check engine TOYOTA SIENNA 2020 Warranties & Maintenance Guides (in English)

47Maintenance Log
MAINTENANCE LOG
MAINTENANCE
75,000 miles or 90 months
Add Toyota EFI Tank Additive or equivalent (Hawaii, Puerto Rico, Saipan and American Samoa only)
Check installation of driver’s floor mat
Inspect and adjust all fluid levels1
Inspect wiper blades
NOTE: If 0W-20 oil WAS NOT used at the last oil change, replace engine oil and oil filter.2
Inspect the following: _Ball joints and dust covers _ Exhaust pipes and mountings _Brake lines and hoses _ Radiator and condenser _Cabin air filter _ Rear differential oil (AWD) _Drive belts _ Steering gear _Drive shaft boots _ Steering linkage and boots _Engine coolant5 _ Transfer case oil (AWD)
NOTE: Driving in heavy traffic, on dirt roads or in urban, dusty or desert areas may shorten the life of the cabin air filter. Replacement may be needed if you notice reduced air flow from the air conditioner and heater or if the windows fog easily when you use the “Fresh” mode. Consult your dealer if any of these conditions occur.
Additional Maintenance Items for Special Operating Conditions3
Driving on dirt roads or dusty roads:Inspect engine air filter
Replace engine oil and oil filter2
Tighten nuts and bolts on chassis and body Driving while towing, using a car-top carrier, or heavy vehicle loading:6
Replace engine oil and oil filter2
Replace rear differential oil (AWD)
Replace transfer case oil (AWD)
Tighten nuts and bolts on chassis and body
Repeated trips of less than five miles in temperatures below 32°F / 0°C:Replace engine oil and oil filter2
Extensive idling and/or low speed driving for a long distance such as police, taxi or door-to-door delivery use:Replace engine oil and oil filter2
Dealer Service verification:
Date:Mileage:
re-torque drive shaft nut (aWD)
re-torque propeller shaft bolt (aWD)
rotate tires
visually inspect brake linings/drums and brake pads/discs
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 (

48Maintenance Log
MAINTENANCE LOG
MAINTENANCE
80,000 miles or 96 months
Add Toyota EFI Tank Additive or equivalent (Hawaii, Puerto Rico, Saipan and American Samoa only)
Check installation of driver’s floor mat
Inspect and adjust all fluid levels1
Inspect wiper blades
Replace engine oil and oil filter2
Rotate tires
Visually inspect brake linings/drums and brake pads/discs
Additional Maintenance Items for Special Operating Conditions3
Driving on dirt roads or dusty roads:Inspect ball joints and dust covers
Inspect drive shaft boots
Inspect engine air filter
Inspect steering linkage and boots
Re-torque drive shaft nut (AWD)
Re-torque propeller shaft bolt (AWD)4
Tighten nuts and bolts on chassis and body
Driving while towing, using a car-top carrier, or heavy vehicle loading:7
Re-torque propeller shaft bolt (AWD)4
Tighten nuts and bolts on chassis and body

Dealer Service verification:
Date:Mileage:
85,000 miles or 102 months
Add Toyota EFI Tank Additive or equivalent (Hawaii, Puerto Rico, Saipan and American Samoa only)
Check installation of driver’s floor mat
Inspect and adjust all fluid levels1
Inspect wiper blades
Rotate tires
Visually inspect brake linings/drums and brake pads/discs
NOTE: If 0W-20 oil WAS NOT used at the last oil change, replace engine oil and oil filter.2
Additional Maintenance Items for Special Operating Conditions3
Driving on dirt roads or dusty roads:Inspect ball joints and dust covers
Inspect drive shaft boots
Inspect engine air filter
Inspect steering linkage and boots
Re-torque drive shaft nut (AWD)
Re-torque propeller shaft bolt (AWD)4
Replace engine oil and oil filter2
Tighten nuts and bolts on chassis and body
Driving while towing, using a car-top carrier, or heavy vehicle loading:7
Re-torque propeller shaft bolt (AWD)4
Replace engine oil and oil filter2
Tighten nuts and bolts on chassis and body
Repeated trips of less than five miles in temperatures below 32°F / 0°C:Replace engine oil and oil filter2
Extensive idling and/or low speed driving for a long distance such as police, taxi or door-to-door delivery use:Replace engine oil and oil filter2

Dealer Service verification:
Date:Mileage:

