Exact configuration / US market
2021 / MY2021 / FWD
Honda Civic 5Dr · Automatic (variable gear ratios) · 4 cyl · 1.5 L · Turbo
MY2021 US configuration with 1.5 L, automatic (variable gear ratios), and source-linked EPA data.
01 / Key facts
02 / Maintenance at a glance
9 maintenance guides available
Source-backed owner service for this exact configuration.
View all maintenance →Technical specifications
Facts are grouped by system. Expand any row to inspect evidence and its exact source locator.
Identity
8/11- Model year
- 2021
Verified
FuelEconomy.gov vehicle record 43056, year - Market
- United States
Verified
FuelEconomy.gov vehicle record 43056, dataset US-market scope - Body style
- Passenger car
Verified
FuelEconomy.gov vehicle record 43056, VClass - Doors
- Not recorded
- Seating capacityThe stated value is identical across all four factory trim columns; no retail trim badge is inferred.
- 5
Verified
2021 Honda Civic Hatchback Specifications — Honda Information Center
Seating table, Seating Capacity, all four columns - Chassis / platform code
- Not recorded
- Factory grade
- Not recorded
- Manufacturer code
- HNX
Verified
FuelEconomy.gov vehicle record 43056, mfrCode - EPA vehicle class
- Large Cars
Verified
FuelEconomy.gov vehicle record 43056, VClass - FuelEconomy.gov record
- 43056
Verified
FuelEconomy.gov vehicle record 43056, id - EPA engine ID
- 11
Verified
FuelEconomy.gov vehicle record 43056, engId
Powertrain
13/22- Powertrain layout
- Not recorded
- Powertrain type
- Internal combustion
Verified
FuelEconomy.gov vehicle record 43056, atvType, fuelType1, and fuelType - Engine
- Not recorded
- Engine description
- SIDI
Verified
FuelEconomy.gov vehicle record 43056, eng_dscr - Engine code
- Not recorded
- Engine position
- Not recorded
- Cylinders
- 4
Verified
FuelEconomy.gov vehicle record 43056, cylinders - DisplacementReplaces the EPA rounded 1.5 L/1500 cm³ representation with the manufacturer’s explicit 1498 cm³. Original EPA record identity, fuel and efficiency values are preserved.
- 91.4 cu in
Verified
2021 Honda Civic Hatchback Specifications — Honda Information Center
Engineering table, Displacement, all LX/Sport/EX/Sport Touring columns - BoreThe stated value is identical across all four factory trim columns; no retail trim badge is inferred.
- 2.9 in
Verified
2021 Honda Civic Hatchback Specifications — Honda Information Center
Engineering table, Bore and Stroke:73.0 mm /89.5 mm, all four columns - StrokeThe stated value is identical across all four factory trim columns; no retail trim badge is inferred.
- 3.5 in
Verified
2021 Honda Civic Hatchback Specifications — Honda Information Center
Engineering table, Bore and Stroke:73.0 mm /89.5 mm, all four columns - Compression ratioThe stated value is identical across all four factory trim columns; no retail trim badge is inferred.
- 10.6:1
Verified
2021 Honda Civic Hatchback Specifications — Honda Information Center
Engineering table, Compression Ratio:10.6:1, all four columns - ValvesFactory valve-train description:16-valve DOHC.
- 16
Verified
2021 Honda Civic Hatchback Specifications — Honda Information Center
Engineering table, Valve Train:16-Valve DOHC, all four columns - Induction
- Turbocharged
Verified
FuelEconomy.gov vehicle record 43056, tCharger, sCharger, and eng_dscr - Fuel deliveryThe stated value is identical across all four factory trim columns; no retail trim badge is inferred.
- Direct fuel injection
Verified
2021 Honda Civic Hatchback Specifications — Honda Information Center
Engineering table, Direct Fuel Injection, standard in all four columns - Fuel
- Regular Gasoline
Verified
FuelEconomy.gov vehicle record 43056, fuelType1 and fuelType - Alternate fuel
- Not recorded
- Stop-start system
- No
Verified
FuelEconomy.gov vehicle record 43056, startStop - Engine power
- Not recorded
- Power speed
- Not recorded
- Engine torque
- Not recorded
- Torque speed
- Not recorded
- RedlineThe stated value is identical across all four factory trim columns; no retail trim badge is inferred.
