2021 TOYOTA TUNDRA transmission oil

51Maintenance Log
MAINTENANCE LOG
MAINTENANCE
105,000 miles or 12 6 months
Check installation of driver’s floor mat
Inspect and adjust all fluid levels1
Inspect wiper blades
Re-torque propeller shaft bolt
NOTE: 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 _
Front differential oil (4WD)
_ Cabin air filter _
Radiator and condenser
_ Drive belts _
Rear differential oil
_ Drive shaft boots (4WD)
_
Steering gear
_ Engine coolant6 _
Steering linkage and boots
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 airflow 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 front differential oil (4WD)
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:
D
ATE:
MILEAGE:
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 Toyo t a 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 Includes operating on roads which road salt has been applied. 5 Initial replacement at 100,000 miles/120 months. Replace every 50,000 miles/60 months thereafter. Refer to “Engine
Coolant” in the “Explanation of Maintenance Items” section in the back of this guide for more information.
6 Refer to “Engine 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.
Rotate tires
Visually inspect brake linings/drums
and brake pads/discs

53Maintenance Log
MAINTENANCE LOG
MAINTENANCE
120,000 miles or 14 4 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
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
6
_ Drive belts
_ Drive shaft boots (4WD)
_ Engine coolant
7
_
Exhaust pipes and mountings
Additional Maintenance Items for Special Operating Conditions3
Driving on dirt roads or dusty roads:Replace transfer case oil (4WD)
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 front differential oil (4WD)
Replace rear differential oil
Replace transfer case oil (4WD)
Tighten nuts and bolts on chassis and body
DEALER SERVICE VERIFICATION:
D
ATE:
MILEAGE:
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 Toyo t a 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 Includes operating on roads which road salt has been applied. 5 Maintenance services of spark plugs are required under the terms of the Emissions Control Warranty. 6 Inspect thickness measurement and disc runout.7 Refer to “Engine Coolant” in the “Explanation of Maintenance Items” section in the back of this guide for more information.8 Not all vehicles are designed for towing. Refer to your Vehicle Owner’s Manual for details.
_
Front differential oil (4WD)
_ Fuel lines and connections, fuel tank band
and fuel tank vapor vent system hoses
_ Fuel tank cap gasket
_ Radiator and condenser
_ Rear differential oil
_ Steering gear
_ Steering linkage and boots
_ Transfer case oil (4WD)
Replace engine oil and oil filter2
Replace spark plugs5
Re-torque propeller shaft bolt
Rotate tires

54Maintenance Log
MAINTENANCE
EXPLANATION OF MAINTENANCE ITEMS
T
he following descriptions are
provided to give you a better
understanding of the maintenance
items that should be performed on your
vehicle. The scheduled maintenance log
indicates at which mileage/time intervals
each item should be performed. Please
note that many maintenance items should
be performed only by a qualied technician.
For further information on maintenance
items you can perform yourself, see the
“Maintenance and Care” section of the
Owner’s Manual .
Automatic Transmission Fluid
Inspect or replace at specied intervals.
When performing inspections, check each
component for signs of leakage. If you
discover any leakage, have it repaired by
a qualied technician immediately.
Ball Joints and Dust Covers
Check the suspension and steering
linkage ball joints for looseness and
damage. Check all dust covers for
deterioration and damage. Replace
any deteriorated or damaged parts.
A qualied technician should perform
these operations.
Brake Lines and Hoses
Visually inspect for proper installation.
Check for chang, cracks, deterioration
and signs of leakage. Replace any
deteriorated or damaged parts. A qualied
technician should perform these operations.
Brake Linings/Drums and
Brake Pads/Discs
Check the brake linings (shoes) and
drums for scoring, burning, uid leakage,
broken parts and excessive we a r. Check
the pads for excessive wear and the discs
for runout, excessive wear and uid
leakage. Replace any deteriorated or
damaged parts. A qualied technician
should perform these operations.
Cabin Air Filter
Replace at specied intervals. Driving in
heavy trafc, on dirt roads or in urban,
desert or dusty areas may shorten lter’s
life. More frequent replacement may
be necessary.
Drive Belts
Inspect for cracks, excessive wear and
oiliness. Check the belt tension and adjust
if necessary. Replace the belts if they
are damaged.