2020 Hyundai Sonata Fuel/propulsion System Problems
NHTSA component category: FUEL/PROPULSION SYSTEM · data through 09/08/2026
Source: U.S. NHTSA complaint data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.
How fuel/propulsion system ranks on this vehicle
Share of the 178 complaints citing each category; one complaint can cite several. Full breakdown on the 2020 Hyundai Sonata overview page.
What owners report
“I was driving back from Atlanta, GA to Pensacola, FL when we noticed our fuel level dropping significantly. We stopped in West Point, GA to…”NHTSA complaint 11619567 — filed 10/13/2024
“The component that failed is the fuel tank system. While driving, the fuel tank expanded, causing significant damage to the rear section of the vehicle…”NHTSA complaint 11619292 — filed 10/11/2024
“Gas tank replaced three times and failed each installation (excess pressure)leaked gas with riders in car. I was a LYFT driver .YES car can be…”NHTSA complaint 11618701 — filed 10/08/2024
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Fuel/propulsion System complaints by year filed
Frequently asked questions
Does the 2020 Hyundai Sonata have fuel/propulsion system problems?
Fuel/propulsion System is the most-reported problem area on the 2020 Hyundai Sonata: 45 of 178 complaints on file (25.3%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 2020 Hyundai Sonata have in total?
178 complaints were on file with NHTSA as of 09/08/2026. Across all categories, 5 involved a crash, 1 involved a fire, 4 reported injuries, and none reported deaths.
What does NHTSA's fuel/propulsion system category include?
NHTSA assigns each complaint to standard component categories; this page reports the FUEL/PROPULSION SYSTEM category exactly as NHTSA defines and records it.
