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2011 Hyundai Sonata Engine Problems

NHTSA component category: ENGINE · data through 07/12/2026

963Engine complaints
28.6%Of all 3,368 complaints
#2Most-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

STEERING1,162 · 34.5%
ENGINE963 · 28.6%
AIR BAGS414 · 12.3%
ELECTRICAL SYSTEM406 · 12.1%
EXTERIOR LIGHTING222 · 6.6%

Share of the 3,368 complaints citing each category; one complaint can cite several. Full breakdown on the 2011 Hyundai Sonata overview page.

Engine complaints by year filed

52012193220141791062016102101201899602020617220224833202435112026

Frequently asked questions

Does the 2011 Hyundai Sonata have engine problems?

Engine is the #2 most-reported problem area on the 2011 Hyundai Sonata: 963 of 3,368 complaints on file (28.6%). Complaints are unverified owner reports, not confirmed defects.

How many complaints does the 2011 Hyundai Sonata have in total?

3,368 complaints were on file with NHTSA as of 07/12/2026. Across all categories, 116 involved a crash, 111 involved a fire, 85 reported injuries, and 3 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 07/12/2026.