49Maintenance Log
MAINTENANCE LOG
MAINTENANCE
90,000 miles or 108 months
Add Toyota EFI Tank Additive or equivalent (Hawaii, Puerto Rico, Saipan and American Samoa only)
Check installation of driver’s floor mat
Inspect and adjust all fluid levels1
Inspect wiper blades
Re-torque drive shaft nut (AWD)
Re-torque propeller shaft bolt (AWD)
Replace cabin air filter
Replace engine air filter
Replace engine oil and oil filter2
Rotate tires
Inspect the following: _ Automatic transmission fluid cooler hoses and connections _ Automatic transmission for signs of leakage _Ball joints and dust covers _Brake lines and hoses _ Brake linings/drums and brake pads/discs5
_Drive belts _Drive shaft boots
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 rear differential oil (AWD)
Replace transfer case oil (AWD)
Tighten nuts and bolts on chassis and body
Dealer Service verification:
Date:Mileage:
_engine coolant6
_exhaust pipes and mountings _ fuel lines and connections, fuel tank band and fuel tank vapor vent system hoses _fuel tank cap gasket _radiator and condenser _rear differential oil (aWD) _Steering gear _Steering linkage and boots _transfer case oil (aWD)
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 (

50Maintenance Log
MAINTENANCE LOG
MAINTENANCE
95,000 miles or 114 months
Add Toyota EFI Tank Additive or equivalent (Hawaii, Puerto Rico, Saipan and American Samoa only)
Check installation of driver’s floor mat
Inspect and adjust all fluid levels1
Inspect wiper blades
Rotate tires
Visually inspect brake linings/drums and brake pads/discs
NOTE: If 0W-20 oil WAS NOT used at the last oil change, replace engine oil and oil filter.2
Additional Maintenance Items for Special Operating Conditions3
Driving on dirt roads or dusty roads:Inspect ball joints and dust covers
Inspect drive shaft boots
Inspect engine air filter
Inspect steering linkage and boots
Re-torque drive shaft nut (AWD)
Re-torque propeller shaft bolt (AWD)4
Replace engine oil and oil filter2
Tighten nuts and bolts on chassis and body
Driving while towing, using a car-top carrier, or heavy vehicle loading:7
Re-torque propeller shaft bolt (AWD)4
Replace engine oil and oil filter2
Tighten nuts and bolts on chassis and body
Repeated trips of less than five miles in temperatures below 32°F / 0°C:Replace engine oil and oil filter2
Extensive idling and/or low speed driving for a long distance such as police, taxi or door-to-door delivery use:Replace engine oil and oil filter2


Dealer Service verification:
Date:Mileage:
100,000 miles or 120 months
Add Toyota EFI Tank Additive or equivalent (Hawaii, Puerto Rico, Saipan and American Samoa only)
Check installation of driver’s floor mat
Inspect and adjust all fluid levels1
Inspect wiper blades
Replace engine coolant5
Replace engine oil and oil filter2
Rotate tires
Visually inspect brake linings/drums and brake pads/discs
Additional Maintenance Items for Special Operating Conditions3
Driving on dirt roads or dusty roads:Inspect ball joints and dust covers
Inspect drive shaft boots
Inspect engine air filter
Inspect steering linkage and boots
Re-torque drive shaft nut (AWD)
Re-torque propeller shaft bolt (AWD)4
Tighten nuts and bolts on chassis and body
Driving while towing, using a car-top carrier, or heavy vehicle loading:7
Re-torque propeller shaft bolt (AWD)4
Tighten nuts and bolts on chassis and body

Dealer Service verification:
Date:Mileage:

51Maintenance Log
MAINTENANCE LOG
MAINTENANCE
105,000 miles or 126 months
Add Toyota EFI Tank Additive or equivalent (Hawaii, Puerto Rico, Saipan and American Samoa only)
Check installation of driver’s floor mat
Inspect and adjust all fluid levels1
Inspect wiper blades
NOTE: If 0W-20 oil WAS NOT used at the last oil change, replace engine oil and oil filter.2
Inspect the following: _Ball joints and dust covers _ Exhaust pipes and mountings _Brake lines and hoses _ Radiator and condenser _Cabin air filter _ Rear differential oil (AWD) _Drive belts _ Steering gear _Drive shaft boots _ Steering linkage and boots _Engine coolant6 _ Transfer case oil (AWD)
NOTE: Driving in heavy traffic, on dirt roads or in urban, dusty or desert areas may shorten the life of the cabin air filter. Replacement may be needed if you notice reduced air flow from the air conditioner and heater or if the windows fog easily when you use the “Fresh” mode. Consult your dealer if any of these conditions occur.
Additional Maintenance Items for Special Operating Conditions3
Driving on dirt roads or dusty roads:Inspect engine air filter
Replace engine oil and oil filter2
Tighten nuts and bolts on chassis and body
Driving while towing, using a car-top carrier, or heavy vehicle loading:7
Replace engine oil and oil filter2
Replace rear differential oil (AWD)
Replace transfer case oil (AWD)
Tighten nuts and bolts on chassis and body
Repeated trips of less than five miles in temperatures below 32°F / 0°C:Replace engine oil and oil filter2
Extensive idling and/or low speed driving for a long distance such as police, taxi or door-to-door delivery use:
Replace engine oil and oil filter2
Dealer Service verification:
Date:Mileage:
re-torque drive shaft nut (aWD)
re-torque propeller shaft bolt (aWD)
rotate tires
visually inspect brake linings/drums and brake pads/discs
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 (

