Research · Midsize Cars · 2 NHTSA variants

2021 Hyundai ElantraRecalls, problems, MPG & safety

NHTSA lists 6 safety recalls and 132 owner complaints for the 2021 Hyundai Elantra. Most complaints involve forward collision avoidance (32) and electrical system (31). The EPA rates it 28–37 mpg combined, and NHTSA gives it 5 stars overall.

Combined MPG
28–37mpg
EPA · 4 versions
NHTSA overall
5of 5 stars
NCAP crash tests
Safety recalls
6campaigns
Latest Nov 2024
Owner complaints
132
Top: forward collision avoidance
Fuel cost / yr
$1,750est.
EPA estimate, best version
01 —Recalls

Safety recalls

6 NHTSA campaigns · applies to some vehicles, check your VIN

Back over prevention: camera

Free remedy

Hyundai Motor America (Hyundai) is recalling certain 2021-2022 Santa Fe, Santa Fe HEV, Elantra, Elantra HEV and 2022 Elantra N and Santa Fe PHEV vehicles. Due to a damaged printed circuit board, the rearview camera image may fail to display. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."

Back over preventionReported Nov 21, 2024NHTSA 24V879000

Seat belts: front

Free remedy

Hyundai Motor America (Hyundai) is recalling certain 2020-2022 Accent, 2021-2022 Elantra, and 2021-2022 Elantra HEV vehicles. In the event of a crash, the front driver-side and/or passenger-side seat belt pretensioners may explode upon deployment.

Seat beltsReported May 19, 2022NHTSA 22V354000

Seat belts: front

Remedy pending

Hyundai Motor America (Hyundai) is recalling certain 2021-2022 Elantra and 2020 Accent vehicles. In the event of a crash, the front driver and passenger-side seat belt pretensioners may explode upon deployment.

Seat beltsReported Apr 1, 2022NHTSA 22V218000
Data from NHTSA Recalls API · synced Nov 3, 2026 · All recall detailsNHTSA vehicle page
02 —Complaints

Owner complaints by component

132 complaints filed with NHTSA · Feb 2021 – Oct 2026
  1. Forward collision avoidance32
  2. Electrical system31
  3. Seat belts27
  4. Engine13
  5. Vehicle speed control10
  6. Service brakes8
  7. Power train7
  8. Lane departure6
  9. Exterior lighting5

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

By model year

Complaints for each Elantra model year we’ve synced.

View as table
Model yearNHTSA complaints
1996101
1997118
199856
1999133
2000200
2001329
2002348
2003234
2004182
2005137
2006155
2007267
2008316
2009287
2010455
2011461
2012676
20131,330
2014387
2015262
2016293
2017770
2018284
2019252
2020254
2021132
2022102
2023101
202456
202522
20263
Crashes reported
8
Fires reported
1
Injuries reported
3
Deaths reported
1
Data from NHTSA Complaints API · synced Nov 3, 2026 · Full problem breakdownNHTSA vehicle page
03 —Common problems

What owners report most

Verbatim excerpts from NHTSA complaints, by component

Forward collision avoidance

32 reports1 crash
“The Forward collision warning light comes on randomly at times and disables the system. It’s done this on 3 occasions. No one has inspected the vehicle. I was told everything was normal. No injuries involved. The problem has occurred 3 times now with code c1620078. The history codes show this has happened to the previous owner as well. I bought it in 7/2025 and it happened driving it home from buying it, in 11/25, and 12/10/25”
Owner complaint to NHTSAFiled Dec 11, 2025Forward collision avoidanceODI 11704616

Electrical system

31 reports1 fire
“my car has 60,000 miles and the horns on the car have been replaced 3 times Hyundai issued an extended warranty for the horns on certain 2021-2025 model year ELANTRA, 2022-2025 model year ELANTRA N and 2021-2025 model year ELANTRA Hybrid vehicles' for the 10 years or 120,000 miles from the date of original retail delivery I don't know what world this is acceptable in but it's not acceptable too me after have 3 sets of horns replaced”
Owner complaint to NHTSAFiled Oct 14, 2026Electrical systemODI 11771253

Seat belts

27 reports2 crashes
“I bought my car at McGrath Hyundai in chicago in May 2021. It’s been in their shop 30 plus times for various and repeated issues. As of late, over the last 6 months, I have reported to them and to Hyundai, my drivers side seat belt won’t retract properly and the high mounted brake light warning continuously goes off, a dinging, stating that there is an issue. Hyundai and McGrath repeatedly misdiagnosed and refused to fix these issues when they were first brought to their attention when under 60,000 miles. NOW that the car is over 60,000 miles, conveniently they’re stating that it’s out of warranty and will cost $2k. The technicians and service advisor Christine Tonelli at McGrath, knowingly and willfully misdiagnosed my car, attempting to cover up the issues stating that there was no issue. They said the seat belt was fine and the wiring wasn’t the issue for the high mount d brake light and kept changing the bulb. They knew it should have known there was a seat belt issue with it not retracting and the same with the high mount d brake light. Suddenly after 60,000 miles, they now state I was right the whole time by telling me it will be $2000 to fix it. I have…”
Owner complaint to NHTSAFiled Feb 20, 2026Exterior lighting, Seat beltsODI 11719531
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 3, 2026
04 —Key specs

Engines, transmissions & drive

4 versions rated by the EPA
EPA class
Midsize Cars
Engines
2.0L 4-cyl · 1.6L 4-cyl turbo
Transmissions
Automatic (AV-S1) · Automatic (AM-S7) · Manual 6-spd
Drive
Front-Wheel Drive
Fuel
Regular Gasoline

Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.

