VinCanary

Reliability report · 2021 Nissan Sentra · Updated July 2026

Complaints drop by more than a third against the 2020, and the remaining story is two free fixes — the tie rod and a driver-assist reprogram.

The 2021 is where the redesigned Sentra starts to settle. Complaints fall to 129, and the two clusters that dominate — steering and driver-assist false alarms — both have a free fix attached rather than a bill. The transmission barely registers: powertrain tags appear on a handful of the recent filings, against roughly two-thirds on the 2016.

The catch is that a free fix only helps if it has actually been performed. The tie-rod campaign was issued twice: 21V461 in 2021, then 23V581 in 2023, which "replaces and expands" it across 2020–2022 and states that cars already repaired under the earlier campaign must have the newer remedy completed. Owner letters for the second one were not mailed until 27 November 2024, and owners in the federal file describe waiting over a year for parts. So on a 2021 the question is not whether a recall exists but which one was done, and when.

Evidence: 129 NHTSA complaints · 3 recall campaigns · 5 mechanic & forum sources

Canary status

Chirping

What that means: 129 federal complaints, down from 204 on the 2020 and well under half the worst years of the previous body. Three recalls, all free, and the two loudest clusters — steering and false automatic braking — both have a no-cost remedy behind them. What is left after those is largely electrical annoyance rather than expense.

CalmChirpingSquawkingFainted

129

Federal complaints

3

Recall campaigns

$884.05

Unrelated dealer repair quote in the same file

$0

Both recall remedies

Known issues

Ranked by the cost of ignoring them. Every claim carries its source.

Bent tie rods — check which recall was done, not whether one was

major

A tie rod is the link that carries your steering input from the rack to the front wheel. On these cars one can bend and eventually break, which means losing steering control. Nissan recalled it twice. 21V461, issued June 2021 for 2020–2021 Sentras, had dealers inspect and replace a rod only where they found one bent — Nissan's code PM985, owner letters mailed 5 August 2021. Then 23V581, issued August 2023 for 2020–2022 Sentras and 236,238 vehicles, "replaces and expands recall number 21V-461" and adds that "vehicles previously repaired under 21V-461 will need to have the new remedy completed" — both rods replaced with a redesigned part, Nissan code R23B3, owner letters mailed 27 November 2024. Steering is the largest single cluster in the 2021 complaint file and this is why. The symptoms are easy to catch on a test drive: a steering wheel that sits off centre when the car is going straight, a shake or vibration at motorway speed, clicking while turning, and excessive play at the wheel. Owners also report the knock-on cost — one replaced two tyres with irregular sidewall wear and paid for an alignment on top of the free recall work.

What to check

Pink and cleanServiced. Proceed.

Dark brownDamage underway.

Both recall remedies

$0

Knock-on cost: two tyres plus alignment, one owner

$689.45

Unrelated dealer repair quote in the same file

$884.05

Sources: NHTSA complaint database, 2021 Nissan Sentra (129 complaints) · NHTSA recalls and Nissan manufacturer communications (tie-rod recall bulletins, AEB false-activation and lane-camera bulletins, CVT service-part bulletins, recall documents)

False automatic emergency braking — a free reprogram nobody writes to you aboutmoderate

  • 2.0L four-cylinder

Driver-assist complaints are effectively tied with steering as the 2021's loudest cluster. AEB is automatic emergency braking, the system that applies the brakes for you if it believes a collision is imminent; FCW is the forward collision warning that fires first. Owners report the car braking hard or alarming for things that are not in the way. Nissan's bulletin "FALSE ACTIVATION OF AEB OR FCW" covers 2020–2022 Sentras built on or before 10 March 2022 and describes exactly this — a false activation or unexpected braking with no fault codes stored — with the remedy being to check and reprogram the driver-assist control module. Related bulletins cover the AEB warning light blinking and the lane camera overheating when the cabin gets very hot. These are TSBs — Technical Service Bulletins, the repair instructions carmakers send dealers — not recalls, which means they will never show up on a VIN recall lookup and no letter will arrive. You have to ask for them by name.

