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ProblemsByVin File / 2021-HYUNDAI-ELANTRA NHTSA data synced 13 hours ago
Hyundai

2021 Hyundai Elantra problems

The 2021 Hyundai Elantra has 129 NHTSA owner complaints and 6 active recall campaigns on file. Here's the breakdown — what's serious, what's noise, and what a working mechanic would actually do about it.

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The 2021 Hyundai Elantra has 129 NHTSA owner complaints and 6 recalls on file (U.S. federal records, as of September 2026). The most-reported system is electrical at 26 complaints (~$850 to repair). Source: NHTSA Office of Defects Investigation.

Hyundai Elantra owner complaints by model year
Model yearOwner complaintsRecalls
2018 Elantra 281 0
2019 Elantra 250 1
2020 Elantra 250 3
2021 Elantra (this page) 129 6
2022 Elantra 100 5
2023 Elantra 98 2
2024 Elantra 53 1
2021 Hyundai Elantra
Photo: Cutlass / Wikimedia Commons, CC0 · representative photo of the Hyundai Elantra
0 5 10
Reliability score
6.4 / 10

Average for the segment. Some recurring trouble spots worth knowing about.

0
Critical
6
Severe
0
Moderate
Should you avoid this 2021 Elantra?
Acceptable — with caveats

Worth owning if you verify the specific issues below before you buy.

Our read of the federal NHTSA complaint and recall record for this exact year and model — not a substitute for a pre-purchase inspection. How we score.

NHTSA crash-test safety ratings 5 / 5 overall

Overall 5/5
Frontal crash 4/5
Side crash 5/5
Rollover 5/5

Driver-assist features on the tested model: Electronic stability control: Standard · Forward collision warning: No · Lane departure warning: Standard

Source: NHTSA New Car Assessment Program — tested configuration: 2021 Hyundai Elantra 4 DR FWD. Stars rate crash protection in NHTSA's tests, not overall reliability — see the owner-complaint data below for what actually goes wrong.

Buying a used 2021 Hyundai Elantra? Check these first

Here's what this model is known to do — so you can inspect for it, price it in, or make the seller fix it before you sign.

What to inspect on this specific car

⚠ The one to take seriously: seatbelts is flagged critical on this model . Inspect it closely on a test drive.

Recalls to confirm are done

Run the VIN from the listing — 6 active recalls on this model. Recall repairs are always free.

Verdict for buyers: 6.4/10 model. The priciest documented failure is engine (~$3,100) — get the seller's service records for it or inspect closely. Otherwise an average-risk used buy at a fair price.

We tell you what this model is known for and what to inspect — a vehicle-history report tells you what this exact car has been through. Smart buyers get both.

See the full pre-purchase inspection checklist →
✦ Ask the data · AI

Ask anything about your 2021 Hyundai Elantra

A noise, a warning light, a repair quote, "should I buy this?" — get an answer grounded in this vehicle's actual NHTSA record, not generic advice.

Dash light, leak, worn part — snap it and we'll read it against this car's record.

Answers use this vehicle's NHTSA complaint & recall record — owner-reported and unverified, not a diagnosis. Verify anything safety-critical with a mechanic.

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<iframe src="https://problemsbyvin.com/embed/reliability/2021-hyundai-elantra/" width="100%" height="340" style="border:1px solid #e2e8f0;border-radius:8px;max-width:640px" title="2021 Hyundai Elantra reliability snapshot" loading="lazy"></iframe> <p style="font:12px/1.5 system-ui,sans-serif;color:#64748b;max-width:640px;margin:6px 0 0">Source: <a href="https://problemsbyvin.com/2021-hyundai-elantra/" style="color:#b8540a;font-weight:600">2021 Hyundai Elantra reliability snapshot — ProblemsByVin</a></p>

Top trouble spots 8 categories with 3+ complaints

electrical
26 reports · avg $850
moderate
seatbelts
21 reports · avg $500
critical
engine
9 reports · avg $3,100
moderate
cruise control
8 reports · avg $600
severe
powertrain
6 reports · avg $2,500
moderate
steering
5 reports · avg $700
moderate
visibility
4 reports · avg $350
moderate
body
3 reports · avg $1,500
moderate
Buyer's checklist
Going to look at one? Use the pre-purchase inspection list.
Generated from this 2021 Elantra's actual NHTSA complaint history — every item points at a documented failure pattern on this exact vehicle, not generic walkaround filler.
See the checklist ->
Honest Calculator
Should you buy an extended warranty on this 2021 Elantra?
We pulled the math: risk-weighted exposure, typical contract cost, and our verdict on whether coverage pencils out for this specific vehicle.
See the calculator ->

What owners are saying recent NHTSA-filed complaints · verbatim

2021 Elantra · seatbelts
NHTSA Recall Number 22V354000 has been active since May 18, 2022. The dealership says no dealers in the area have received the part to fix it. The recall itself carries serious safety concerns as the seatbelt will explode metal fragments in an accident. The dealer has also told…
2021 Elantra · seatbelts
The horn is not working when I press the horn or on the key fob. I had it checked and the fuses were fine. The seat belt chime also does not work out of nowhere, same time the horn stopped working.
2021 Elantra · electrical
When driving at 55MPH with cruise control on, the car suddenly accelerated to 75MPH, this happened on the open road and was able to keep under control. Auto has less than 10,000 miles. I will be contacting Hyundai customer service for a case number on this incident. First…
2021 Elantra · electrical
Odometer Fraud. The contact purchased a 2021 Hyundai Elantra. The contact stated that it was discovered that there was a mileage discrepancy. The vehicle was a dealer sale. At the time of purchase, the mileage was 51,192 and at the time of receiving the vehicle from the dealer…
View all 129 owner complaints →
Had a problem with your 2021 Hyundai Elantra? File a complaint with NHTSA → It's free and official — owner filings are what build the federal safety record behind this page.

