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2012 Hyundai Sonata Electrical System Problems

NHTSA component category: ELECTRICAL SYSTEM · data through 07/14/2026

228Electrical System complaints
14.7%Of all 1,551 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 electrical system ranks on this vehicle

ENGINE563 · 36.3%
STEERING298 · 19.2%
ELECTRICAL SYSTEM228 · 14.7%
AIR BAGS168 · 10.8%
SERVICE BRAKES151 · 9.7%

Share of the 1,551 complaints citing each category; one complaint can cite several. Full breakdown on the 2012 Hyundai Sonata overview page.

What owners report

“THE LIGHTS ON THE CAR WOULD NOT SHUT OFF WHEN LOCKING AND ACTIVATING ALARM. I RESTARTED THE CAR AND SHUT IT OFF AGAIN, THEN THEY…”NHTSA complaint 10531935 — filed 07/26/2013
“CRUISE CONTROL WOULD NOT DISENGAGE BY HITTING CANCEL OR TURNING IT OFF. IT WOULD ONLY DISENGAGE BY DEPRESSING BRAKE PEDAL. I HAVE BEEN HAVING PROBLEMS…”NHTSA complaint 10520279 — filed 06/17/2013
“WHILE DRIVING AT A LOW SPEED, APPROXIMATELY 30 MPH AND SLOWING TO A TRAFFIC LIGHT, THE ENTIRE ELECTRICAL SYSTEM ON MY 2012 HYUNDAI SONATA GLS…”NHTSA complaint 10513517 — filed 05/25/2013

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

Electrical System complaints by year filed

7201211920145122016173020182924202017172022221320241132026

Frequently asked questions

Does the 2012 Hyundai Sonata have electrical system problems?

Electrical System is the #3 most-reported problem area on the 2012 Hyundai Sonata: 228 of 1,551 complaints on file (14.7%). Complaints are unverified owner reports, not confirmed defects.

How many complaints does the 2012 Hyundai Sonata have in total?

1,551 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 51 involved a crash, 94 involved a fire, 38 reported injuries, and 1 reported deaths.

What does NHTSA's electrical system category include?

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