2018 Hyundai Sonata Electrical System Problems
NHTSA component category: ELECTRICAL SYSTEM · data through 07/14/2026
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
Share of the 364 complaints citing each category; one complaint can cite several. Full breakdown on the 2018 Hyundai Sonata overview page.
What owners report
“THE LOCK FOR THE TRUNK , OPEN AUTOMATICLY , IT STAY LOCK AND WONT OPEN....”NHTSA complaint 11394872 — filed 02/05/2021
“CAR WILL NOT START WHEN KEY TURNED IN IGNITION WITH NO SOUND WHEN THE WEATHER IS UNDER 30 DEGREES. HAD IT IN THE DEALER LAST…”NHTSA complaint 11390662 — filed 01/29/2021
“I RENT THIS CAR FROM TOWER RENTALS I PAID 1300$ DAY BEFORE EASTER NO ONE WOULD COME GET IT FIX IT I'M IN QUEENS I…”NHTSA complaint 11322706 — filed 04/29/2020
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Electrical System complaints by year filed
Frequently asked questions
Does the 2018 Hyundai Sonata have electrical system problems?
Electrical System is the #3 most-reported problem area on the 2018 Hyundai Sonata: 56 of 364 complaints on file (15.4%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 2018 Hyundai Sonata have in total?
364 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 18 involved a crash, 13 involved a fire, 20 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.
