2009 TOYOTA PRIUS engine

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Maintenance and care
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Engine compartment cover
■ Removing the cover
Front
■ Installing the clips
Push up center portion
Insert
Press
Engine oil
With the engine at operating temperature and turned off, check the oil
level on the dipstick.
■ Checking the engine oil
Park the vehicle on level ground. After turning off the hybrid
system, wait more than five mi nutes for the oil to drain back
into the bottom of the engine.
STEP1

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■
Adding engine oil
If the oil level is below or near the low level mark, add engine oil of
the same type as already in the engine.
Make sure to check the oil type
and prepare the items needed
before adding oil.
Remove the oil filler cap.
Add engine oil slowly, checking the dipstick.
Install the filler cap, turning it clockwise until you hear a click.
Oil gradeILSAC multigrade engine oil
Oil quantity
(Low  Full) 1.6 qt. (1.5 L, 1.3 Imp. qt.)
Items Clean funnel
STEP1
STEP2
STEP3

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Engine oil consumption
● The amount of engine oil consumed depends on the oil viscosity, the
quality of the oil and the way the vehicle is driven.
● More oil is consumed under driving conditions such as high speeds, fre-
quent acceleration and deceleration.
● A new engine consumes more oil.
● When judging the amount of oil consumption, keep in mind that the oil
may have become diluted, making it difficult to judge the true level accu-
rately.
● Oil consumption: Max. 1.1 qt./600 miles, 0.9 lmp. qt./600 miles (1.0 L per
1000 km). If the vehicle consumes more than this amount, contact your
Toyota dealer.
■ Resetting the engine oil maintenance data (U.S.A. only)
Perform the following steps:
Turn the “POWER” switch to OFF mode with the odometer shown.
Turn the “POWER” switch to ON mode with the trip meter reset but-
ton (P. 146) held down.
Keep pressing the button for longer than 5 seconds after the
“POWER” switch is in ON mode.
When the odometer indicates “000000” and the light goes off, the system
reset is completed.
STEP1
STEP2
STEP3

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CAUTION
■Used engine oil
● Used engine oil contains potentially harmful contaminants which may
cause skin disorders such as inflammation or 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 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 retightened.

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Engine/inverter coolant
The coolant level is satisfactory if it is between the “FULL” and “LOW”
lines on the reservoir when the engine is cold.
Engine coolant reservoir Reservoir cap
FULL
LOW
If the level is on or below the
“LOW” line, add coolant up to the
“FULL” line.
Inverter coolant reservoirReservoir cap
FULL
LOW
If the level is on or below the
“LOW” line, add coolant up to the
“FULL” line.
FULL
FULLLOW
LOW
1
2
3
ITY43P012
LOW
FULL
LOW
1
2
3
ITY43P013

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■If the coolant level drops within a short time after replenishing
Visually check the radiator, hoses, engine coolant filler cap, radiator cap,
drain cock and water pump.
If you cannot find a leak, have your Toyota dealer pressure test the cap and
check for leaks in the cooling system.
■ Coolant selection
Only use “Toyota Super Long Life Coolant” or similar high quality ethylene
glycol based non-silicate, non-amine, non-nitrite, and non-borate coolant
with long-life hybrid organic acid technology.
U.S.A.: “Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deionized water. (Enabled: -31 F [-35 C])
Canada: “Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45% deionized water. (Enabled: -44 F [-42C])
For more details about engine coolant, contact your Toyota dealer.
CAUTION
■ When the coolant is hot
Do not remove the coolant reservoir cap.
The cooling system may be under pressure and may spray hot coolant if the
cap is removed, causing burns or other injuries.
NOTICE
■When adding the coolant
Coolant is neither plain water not straight antifreeze. The correct mixture of
water and anti freeze 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 damage to parts or paint.

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Radiator and condenser
Check the radiator and condenser and clear any foreign objects.
If either of the above parts are extremely dirty or you are not sure of
their condition, have your vehicl e checked by your Toyota dealer.
Brake fluid
■ Checking fluid level
The brake fluid level should be
between the “MAX” and “MIN”
lines on the tank.
Make sure to check the fluid type and prepare the necessary items.
■ Adding fluid
CAUTION
■When the engine is hot
Do not touch the radiator or condenser, as they may be hot and you may be
burned.
Fluid typeFMVSS No.116 DOT 3 or SAE J1703 brake fluid
ItemsClean funnel

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■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
disconnect the ground cable.
● Make sure the power switch on the charger is off when connecting and
disconnecting the charger cables to the 12 volt battery.
■ After recharging/reconnecting the 12 volt battery
In some cases, the hybrid system may not start. Follow one or both of the
following procedures:
● After opening and closing the driver’s door, wait 10 seconds then attempt
to start the engine. (If the system does not start first time, repeat the pro-
cedure.)
● With the shift lever in “P” and the “POWER” switch in the OFF mode,
open and close any door, then attempt to start the hybrid system.
If the system will not start even after multiple attempts at both methods, con-
tact your Toyota dealer.