2021 Honda Accord — Full Specifications
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The 2021 Honda Accord is a saloon/sedan offered with 3 engines (1.5L 4-cyl turbo, 2L 4-cyl, 2L 4-cyl turbo). Its most fuel-efficient configuration returns around 40 mpg (UK) / 33 mpg (US EPA) combined, with 31–58 mpg (UK) across all configurations. A hybrid version is also listed by EPA (2L 4-cyl), returning around 58 mpg (UK) combined. Owners often keep a Honda Accord workshop manual to hand for servicing and repairs.
Compared with the 2020 Honda Accord: Fuel economy is essentially unchanged at around 40 mpg (UK) combined. The engine line-up listed by EPA is unchanged. It carries the same 5★ overall NHTSA rating.
Full Specifications
| Engine (most efficient) | 1.5L 4-cyl turbo |
|---|---|
| Engine options | 1.5L 4-cyl turbo · 2L 4-cyl · 2L 4-cyl turbo |
| Transmission (most efficient) | Automatic (variable gear ratios) |
| Fuel Type | Regular Gasoline |
| Powertrain | Conventional |
| Drive | Front-Wheel Drive |
| Body Style | Saloon/Sedan |
| Length | 4725 mm |
| Width | 1840 mm |
| Height | 1440 mm |
| Passenger Volume (EPA) | 106 cu ft (3,002 L) |
| Luggage Volume (EPA) | 17 cu ft (481 L) |
| Fuel Economy (UK) | 40 combined / 36 urban / 46 extra-urban mpg |
| Fuel Economy (US EPA) | 33 combined / 30 city / 38 highway mpg |
| CO₂ Emissions | 167 g/km |
| EPA Greenhouse Gas Score | 7 / 10 (10 = lowest emissions) |
| EPA Est. Annual Fuel Cost | $2,050 (15,000 mi/yr, US prices) |
Engine & Transmission Options
EPA lists 4 configurations for the 2021 Honda Accord across 3 engines (1.5L 4-cyl turbo, 2L 4-cyl, 2L 4-cyl turbo). Combined fuel economy ranges from 26 to 48 mpg (US), or 31 to 58 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 |
|---|---|---|---|---|---|---|
| 1.5L 4-cyl turbo | Automatic (AV-S7) | Front-Wheel Drive | 38 | 32 (29/35) | 173 | $2,100 |
| 1.5L 4-cyl turbo | Automatic (variable gear ratios) | Front-Wheel Drive | 40 | 33 (30/38) | 167 | $2,050 |
| 2L 4-cyl (Hybrid) | Automatic (variable gear ratios) | Front-Wheel Drive | 58 | 48 (48/48) | 114 | $1,400 |
| 2L 4-cyl turbo | Automatic (S10) | Front-Wheel Drive | 31 | 26 (22/32) | 214 | $2,600 |
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 106 cubic feet (about 3,002 litres) and luggage volume at 17 cubic feet (about 481 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 Honda Accord
Running Costs: 2021 Honda Accord
Covering around 8,000 miles a year in a 2021 Honda Accord at 40 mpg combined, expect roughly 909 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $2,050 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 Honda Accord Safety Ratings (NHTSA)
Recalls & Owner Complaints (NHTSA)
NHTSA lists 4 safety recall campaigns that include the 2021 Honda Accord (as of 6 October 2026). Most affected areas: Air bags (2), Fuel system (1), Seat belts (1). A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
- Air bags — campaign 26V332000, reported 21 May 2026. Risk: Air bags that deploy unintentionally during a crash increase the risk of injury.
- Air bags — campaign 24V064000, reported 1 February 2024. Risk: An air bag that deploys unintentionally during a crash can increase the risk of injury.
- Fuel system — campaign 23V858000, reported 18 December 2023. Risk: Fuel pump failure can cause an engine stall while driving, increasing the risk of a crash.
- Seat belts — campaign 21V900000, reported 18 November 2021. Risk: An unsecured child restraint system can increase the risk of injury during a crash.
Owners have filed 285 complaints with NHTSA about the 2021 Honda Accord. The most-reported areas are Electrical system (73), Forward collision avoidance (73), Unspecified (64). Complaints include 17 reported crashes, 1 reported fire, 9 reported injuries. That is close to the median of 401 complaints across the 17 Honda Accord model years in our data.
Used-buyer checklist for the 2021 Honda Accord
Based on where NHTSA recalls and owner complaints cluster for this model year, these are the areas worth checking before you buy:
- Electrical system (73 owner complaints) — Test every switch, window, light and warning lamp on a test drive, and ask about battery or alternator replacements.
- Driver-assist sensors (73 owner complaints) — Check that driver-assist warning lights are off and sensors are clean and undamaged.
- Engine (46 owner complaints) — Listen for unusual noise on a cold start, check for warning lights and ask for the service records.
- Air bags (2 recall campaigns) — Confirm any air bag inflator or module recalls were completed — enter the VIN at nhtsa.gov/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
Honda models in our database average about 35 mpg (UK) combined on their most efficient configuration; the 2021 Honda Accord's 40 mpg is 5 mpg above that make average. Its 167 g/km CO₂ figure is 30 g/km lower than the 197 g/km Honda average.
Of the 17 Honda Accord model years we cover, the 2021 is the most economical on its best configuration (40 mpg UK combined). See every Honda Accord 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 Honda Accord
Frequently Asked Questions
What engine does the 2021 Honda Accord have?
EPA lists 3 engines for the 2021 Honda Accord: 1.5L 4-cyl turbo, 2L 4-cyl, 2L 4-cyl turbo. The most fuel-efficient configuration pairs the 1.5L 4-cyl turbo with a automatic (variable gear ratios).
What is the fuel economy of the 2021 Honda Accord?
The most efficient configuration returns around 40 mpg (UK) combined, or 33 mpg on the US EPA cycle. Across all configurations the UK combined figure runs from 31 to 58 mpg. The hybrid version returns around 58 mpg (UK) combined.
How much does the 2021 Honda Accord cost to fuel per year?
The US EPA estimates about $2,050 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 Honda Accord have a good safety rating?
It holds an overall NHTSA rating of 5 stars, with 5 stars for frontal crash protection.
Does the 2021 Honda Accord have any recalls?
NHTSA lists 4 safety recall campaigns that include the 2021 Honda Accord (as of 6 October 2026). Most affected areas: Air bags (2), Fuel system (1), Seat belts (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 Honda Accord?
Among the 285 owner complaints filed with NHTSA, the most-reported areas are Electrical system (73 complaints), Forward collision avoidance (73 complaints), Unspecified (64 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 Honda Accord have?
EPA measures interior passenger volume at 106 cubic feet (about 3,002 litres) and luggage volume at 17 cubic feet (about 481 litres). These are US EPA interior-volume figures, which are measured differently from the UK boot-capacity numbers manufacturers quote.