Page 523 of 788

5236-3. Do-it-yourself maintenance
UK_AURIS/AURIS_HV_EE (OM12G88E)
6
Maintenance and care
Check the radiator, condenser and intercooler and clear away any for-
eign objects.
If any of the above parts are extremely dirty or you are not sure of
their condition, have your vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and equipped profes-
sional.
NOTICE
When adding coolant
Coolant is neither plain water nor straight antifreeze. The correct mixture of
water and antifreeze must be used to provide proper lubrication, corrosion
protection and cooling. Be sure to read the antifreeze or coolant label.
If you spill coolant
Be sure to wash it off with water to prevent it from damaging parts or paint.
Radiator, condenser and intercooler
CAUTION
When the engine is hot (except hybrid model)
Do not touch the radiator, condenser or intercooler as they may be hot and
cause serious injuries, such as burns.
When the hybrid system is hot (hybrid model)
Do not touch the radiator or condenser as they may be hot and cause seri-
ous injuries, such as burns.
Page 525 of 788

5256-3. Do-it-yourself maintenance
UK_AURIS/AURIS_HV_EE (OM12G88E)
6
Maintenance and care
Before recharging
When recharging, the 12-volt battery produces hydrogen gas which is flam-
mable and explosive. Therefore, observe the following 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 smart entry & start system may not be possi-
ble immediately after reconnecting the 12-volt battery. If this happens, use
the wireless remote control or the mechanical key to lock/unlock the doors.
Start the engine with the engine switch in ACCESSORY mode. The engine
may not start with the engine switch turned off. However, the engine will
operate normally from the second attempt.
The engine switch mode is recorded by the vehicle. If the 12-volt battery is
reconnected, the vehicle will return the engine switch mode to the status it
was in before the 12-volt battery was disconnected. Make sure to turn off
the engine before disconnect the 12-volt battery. Take extra care when con-
necting the 12-volt battery if the engine switch mode prior to discharge is
unknown.
If the system will not start even after multiple attempts, contact any authorized
Toyota dealer or repairer, or another duly qualified and equipped professional.
CAUTION
Chemicals in the 12-volt battery
Batteries contain 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.
Page 526 of 788

5266-3. Do-it-yourself maintenance
UK_AURIS/AURIS_HV_EE (OM12G88E)
CAUTION
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 insufficient 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.
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 burning, get 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. Get emergency medical attention
immediately.
NOTICE
When recharging the 12-volt battery
Never recharge the 12-volt battery while the engine is operating. Also, be
sure all accessories are turned off.
Page 527 of 788
5276-3. Do-it-yourself maintenance
UK_AURIS/AURIS_HV_EE (OM12G88E)
6
Maintenance and care
Vehicles without headlight cleaner
If any washer does not work,
the washer tank may be empty.
Add washer fluid.
Vehicles with headlight cleaner
If the fluid level is extremely low
add washer fluid.
Raise the cap keeping your fin-
ger pressed down on the hole in
the center and check the fluid
level in the tube.
Washer fluid
CAUTION
When adding washer fluid
Except hybrid model: Do not add washer fluid when the engine is hot or run-
ning as washer fluid contains alcohol and may catch fire if spilled on the
engine etc.
Hybrid model: Do not add washer fluid when the hybrid system is hot or
operating as washer fluid contains alcohol and may catch fire if spilled on
the engine etc.
Page 528 of 788

