2021 Hyundai Sonata reliability record
NHTSA consumer complaints and recall campaigns for the 2021 Hyundai Sonata from the dataset labeled 2026. The source file does not provide an exact snapshot date. Use the reported issues to guide further checks; these counts do not establish failure rates or repair costs.
- NHTSA complaints
- 167
- Dataset year: 2026; snapshot day not provided
- Top problem area
- ENGINE
- 32 complaints
- Recalls on record
- 4
- see below
- Reported harm
- 11 reported crashes · 24 injuries
How this record compares
raw NHTSA counts, not defect ratesCounts are not adjusted for vehicles sold, time in service or reporting frequency. A larger count does not establish a higher chance of failure, and these comparisons do not set the maintenance budget in our calculator.
Complaint rank
#2,971
of 4,194 vehicle records
Vs Hyundai median
-101
median 268 across 168 Hyundai records
Vs 2019-2023
-72
median 240 complaints in 444 records
Top component share
19%
Engine: 32 complaints
What owners report fails — 2021 Hyundai Sonata
- ENGINE 32
- UNKNOWN OR OTHER 29
- POWER TRAIN 20
- FUEL/PROPULSION SYSTEM 16
- ELECTRICAL SYSTEM 15
4 recalls on record for the 2021 Hyundai Sonata
- NHTSA 25V796000 · 2026 · FUEL SYSTEM, GASOLINE A melted fuel tank can leak, increasing the risk of a fire.
- NHTSA 22V746000 · 2023 · POWER TRAIN:AUTOMATIC TRANSMISSION Loss of drive power increases the risk of a crash.
- NHTSA 21V00M000 · 2022 · VISIBILITY:WINDSHIELD A windshield that detaches from a vehicle during a crash can increase the risk of injury.
- NHTSA 21V524000 · 2021 · FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LI A fuel leak increases the risk of a fire.
Estimate the 5-year cost to own a 2021 Hyundai Sonata
Build a separate budget with your purchase price, insurance quote, mileage and maintenance estimate. Complaint counts do not enter that calculation. Unknown local taxes and fees stay listed as costs to confirm.
Open TCO calculatorThese are unverified consumer reports and manufacturer recalls filed with the National Highway Traffic Safety Administration — not validated defect rates, and not adjusted for how many 2021 Hyundai Sonata units were produced or sold. High-volume and older vehicles naturally accumulate more complaints. Use this as one research signal, not a verdict on any individual vehicle. Dataset year: 2026; exact snapshot day not supplied. Source: NHTSA Office of Defects Investigation (public domain).
Frequently asked questions
Is the 2021 Hyundai Sonata reliable?
NHTSA has 167 consumer complaints on record for the 2021 Hyundai Sonata and 4 recalls. The most-reported problem area is engine (32 reports). These are unverified consumer reports filed with the government, not validated failure rates, and are not adjusted for how many 2021 Hyundai Sonata units were produced — popular vehicles naturally accumulate more reports.
What are the most common problems with the 2021 Hyundai Sonata?
Owners most often report problems with: engine (32), unknown or other (29), power train (20), fuel/propulsion system (16). Each figure is the number of complaints filed with NHTSA for this exact model year.
How much does it cost to own a 2021 Hyundai Sonata?
This complaint dataset does not measure repair prices or predict a maintenance budget for the 2021 Hyundai Sonata. Use your purchase price, insurance quotes, fuel use and a maintenance estimate in the separate five-year cost calculator. It does not convert complaint counts into repair costs, and any unknown taxes remain excluded and clearly listed.