2019 Hyundai Sonata: Alarm goes off when entering car
Common wear/failure (not a recall)
Symptoms
Owners of the 2019 Sonata report: alarm goes off when entering car. CarComplaints.com lists 1 owner complaints, average mileage 50 miles.
NHTSA has 12 owner complaints for the 2019 Sonata in this area. Examples:
- NHTSA complaint ODI #11733342 (filed 04/23/2026): “I wanted to report the failure of my rear camera and/or the electrical circuit that is tied to it. it's my understanding that hyundai has issued multiple recalls across different years/vehicles for issues in this area. my 2019 sonata is not included in those…”
- NHTSA complaint ODI #11732956 (filed 04/22/2026): “On april 14, 2026, my 2019 hyundai sonata was parked at a retail store parking lot. returning from the store, i attempted to start the car, and it did not start. i attempted to start it again, and i saw smoke coming out from under the hood. i immediately exite…”
Likely causes
Sources do not establish a single root cause; diagnosis is needed. Owner-reported fixes are listed below.
Fix, in plain English
Most common owner-reported solutions on CarComplaints.com: none clearly reported. Check for open recalls and extended warranty coverage with a dealer before paying out of pocket.
DIY difficulty: Moderate
Finding and splicing chewed wiring is doable with a multimeter and patience but can be time-consuming; harness replacement is pro work. (Our assessment.)
Cost
No sourced cost range: get a written quote after diagnosis.
Typical parts (search links, no affiliate codes)
AutoZone · O'Reilly · Advance · RockAuto
Sources
Page last updated .