Data from EPA fueleconomy.gov · synced Nov 3, 2026EPA listing
05 —Fuel economy

EPA fuel economy by version

City / highway / combined, annual fuel cost and CO₂
EPA
VersionCityHwyComb.Fuel / yrCO₂ g/mi
Elantra
Auto (AV-S1), 4 cyl, 2.0 L, Stop-Start · Front-Wheel Drive
334337$1,750244
Elantra
Auto (AV-S1), 4 cyl, 2.0 L · Front-Wheel Drive
314135$1,850257
Elantra
Auto (AM-S7), 4 cyl, 1.6 L, Turbo, SIDI · Front-Wheel Drive
283631$2,050288
Elantra
Man 6-spd, 4 cyl, 1.6 L, Turbo, SIDI · Front-Wheel Drive
253428$2,300318
  • Elantra
    Auto (AV-S1), 4 cyl, 2.0 L, Stop-Start
    33 city · 43 hwy · $1,750/yr
    37
    mpg comb.
  • Elantra
    Auto (AV-S1), 4 cyl, 2.0 L
    31 city · 41 hwy · $1,850/yr
    35
    mpg comb.
  • Elantra
    Auto (AM-S7), 4 cyl, 1.6 L, Turbo, SIDI
    28 city · 36 hwy · $2,050/yr
    31
    mpg comb.
  • Elantra
    Man 6-spd, 4 cyl, 1.6 L, Turbo, SIDI
    25 city · 34 hwy · $2,300/yr
    28
    mpg comb.
Data from EPA fueleconomy.gov · synced Nov 3, 2026 · Fuel cost is EPA’s annual estimate (15,000 mi, 55% city)
06 —Safety

NHTSA 5-Star Safety Ratings

2 tested variants
Overall rating
5/ 5
5 of 5
Hyundai Elantra 4 DR FWD
Frontal crash
4 of 5
Side crash
5 of 5
Side pole
5 of 5
Rollover
5 of 5
Rollover risk
10.1%
Overall
5 / 5
Hyundai Elantra N-Line 4 DR FWD
Frontal crash
4 of 5
Side crash
5 of 5
Side pole
5 of 5
Rollover
5 of 5
Rollover risk
10.1%
Data from NHTSA NCAP Safety Ratings API · synced Nov 3, 2026Vehicle 15697Vehicle 15699
07 —Maintenance

Maintenance basics

General guidance, not the OEM schedule. Check your owner’s manual.
General guidance
ItemMilesTimeNote
Engine oil & filter5,000–10,000 mi6–12 monthsFollow the oil-life monitor if fitted
Tire rotation5,000–7,500 miEvery oil changeCheck pressure monthly
Engine air filter15,000–30,000 mi1–2 yearsSooner in dusty areas
Cabin air filter15,000–25,000 mi1–2 years
Brake fluid—2–3 yearsAbsorbs moisture over time
Coolant60,000–100,000 mi5–10 yearsLong-life coolants last longer
Spark plugs60,000–100,000 mi—Iridium/platinum plugs at the long end
12V battery—3–5 yearsHeat shortens battery life
  • Engine oil & filter5,000–10,000 mi
    6–12 months
  • Tire rotation5,000–7,500 mi
    Every oil change
  • Engine air filter15,000–30,000 mi
    1–2 years
  • Cabin air filter15,000–25,000 mi
    1–2 years
  • Brake fluid—
    2–3 years
  • Coolant60,000–100,000 mi
    5–10 years
  • Spark plugs60,000–100,000 mi
    —
  • 12V battery—
    3–5 years
Typical intervals for modern cars. Severe service (towing, short trips, extreme heat or cold) shortens them.
09 —FAQ

2021 Elantra questions

How many recalls does the 2021 Hyundai Elantra have?

6 safety recalls as of Nov 3, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.

What are the most common 2021 Hyundai Elantra problems?

Owners filed 132 complaints with NHTSA. The most-cited components are forward collision avoidance (32), electrical system (31), seat belts (27). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.

What MPG does the 2021 Hyundai Elantra get?

The EPA rates the 2021 Hyundai Elantra at 28–37 mpg combined, depending on engine and drivetrain (4 versions rated).

How safe is the 2021 Hyundai Elantra?

NHTSA's New Car Assessment Program gives the 2021 Hyundai Elantra 5 out of 5 stars overall.

Data from NHTSA & EPA · synced Nov 3, 2026