Buyer Research

2021 Toyota Avalon — Should You Buy One?

Typical asking price: $27,000–$34,000. There is 1 high-severity known issue you need to know before handing over a check.

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Kestrel Take

Twenty-one complaints, and twelve of them are the same sentence: Toyota recalled the passenger-seat airbag sensor in December 2023 and then could not supply the part for well over a year, so owners were driving with a passenger airbag that might not fire and no date for a fix. That is the 2021 Avalon's record in one line — a supply problem more than a car problem, but one you inherit if the VIN still shows 23V865 open. A second recall replaces the steering column for damaged crash pins. Beyond the recalls the record is four engine reports (one low-oil-pressure failure on the interstate, one stall) and a cruise control that quits with a radar message. Same 3.5L V6 and eight-speed as the 2019–2020, so drive it cold in traffic and feel the shifts. With both recalls actually performed — and you must see proof, not a promise — this is a quiet, roomy car that has given few owners cause to write in, which is all a thin record can say.

What we checked

Reconciled against public records, 2026-09-25

NHTSA holds 21 owner complaints for the 2021 Toyota Avalon, and 2 recall campaigns.

A big number here usually means a lot of these were sold, not that it is a bad vehicle — popular models collect more complaints for the same rate of trouble. So the total on its own says little. What is worth reading is the shape of it. 57% of them are about one thing — airbags. That much concentration is a genuine pattern rather than background noise, and it is the first thing to check on any example you look at.

2 recall campaigns cover this model year. Recalls are repaired free, for any owner, with no time limit on most safety campaigns — but only if someone books it in. Ask the seller to show it was done, or have any dealer check the VIN; it takes them a couple of minutes and costs nothing.

Counts come from the NHTSA complaint and recall database — free, public, and worth checking yourself.

Known Issues for the 2021 Toyota Avalon

Ranked by wallet impact. These are documented, recurring problems — not freak accidents. How we decide that.

Passenger airbag seat sensor recall with a year-plus parts wait; steering column crash-pin recallHigh — wallet impact

Recall 23V865: a short circuit can develop in the front passenger Occupant Classification Sensor so the airbag will not deploy for that seat. Interim letters went out in February 2024 and the remedy lagged badly — owner after owner on this record called the dealer through 2024 and 2025 and was told the part was not available, one saying they were scared to drive it. One car also stopped registering the rear seats and chimed for a phantom middle-seat passenger, which reads like the same sensor family. Recall 20V734 is separate: the steering column's breakaway pins may have been damaged in production, and the fix is a new column. Run the VIN, ask for the repair order for both, and if 23V865 is still open, either wait for the part or price the car as one you cannot carry a passenger in.

Repair cost: $0 with the recall — verify it was performed

Source: NHTSA complaints filed under airbags (12); 2 NHTSA recall campaigns on this model year.

Engine died from low oil pressure on the interstate; a stall at 35 mph; a warning-light cascadeMedium

Four engine complaints, each different. The worst is a 2021 Avalon whose engine failed without warning on a busy interstate and was diagnosed with low oil pressure that starved the top end — a single report, but a total-engine bill if it happens. Another stalled at 35 mph with no lights and restarted fine. A hybrid had every instrument-panel light come on and went to the dealer eight or nine times for moisture in the brake sensor harness before a crash. One more had engine and transmission warnings at 50 mph. None of this is a pattern on four reports; it is a checklist. Pull the dipstick and look at the oil level and color, ask when it was last changed and by whom, scan for stored codes, and drive it long enough to get fully warm.

Repair cost (estimate): $100–$600 for diagnosis and a harness or sensor; $7,000–$10,000 if an engine is lost to oil starvation — about 33% of what this car is typically worth

Source: NHTSA complaints filed under the engine (4).

Cruise control quits with a radar message; brake switch and harness chased for the causeMedium

Three complaints. One owner's cruise control stopped at interstate speed with the whole dashboard lit; the dealer fitted a brake light switch, which did not fix it, then quoted a wiring harness, bringing the total toward $400. Another simply got a radar cruise control not available message and lost the feature. The third is the 35 mph stall from the engine cluster, filed twice. The stop-lamp switch is a cheap, common culprit on Toyotas of this era and a first thing to check. Set the adaptive cruise on the test drive and let it follow traffic for ten minutes; a dropout or a radar warning is a repair to price before you sign.

Repair cost (estimate): $100–$600

Source: NHTSA complaints filed under throttle and cruise control (3).

Walk-Away Red Flags

✗Recall 23V865 or 20V734 still open on the NHTSA VIN lookup
✗Passenger airbag OFF light with an adult seated, or a seat-belt chime for an empty seat
✗Low or dark oil on the dipstick, or a seller who cannot say when it was last changed
✗Radar cruise control not available message, or cruise dropping out on the highway
✗Any warning-light cascade during the test drive

Good Signs

✓Both recalls shown complete on the NHTSA VIN lookup with a dealer repair order
✓Passenger airbag ON indicator lit with an adult in the seat
✓Oil changes on Toyota's schedule with receipts, oil clean and at the full mark
✓Adaptive cruise holding a gap in traffic for ten minutes without a dropout
✓Smooth cold shifts through a dozen stop-and-go cycles