52Maintenance Log
MAINTENANCE LOG
MAINTENANCE
110,000 miles or 132 months
Add Toyota EFI Tank Additive or equivalent (Hawaii, Puerto Rico, Saipan and American Samoa only)
Check installation of driver’s floor mat
Inspect and adjust all fluid levels1
Inspect wiper blades
Replace engine oil and oil filter2
Rotate tires
Visually inspect brake linings/drums and brake pads/discs
Additional Maintenance Items for Special Operating Conditions3
Driving on dirt roads or dusty roads:Inspect ball joints and dust covers
Inspect drive shaft boots
Inspect engine air filter
Inspect steering linkage and boots
Re-torque drive shaft nut (AWD)
Re-torque propeller shaft bolt (AWD)4
Tighten nuts and bolts on chassis and body
Driving while towing, using a car-top carrier, or heavy vehicle loading:8
Re-torque propeller shaft bolt (AWD)4
Tighten nuts and bolts on chassis and body
Dealer Service verification:
Date:Mileage:
115,000 miles or 138 months
Add Toyota EFI Tank Additive or equivalent (Hawaii, Puerto Rico, Saipan and American Samoa only)
Check installation of driver’s floor mat
Inspect and adjust all fluid levels1
Inspect wiper blades
Rotate tires
Visually inspect brake linings/drums and brake pads/discs
NOTE: If 0W-20 oil WAS NOT used at the last oil change, replace engine oil and oil filter.2
Additional Maintenance Items for Special Operating Conditions3
Driving on dirt roads or dusty roads:Inspect ball joints and dust covers
Inspect drive shaft boots
Inspect engine air filter
Inspect steering linkage and boots
Re-torque drive shaft nut (AWD)
Re-torque propeller shaft bolt (AWD)4
Replace engine oil and oil filter2
Tighten nuts and bolts on chassis and body
Driving while towing, using a car-top carrier, or heavy vehicle loading:8
Re-torque propeller shaft bolt (AWD)4
Replace engine oil and oil filter2
Tighten nuts and bolts on chassis and body
Repeated trips of less than five miles in temperatures below 32°F / 0°C:Replace engine oil and oil filter2
Extensive idling and/or low speed driving for a long distance such as police, taxi or door-to-door delivery use:Replace engine oil and oil filter2
Dealer Service verification:
Date:Mileage:

53Maintenance Log
MAINTENANCE LOG
MAINTENANCE
120,000 miles or 144 months
Add Toyota EFI Tank Additive or equivalent (Hawaii, Puerto Rico, Saipan and American Samoa only)
Check installation of driver’s floor mat
Inspect and adjust all fluid levels1
Inspect wiper blades
Re-torque drive shaft nut (AWD)
Inspect the following: _ Automatic transmission fluid cooler hoses and connections _ Automatic transmission for signs of leakage _Ball joints and dust covers _Brake lines and hoses _ Brake linings/drums and brake pads/discs6
_Drive belts _Drive shaft boots
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:8
Replace automatic transmission fluid
Replace rear differential oil (AWD)
Replace transfer case 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:
Replace automatic transmission fluid
Dealer Service verification:
Date:Mileage:
_engine coolant7
_exhaust pipes and mountings _ fuel lines and connections, fuel tank band and fuel tank vapor vent system hoses _fuel tank cap gasket _radiator and condenser _rear differential oil (aWD) _Steering gear _Steering linkage and boots _transfer case oil (aWD)
re-torque propeller shaft bolt (aWD)
replace cabin air filter
replace engine air filter
replace engine oil and oil filter2
replace spark plugs5
replace vacuum pump for brake booster
rotate tires
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 (

55Maintenance Log
MAINTENANCE
Drive Shaft Boots
Check the drive shaft boots and clamps for
cracks, deterioration and damage. Replace
any deteriorated or damaged parts and, if
necessary, repack the grease. AWD models
also require periodic inspection of the drive
shaft nut for proper torque. A qualified
technician should perform these operations.
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 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
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-20 motor oil. For
VEHICLES CERTIFIED FOR 0W-20 motor
oil, the oil change interval is 10,000 miles
or 12 months IF 0W-20 MOTOR OIL IS
BEING USED. If 0W-20 is not available,
5W-20 mineral oil may be used. However,
it must be replaced at a 5,000-miles or
six-month INTERVAL with 0W-20 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.
Nuts and Bolts on Chassis
and Body
Retighten the seat-mounting bolts and
front /rear suspension member retaining
bolts to specified torque.
Propeller Shaft
Re-torque the propeller shaft bolt. Only
a qualified technician should perform
this operation.
Radiator and Condenser
Inspect for debris, corrosion and signs
of damage. Have any problem repaired
immediately by a qualified technician.
Rear Differential Oil
Inspect or replace at specified intervals.
When performing inspections, check each
component for signs of leakage. If you
discover any leakage, have it repaired
by a qualified technician immediately.
EXPLANATION OF MAINTENANCE ITEMS