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PRIUS v_OM_OM47B23U_(U)
7-3. Do-it-yourself maintenance
Engine compartment
■12-volt battery
P. 442
Engine coolant reservoir
( P. 434)
Engine oil level dipstick ( P. 430)
Engine oil filler cap ( P. 432)
Power control unit coolant
reservoir ( P. 434) Brake fluid reservoir
( P. 437)
Fuse box ( P. 466)
Radiator ( P. 436)
Condenser ( P. 436)
Electric cooling fans
Washer fluid tank ( P. 440)1
2
3
4
5
6
7
8
9
10
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430
PRIUS v_OM_OM47B23U_(U)
7-3. Do-it-yourself maintenance
With the engine at operating temperature and turned off, check the oil
level on the dipstick.
■Checking the engine oilPark the vehicle on level ground. After warming up the engine
and turning off the hybrid system , wait more than 5 minutes for
the oil to drain back into the bottom of the engine.
Holding a rag under the end,
pull the dipstick out.
Wipe the dipstick clean.
Flat dipstick: Reinsert the dipstick fully.
Non-flat dipstick: Reinsert
the dipstick fully with its pro-
truding areas ( in the illus-
tration) pointing towards
engine.
Engine oil
1
2
3
4
1
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PRIUS v_OM_OM47B23U_(U)
4317-3. Do-it-yourself maintenance
7
Maintenance and care
Holding a rag under the end, pull the dipstick out and check the
oil level.Low
Normal
Excessive
The shape of the dipstick may differ depending on the type of vehicle or
engine.
Wipe the dipstick and reinsert it fully.
5
1
2
3
Flat dipstickNon-flat dipstick
Measuring side
6
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PRIUS v_OM_OM47B23U_(U)
7-3. Do-it-yourself maintenance
■Adding engine oil
If the oil level is below or near
the low level mark, add engine
oil of the same type as that
already in the engine.
Make sure to check the oil type and prepare the items needed
before adding oil.Remove the oil filler cap by turning it counterclockwise.
Add engine oil slowly, checking the dipstick.
Install the oil filler cap by turning it clockwise.
■ Engine oil consumption
A certain amount of engine oil will be consumed while driving. In the following
situations, oil consumption may increase, and engine oil may need to be
refilled in between oil maintenance intervals.
●When the engine is new, for example directly after purchasing the vehicle or
after replacing the engine
● If low quality oil or oil of an inappropriate viscosity is used
● When driving at high engine speeds or with a heavy load, or when driving
while accelerating or decelerating frequently
● When leaving the engine idling for a long time, or when driving frequently
through heavy traffic
Engine oil selectionP. 558
Oil quantity (Low Full)1.6 qt. (1.5 L, 1.3 Imp.qt.)
ItemsClean funnel
1
2
3
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PRIUS v_OM_OM47B23U_(U)
4337-3. Do-it-yourself maintenance
7
Maintenance and care
WARNING
■Used engine oil
●Used engine oil contains potentially harmful contaminants which may
cause skin disorders such as inflammation and skin cancer, so care
should be taken to avoid prolonged and repeated contact. To remove used
engine oil from your skin, wash thoroughly with soap and water.
● Dispose of used oil and filters only in a safe and acceptable manner. Do
not dispose of used oil and filters in household trash, in sewers or onto the
ground. Call your Toyota dealer, service station or auto parts store for
information concerning recycling or disposal.
● Do not leave used engine oil within the reach of children.
NOTICE
■To prevent serious engine damage
Check the oil level on a regular basis.
■ When replacing the engine oil
●Be careful not to spill engine oil on the vehicle components.
● Avoid overfilling, or the engine could be damaged.
● Check the oil level on the dipstick every time you refill the vehicle.
● Be sure the engine oil filler cap is properly tightened.
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8-2. Steps to take in an emergency
If a warning light turns on or a warning
buzzer sounds
Calmly perform the following actions 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.
Warning light and warning buzzer list
Warning lightWarning light/Details/Actions
(U.S.A.)
(Canada)
Brake system warning light and warning buzzer (red
indicator)
*1
Indicates that:
• The brake fluid level is low; or
• The brake system is malfunctioning
Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer. Continuing to drive the vehi-
cle may be dangerous.
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.
Brake system warning light (yellow indicator)
Indicates a malfunction in:
• The regenerative brake system; or
• The electronically controlled brake system
Have the vehicle inspected by your Toyota dealer
immediately.
Charging system warning light
Indicates a malfunction in the vehicle’s charging system
Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.
(If equipped)
Low engine oil pressure warning light
Indicates that the engine oil pressure is too low
Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.
(If equipped)
Hybrid system warning light (warning buzzer)
Indicates a malfunction in the hybrid system
Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.
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5108-2. Steps to take in an emergency
PRIUS v_OM_OM47B23U_(U)
*: Refer to the separate “Scheduled Maintenance Guide” or “Owner’s ManualSupplement” for the maintenance interval applicable to your vehicle.
Indicates an engine oil pressure malfunction A buzzer also sounds.
Immediately stop the vehicle in a safe place
and contact your Toyota dealer.
Indicates that the hybrid system has overheated This message may be displayed when driving
under severe operating conditions, and the out-
put of the hybrid system may temporarily
decrease in order to protect the system. (For
example, when driving up a long steep hill or
driving up a steep hill in reverse.)
A buzzer also sounds.
Stop and check. ( P. 546)
(If equipped)
Indicates a malfunction in the Automatic High
Beam
A buzzer also sounds.
Have the vehicle inspected by your Toyota
dealer.
(U.S.A. only)
Indicates that all maintenance according to the
driven distance on the maintenance schedule
*
should be performed soon.
Comes on approximately 4500 miles (7200 km)
after the message has been reset.
If necessary, perform maintenance.
(U.S.A. only)
Indicates that all maintenance is required to cor-
respond to the driven distance on the mainte-
nance schedule
*.
Comes on approximately 5000 miles (8000 km)
after the message has been reset. (The indica-
tor will not work properly unless the message
has been reset.)
Perform the necessary maintenance.
Please reset the message after the mainte-
nance is performed. ( P. 416)
Warning messageDetails/Actions
Page 557 of 624
PRIUS v_OM_OM47B23U_(U)
5579-1. Specifications
9
Vehicle specifications
*: The engine oil capacity is a reference quantity to be used when changingthe engine oil. Warm up the engine and turn off the hybrid system, wait
more than 5 minutes, and check the oil level on the dipstick.
Hybrid battery (traction battery)
Ty p eNickel-Metal hydride battery
Voltage7.2 V/module
Capacity6.5 Ah (3HR)
Quantity28 modules
Overall voltage201.6 V
Lubrication system
Oil capacity
(Drain and refill —
reference
*)
With filter
Without filter4.4 qt. (4.2 L, 3.7 Imp.qt.)
4.1 qt. (3.9 L, 3.4 Imp.qt.)