2021 Honda Civic maintenance schedule

The 2021 Civic is part of the 10th Gen (2016-2021), sold as a sedan, coupe and hatchback. Below: its service intervals with the source behind each one, the fluids it takes, the problems owners report for this year, and the NHTSA recalls issued for it.

Service schedule

What the 2021 Civic needs, and when

Manufacturer rows link to Honda's own schedule, Independent rows to a service shop or parts retailer's published guide.

ServiceIntervalSource
Engine oil and filter (L15B7, K20C1)

Strict 5k limit for 1.5T/Type R

5,000 mi / 1 yearIndependent
Engine air filter

Maintenance Minder sub-code 2

30,000 mi / 2 yearsIndependent
Cabin air filter

Maintenance Minder sub-code 2

30,000 mi / 2 yearsIndependent
Tire rotation

Maintenance Minder sub-code 1

7,500 miIndependent
Brake fluid

Replace every 3 years regardless of mileage

3 yearsIndependent
Engine coolant

Initial replacement at 120k/10yrs, then every 60k/5yrs

120,000 mi / 10 yearsIndependent
Transmission fluid

Replace every 30k for CVT longevity

30,000 miIndependent
Spark plugs

Maintenance Minder sub-code 4

60,000 miIndependent
Serpentine belt

Inspect interval; replace as needed

30,000 miIndependent
12V battery

Test lifespan / inspect connections

15,000 mi / 3 yearsIndependent

Intervals are for normal driving; towing, short trips, extreme heat or dust shorten them. Services we could not find an interval for are left off rather than guessed.

Fluids and engines

What goes in it

Engine oil
0W-20
Coolant
Type 2
Transmission fluid
HCF-2 / MTF

Powertrains in this generation

  • 2.0L 4-cyl (K20C2), 158 hp, CVT, 6MT, FWD
  • 1.5L 4-cyl (L15B7), 174 hp, CVT, 6MT, FWD
  • 1.5L 4-cyl (L15B7 (Si)), 205 hp, 6MT, FWD
  • 2.0L 4-cyl (K20C1 (Type R)), 306 hp, 6MT, FWD

Confirm the exact spec against the owner's manual or the label under the hood; capacities vary by engine and drivetrain.

Known problems

What 2021 Civic owners run into

Problems reported for this model year, with the mileage they tend to show up at. Buying past a window is not automatically a pass - it just needs to be priced in.

1.5T Oil Dilution

medium severity

30,000-50,000 mi · $0-$400 to fix

Rising oil levels, sharp fuel scent on dipstick, reduced efficiency in cold weather

Source: avturo.com

A/C Condenser Failure

medium severity

30,000-80,000 mi · $0-$1,100 to fix

A/C blows warm air; refrigerant loss

Source: avturo.com

Safety recalls

4 NHTSA recalls for the 2021 Honda Civic

From NHTSA's recall database, matched by model and year. Recall repairs are free at Honda dealers, and a given car may already be fixed or fall outside a campaign, so check the VIN at nhtsa.gov/recalls before you buy.

May 2026

Honda (American Honda Motor Co.) is recalling certain 2018-2021, 2023 Acura TLX, 2019-2024 RDX, 2017-2020, 2022-2026 MDX, 2017-2021, 2023, 2025 Honda Ridgeline, 2017-2022 Pilot, 2019-2021 Passport, 2018-2026 Odyssey, 2019-2022 Insight, 2019-2021 HR-V, 2018-2020 Fit, 2020-2022 CR-V Hybrid, 2017-2022 CR-V, 2017-2018, 2021 Civic Type R, 2017-2021 Civic hatchback, 2016-2020 Civic coupe, 2016-2022 Civic, 2017-2022 Accord Hybrid, and 2016-2022 Accord vehicles. The front passenger seat weight sensor may crack and short circuit, which can cause the air bags to deploy unintentionally during a crash.

Remedy: Dealers will replace the seat weight sensors, free of charge. Owner notification letters were mailed July 7, 2026. Owners may contact Honda's customer service at 1-888-234-2138. Honda's numbers for this recall are BOL, WO9, OOA, WOM, XOH, NOC, POD, BOE, UOF, POB, EOG, AOI, QO8, TOJ, DO7, and SOK. This recall expands previous NHTSA recall number 24V064. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning May 29, 2026.

February 2024

Honda (American Honda Motor Co.) is recalling certain 2020-2022 Pilot, Accord, Civic sedan, HR-V, Odyssey, 2020 Civic coupe, Fit, 2021-2022 Civic hatchback, 2021 Civic Type R, Insight, 2020-2021 CR-V, CR-V Hybrid, Passport, Ridgeline, Accord Hybrid, 2020 Acura MDX, 2022 Acura MDX, 2020-2022 Acura RDX, and 2020-2021 Acura TLX vehicles. The front passenger seat weight sensor may crack and short circuit, failing to suppress the air bag as intended.

Remedy: Dealers will replace the seat weight sensors, free of charge. Owner notification letters were mailed March 28, 2024. This is a phased recall. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for these recalls are XHP and VHQ.

Fuel system, gasoline

NHTSA 23V858000

December 2023

Honda (American Honda Motor Co.) is recalling certain 2013-2023 Honda Accord, Civic Coupe, Civic Sedan, Civic Hatchback, Civic Type R, CR-V, HR-V, Ridgeline, Odyssey, Acura ILX, MDX, MDX Hybrid, RDX, RLX, TLX, 2019-2022 Honda Insight, Passport, 2020 Honda CR-V Hybrid, 2018-2019 Honda Clarity PHEV, Fit, and 2015-2020 Honda Accord Hybrid, Pilot, Acura NSX vehicles. The fuel pump inside the fuel tank may fail.

Remedy: Dealers will replace the fuel pump module, free of charge. Owner letters were mailed September 6, 2024. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for this recall are KGC and KGD. This recall is an expansion of NHTSA recall numbers 21V-215 and 20V-314.

Service brakes, hydraulic

NHTSA 23V458000

June 2023

Honda (American Honda Motor Co.) is recalling certain 2020-2021 Civic, 2020-2023 Ridgeline, 2021-2023 Passport, 2021-2022 Pilot, and 2020 Acura MDX vehicles. The tie rod fastener that connects the brake booster and the brake master cylinder may have been improperly assembled during manufacturing, which can cause the brake master cylinder to separate from the booster assembly.

Remedy: Dealers will inspect and repair the brake booster assembly as necessary, free of charge. Owner notification letters were mailed August 7, 2023. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for this recall are VEU, AEV, and ZET.

Running costs

What maintenance typically costs

A typical year of maintenance
$368

Typical US independent-shop estimates for this generation; they vary by region and condition.

Other Civic model years

11th Gen (2022-2026)

10th Gen (2016-2021)

9th Gen (2012-2015)

Shopping new? The Honda Civic guide covers the current model, with what it costs to keep for 1 to 15 years.

Sources

Researched 2026-09-16. Modeling, not mechanic advice - always confirm against your car's owner's manual and service records.

Running a Civic for income?

Carlyle scores the exact listing on cost per remaining mile and projected Turo income, so you know what a 2021 Civic earns before you buy it.

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