2015 Hyundai Sonata Fuel/propulsion System Problems

NHTSA component category: FUEL/PROPULSION SYSTEM · data through 09/08/2026

74Fuel/propulsion System complaints

6.5%Of all 1,142 complaints

#5Most-reported category

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

ENGINE621 · 54.4%

Unspecified / other164 · 14.4%

ELECTRICAL SYSTEM161 · 14.1%

POWER TRAIN133 · 11.6%

FUEL/PROPULSION SYSTEM74 · 6.5%

Share of the 1,142 complaints citing each category; one complaint can cite several. Full breakdown on the 2015 Hyundai Sonata overview page.

What owners report

“1ST EVENT JUNE 10 2016 - CAR STOPPED ON THE FWY AT SPEED OVER 65 MPH. STEPPED ON THE GAS PEDAL AND WAS NO POWER…”NHTSA complaint 10886157 — filed 07/20/2016

“WENT TO PASS A TRACTOR. NOTICE THE CAR WAS NOT DOWN SHIFTING. PUSHED HARDER ON THE PEDAL AND HEARD A CLICK. AFTER THAT THE CAR…”NHTSA complaint 10715518 — filed 05/10/2015

“SONATA COMES WITH A 18.5 GAL GAS TANK. UPON FILL UP CAR WILL ONLY TAKE A MAXIMUM OF 12 GALLONS. THE SUPPOSED "RANGE" OF THE…”NHTSA complaint 10712020 — filed 04/21/2015

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 2015 Hyundai Sonata have fuel/propulsion system problems?

Fuel/propulsion System is the #5 most-reported problem area on the 2015 Hyundai Sonata: 74 of 1,142 complaints on file (6.5%). Complaints are unverified owner reports, not confirmed defects.

How many complaints does the 2015 Hyundai Sonata have in total?

1,142 complaints were on file with NHTSA as of 09/08/2026. Across all categories, 34 involved a crash, 48 involved a fire, 32 reported injuries, and 2 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.

About this data — Complaint figures on this page are consumer reports submitted to the National Highway Traffic Safety Administration (NHTSA), a U.S. government agency. NHTSA does not verify individual complaints; a complaint is not proof that a defect exists, and counts reflect what owners chose to report, not confirmed failure rates. Recall information comes from official NHTSA safety recall campaigns; recall repairs are free at authorized dealers. Always check your specific vehicle by VIN at nhtsa.gov/recalls. CarModelProblems.com is an independent site and is not affiliated with NHTSA or any vehicle manufacturer. Data through 09/08/2026.