2021 Kia Sportage: Electrical System complaints
Owner-reported issue (NHTSA complaints, not a recall)
Symptoms
NHTSA has 6 owner complaints for the 2021 Kia Sportage that list the electrical system component. Complaints are individual owner reports, not verified defects.
Examples:
- NHTSA complaint ODI #11748804 (filed 07/07/2026): “The contact owns a 2021 kia sportage. the contact stated that while parked on several occasions, a "battery discharge warning" message was displayed, which disappeared once the vehicle was driven. the contact then stated that on several occasions after the vehicle sat unoperated for a day, the engin…”
- NHTSA complaint ODI #11690967 (filed 10/02/2025): “The contact owns a 2021 kia sportage. the contact stated that her mother was driving at an undisclosed speed on the freeway and had stopped on the shoulder of the road to access the navigation system. the contact stated that after the driver shifted to park(p), the driver noticed smoke. the contact'…”
- NHTSA complaint ODI #11673246 (filed 07/14/2025): “The car alarm keeps going off randomly and from googling it. several people have reported an issue with the 2021 kia sportage it’s a known issue.…”
Likely causes
These complaints do not establish a single root cause; read the examples above and get a diagnosis.
Fix, in plain English
No single fix is established by these reports. Check your VIN for open recalls at nhtsa.gov/recalls, ask a dealer about technical service bulletins (TSBs) or extended warranty coverage, then have the system diagnosed.
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 for this issue. Get a written quote after diagnosis.
Typical parts (search links, no affiliate codes)
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Sources
Page last updated .