- 6,600 rpm
Verified
2021 Honda Civic Hatchback Specifications — Honda Information Center
Engineering table, Redline:6600 rpm, all four columns
Transmission
3/8- Transmission
- Automatic (variable gear ratios)
Verified
FuelEconomy.gov vehicle record 43056, trany - Transmission code
- Not recorded
- Transmission type
- Automatic
Derived
FuelEconomy.gov vehicle record 43056, trany; normalized transmission type - EPA transmission descriptor
- Not recorded
- Forward ratios / speeds
- Not recorded
- Driven wheels
- FWD
Verified
FuelEconomy.gov vehicle record 43056, drive - Differential
- Not recorded
- Transfer case
- Not recorded
Gearing
3/19- 1st gear
- Not recorded
- 2nd gear
- Not recorded
- 3rd gear
- Not recorded
- 4th gear
- Not recorded
- 5th gear
- Not recorded
- 6th gear
- Not recorded
- 7th gear
- Not recorded
- 8th gear
- Not recorded
- 9th gear
- Not recorded
- 10th gear
- Not recorded
- CVT lowest ratio
- 2.6:1
Verified
2021 Honda Civic Hatchback Specifications — Honda Information Center
Transmissions, LL-CVT table, Ratio Range2.645–0.405, low ratio, all four CVT columns - CVT highest ratio
- 0.4:1
Verified
2021 Honda Civic Hatchback Specifications — Honda Information Center
Transmissions, LL-CVT table, Ratio Range2.645–0.405, high ratio, all four CVT columns - Reverse
- Not recorded
- Final drive
- 4.8:1
Verified
2021 Honda Civic Hatchback Specifications — Honda Information Center
Transmissions, LL-CVT table, Final Drive4.81, all four CVT columns - Front final drive
- Not recorded
- Rear final drive
- Not recorded
- Secondary reduction
- Not recorded
- Transfer-case high range
- Not recorded
- Transfer-case low range
- Not recorded
Chassis and steering
3/7- Frame / construction
- Not recorded
- Front suspensionThe stated value is identical across all four factory trim columns; no retail trim badge is inferred.
- MacPherson strut
Verified
2021 Honda Civic Hatchback Specifications — Honda Information Center
Body / Suspension / Chassis table, MacPherson Strut Front Suspension, all four columns - Rear suspensionThe stated value is identical across all four factory trim columns; no retail trim badge is inferred.
- Multi-link
Verified
2021 Honda Civic Hatchback Specifications — Honda Information Center
Body / Suspension / Chassis table, Multi-Link Rear Suspension, all four columns - SteeringThe stated value is identical across all four factory trim columns; no retail trim badge is inferred.
- Variable-ratio electric power-assisted rack-and-pinion
Verified
2021 Honda Civic Hatchback Specifications — Honda Information Center
Body / Suspension / Chassis table, Variable Ratio Electric Power-Assisted Rack-and-Pinion Steering, all four columns - Steering ratio
- Not recorded
- Turns lock-to-lock
- Not recorded
- Turning circle
- Not recorded
Brakes
2/6- Brake system
- Not recorded
- Front brakesThe stated value is identical across all four factory trim columns; no retail trim badge is inferred.
- Power-assisted ventilated disc,11.1 in
Verified
2021 Honda Civic Hatchback Specifications — Honda Information Center
Body / Suspension / Chassis table, Power-Assisted Ventilated Front Disc/Solid Rear Disc Brakes, front11.1 in, all four columns - Rear brakesThe stated value is identical across all four factory trim columns; no retail trim badge is inferred.