5286-3. Do-it-yourself maintenance
UK_AURIS/AURIS_HV_EE (OM12G88E)
You may drain the fuel filter yourself. However, as the operation is dif-
ficult, we recommend having it drained by any authorized Toyota
dealer or repairer, or another duly qualified and equipped profes-
sional. Even if you decide to drain it yourself, contact any authorized
Toyota dealer or repairer, or another duly qualified and equipped pro-
fessional.
Vehicles without a multi-information display
The water in the fuel filter needs to be drained if the fuel filter warn-
ing light comes on and a buzzer sounds. (P. 617)
Vehicles with a multi-information display
When the “DRAIN WATER FROM FUEL FILTER” warning mes-
sage is shown on the multi-information display and a buzzer
sounds. (P. 639)
Vehicles without a smart entry & start system: Turn the engine
switch to the “LOCK” position.
Vehicles with a smart entry & start system: Turn the engine
switch off.
Place a small tray under the drain plug to catch the water and
any fuel that comes out.
NOTICE
Do not use any fluid other than washer fluid
Do not use soapy water or engine antifreeze instead of washer fluid.
Doing so may cause streaking on the vehicle’s painted surfaces.
Diluting washer fluid
Dilute washer fluid with water as necessary.
Refer to the freezing temperatures listed on the label of the washer fluid bot-
tle.
Fuel filter (diesel engine only)
1
2
Page 538 of 788

5386-3. Do-it-yourself maintenance
UK_AURIS/AURIS_HV_EE (OM12G88E)
How to initialize the tire pressure warning system
Except hybrid model
Park the vehicle in a safe place and turn the engine switch off.
Initialization cannot be performed while the vehicle is moving.
Adjust the tire inflation pressure to the specified cold tire inflation
pressure level. (P. 750)
Make sure to adjust the tire pressure to the specified cold tire inflation
pressure level. The tire pressure warning system will operate based on
this pressure level.
Vehicles with a smart entry & start system: Turn the engine
switch to IGNITION ON mode.
Vehicles without a smart entry & start system: Turn the engine
switch to the “ON” position.
Open the glove box. Press
and hold the tire pressure
warning reset switch until the
tire pressure warning light
blinks slowly 3 times.
Vehicles with a smart entry & start system: Wait for a few minutes
with the engine switch in IGNITION ON mode and then turn the
engine switch off.
Vehicles without a smart entry & start system: Wait for a few min-
utes with the engine switch in the “ON” position and then turn the
engine switch to the “ACC” or “LOCK” position.
1
2
3
4
5
Page 542 of 788

5426-3. Do-it-yourself maintenance
UK_AURIS/AURIS_HV_EE (OM12G88E)The initialization operation (vehicles with a tire pressure warning sys-
tem)
Except hybrid model
Make sure to carry out initialization after adjusting the tire inflation pressure.
Also, make sure the tires are cold before carrying out initialization or tire
inflation pressure adjustment.
If you have accidentally turned the engine switch off during initialization, it is
not necessary to press the reset switch again as initialization will restart
automatically when the engine switch has been turned to IGNITION ON
mode (vehicles with a smart entry & start system) or engine switch to the
“ON” position (vehicles without a smart entry & start system) for the next
time.
If you accidentally press the reset switch when initialization is not necessary,
adjust the tire inflation pressure to the specified level when the tires are
cold, and conduct initialization again.
Hybrid model
Make sure to carry out initialization after adjusting the tire inflation pressure.
Also, make sure the tires are cold before carrying out initialization or tire
inflation pressure adjustment.
If you have accidentally turned the power switch off during initialization, it is
not necessary to press the reset switch again as initialization will restart
automatically when the power switch has been turned to ON mode for the
next time.
If you accidentally press the reset switch when initialization is not necessary,
adjust the tire inflation pressure to the specified level when the tires are
cold, and conduct initialization again.
Warning performance of the tire pressure warning system (vehicles with
a tire pressure warning system)
The warning of the tire pressure warning system will change in accordance
with driving conditions. For this reason, the system may give a warning even
if the tire pressure does not reach a low enough level, or if the pressure is
higher than the pressure that was adjusted to when the system was initial-
ized.
Page 553 of 788
5536-3. Do-it-yourself maintenance
UK_AURIS/AURIS_HV_EE (OM12G88E)
6
Maintenance and care
Except hybrid model: Turn the engine switch off.
Hybrid model: Turn the power switch off.
Open the glove box. Slide off
the damper.
Push in the glove box on the
vehicle’s outer side to discon-
nect the claws. Then pull out
the glove box and disconnect
the lower claws.
Air conditioning filter
The air conditioning filter must be changed regularly to maintain
air conditioning efficiency.
Removal method
1
2
3