spark plugs replace TOYOTA PRIUS PRIME 2020 Warranties & Maintenance Guides (in English)
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Gradual Capacity Reduction  
of Traction Battery  
(Lithium-ion Battery)
Lithium-ion battery capacity (the ability to 
hold a charge) gradually reduces with time 
and use. This is a natural characteristic of 
lithium-ion batteries. The extent at which 
capacity is reduced changes drastically 
depending on the environment (ambient 
temperature, etc.) and usage conditions such 
as how the vehicle is driven and how the 
lithium-ion battery is charged. Reduction of 
lithium-ion battery capacity is NOT  covered 
under warranty. In order to lessen the 
possibility of capacity reduction, follow the 
directions listed in the Owner’s Manual under 
“Capacity Reduction of the Hybrid Battery 
( Traction Battery).”
Maintenance Expense
Normal maintenance services such as:
• Engine tune-ups
• Replacement of fluids and filters
•  Lubrication
• Cleaning and polishing
• Replacement of spark plugs and fuses
•  
Replacement of worn wiper blades, brake 
pads/linings and clutch linings
Vehicles with Altered Odometer 
Failure of a vehicle on which the odometer 
has been altered so that actual vehicle 
mileage cannot be readily determined.
 
 
Salvage or Total-Loss Vehicles 
Any vehicle that has ever been issued a 
“salvage” title or similar title under any  
state’s law, or has ever been declared a  
“total loss” or equivalent by a financial  
institution or insurer, such as by payment  
for a claim in lieu of repairs because the  
cost of repairs exceeded the cash value of  
the vehicle. This exclusion does not apply to  
the emission control warranties, including  
Emission Control Warranty Enhancements 
or any open Safety Recalls/SSCs/LSCs.
Incidental Damages
Incidental or consequential damages 
associated with a vehicle failure. Such 
damages include but are not limited to 
inconvenience; the cost of transportation, 
telephone calls and lodging; the loss of 
personal or commercial property; and the   
loss of pay or revenue.
Disclaimer of Extra   
Expenses and Damages
The performance of necessary repairs 
and adjustments is the exclusive remedy 
under this warranty or any implied 
warranty. Toyota does not authorize 
any person to create for it any other 
obligation or liability in connection with 
this vehicle. Toyota shall not be liable 
for incidental or consequential damages 
resulting from breach of this written 
warranty or any implied warranty. Any 
implied warranty of merchantability or 
fitness for a particular purpose is limited 
to the duration of this written warranty,   
except in states where this limitation   
is not allowed.
NEW VEHICLE LIMITED WARRANTY
Your Warranties in Detail 
WARRANTY  
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55
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 
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
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 PZEV 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 inf ormation.
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
 
_
Steering gear
 
_
Steering linkage and boots
Dealer Service verification:
D
ate:
Mileage:
Maintenance Log 
MAINTENANCE LOG
MAINTENANCE  
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58
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 mineral 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.
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. 
Spark Plugs
Replace at specified intervals. Install new 
plugs of the same type as originally   
equipped. A qualified technician should 
perform this operation.
Steering Gear
Inspect for signs of leakage. If you  
discover any leakage, have it repaired 
immediately by a qualified technician. 
Maintenance Log 
MAINTENANCE