2021 TOYOTA SIENNA HYBRID Warranties & Maintenance Guides (in English)

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
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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-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-mile 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 “Hybrid
Battery ( Traction Battery) Air Intake Vent” 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.
EXPLANATION OF MAINTENANCE ITEMS
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57Maintenance Log
MAINTENANCE
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.
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.
Steering Linkage and Boots
With the vehicle stopped, check for
excessive freeplay in the steering wheel.
Inspect the linkage for bending and
damage and the dust boots for
deterioration, cracks and damage. Replace
any damaged parts. A qualified technician
should perform these operations.
Tire Rotation
Tires should be rotated according to the
instructions in the Owner’s Manual. When
rotating tires, check for damage and
uneven wear. Replace if necessary.
Wiper Blades
The wiper blades should not show any
signs of cracking, splitting, wear,
contamination or deformation. The wiper
blades should clear the windshield without
streaking or skipping.
EXPLANATION OF MAINTENANCE ITEMS
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58Maintenance Log
MAINTENANCE
VEHICLE IDENTIFICATION
Model
In-service date
Selling dealership
Key number
Body style
Mileage at delivery
Selling dealership phone number
Vehicle Identification Number
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59Maintenance Log
NOTES
MAINTENANCE
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60Maintenance Log
NOTES
MAINTENANCE
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61Maintenance Log
NOTES
MAINTENANCE
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62Maintenance Log
NOTES
MAINTENANCE
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