Estimate your repair exposure

Drag to your current mileage. Numbers are derived from this vehicle's complaint history.

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At 80,000 miles
Likely repair cost in next 24 months
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Active recalls showing 3 of 6

severe NHTSA 24V879000 November 21, 2024

Hyundai Motor America (Hyundai) is recalling certain 2021-2022 Santa Fe, Santa Fe HEV, Elantra, Elantra HEV and 2022 Elantra N and Santa Fe PHEV vehicles

A rearview image that does not display reduces the driver's visibility and increases the risk of a crash.

Fix: Dealers will replace the rearview camera, free of charge. Owner notification letters were mailed January 14, 2025. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 271.
severe NHTSA 22V354000 May 19, 2022

Hyundai Motor America (Hyundai) is recalling certain 2020-2022 Accent, 2021-2022 Elantra, and 2021-2022 Elantra HEV vehicles

An exploding seat belt pretensioner can project metal fragments into the vehicle, strike vehicle occupants, and result in injury.

Fix: Dealers will secure the seat belt pretensioner(s) with a cap, free of charge. Owner notification letters were mailed August 28, 2022. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 229. This recall expands and replaces NHTSA recall numbers 21V-796, 22V-069, 22V-218, and 22V-123 for Accent, Elantra, and Elantra HEV vehicles. All Accent, Elantra, and Elantra HEV vehicles already repaired under the previous recalls will need to have the new remedy completed.
severe NHTSA 22V218000 April 1, 2022

Hyundai Motor America (Hyundai) is recalling certain 2021-2022 Elantra and 2020 Accent vehicles

Exploding seat belt pretensioners can project metal fragments into the vehicle, strike vehicle occupants, and result in injury.

Fix: Dealers will replace the seat belt pretensioners, free of charge. Interim notification letters, notifying owners of the safety risk, were mailed on May 31, 2022. A second notice will be sent once remedy parts become available. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 223. This recall is replaced by NHTSA recall number 22V-354. Vehicles already repaired under this recall will need to have the new remedy completed.
View all 6 recalls →

Common questions

Is the 2021 Hyundai Elantra reliable?

It's got known weak points. With a reliability score of 6.4 out of 10 based on 129 owner complaints filed with NHTSA, the 2021 Hyundai Elantra has a higher-than-average rate of reported issues. The areas to watch are listed above. Whether it's worth owning depends on price, condition, and how much repair exposure you can absorb.

Should you avoid the 2021 Hyundai Elantra?

The 2021 Hyundai Elantra is acceptable, with specific caveats. Worth owning if you verify the specific issues below before you buy. The record behind that call: Reliability score 6.4/10 — around the segment average; 6 recall campaigns on file. This is our read of the federal complaint and recall data — not a substitute for a pre-purchase inspection.

What should I check before buying a used 2021 Hyundai Elantra?

Inspect the electrical first — it's the most-reported issue on this model, with 26 owner complaints filed. Average repair cost runs about $850 at an independent shop. Also confirm any open recalls have been completed by running the VIN, and ask for service records covering the problem areas listed above.

Is the 2021 Hyundai Elantra a good used car to buy?

It scores 6.4 out of 10 on our NHTSA-based read of 129 owner complaints. The main thing to watch is electrical. Priced fairly and clean on inspection, it's a reasonable used buy. Our data covers what this model is known for — pair it with a vehicle-history report on the VIN to see what that specific car has been through.

What's the most common problem on the 2021 Hyundai Elantra?

Based on NHTSA records, the most-reported issue is electrical, with 26 complaints filed. Average repair cost runs about $850 at an independent shop.

What's the most expensive thing that goes wrong?

The seatbelts is one of the costlier repair items. Average repair cost runs about $500 at an independent shop. Catching early warning signs can sometimes extend life by 20–30,000 miles.

How do I check if my Hyundai Elantra has open recalls?

Paste your VIN into the decoder at the top of this page. We pull live from NHTSA, so you'll see exactly which campaigns apply to your vehicle and whether the dealer has logged the fix. Recall repairs are always free regardless of mileage or warranty status.

Is an extended warranty worth it on a 2021 Hyundai Elantra?

Math is straightforward: a quality service contract runs $1,800–3,500 over 3 years. With 129 complaints on file and the costliest repair averaging $500, one major failure more than pays for it. The catch is reading the contract — many providers exclude wear items and require pre-authorization, so cheaper plans are not always better value.

Related

Recall and complaint data sourced from the National Highway Traffic Safety Administration (NHTSA) public records database, last synced 13 hours ago. Verify the raw federal record at nhtsa.gov/vehicle/2021/Hyundai/Elantra. Editorial commentary written by ProblemsByVin contributors and reviewed by ASE-certified mechanics. We are not affiliated with Hyundai. Some links on this page are affiliate links and we may earn a commission if you purchase through them.
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