2021 TOYOTA 4RUNNER steering

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
Lubricate propeller shaft
Replace cabin air filter
Replace engine air filter
Replace engine oil and oil filter2
Replace spark plugs5
Re-torque propeller shaft bolt
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
6
_Drive belts
_ Drive shaft boots (4WD)
_ Engine coolant
7
_Exhaust pipes and mountings
_ Front differential oil (4WD)

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 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 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.
_
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)
19-TCS-14198 MY 21 WMG 4RUNNER 2.indd 537/30/20 5:00 PM

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 wear. 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.
19-TCS-14198 MY 21 WMG 4RUNNER 2.indd 547/30/20 5:00 PM

57Maintenance Log
MAINTENANCE
EXPLANATION OF MAINTENANCE ITEMS
Radiator and Condenser
Inspect for debris, corrosion and signs
of damage. Have any problem repaired
immediately by a qualied technician.
Spark Plugs
Replace at specied intervals. Install new
plugs of the same type as originally
equipped. A qualied technician should
perform this operation.
Steering Gear
Inspect for signs of leakage. If you
discover any leakage, have it repaired
immediately by a qualied 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 qualied 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.
Transfer Case Oil
Inspect or replace at specied intervals. When
performing inspections, check for signs of
leakage. If you discover any leakage, have it
repaired by a qualied technician immediately.
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.
19-TCS-14198 MY 21 WMG 4RUNNER 2.indd 577/30/20 5:00 PM