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Head to head · Compact cars · 2021 · 2021 Honda Civic vs 2021 Hyundai Elantra

The settled last year against the fixed-up first year. The Civic asks fewer questions.

The 2021 Civic is the quietest Civic in our data — the 10th generation's final, sorted year, with oil dilution faded to a background item. The 2021 Elantra redesign fixes the engine story and finds seven new recalls in the process, led by a trio of seat-belt-pretensioner campaigns — the fixable kind, but the folder is thicker.

133 vs 155 federal complaints · 4 vs 7 recalls · 2 full reports with mechanic & forum testimony

The board

Numbers from each year’s full report
Canary status: Calm

2021 Honda Civic

The quietest Civic in our data — the settled final year of the 10th generation.

133

Federal complaints

4

Recall campaigns

$0

A/C condenser — covered to 10 years

Canary status: Chirping

2021 Hyundai Elantra

The redesign fixes the engine and finds seven new recalls — but they are the fixable kind.

155

Federal complaints

7

Recall campaigns

3

Seat-belt pretensioner campaigns to verify

Both are good cars in their cleanest form — the Civic just gets there with a shorter checklist.

See where both rank among Compact cars

Where each one bites

The signature problems, with real repair money — every fact cited in the full reports.

2021 Civic

Brake booster / master-cylinder recall carries over — 23V-458

Covered

The 2020–2021 brake recall applies to the 2021 as well: an improperly assembled tie-rod fastener could let the brake master cylinder separate from the booster and cause a loss of braking. Dealers inspect and repair the booster assembly free. It's the one recall on this quiet year with real braking consequences — confirm 23V-458 shows completed by VIN.

Sources: NHTSA complaint and recall database, 2021 Civic

Seat-sensor airbag recall — 24V-064

Covered

The front-passenger seat weight sensor can crack and short, failing to suppress or risking unintended airbag deployment. Recall 24V-064 (a phased campaign) covers the 2021 Civic hatchback among others, with a free sensor replacement; the later 26V-332 expands the same defect. Confirm by VIN which campaign applies and that it was completed.

Sources: NHTSA complaint and recall database, 2021 Civic

Oil dilution — a background item now (1.5L turbo)

minor

By the final 10th-generation year, the 1.5-liter turbo's oil-dilution reports are minimal in the federal file. The mechanism is unchanged — gasoline can thin the oil on cold-climate short trips — and 2021 is outside the software update and powertrain extension, so a turbo car relies on its maintenance record. A quick cold-dipstick check (gasoline smell, over-full level) is still worth doing. The 2.0-liter engine does not have this issue.

Sources: NHTSA complaint and recall database, 2021 Civic · Independent mechanic channel transcripts (10th-gen Civic) and Honda manufacturer-communication bulletins (A/C-condenser warranty extension)

2021 Elantra

The seat-belt pretensioner recalls — three campaigns, one live remedy

major

This looks worse in a recall list than it is, but only if you know which campaign to look for. A seat-belt pretensioner is the device that snaps the belt tight in a crash, and it works by firing a small pyrotechnic charge. On these cars it may explode on deployment rather than firing correctly, and NHTSA's stated consequence is that it could project metal fragments into the cabin and strike occupants. Hyundai issued 21V796 first, covering 2021 Elantra and Elantra HEV along with the Venue and two Genesis models, with dealers replacing the pretensioners; Hyundai's numbers were 211 and 009G. It then issued 22V218, covering 2021 and 2022 Elantras and the 2020 Accent, number 223. Both were superseded. The campaign that matters is 22V354, which expands and replaces 21V796, 22V069, 22V218 and 22V123 for Accent, Elantra and Elantra HEV vehicles: dealers secure the pretensioner with a cap, free of charge, owner letters went out on 28 August 2022, and Hyundai's number is 229. The campaign text is explicit that cars already repaired under the earlier recalls need the new remedy completed. So a service record showing 21V796 or 22V218 done is not enough — you want 22V354.

