2021 Hyundai Accent — Full Specifications
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The 2021 Hyundai Accent is a hatchback powered by a 1.6L 4-cyl regular gasoline engine. Its most fuel-efficient configuration returns around 43 mpg (UK) / 36 mpg (US EPA) combined, with 40–43 mpg (UK) across all configurations. Owners often keep a Hyundai Accent workshop manual to hand for servicing and repairs.
Compared with the 2020 Hyundai Accent: Fuel economy is essentially unchanged at around 43 mpg (UK) combined. The engine line-up listed by EPA is unchanged. It carries the same 4★ overall NHTSA rating.
Full Specifications
| Engine | 1.6L 4-cyl |
|---|---|
| Transmission | Automatic (AV-S1) |
| Fuel Type | Regular Gasoline |
| Powertrain | Conventional |
| Drive | Front-Wheel Drive |
| Body Style | Hatchback |
| Passenger Volume (EPA) | 90 cu ft (2,549 L) |
| Luggage Volume (EPA) | 14 cu ft (396 L) |
| Fuel Economy (UK) | 43 combined / 40 urban / 49 extra-urban mpg |
| Fuel Economy (US EPA) | 36 combined / 33 city / 41 highway mpg |
| CO₂ Emissions | 154 g/km |
| EPA Greenhouse Gas Score | 8 / 10 (10 = lowest emissions) |
| EPA Est. Annual Fuel Cost | $1,850 (15,000 mi/yr, US prices) |
Engine & Transmission Options
EPA lists 2 configurations for the 2021 Hyundai Accent, all with the 1.6L 4-cyl engine. Combined fuel economy ranges from 33 to 36 mpg (US), or 40 to 43 mpg (UK), depending on engine, transmission and drive. The headline figures at the top of this page describe the most fuel-efficient configuration.
| Engine | Transmission | Drive | MPG (UK) | MPG (US) | CO₂ g/km | Fuel cost / yr |
|---|---|---|---|---|---|---|
| 1.6L 4-cyl | Automatic (AV-S1) | Front-Wheel Drive | 43 | 36 (33/41) | 154 | $1,850 |
| 1.6L 4-cyl | Manual 6-spd | Front-Wheel Drive | 40 | 33 (29/39) | 170 | $2,050 |
MPG (US) shows combined, with city/highway in brackets. Highlighted row = the configuration used for the headline figures. Source: US EPA fueleconomy.gov.
EPA measures interior passenger volume at 90 cubic feet (about 2,549 litres) and luggage volume at 14 cubic feet (about 396 litres). These are US EPA interior-volume figures; they are measured differently from the boot capacity numbers UK manufacturers quote.
Owner Essentials for the 2021 Hyundai Accent
Running Costs: 2021 Hyundai Accent
Covering around 8,000 miles a year in a 2021 Hyundai Accent at 43 mpg combined, expect roughly 846 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $1,850 a year in fuel for the most efficient configuration (15,000 miles, national average prices). Work out exact fuel costs with the fuel cost calculator on 247Calculators.
Convert between MPG and L/100km with the unit converters on 247QuickTools. Not sure what tyre size fits? 247TyreCheck explains tyre sizing.
Only need this car occasionally? See our buy vs rent comparison.
2021 Hyundai Accent Safety Ratings (NHTSA)
Recalls & Owner Complaints (NHTSA)
NHTSA lists 4 safety recall campaigns that include the 2021 Hyundai Accent (as of 6 October 2026). Most affected areas: Seat belts (2), Steering (1), Service brakes (1). A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
- Seat belts — campaign 22V354000, reported 19 May 2022. Risk: An exploding seat belt pretensioner can project metal fragments into the vehicle, strike vehicle occupants, and result in injury.
- Steering — campaign 22V311000, reported 6 May 2022. Risk: Loss of steering control can increase the risk of a crash.
- Seat belts — campaign 22V069000, reported 9 February 2022. Risk: An exploding seat belt pretensioner can project metal fragments into the vehicle, striking vehicle occupants and resulting in injury.
