2021 Hyundai IoniqFuel Economy & MPG Ratings

Hybrid Large CarsFront-Wheel Drive
2021 Hyundai Ioniq

Photo: TTTNIS. CC0. via Wikimedia Commons

City
54
MPG
Highway
56
MPG
Combined
55
MPG

Trim Comparison

Automatic (AM-S6)
Regular Hybrid
City
54
Hwy
56
Comb
55
Fuel cost: $1,250/yr
Annual Fuel Cost
$1,250

Based on gasoline at $3.67/gal, 15,000 miles/year

5-Year Fuel Savings
$5,750

vs. average new vehicle

EPA Fuel Economy Score: 10/10
GHG Score: 10/10

Environment

CO₂ Tailpipe Emissions
162 g/mile
Annual Petroleum Consumption
5.4 barrels

Specifications

Engine
1.6L 4-cyl
Transmission
Automatic
Drivetrain
FWD
Body Style
Sedan

Source: EPA fuel economy data & NHTSA vPIC. Specifications reflect the most common trim configuration.

Engine & Efficiency Details

Source: EPA fueleconomy.gov

Engine Size
1.6L, 4-cylinder
Induction Type
SIDI; Hybrid
Efficiency Tech
Auto Start-Stop
Fuel Type
Regular Gasoline

Annual Fuel Cost by State

Prices as of week ending May 18, 2026 · Source: EIA

National AvgEPA default
$4.490/gal$1,225/yr
California
$5.957/gal$1,625/yr
Texas
$3.888/gal$1,060/yr
Florida
$4.136/gal$1,128/yr
New York
$4.522/gal$1,233/yr
Ohio
$4.510/gal$1,230/yr
Washington
$5.591/gal$1,525/yr
Colorado
$4.618/gal$1,259/yr
Minnesota
$4.344/gal$1,185/yr
Massachusetts
$4.448/gal$1,213/yr

Calculated at 15,000 miles/year (EPA standard assumption) using 55 MPG combined. Regular gasoline prices. Actual costs vary.

Recall History

Source: NHTSA

No recalls reported for this vehicle.

Owner-Reported Problems1 complaints

Source: NHTSA

NHTSA has received 1 owner complaints for the 2021 Hyundai Ioniq. Top reported issues include electrical system. The data below is sourced from consumer complaints filed directly with NHTSA.

Problems by System / Component

Electrical System
1

2021 Hyundai Ioniq problems by category: Electrical System: 1 complaints.

Sample Owner Complaints

Electrical SystemFiled: 06/20/2023ODI#11527960
The contact owns a 2021 Hyundai Ioniq EV. The contact stated that on several occasions the vehicle would not start or could not be restarted after being turned off. The vehicle was towed to the local …

Complaint data is sourced from the NHTSA Complaints Database. Reports are filed by vehicle owners and may not reflect confirmed defects. Last updated via NHTSA API.

Related

Hyundai Ioniq MPG History
See how this model's fuel economy changed by year

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