Sources: NHTSA complaint database, 2021 Nissan Sentra (129 complaints) · NHTSA recalls and Nissan manufacturer communications (tie-rod recall bulletins, AEB false-activation and lane-camera bulletins, CVT service-part bulletins, recall documents)

$0

Driver-assist module reprogram under warranty

Rear-view camera harness damage — recall 23V628moderate

Recall 23V628 covers 2020–2021 Sentras and 2019–2021 Altimas where damage to the rear-view camera harness distorts or kills the picture, putting the car outside the federal rear-visibility standard. Dealers inspect the camera and harness and replace as needed; where nothing is damaged, they apply protective tape and reroute the harness so it stops chafing. Free, Nissan code R23C3, owner letters expected from 19 October 2023. Because part of the remedy is preventive, a working camera is not evidence the recall was done.

Sources: NHTSA complaint database, 2021 Nissan Sentra (129 complaints) · NHTSA recalls and Nissan manufacturer communications (tie-rod recall bulletins, AEB false-activation and lane-camera bulletins, CVT service-part bulletins, recall documents)

$0

Recall remedy

Electrical niggles, not electrical disastersminor

Electrical system is the third-heavy tag on the 2021, but the content is different from the previous generation's. Rather than stalling and no-starts, this is screens, cameras, warning lights and switchgear. It overlaps heavily with the driver-assist group, which is expected: a weak battery or a poor earth is a well-documented cause of spurious safety-system warnings on modern Nissans, so a load test and a look at the battery terminals is the cheapest first move before anyone quotes you for a sensor. One owner in the file reports being charged $300 for a diagnostic with no coverage offered and no acknowledgement of a known issue — worth knowing before you accept a diagnostic fee on a symptom that has a published bulletin behind it.

Sources: NHTSA complaint database, 2021 Nissan Sentra (129 complaints)

$300

Dealer diagnostic charge, one owner

The transmission is quiet in the data — and completely uncoveredmoderate

  • 2.0L four-cylinder

Powertrain complaints are a small minority on the 2021, which is a genuine improvement over the previous body. But there is no warranty extension of any kind for the CVT — a continuously variable transmission, which drives the wheels through a belt between two adjustable pulleys instead of fixed gears — on any Sentra from 2020 onward. Both Nissan class-action settlements stop at model year 2019, so the base powertrain warranty was all this car ever had and on a used 2021 it is spent or nearly so. Nissan has since released a belt-and-pulley sub-assembly service kit and a special engine-support bracket that lets dealers remove the transmission without removing the engine, covering 2020–2024 cars. That is tooling you build for a component that gets serviced. A mechanic channel covering this generation puts CVT trouble at 30,000 to 80,000 miles and replacement at $3,000 to $5,000 — a transcript estimate, not a Nissan figure, but a reasonable expectation to price in.

Sources: NHTSA complaint database, 2021 Nissan Sentra (129 complaints) · NHTSA recalls and Nissan manufacturer communications (tie-rod recall bulletins, AEB false-activation and lane-camera bulletins, CVT service-part bulletins, recall documents) · Independent mechanic channel transcripts (2020–2024 Sentra 2.0-litre reliability and CVT service life)

$3,000–$5,000

CVT replacement, mechanic-channel estimate for 2020–2024 cars

The tie-rod recall was reissued as a stronger campaign — a car repaired under the first one still needs the second.
5 mechanic & owner sources

Shopping this year?

Get the printable pre-purchase checklist and an alert if this year’s recall sheet changes.

Form not loading? Open it directly →

Open recalls

Free fixes at any Nissan dealer. Run the VIN — “completed” isn’t always completed.

  1. 23V581Left and/or right tie rod may bend and break, causing loss of steering control. Interim fix inspects and replaces bent or broken rods; final remedy replaces both with redesigned parts. Replaces and expands 21V461 — cars already repaired under that campaign must be redone. 2020–2022 Sentra, 236,238 vehicles. Nissan code R23B3; owner letters mailed 27 November 2024.open
  2. 21V461Left and/or right tie rod may be bent. Free inspection and replacement as necessary (2020–2021 Sentra). Nissan code PM985; owner letters mailed 5 August 2021. Superseded by 23V581.open
  3. 23V628Rear-view camera harness damage can distort or kill the camera image, outside the federal rear-visibility standard. Free inspection and replacement, or protective tape and harness reroute (2020–2021 Sentra, 2019–2021 Altima). Nissan code R23C3.open

Have a specific one in your sights?

The VIN is on the listing. We’ll check this exact car — build, open recalls, and whether the “completed” repairs stayed fixed.

Form not loading? Open it directly →