2021 Hyundai Accent Master Cylinder Recall (21V937)
Hyundai Motor America · 76 vehicles · Reported December 2, 2021
Hyundai Motor America is recalling 76 2021 Hyundai Accent vehicles. The brake master cylinder may have been manufactured with sharp edges that can damage the inner oil seal, resulting in reduced braking performance. Reduced braking performance can cause longer brake pedal travel or extend the distance required to stop the vehicle, increasing the risk of a crash. Dealers will make the repair free of charge.
Recall 21V937 at a glance
| NHTSA campaign number | 21V937000 |
|---|---|
| Manufacturer recall number | 213 |
| Date reported to NHTSA | December 2, 2021 |
| Manufacturer | Hyundai Motor America |
| Vehicles | 2021 Hyundai Accent |
| Units affected | 76 |
| Component | Service Brakes, Hydraulic > Foundation Components > Master Cylinder |
| Safety risk | Reduced braking performance can cause longer brake pedal travel or extend the distance required to stop the vehicle, increasing the risk of a crash. |
| Fix | Available at dealers |
What is wrong with the 2021 Hyundai Accent in recall 21V937?
The brake master cylinder may have been manufactured with sharp edges that can damage the inner oil seal, resulting in reduced braking performance.
Hyundai Motor America (Hyundai) is recalling certain 2021 Accent vehicles. The brake master cylinder may have been manufactured with sharp edges that can damage the inner oil seal, resulting in reduced braking performance.
Is it safe to drive a 2021 Accent with recall 21V937?
NHTSA has not told owners to stop driving, but the risk is real: Reduced braking performance can cause longer brake pedal travel or extend the distance required to stop the vehicle, increasing the risk of a crash.
NHTSA describes the risk this way: Reduced braking performance can cause longer brake pedal travel or extend the distance required to stop the vehicle, increasing the risk of a crash.
There is no do-not-drive order on this campaign. If your Accent shows warning lights or behaves differently in a way that involves the master cylinder, have it checked before driving further.
Which vehicles are included in recall 21V937?
Recall 21V937 covers 76 vehicles: 2021 Hyundai Accent.
NHTSA lists 76 vehicles in this campaign. Not every vehicle of these models and years is included, so check your VIN.
| Model years | Make | Model |
|---|---|---|
| 2021 | Hyundai | Accent |
What is the fix for the Accent master cylinder recall?
Yes. Dealers will replace the brake master cylinder, free of charge.
Dealers will replace the brake master cylinder, free of charge. Owner notification letters were mailed February 10, 2022. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 213.
When was recall 21V937 announced?
Hyundai Motor America reported recall 21V937 to NHTSA on December 2, 2021. NHTSA lists the owner letter date as February 10, 2022.
| Date | What happened |
|---|---|
| December 2, 2021 | Hyundai Motor America filed the defect report with NHTSA; NHTSA assigned campaign 21V937000. |
| February 10, 2022 | Owner notification letters mailed (per NHTSA). |
This recall was filed 58 months ago. If your Accent was built in that window, the VIN check below is the way to confirm it is included.
How do I check if my Accent is part of recall 21V937?
Enter your 17-character VIN at nhtsa.gov/recalls. If recall 21V937 is open on your Accent, it will be listed there.
Look up your VIN on nhtsa.gov/recalls. If 21V937000 is open on your Accent, it will be listed there, along with Hyundai recall number 213. You can also ask any Hyundai dealer to run the VIN. The VIN is printed on your registration and visible through the lower driver-side windshield.
What should Accent owners do about recall 21V937?
Check your VIN, schedule the free recall repair, and keep a repair order for every dealer visit.
- Check your VIN at nhtsa.gov/recalls to confirm recall 21V937000 applies to your Accent.
- Call a Hyundai dealer and schedule the recall repair. Ask how long the repair takes and whether parts are in stock.
- Keep a copy of every repair order. Check that each one lists your complaint, the mileage, and the dates in and out.
- Keep a simple log of any master cylinder symptoms with dates and mileage. Video of a warning light or the problem happening is strong evidence.
- Count the days the vehicle is at the dealer. Days out of service add up toward California's 30-day presumption.
- If the problem comes back after the repair, return to the dealer and contact a lemon law attorney.
What are Accent owners reporting to NHTSA?
Owners have filed 16 complaints with NHTSA about these vehicles since 2020, 1 of them about the brakes.
Too few NHTSA complaints about the brakes have been filed since recall 21V937 was reported (1) to say whether the fix is holding.