- Power-assisted solid disc,10.2 in
Verified
2021 Honda Civic Hatchback Specifications — Honda Information Center
Body / Suspension / Chassis table, Power-Assisted Ventilated Front Disc/Solid Rear Disc Brakes, rear10.2 in, all four columns - Front rotor diameter
- Not recorded
- Rear rotor diameter
- Not recorded
- Anti-lock braking
- Not recorded
Wheels and tires
0/8- Wheels
- Not recorded
- Front wheel
- Not recorded
- Rear wheel
- Not recorded
- Front tire
- Not recorded
- Rear tire
- Not recorded
- Wheel fastener torque
- Not recorded
- Front cold tire pressure
- Not recorded
- Rear cold tire pressure
- Not recorded
Replacement fitment
1/22- Wheel bolt pattern
- Not recorded
- Center bore
- Not recorded
- Front wheel offset
- Not recorded
- Rear wheel offset
- Not recorded
- Wheel fastener thread
- Not recorded
- Spare tire
- Not recorded
- Driver-side wiper
- Not recorded
- Passenger-side wiper
- Not recorded
- Rear wiper
- Not recorded
- 12 V battery specification
- Not recorded
- 12 V battery group / size
- Not recorded
- Low-beam bulb
- Not recorded
- High-beam bulb
- Not recorded
- Fog-lamp bulb
- Not recorded
- Front turn-signal bulb
- Not recorded
- Rear turn-signal bulb
- Not recorded
- Brake-lamp bulb
- Not recorded
- Reverse-lamp bulb
- Not recorded
- Engine air-filter fitment
- Not recorded
- Cabin air-filter fitment
- Not recorded
- Engine oil-filter fitmentReviewed only for the eight explicitly assigned 2021 Civic sedan, hatchback and Type R configurations with their recorded engines and transmissions. The Type R match comes from its separate K20C1 row. WIX displacement labels are retained as printed and do not change Honda displacement. Use one standard 57356 filter and follow Honda service intervals.
- WIX 57356
Verified
WIX 2021 Application Catalog 99400, printed page 335 / PDF page 336, HONDA 2021: CIVIC L4 1.5L 1497cc Turbo; CIVIC L4 2.0L 1996cc 122 CID; separate CIVIC Type R L4 2L 2000cc 122 CID Turbo, K20C1. Oil column: 57356 in all three rows, not Oil XP 57356XP. Printed page 16 / PDF page 17: footnote 53 is the Masterpack option only. - Engine oil drain washer
- Not recorded
Dimensions and capacity
5/13- Overall lengthThe stated value is identical across all four factory trim columns; no retail trim badge is inferred.
- 177.9 in
Derived
2021 Honda Civic Hatchback Specifications — Honda Information Center
Exterior Measurements table, Length:177.9 in, all four columns - Overall widthThe stated value is identical across all four factory trim columns; no retail trim badge is inferred.
- 70.8 in
Derived
2021 Honda Civic Hatchback Specifications — Honda Information Center
Exterior Measurements table, Width:70.8 in, all four columns - Overall height
- Not recorded
- WheelbaseThe stated value is identical across all four factory trim columns; no retail trim badge is inferred.
- 106.3 in
Derived
2021 Honda Civic Hatchback Specifications — Honda Information Center
Exterior Measurements table, Wheelbase:106.3 in, all four columns - Front track
- Not recorded
- Rear track
- Not recorded
- Ground clearance
- Not recorded
- Curb weight
- Not recorded
- Weight distribution
- Not recorded
- Passenger volume
- 97 ft³
Verified
FuelEconomy.gov vehicle record 43056, pv2, pv4, and hpv - Cargo volume
- 26 ft³
Verified
FuelEconomy.gov vehicle record 43056, lv2, lv4, and hlv - Payload
- Not recorded
- Drag coefficient
- Not recorded
Load and utility
0/13- GVWR
- Not recorded
- Front GAWR
- Not recorded
- Rear GAWR
- Not recorded
- GCWR
- Not recorded
- Maximum trailer weight
- Not recorded
- Maximum tongue load
- Not recorded
- Maximum roof load
- Not recorded
- Cargo-bed length
- Not recorded
- Cargo-bed width
- Not recorded
- Cargo-bed depth
- Not recorded
- Cargo-floor length
- Not recorded
- Cargo-area width
- Not recorded
- Cargo-area height
- Not recorded
Fluids and capacities
4/16- Fuel tankU.S.-gallon conversion; the owner manual independently prints 12.39 US gal (46.9 L) on printed 684/PDF 686.
- 49.6 US qt
Derived
2021 Honda Civic Hatchback Specifications — Honda Information Center
MPG & Fuel Economy Ratings table, Fuel Tank Capacity:12.39 gal, all four U.S. columns - Engine oil capacity
- Not recorded
- Engine oil with filterPublished as 3.7 US qt (3.5 L); check the dipstick after the service rather than treating capacity as a blind fill target.
