2021 Hyundai Accent Problems: 4 Known Issues
2021 model year · 350+ owner reports · Updated November 2026
According to Au7o's analysis of 350+ owner reports, the 2021 Hyundai Accent has 4 documented known issues, with 3 rated critical. The most serious are IVT/CVT Transmission Failure and Shudder ($150-$4,000 repair), Seat-Belt Pretensioner May Explode and Send Shrapnel (Recall 229 / NHTSA 22V-354) and Brake Master Cylinder Sharp-Edged Seal Seat Wears the Inner Cup Seal (Recall 213 / NHTSA 21V-937) ($0-$700 repair). The most commonly reported issue is IVT/CVT Transmission Failure and Shudder with 350 owner reports. Across all issues with published estimates, repair costs range from $150 to $4,000. DIY maintenance guides at au7o.io.
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All 4 Known Issues
NHTSA Recalls6 recalls
SEAT BELTS:FRONT
Hyundai Motor America (Hyundai) is recalling certain 2020-2021 Accent vehicles. In the event of a crash, the front driver-side and/or passenger-side seat belt pretensioner(s) may explode upon deployment.
STEERING:COLUMN
Hyundai Motor America (Hyundai) is recalling certain 2021-2022 Accent vehicles. A bolt in the steering column may not be secured properly, which can cause the steering column to detach from the steering rack and result in a loss of steering control.
SEAT BELTS:FRONT
Hyundai Motor America (Hyundai) is recalling certain 2021-2022 Elantra and 2020 Accent vehicles. In the event of a crash, the front driver and passenger-side seat belt pretensioners may explode upon deployment.
LATCHES/LOCKS/LINKAGES:TRUNK LID:LATCH
Hyundai Motor America (Hyundai) is recalling certain 2017-2018 Sonata, 2016-2018 Sonata Hybrid, 2018-2020 Accent, and 2016-2017 Azera vehicles. The trunk latch may become damaged, preventing the opening of the trunk from the inside. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 401, "Internal Trunk Release."
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER
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.
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Frequently Asked Questions
What are the most common Hyundai Accent problems?
According to Au7o's analysis of 350+ owner reports, the 2021 Hyundai Accent has 4 documented issues. The most frequently reported are: IVT/CVT Transmission Failure and Shudder, Seat-Belt Pretensioner May Explode and Send Shrapnel (Recall 229 / NHTSA 22V-354), Brake Master Cylinder Sharp-Edged Seal Seat Wears the Inner Cup Seal (Recall 213 / NHTSA 21V-937). Of these, 3 are rated critical and should be addressed promptly.
Is the Hyundai Accent reliable?
The 2021 Hyundai Accent has 4 known issues documented across 350+ owner reports. 3 issues are rated critical: IVT/CVT Transmission Failure and Shudder and Seat-Belt Pretensioner May Explode and Send Shrapnel (Recall 229 / NHTSA 22V-354) and Brake Master Cylinder Sharp-Edged Seal Seat Wears the Inner Cup Seal (Recall 213 / NHTSA 21V-937). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Hyundai Accent problems?
Repair costs for known Hyundai Accent issues range from $0 to $4,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, IVT/CVT Transmission Failure and Shudder, typically costs $150-$4,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2020-2022 Hyundai Accent IVT/CVT Transmission Failure and Shudder?
The IVT (CVT) transmission in 2020+ Accent models can fail prematurely, with symptoms ranging from shuddering and slipping to complete loss of drive. The chain and pulley system wears, especially with aggressive driving or neglected fluid changes. Rebuilds are typically not cost-… Repairs typically run $150-$4,000. Severity: high.
What is the 2020-2022 Hyundai Accent Seat-Belt Pretensioner May Explode and Send Shrapnel (Recall 229 / NHTSA 22V-354)?
NHTSA recall 22V354 covers certain 2020-2022 Hyundai Accent vehicles. In a crash, a front driver-side or passenger-side seat-belt pretensioner can explode when it deploys, projecting metal fragments into the passenger compartment and risking occupant injury. Severity: high.
What is the 2021 Hyundai Accent Brake Master Cylinder Sharp-Edged Seal Seat Wears the Inner Cup Seal (Recall 213 / NHTSA 21V-937)?
Some 2021 Accent brake master cylinders left the supplier with a sharp edge machined on one of the secondary inner cup seal seats. The sharp edge cuts and prematurely wears the inner cup seal, which lets brake fluid bypass internally. The result is a long or sinking brake pedal a… Repairs typically run $0-$700. Severity: high.
What is the 2011-2022 Hyundai Accent No engine immobilizer on key-start Accents: ignition-cylinder protector and anti-theft campaigns — bulletin 24-01-007H?
Certain key-start Hyundai vehicles were not equipped with an engine immobilizer, and thefts of these 2011-2022 vehicles increased after they were targeted through social media. 2011-2017 Hyundai Accent (MC 2011 and RB 2012-2017) without an immobilizer or push-button start cannot… Severity: medium.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.