NHTSA’s public complaint database lists 16 owner complaints filed since 2020 for the vehicles in this recall, and 1 of them involve the brakes. Complaints are reports from owners and have not been verified by NHTSA, but a high count for the same component is a sign the problem is widespread.
- 2021 Hyundai Accent: 16 complaints in total, 1 about the brakes
Can recall 21V937 make my Accent a lemon in California?
Not by itself. A recall repair that fails, or repeat dealer visits for the same defect, can support a California lemon law claim.
Recall 21V937000 does not automatically make your Accent a lemon. California's Song-Beverly Act asks two questions: does a warranty defect substantially impair the vehicle's use, value or safety, and did the manufacturer fail to fix it in a reasonable number of tries (Civ. Code 1793.2(d))?
Brake defects are safety defects. California's lemon law presumption can apply after two repair attempts for a defect likely to cause death or serious injury, when the manufacturer has been notified directly.
The recall repair is available at dealers. If it works, great. If the same symptom comes back, the recall visit is one repair attempt and the next visit is another.
For the first 18 months or 18,000 miles, California presumes the manufacturer had enough chances if the Accent went in two or more times for a defect likely to cause death or serious injury, four or more times for the same defect, or spent more than 30 days in the shop (Civ. Code 1793.22(b)). Direct notice to the manufacturer is required for some of these. The presumption is a shortcut, not the only path to a claim.
An owner who prevails in a lemon law case can recover reasonable attorney fees and costs from the manufacturer (Civ. Code 1794(d)). You pay nothing, win or lose. We are paid only if you win, and the manufacturer pays our fees, including in settlements. If a case is lost, our firm covers the costs.
In our cases, a recall repair visit counts as a repair attempt, and it's strongest when the owner complained about the problem before the recall came out. A recall shows the defect is real and that enough owners reported it for the manufacturer to issue a fix.
The biggest mistake I see is waiting too long. The mileage offset starts at your first repair visit for the problem, so the sooner you take it in, the better. If the problem comes and goes, take it in when it happens. You can't go back to that date later.
If you get a recall notice, call a lemon law attorney right away. You may have taken the car in for the same problem before and forgotten, or there may be other recalls related to it.
Jacob Shayesteh, Esq. (SBN 362320), Founder and Managing Attorney. Quotes lightly edited for clarity. Prior results do not guarantee a similar outcome.
Has your Accent been back to the dealer for this problem?
Call 877-536-6620Other Hyundai Accent recalls
Frequently asked questions about recall 21V937
Is the 21V937000 recall repair free?
Yes. Safety recall repairs are done free of charge at authorized dealers.
When will owners be notified?
According to NHTSA, owner notification letters were or are scheduled to be mailed February 10, 2022.
How do I know if my Accent is part of recall 21V937000?
Enter your 17-character VIN in NHTSA's recall lookup at nhtsa.gov/recalls, or call a dealer. The VIN is on your registration, insurance card and the lower corner of the windshield.
Does a recall mean my car is a lemon?
Not on its own. A lemon law claim depends on whether a covered defect keeps coming back or keeps the vehicle out of service. A recall repair that fails, or repeat visits for the same problem, can support a claim.
What should I keep for a possible lemon law claim?
Keep every repair order, the recall owner letter, your purchase or lease contract, and notes on dates, mileage and symptoms. Make sure each dealer visit is written up, even when the dealer says it cannot find a problem.
Does the recall fixing my car mean I have no case?
Not necessarily. Even if the recall repair fixed it, you may still have a case, and a car that's a year or more old can still qualify.
Do used cars qualify for California lemon law?
We take certified pre-owned, demo and dealer vehicles. Since the California Supreme Court's Rodriguez decision in 2024, ordinary used cars generally do not qualify.
How long does a recall lemon law case take?
Recall-related cases typically resolve in one to three months from your first call. Prior results do not guarantee a similar outcome.
What does a lemon law attorney cost?
You pay nothing, win or lose. We are paid only if you win, and the manufacturer pays our fees, including in settlements. If a case is lost, our firm covers the costs.
Sources
- NHTSA recall record 21V937000 (recall report and owner letters are posted there)
- NHTSA complaints and recalls data, accessed October 1, 2026
- California Civil Code 1793.2 and 1793.22
Attorney advertising. America’s Lemon Lawyer is a trade name of Wynn Law Group, APC. Responsible attorney: Jacob Shayesteh, Esq. (SBN 362320). This page is general information, not legal advice. America’s Lemon Lawyer is not affiliated with NHTSA or Hyundai. Prior results do not guarantee a similar outcome.