- 3.7 US qt
Verified
2021 Honda Civic Hatchback Owner’s Manual — ATGG2121OM / 31TGG6400
2021 Civic Hatchback Owner’s Manual, printed page 685 / PDF page 687 (zero-based index 686), Engine Oil, change including filter, footnote *1: 1.5 L engine models - Engine oil without filter
- 3.4 US qt
Verified
2021 Honda Civic Hatchback Owner’s Manual — ATGG2121OM / 31TGG6400
2021 Civic Hatchback Owner’s Manual, printed page 685 / PDF page 687 (zero-based index 686), Engine Oil, change without filter, footnote *1: 1.5 L engine models - Conditional engine oil refill
- Not recorded
- Coolant capacityManual change capacity includes 0.58 L already remaining in the reserve tank; not dry fill and not the amount to pour into an empty container.
- 5.2 US qt
Verified
2021 Honda Civic Hatchback Owner’s Manual — ATGG2121OM / 31TGG6400
2021 Civic Hatchback Owner’s Manual, printed page 685 / PDF page 687 (zero-based index 686), Engine Coolant,1.5 L engine models, CVT footnote *1 - Automatic transmission fluid capacity
- Not recorded
- CVT fluid capacity
- Not recorded
- DCT fluid capacity
- Not recorded
- Manual transmission fluid capacity
- Not recorded
- Differential oil capacity
- Not recorded
- Front differential fluid capacity
- Not recorded
- Rear differential fluid capacity
- Not recorded
- Transfer-case fluid capacity
- Not recorded
- A/C refrigerant charge
- Not recorded
- Washer-fluid capacity
- Not recorded
Service specifications
7/17- Minimum fuel octane
- Not recorded
- Engine oil viscosity
- SAE 0W-20
Verified
2021 Honda Civic Hatchback Owner’s Manual — ATGG2121OM / 31TGG6400
2021 Civic Hatchback Owner’s Manual, printed page 582 / PDF page 584 (zero-based index 583), Recommended Engine Oil - Engine oil specification
- Premium-grade detergent engine oil bearing the API Certification Seal
Verified
2021 Honda Civic Hatchback Owner’s Manual — ATGG2121OM / 31TGG6400
2021 Civic Hatchback Owner’s Manual, printed page 582 / PDF page 584 (zero-based index 583), Recommended Engine Oil - Engine oil drain-plug torque
- 30 lb-ft
Verified
2021 Honda Civic Hatchback Owner’s Manual — ATGG2121OM / 31TGG6400
2021 Civic Hatchback Owner’s Manual, printed page 588 / PDF page 590 (zero-based index 589), Changing the Engine Oil and Oil Filter, step 8, drain bolt - Automatic transmission fluid
- Not recorded
- CVT fluid
- Honda HCF-2
Verified
2021 Honda Civic Hatchback Owner’s Manual — ATGG2121OM / 31TGG6400
2021 Civic Hatchback Owner’s Manual, printed page 591 / PDF page 593 (zero-based index 592), Continuously Variable Transmission Fluid - DCT fluid
- Not recorded
- Manual transmission fluid
- Not recorded
- Coolant specificationUse the supplied 50/50 mixture without adding straight antifreeze or water; consult a dealer for consistently colder-than -35°C conditions.
