What are the most common Hyundai Accent problems?

According to Au7o's analysis of 870+ owner reports, the 2021-2021 Hyundai Accent has 2 documented issues. The most frequently reported are: IVT/CVT Transmission Failure and Shudder, Crankshaft Position Sensor Failure. Of these, 1 is rated critical and should be addressed promptly.

Is the Hyundai Accent reliable?

The 2021-2021 Hyundai Accent has 2 known issues documented across 870+ owner reports. 1 issue is rated critical: IVT/CVT Transmission Failure and Shudder. 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 $110 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.

2021 Hyundai Accent Problems: 2 Issues Every Owner Should Know

2021 model year · 870+ owner reports · Updated April 2026

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According to Au7o's analysis of 870+ owner reports, the 2021 Hyundai Accent has 2 documented known issues, with 1 rated critical. The most serious is IVT/CVT Transmission Failure and Shudder ($150-$4,000 repair). The most commonly reported issue is Crankshaft Position Sensor Failure with 520 owner reports. Across all issues, repair costs range from $110 to $4,000. DIY maintenance guides at au7o.io.

All 2 Known Issues

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Community Reported

350 owners

On the 2017-2022 Hyundai Accent, the IVT (CVT) transmission in 2017+ 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-effective given the vehicle's value.

This issue also affects: Acura TL, Infiniti QX60, Mitsubishi Outlander

Common Symptoms

Shuddering at low speeds
Rubber-band effect on acceleration
Droning noise at highway speed
Complete loss of drive
Transmission warning light

How to Fix

Regular IVT fluid changes every 30,000 miles (not lifetime as Hyundai suggests) using SP-CVT1 fluid. If shuddering, a fluid drain and fill may resolve mild cases. Severe cases require transmission replacement ($2,500-4,000). Given the Accent's value, a used transmission ($800-1,200 installed) may be more practical.

What Owners Are Using

Parts and tips from 350+ owners who fixed this issue

UpgradeHyundai SP-CVT1 fluid is critical - do not use generic CVT fluid (Hyundai SP-CVT1 Fluid)
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TipChange IVT fluid every 30,000 miles regardless of what the owners manual says - this is the single best thing you can do for longevity
NoteIf the transmission starts slipping, get it inspected immediately - IVT damage progresses rapidly once it starts

Typical repair cost:$150 - $4,000

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350+ owners have reported this issue

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Community Reported

Medium ConfidenceVerified350 reportsLast reported by owners Jan 2025Reviewed Feb 2026

Community Reported

520 owners

On the 2012-2022 Hyundai Accent 1.6L, the crankshaft position sensor on the 1.6L Gamma engine in the Accent fails prematurely, causing no-start conditions, intermittent stalling, and rough running. The sensor's internal hall-effect element degrades from heat exposure near the engine block. Common failure between 60,000-100,000 miles.

This issue also affects: BMW 8 Series, BMW i3, BMW M3

Common Symptoms

Engine stalls randomly while driving
No-start with cranking but no fire
Check engine light with P0335 or P0336
Intermittent rough idle
Engine dies at red lights

How to Fix

Replace the crankshaft position sensor (Hyundai part 39180-2B000). The sensor is located near the transmission bellhousing on the engine block. Parts cost $30-80, labor $80-150. This is a common DIY repair taking about 30-45 minutes. Always use an OEM sensor as aftermarket sensors have high failure rates.

What Owners Are Using

Parts and tips from 520+ owners who fixed this issue

UpgradeHyundai OEM sensor 39180-2B000 is only $35-45 and lasts much longer than aftermarket options (Hyundai OEM #39180-2B000)
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TipKeep a spare crank sensor in the glove box - it takes 30 minutes to replace on the side of the road and costs under $50

Typical repair cost:$110 - $230

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520+ owners have reported this issue

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Community Reported

High ConfidenceVerified520 reportsLast reported by owners Jul 2024Reviewed Feb 2026

2021 Hyundai Accent Problems: 2 Issues Every Owner Should Know

All 2 Known Issues

2017-2022 Hyundai Accent: IVT/CVT Transmission Failure and Shudder#

Common Symptoms

How to Fix

What Owners Are Using

Research This Issue

2012-2022 Hyundai Accent: Crankshaft Position Sensor Failure#

Common Symptoms

How to Fix

What Owners Are Using

Research This Issue

Other Hyundai Models

Frequently Asked Questions

What are the most common Hyundai Accent problems?

Is the Hyundai Accent reliable?

How much does it cost to fix common Hyundai Accent problems?

What is the 2017-2022 Hyundai Accent IVT/CVT Transmission Failure and Shudder?

What is the 2012-2022 Hyundai Accent Crankshaft Position Sensor Failure?