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PRIUS PRIME_OM_OM47A88U_(U)
7-1. Maintenance and care
NOTICE
■When using a high pressure car wash
● When washing the vehicle, do not let water of the high pressure washer hit
directly or the vicinity of the camera. Due to the shock from the high pres-
sure water, it is possible the device may not operate as normal.
● Do not bring the nozzle tip close to boots (rubber or resin manufactured
cover), connectors or the following parts. The parts may be damaged if
they come into contact with high-pressure water.
• Traction related parts
• Steering parts
• Suspension parts
• Brake parts
● Do not wash the underside of the vehicle using a high pressure car
washer.
● Do not use the washer on the area around the charging port lid. Water
could get into the charging inlet and could damage the vehicle.
■ When raising the windshield wiper arms
Make sure to hold the hook parts of the
wiper arms to raise them.
Do not hold only the wiper blades when
raising them, or it may cause deformation
of the wiper blades.
Hook parts
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PRIUS PRIME_OM_OM47A88U_(U)
7-2. Maintenance
Vehicle exterior
ItemsCheck points
Doors• Do the doors operate smoothly?
Engine hood• Does the engine hood lock system work prop-erly?
Fluid leaks• There should not be any signs of fluid leakageafter the vehicle has been parked.
Tires
• Is the tire inflation pressure correct?
• The tires should not be damaged or exces-sively worn.
• Have the tires been rotated according to the
maintenance schedule?
• The wheel nuts should not be loose.
Windshield wipers
• The wiper blades should not show any signs
of cracking, splitting, wear, contamination or
deformation.
• The wiper blades should clear the windshield
without streaking or skipping.
Charging equipment
ItemsCheck points
Charging cable• Check the conditions of the charging cableand charging connector. ( →P. 112)
WARNING
■If the hybrid system is operating
Turn the hybrid system off and ensure that there is adequate ventilation
before performing maintenance checks.
Page 587 of 784
PRIUS PRIME_OM_OM47A88U_(U)
5877-3. Do-it-yourself maintenance
7
Maintenance and care
Check the 12-volt battery as follows:
■12-volt battery exterior
Make sure that the 12-volt battery terminals are not corroded and
that there are no loose connections, cracks, or loose clamps.
Terminals
■ When opening the cover of th e positive (+) battery terminal
■ Before recharging
When recharging, the 12-volt battery produces hydrogen gas which is flam-
mable and explosive. Therefore, observe the following precautions 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.
12-volt battery
While pushing the portion shown in the
illustration from both sides, lift the end of
the cover up.
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PRIUS PRIME_OM_OM47A88U_(U)
7-3. Do-it-yourself maintenance
■After recharging/reconnect ing the 12-volt battery
● Unlocking the doors using the smart key system may not be possible imme-
diately after reconnecting the 12-volt battery. If this happens, use the wire-
less remote control or the mechanical key to lock/unlock the doors.
● Start the hybrid system with the power 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 the 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 off
the power before disconnect the 12-volt battery. Take extra care when con-
necting the 12-volt battery if the power switch mode prior to discharge is
unknown.
If the system will not start even after multiple attempts at all methods above,
contact your Toyota dealer.
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 insufficient ventila-
tion.
■ How to recharge th e 12-volt battery
Only perform a slow charge (5 A or less). The 12-volt battery may explode if
charged at a quicker rate.
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PRIUS PRIME_OM_OM47A88U_(U)
5897-3. Do-it-yourself maintenance
7
Maintenance and care
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 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.
■ When disconnecting th e 12-volt battery
Do not disconnect the negative (-) terminal on the body side. The discon-
nected negative (-) terminal may touch the positive (+) terminal, which may
cause a short and result in death or serious injury.
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.
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PRIUS PRIME_OM_OM47A88U_(U)
6117-3. Do-it-yourself maintenance
7
Maintenance and care
WARNING
■Using the tire jack
Observe the following precautions.
Improper use of the tire jack may cause the vehicle to suddenly fall off
the jack, leading to death or serious injury.
●Only use the tire jack that comes wit h this vehicle for replacing a tire.
Do not use it on other vehicles, and do not use other tire jacks for
replacing tires on this vehicle.
●Do not raise the vehicle while someone is inside.
●Do not use the tire jack for any purpose other than replacing tires or
installing and removing tire chains.
●Do not put any part of your body under the vehicle while it is supported
by the jack.
●Do not start the hybrid system or drive the vehicle while the vehicle is
supported by the jack.
●When raising the vehicle, do not put an object on or under the jack.
●Do not raise the vehicle to a height greater than that required to
replace the tire.
●Use a jack stand if it is necessary to get under the vehicle.
●When lowering the vehicle, make su re that there is no-one near the
vehicle. If there are people nearby, warn them vocally before lowering.
■When removing the jack from the storage location
The jack may be hot due to heat from the charging equipment during or
after charging. Please use gloves when handling the jack. If it is touched
with bare hands, it may result in burns.
●Put the jack properly in its jack point.
(→ P. 615)
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PRIUS PRIME_OM_OM47A88U_(U)
7-3. Do-it-yourself maintenance
Air conditioning filter
Turn the power switch off.
Confirm that the charging connector is not connected. Also, do not use the
Remote Air Conditioning System during the procedure.
Open the front passenger’s door.
By keeping the door open, unexpected operation of the Remote Air Condi-
tioning System can be prevent. (→P. 510)
Open the glove box and slide
off the damper.
Push in each side of the glove
box to disconnect the claws,
and then slowly and fully open
the glove box while supporting
it.
The air conditioning filter must be changed regularly to maintain
air conditioning efficiency.
Replacing the air conditioning filter
1
2
3
4
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PRIUS PRIME_OM_OM47A88U_(U)
7-3. Do-it-yourself maintenance
■Checking interval
Inspect and replace the air conditioning filter according to the maintenance
schedule. In dusty areas or areas with heavy traffic flow, early replacement
may be required. (For scheduled maintenance information, please refer to the
“Scheduled Maintenance Guide” or “Owner’s Manual Supplement”.)
■ If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
WARNING
■When replacing the air conditioning filter
Observe the following precautions. Failure to do so may result in the air
conditioning system operating during the procedure, possibly resulting in
injury.
● Check that the charging connector is not connected
The air conditioning may operate due to the “Climate Prep” (→P. 147) or
“Traction Battery Cooler” (→P. 127) setting.
● Do not use the Remote Air Conditioning System