- Honda Long Life Antifreeze/Coolant Type 2, premixed 50/50
Verified
2021 Honda Civic Hatchback Owner’s Manual — ATGG2121OM / 31TGG6400
2021 Civic Hatchback Owner’s Manual, printed page 589 / PDF page 591 (zero-based index 590), Engine Coolant, specified coolant and premix instructions - Differential fluid
- Not recorded
- Transfer-case fluid
- Not recorded
- Brake fluid
- Honda Heavy Duty Brake Fluid DOT 3
Verified
2021 Honda Civic Hatchback Owner’s Manual — ATGG2121OM / 31TGG6400
2021 Civic Hatchback Owner’s Manual, printed page 592 / PDF page 594 (zero-based index 593), Brake/Clutch Fluid, specified fluid - Power-steering fluid
- Not recorded
- A/C refrigerant type
- Not recorded
- Spark-plug type
- NGK ILZKAR8H8S
Verified
2021 Honda Civic Hatchback Owner’s Manual — ATGG2121OM / 31TGG6400
2021 Civic Hatchback Owner’s Manual, printed page 684 / PDF page 686 (zero-based index 685), Engine Specifications, Spark Plugs - Spark-plug gap
- Not recorded
- Spark-plug torque
- Not recorded
Efficiency
9/12- EPA city
- 31 mpg (US)
Verified
FuelEconomy.gov vehicle record 43056, city08 - EPA highway
- 40 mpg (US)
Verified
FuelEconomy.gov vehicle record 43056, highway08 - EPA combined
- 34 mpg (US)
Verified
FuelEconomy.gov vehicle record 43056, comb08 - EPA city, alternate fuel
- Not recorded
- EPA highway, alternate fuel
- Not recorded
- EPA combined, alternate fuel
- Not recorded
- EPA unrounded adjusted city
- 31 mpg (US)
Verified
FuelEconomy.gov vehicle record 43056, city08U - EPA unrounded adjusted highway
- 40 mpg (US)
Verified
FuelEconomy.gov vehicle record 43056, highway08U - EPA unrounded adjusted combined
- 34 mpg (US)
Verified
FuelEconomy.gov vehicle record 43056, comb08U - EPA unadjusted city result
- 40.9
Verified
FuelEconomy.gov vehicle record 43056, UCity - EPA unadjusted highway result
- 58.7
Verified
FuelEconomy.gov vehicle record 43056, UHighway - EPA annual petroleum consumption
- 8.750294117647059 barrels/year
Verified
FuelEconomy.gov vehicle record 43056, barrels08
Range
0/4- Total range
- Not recorded
- Alternate-fuel range
- Not recorded
- Alternate-fuel city range
- Not recorded
- Alternate-fuel highway range
- Not recorded
Emissions
3/4- Tailpipe CO₂
- 259 g/mi
Verified
FuelEconomy.gov vehicle record 43056, co2TailpipeGpm - Emissions classification
- Not recorded
- EPA fuel-economy score
- 7
Verified
FuelEconomy.gov vehicle record 43056, feScore - EPA greenhouse-gas score
- 7
Verified
FuelEconomy.gov vehicle record 43056, ghgScore
Safety
0/3- Tire-pressure monitoring
- Not recorded
- Stability control
- Not recorded
- Driver-assistance suite
- Not recorded
Body
0/2- Roof
- Not recorded
- Aerodynamic equipment
- Not recorded
US safety ratings and recalls
Current NHTSA results for this model year, make, and model. Ratings are shown only for NHTSA-tested variants; recall applicability must be confirmed by VIN.
Loading current NHTSA data…
Sources used
Configuration identity and efficiency values come directly from the FuelEconomy.gov record. Marketing-trim names are not inferred where the government record does not state them.
2021 Honda Civic Hatchback Specifications — Honda Information Center
Original manufacturer specification table. Shared values require equality across applicable columns; equipment-dependent differences remain unresolved.
- Applies to
- United States, 2021 1.5 L Civic Hatchback, LX/Sport/EX/Sport Touring; only source-equivalent columns and exact transmission branches assigned
- Retrieved
- 2026-10-15
FuelEconomy.gov model-year bulk vehicle records
Official bulk configuration, engine, transmission, drivetrain, fuel-economy, volume, and emissions records; the official record API is the bounded fallback.
- Applies to
- United States, complete imported model years 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
- Retrieved
- 2026-08-31
2021 Honda Civic Hatchback Owner’s Manual — ATGG2121OM / 31TGG6400
Official hatchback manual. U.S. Maintenance Minder codes and 1.5/2.0 L engine/transmission footnotes are retained separately. The 2.0 L coolant table has an inconsistent gallon/litre pair; its numeric quantity is held pending clarification.
- Applies to
- United States, 2021 Civic Hatchback 1.5 L gasoline and 2.0 L Civic TYPE R; exact engine, transmission and equipment restrictions; source inconsistencies retained
- Retrieved
- 2026-10-15
WIX Filters 2021 application catalog, 99400
Manufacturer-authored information; exact application and document locators were reviewed. Third-party reproductions retain the original publisher attribution.
- Applies to
- United States
- Retrieved
- 2026-09-02