2010 Hyundai Sonata Engine Problems

NHTSA component category: ENGINE · data through 07/14/2026

29Engine complaints

8.4%Of all 345 complaints

#3Most-reported category

Source: U.S. NHTSA complaint data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.

How engine ranks on this vehicle

STRUCTURE:BODY135 · 39.1%

Unspecified / other36 · 10.4%

ENGINE29 · 8.4%

SERVICE BRAKES28 · 8.1%

STRUCTURE:BODY:DOOR28 · 8.1%

Share of the 345 complaints citing each category; one complaint can cite several. Full breakdown on the 2010 Hyundai Sonata overview page.

What owners report

“DELAYS IN ACCELERATION LINKED TO A COMPUTER PROGRAM THAT CONTROLS THE TRANSMISSION, SHIFTING FROM 1ST TO 2ND GEAR AUTOMATIC TRANSMISSION, THERE MAY BE A 2…”NHTSA complaint 10586601 — filed 05/05/2014

“AS I WAS DRIVING TO MAKE A TURN THE CAR SHUT DOWN WITHOUT WARNING. IT HAS HAPPENED TWO OTHER TIMES SINE THIS FIRST INCIDENT. CAR…”NHTSA complaint 10578017 — filed 04/07/2014

“THE DEALER REFUSED TO PERFORM WARRANTY WORK WHEN THE CHECK ENGINE LIGHT CAME ON UNLESS I AGREED TO PAY A FEE OF APPROXIMATELY $125 IF…”NHTSA complaint 10565893 — filed 02/25/2014

Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.

Engine complaints by year filed

Frequently asked questions

Does the 2010 Hyundai Sonata have engine problems?

Engine is the #3 most-reported problem area on the 2010 Hyundai Sonata: 29 of 345 complaints on file (8.4%). Complaints are unverified owner reports, not confirmed defects.

How many complaints does the 2010 Hyundai Sonata have in total?

345 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 19 involved a crash, 3 involved a fire, 19 reported injuries, and 2 reported deaths.

What does NHTSA's engine category include?

NHTSA assigns each complaint to standard component categories; this page reports the ENGINE 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 07/14/2026.