Sources: NHTSA complaints and recalls, 2021 Elantra and Elantra Hybrid (pulled 2026-07-30)

Recall 24V879 — the rearview camera

major

Hyundai is recalling certain 2021 and 2022 Santa Fe, Santa Fe HEV, Elantra and Elantra HEV vehicles, along with 2022 Elantra N and Santa Fe PHEV models, because a damaged printed circuit board may cause the rearview camera image to fail to display. That makes the car non-compliant with Federal Motor Vehicle Safety Standard number 111, the rear-visibility rule, and NHTSA's stated consequence is reduced driver visibility and increased crash risk. Dealers replace the rearview camera free of charge and owner letters were mailed on 14 January 2025. Hyundai's number is 271. Owners in the complaint file describe the failure well — a screen that appears half on and half off, or goes black, worsening with every use — and at least one reports being told the repair had no available solution. Put the car in reverse on the test drive and confirm the camera works, then check the VIN separately, because a working camera today does not mean the recall is closed.

Sources: NHTSA complaints and recalls, 2021 Elantra and Elantra Hybrid (pulled 2026-07-30)

The horn stops working — and Hyundai covers it for 10 years

moderate

This is the single most repeated complaint on the new Elantra and it has a genuinely useful answer. Hyundai's bulletin states that certain Elantra, Elantra N and Elantra Hybrid vehicles may experience an inoperable horn, and that the warranty coverage for the horn replacement under this condition has been extended to 10 years or 120,000 miles from original retail delivery or first use, whichever comes first, valid for original and subsequent owners, with instructions to install the latest design. A companion bulletin states the scope as 2021 to 2025 model year Elantra, 2022 to 2025 Elantra N and 2021 to 2025 Elantra Hybrid. The complaint file shows why it exists: owners on their second and third horn, a horn that never worked from purchase, a horn whose fuse blows every time it is replaced, and several who only discovered the fault at the moment they needed it. Press the horn on the viewing — it takes a second, and if it does not sound, that is a free repair for a decade rather than a negotiation. Note that this is a warranty extension, not a safety recall.

Sources: NHTSA manufacturer communications, Hyundai Elantra (horn warranty extension, 12V lithium battery P1BB20 bulletin, IVT damper clutch update, anti-theft 993/P32/9A5) · NHTSA complaints and recalls, 2021 Elantra and Elantra Hybrid (pulled 2026-07-30)

The tiebreakers

How to actually decide, listing by listing.

Last-year polish versus first-year fixes

  1. Civic: two recalls and a coverage check.

    The brake-booster tie-rod recall (23V-458) and seat-weight-sensor campaign (24V-064) are the closes; the A/C condenser is covered to 10 years — roughly $1,000 out of pocket only if a claim is denied. That's the whole list.

  2. Elantra: the pretensioner trio is the headline close.

    Three campaigns (21V796, 22V218, 22V354) cover pretensioners that can explode on deployment. Free fixes, and exactly the kind of recall you want stamped closed before the test drive.

  3. The Elantra's odd items are covered longer than you'd guess.

    The horn carries a 10-year coverage, the windshield-bonding recall (21V00M) and seat-recliner campaign (21V302) are free, and the rearview-camera recall (24V879) closes the list. On a hybrid, add 23V589 and the 12-volt shutdown behavior.

  4. Neither car asks an engine question — keep it that way.

    The Elantra redesign left the old oil-consumption generation behind, and the Civic's 1.5T dilution story faded by this year. Skip any individual car whose oil history argues otherwise.

Not set on 2021?

The matchup flips by year. Pick a different pair of cells and the verdict changes.

Forward is the trap on the Honda side: the 2022 Civic Squawks at 872 with the gen-11 sticky-steering recall while the 2022 Elantra holds Chirping at 150. Backward, the 2020 Elantra Squawks at 241 inside the piston-ring recall era while the 2020 Civic Chirps at 213.

Compare any two

Any two years, side by side — the numbers line up even before we’ve written the verdict. We line up years of the same model, or two rivals from the same segment in the same year.

First vehicle
Second vehicle
A last year done settling beats a first year still proving it.
The 2021 compact-car rule

Found one of each? Let the canary referee.

Paste either VIN and we’ll check its open recalls, campaign status, and build date against everything in these two reports — free.

Check a VIN — free