2019 TOYOTA PRIUS engine

53Maintenance Log
MAINTENANCE LOG
MAINTENANCE
120,000 miles or 144 months
Check installation of driver’s floor mat
Inspect and adjust all fluid levels1
Inspect wiper blades
Replace cabin air filter
Replace engine air filter
Replace engine oil and oil filter2
Replace spark plugs4
Re-torque drive shaft nut (AWD)
Rotate tires
Inspect the following:
_
Automatic transmission for signs of leakage
_
Ball joints and dust covers
_
Brake lines and hoses
_
Brake linings/drums and brake pads/discs
5
_
Drive shaft boots
_
Engine/Inverter coolant
6
_
Exhaust pipes and mountings

Additional Maintenance Items for Special Operating Conditions3
Driving on dirt roads or dusty roads:Tighten nuts and bolts on chassis and body
Driving while towing, using a car-top carrier, or heavy vehicle loading:7
Replace automatic transmission fluid
Replace rear differential oil (AWD)
Tighten nuts and bolts on chassis and body
Extensive idling and/or low speed driving for a long distance such as police, taxi or
door-to-door delivery use:
Clean HV battery cooling intake filter

1
Inspect sealed transmissions, transfer cases and differentials for signs of leakage. If any leakage from a sealed
component is suspected, it is recommended that you have the sealed component inspected by a Toyota dealer. Inspect
power steering fluid (if equipped) and brake fluid level/condition. Inspect engine and inverter (if equipped) coolant
level/condition/freezing point. Your dealer may recommend services (Dealer-Recommended Maintenance) based on
inspection results.
2
Reset the oil replacement reminder light (“MAINT REQD”) or the message “OIL MAINTENANCE REQUIRED” on the
multi-information display after maintenance at every 5,000 miles.
3
Perform these service items only if you drive primarily under the conditions indicated.4 Maintenance services of spark plugs are required under the terms of the Emissions Control Warranty. For vehicles
corresponding to PZE V the replacement interval is 150,000 miles.
5 Inspect thickness measurement and disc runout.6
Refer to “Engine/Inverter Coolant” in the “Explanation of Maintenance Items” section in the back of this guide for
more information.
7
Not all vehicles are designed for towing. Refer to your Vehicle Owner’s Manual for details.
_
Fuel lines and connections, fuel tank band
and fuel tank vapor vent system hoses
_
Fuel tank cap gasket
_
Radiator, condenser and/or intercooler
_
Rear differential oil (AWD)
_
Steering gear
_
Steering linkage and boots
DEALER SERVICE VERIFICATION:
D
ATE:
MILEAGE:

55Maintenance Log
MAINTENANCE
Driver’s Floor Mat
• Only use the driver’s floor mat
designed specifically for the model
and model year of your vehicle.
• Always properly secure the driver’s
floor mat using the retaining hooks.
• Never install another floor mat on top
of the existing driver’s floor mat.
• Never install the driver’s floor mat
upside down.
Engine Air Filter
Inspect or replace at specified intervals.
When performing inspections, check for
damage, excessive wear and oiliness, and
replace if necessary.
Engine/Inverter Coolant
Drain the cooling system and refill with an
ethylene-glycol type coolant. Inspect hoses
and connections for corrosion and leaks.
Tighten connections and replace parts
when necessary. A qualified technician
should perform these operations. (For
further details, refer to “Radiator, Condenser
and Hoses” in the “Maintenance and Care”
section of the Owner’s Manual).
Your Toyota is equipped with Genuine
Toyota Super Long-Life Coolant. The
replacement intervals for engine coolant
recommended in this booklet are based
on replacement with Genuine Toyota
Super Long-Life Coolant or similar
high-quality non-silicate, non-amine,
non-borate ethylene-glycol coolant with
long-life hybrid organic acid technology
(i.e., a combination of low phosphates
and organic acids). If another type of
ethylene-glycol coolant is used,
replacement intervals may be different.
EXPLANATION OF MAINTENANCE ITEMS

56Maintenance Log
MAINTENANCE
EXPLANATION OF MAINTENANCE ITEMS
Engine Oil and Oil Filter
Replace the oil filter and drain and refill
the engine oil at specified intervals. For
recommended oil grade and viscosity,
refer to the Owner’s Manual.
NOTE: Your vehicle is certified with
Genuine Toyota 0W-16 motor oil. For
VEHICLES CERTIFIED FOR 0W-16 motor
oil, the oil change interval is 10,000 miles
or 12 months IF 0W-16 MOTOR OIL IS
BEING USED. If 0W-16 is not available,
0W-20 oil may be used. However,
it must be replaced at a 5,000-miles or
six-month INTERVAL with 0W-16 motor oil.
For customers who primarily drive their
vehicle under any of the listed Special
Operating Conditions, the motor oil and
filter should be replaced at 5,000 miles or
six months, REGARDLESS OF THE OIL USED
(OR CERTIFICATION OF THE VEHICLE).
Exhaust Pipes and Mountings
Visually inspect the exhaust pipes, muffler
and hangers for cracks, deterioration and
damage. Start the engine and listen
carefully for any exhaust gas leakage.
Tighten connections or replace parts
as necessary.
Fuel Lines and Connections,
Fuel Tank Band and Fuel Tank
Vapor Vent System Hoses
Visually inspect for corrosion, damage,
cracks, and loose or leaking connections.
Tighten connections or replace parts
as necessary.
Fuel Tank Cap Gasket
Visually inspect for cracks, deterioration
and damage and replace if necessary.
HV Battery Cooling Intake Filter
Clean at specified intervals. Refer to
“Cleaning the hybrid battery (traction battery)
air intake vent and filter” in the “Maintenance
and care” section of the Owner's Manual
for cleaning procedure.
Nuts and Bolts on Chassis
and Body
Retighten the seat-mounting bolts and
front/rear suspension member retaining
bolts to specified torque.

Radiator, Condenser
and/or Intercooler
Inspect for debris, corrosion and signs
of damage. Have any problem repaired
immediately by a qualified technician.