2021 Hyundai Elantra Hybrid BlueFuel Economy & MPG Ratings

Hybrid Midsize CarsFront-Wheel Drive
City
53
MPG
Highway
56
MPG
Combined
54
MPG

Trim Comparison

Automatic (AM-S6)
Regular Hybrid
City
53
Hwy
56
Comb
54
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
165 g/mile
Annual Petroleum Consumption
5.5 barrels

Specifications

Engine
1.6L 4-cyl
Transmission
Automatic
Drivetrain
FWD
Body Style
Sedan
GVWR
Class 1 (≤6,000 lbs)

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$1,247/yr
California
$5.957/gal$1,655/yr
Texas
$3.888/gal$1,080/yr
Florida
$4.136/gal$1,149/yr
New York
$4.522/gal$1,256/yr
Ohio
$4.510/gal$1,253/yr
Washington
$5.591/gal$1,553/yr
Colorado
$4.618/gal$1,283/yr
Minnesota
$4.344/gal$1,207/yr
Massachusetts
$4.448/gal$1,236/yr

Calculated at 15,000 miles/year (EPA standard assumption) using 54 MPG combined. Regular gasoline prices. Actual costs vary.

Recall History

Source: NHTSA

No recalls reported for this vehicle.

Owner-Reported Problems29 complaints

Source: NHTSA

NHTSA has received 29 owner complaints for the 2021 Hyundai Elantra Hybrid Blue. Top reported issues include electrical system, speed control and engine. The data below is sourced from consumer complaints filed directly with NHTSA.

Problems by System / Component

Electrical System
11
Speed Control
10
Engine
8
Brakes
5
Fuel System
3
Advanced Safety (ADAS)
3
Lighting
1
Power Train
1

2021 Hyundai Elantra Hybrid Blue problems by category: Electrical System: 11 complaints, Speed Control: 10 complaints, Engine: 8 complaints, Brakes: 5 complaints, Fuel System: 3 complaints, Advanced Safety (ADAS): 3 complaints, Lighting: 1 complaints, Power Train: 1 complaints.

Sample Owner Complaints

Electrical SystemFiled: 05/18/2025ODI#11661670
I am writing to report a serious and ongoing safety issue with my 2021 Hyundai Elantra Hybrid that remains unresolved despite multiple visits to Hyundai service centers and independent repair shops. I…
Electrical SystemFiled: 02/20/2024ODI#11572957
I was driving on the Highway at the posted speed limit when the warning "Check Forward Safety System" came up and remained on my dashboard. The cruise control stopped working also. The light remained …
Speed ControlFiled: 07/13/2021ODI#11424595
The contact owns a 2021 Hyundai Elantra. The contact stated that while pulling into the driveway, while slowing down, the vehicle inadvertently lunged forward. The vehicle seemed as though it was atte…

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 Elantra Hybrid Blue MPG History
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