an
emergency tire
puncture repair kit)........... 519
If the hybrid system will not start............................ 534
If the electronic key does not operate properly ........ 536
If the 12-volt battery is discharged ....................... 539
If your vehicle overheats ......................... 544
If the vehicle becomes stuck ................................ 549

484
UK AURIS_HV_HB_EE (OM12K47E)
8-2. Steps to take in an emergency
In the following situations, it is not possible to be towed by another
vehicle using cables or chains, as the front wheels may be locked due
to the parking lock. Contact any authorized Toyota dealer or repairer,
or another duly qualified and equipped professional or commercial
towing service.
●There is a malfunction in the P position control system. ( →P. 498)
● There is a malfunction in the immobilizer system. ( →P. 8 2 )
● There is a malfunction in the smart entry & start system. ( →P. 536)
● The 12-volt battery is discharged. ( →P. 539)
If your vehicle needs to be towed
If towing is necessary, we recommend having your vehicle
towed by any authorized Toyota dealer or repairer, or another
duly qualified and equipped professional or commercial towing
service, using a wheel-lift type truck or flatbed truck.
Use a safety chain system for all towing, and abide by all state/
provincial and local laws.
Situations when it is not possible to be towed by another vehicle