2021 Toyota Avalon

Vehicle Specs & Maintenance Data

Engine Size
Engine
3.5L V6
Oil Type & Capacity
0W-20 Full Synthetic (6.2 qts)
Transmission
Automatic (S8)
Wheel Torque
76
ft-lbs

The 2021 Toyota Avalon maintenance specs on this page cover the key fluids, torque values, and wear items you need for routine service. Use these numbers as a quick reference when performing oil changes, tire rotations, brake jobs, and other scheduled maintenance on your Toyota Avalon.

For oil changes, the 2021 Toyota Avalon takes 0W-20 Full Synthetic motor oil with a capacity of 6.2 quarts. Brake fluid type is DOT 3, the recommended coolant is Pink Long Life Coolant (OAT), and transmission fluid is ATF WS. Always use the manufacturer-recommended fluids to maintain warranty coverage and engine longevity.

When mounting wheels on the Toyota Avalon, torque the lug nuts to 76 ft-lbs using a calibrated torque wrench. Over- or under-torquing can lead to warped brake rotors or loose wheels. Re-torque after 50 to 100 miles on newly installed wheels.

Owners of the 2021 Toyota Avalon have reported 5 common issues including "Transmission Harsh Shifting (8-Speed Direct Shift)", "Dashboard Windshield Reflection" and "Electric Water Pump Failure (A25A Engine)". Scroll down to the Diagnostics tab for detailed descriptions, solutions, and estimated repair costs.

Specifications on this page are compiled from multiple publicly available sources including manufacturer documentation, NHTSA data, and automotive databases. Always cross-reference with your owner's manual or official factory documentation before purchasing parts or performing any service.

The 2021 Toyota Avalon uses 0W-20 Full Synthetic motor oil (6.2 qt capacity), requires lug nuts torqued to 76 ft-lbs, takes DOT 3 brake fluid.

2021 Toyota Avalon Specifications
Motor Oil0W-20 Full Synthetic
Oil Capacity6.2 qt
Lug Nut Torque76 ft-lbs
Brake FluidDOT 3
CoolantPink Long Life Coolant (OAT)
Transmission FluidATF WS
Transmission Fluid
Fluid Type
ATF WS
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Coolant
Fluid Type
Pink Long Life Coolant (OAT)
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Brake Fluid
Fluid Type
DOT 3
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Washer Fluid
Windshield
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Manufacturer-recommended maintenance schedule for the 2021 Toyota Avalon. Always verify intervals against your owner's manual.

Service Item
Interval
Engine Oil & Filter
10,000 mi / 12 mo
0W-20 synthetic, 6.4 qt (3.5L V6)
Tire Rotation
5,000 mi / 6 mo
Rotate every 5,000 mi
Cabin Air Filter
20,000 mi / 24 mo
Located behind glove box
Engine Air Filter
40,000 mi / 48 mo
Inspect at 20,000 mi
Brake Fluid
30,000 mi / 36 mo
DOT 3
Transmission Fluid
60,000 mi
6-speed automatic; inspect at 30,000 mi
Coolant
100,000 mi
Toyota SLLC; then every 50,000 mi
Spark Plugs
120,000 mi
Iridium-tipped
Serpentine Belt
75,000 mi
Inspect at 60,000 mi
Battery
60 mo
Inspect annually
DTC Code Lookup

Enter a diagnostic trouble code to see causes, symptoms, and fixes for the 2021 Toyota Avalon.

Common problems reported by 2021 Toyota Avalon owners, with recommended fixes and estimated repair costs.

1

Transmission Harsh Shifting (8-Speed Direct Shift)

The 8-speed Direct Shift automatic transmission in the 2019 Avalon can exhibit harsh or delayed shifts, particularly between 1st and 2nd gear at low speeds. Owners describe a noticeable lurch or clunk during light acceleration and deceleration in stop-and-go traffic. Cold weather tends to exaggerate the behavior.

Solution

Toyota released multiple TCM software updates to refine shift logic and torque converter lockup timing. Visit the dealer for the latest transmission calibration. TSB 0035-19 addresses harsh low-speed shifting on 2019+ Avalon models. A transmission fluid drain and refill with Toyota WS fluid may also improve shift quality.

Est. Cost: $0 for software update; $150 - $250 for fluid service
2

Dashboard Windshield Reflection

The dashboard surface produces a strong glare that reflects onto the windshield, significantly reducing forward visibility in bright sunlight. The reflection is especially distracting with a light-colored dashboard and can make daytime driving fatiguing and potentially unsafe.

Solution

Toyota has not issued a formal fix for this design issue. Owners commonly purchase a vehicle-specific dashboard cover or non-reflective mat to mitigate the glare. Polarized sunglasses also help. Some owners have had the dealer apply an anti-glare vinyl wrap on the dashboard top surface.

Est. Cost: $25 - $70 for aftermarket dashboard cover
3

Electric Water Pump Failure (A25A Engine)

The electric water pump on the 2.5L A25A-FKS engine can leak or fail prematurely, resulting in coolant loss and engine overheating. Symptoms include a low-coolant warning, visible coolant around the water pump area, and in severe cases the engine temperature gauge rising rapidly. The failure is caused by an internal seal degradation.

Solution

Replace the electric water pump assembly. Toyota addressed this in TSB T-SB-0087-21 for A25A engines with DTCs P26CA14 and P26CA31. This repair is covered under the powertrain warranty (5 years/60,000 miles). Have coolant level checked regularly at service intervals.

Est. Cost: $0 under warranty; $400 - $800 if out of warranty
4

Infotainment System Lag and Connectivity Issues

The Entune 3.0 infotainment system can experience sluggish response times, screen freezes, and intermittent Apple CarPlay or Android Auto disconnections. Bluetooth audio may cut out or develop a noticeable delay. Some owners report the system failing to boot after starting the vehicle, requiring a manual reboot.

Solution

Perform a hard reset by holding the power button for 10-15 seconds. Update the Entune system to the latest firmware at the dealer. Toyota released over-the-air and dealer-applied software updates throughout 2019-2020 that improved system responsiveness. If the issues persist, the head unit may need replacement.

Est. Cost: $0 for software update; $600 - $1,500 for head unit replacement
5

Front Brake Pulsation and Premature Rotor Warping

Some 2019 Avalon owners report brake pulsation and vibration felt through the steering wheel during moderate braking, beginning as early as 15,000-20,000 miles. The issue is caused by uneven rotor thickness variation (lateral runout) from the factory or from improper lug nut torque during tire rotations.

Solution

Have the front rotors measured for lateral runout and thickness variation. Resurfacing is possible if the rotors are within minimum thickness specs, but replacement with quality aftermarket or OEM rotors is preferred. Always torque lug nuts to 76 ft-lbs with a torque wrench, not an impact gun, to prevent future warping.

Est. Cost: $250 - $500 for rotor and pad replacement (both front)

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Avalon — Other Model Years
2022202020192018201720162015201420132012
See Also
2021 Toyota Avalon Lug Nut TorqueBest Oil for 2021 Toyota AvalonAll Vehicles Using 0W-20 Full Synthetic OilAll Vehicles Using DOT 3Oil Change Guide: 2021 Toyota AvalonWiper Replacement: 2021 Toyota Avalon