- Service brakes — campaign 21V937000, reported 2 December 2021. 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.
Owners have filed 16 complaints with NHTSA about the 2021 Hyundai Accent. The most-reported areas are Seat belts (6), Wheels (5), Engine (4). Complaints include 1 reported fire, 1 reported injury. That is well below the median of 68 complaints across the 13 Hyundai Accent model years in our data.
Used-buyer checklist for the 2021 Hyundai Accent
Based on where NHTSA recalls and owner complaints cluster for this model year, these are the areas worth checking before you buy:
- Seat belts (2 recall campaigns · 6 owner complaints) — Check every belt latches and retracts properly and that any restraint recalls were completed.
- Steering (1 recall campaign) — Check for play, noise or heavy steering, and ask whether any steering recall work was done.
- Brakes (1 recall campaign) — Brake firmly from speed and look for pulling, vibration or a soft pedal; ask for brake service history.
- Wheels (5 owner complaints) — Look for bent or cracked wheels and ask about any wheel recalls.
Source: US NHTSA recall and consumer-complaint databases, retrieved 6 October 2026. Complaints are unverified owner reports, not confirmed defects. Check any vehicle by VIN at nhtsa.gov/recalls, and see our guide to checking a used car for recalls.
How It Compares
Hyundai models in our database average about 34 mpg (UK) combined on their most efficient configuration; the 2021 Hyundai Accent's 43 mpg is 9 mpg above that make average. Its 154 g/km CO₂ figure is 53 g/km lower than the 207 g/km Hyundai average.
Of the 13 Hyundai Accent model years we cover, the 2021 is the most economical on its best configuration (43 mpg UK combined). See every Hyundai Accent year side by side.
Last updated: · Data: US EPA (fueleconomy.gov) and NHTSA safety ratings 18 July 2026; NHTSA recalls and complaints 6 October 2026; Wikidata & curated EU catalogue 18 July 2026; European generation and engine data from Wikipedia 7 October 2026
Vehicle data sourced from manufacturer specifications. Always verify with your vehicle handbook or a qualified mechanic. This is a reference tool, not professional advice.
Recommended Accessories for the 2021 Hyundai Accent
Frequently Asked Questions
What engine does the 2021 Hyundai Accent have?
It's fitted with a 1.6L 4-cyl regular gasoline engine, paired with a automatic (av-s1) transmission.
What is the fuel economy of the 2021 Hyundai Accent?
The most efficient configuration returns around 43 mpg (UK) combined, or 36 mpg on the US EPA cycle. Across all configurations the UK combined figure runs from 40 to 43 mpg.
How much does the 2021 Hyundai Accent cost to fuel per year?
The US EPA estimates about $1,850 a year in fuel for the most efficient configuration, based on 15,000 miles of mixed driving and national average fuel prices. Your own cost will depend on mileage and local prices.
Does the 2021 Hyundai Accent have a good safety rating?
It holds an overall NHTSA rating of 4 stars, with 4 stars for frontal crash protection.
Does the 2021 Hyundai Accent have any recalls?
NHTSA lists 4 safety recall campaigns that include the 2021 Hyundai Accent (as of 6 October 2026). Most affected areas: Seat belts (2), Steering (1), Service brakes (1). A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
What are the most common problems reported for the 2021 Hyundai Accent?
Among the 16 owner complaints filed with NHTSA, the most-reported areas are Seat belts (6 complaints), Wheels (5 complaints), Engine (4 complaints). Complaints are unverified owner reports, not confirmed defects, and raw counts rise with how many cars were sold.
How much interior and luggage space does the 2021 Hyundai Accent have?
EPA measures interior passenger volume at 90 cubic feet (about 2,549 litres) and luggage volume at 14 cubic feet (about 396 litres). These are US EPA interior-volume figures, which are measured differently from the UK boot-capacity numbers manufacturers quote.