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2021 Kia K5 Electrical System Problems

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

43Electrical System complaints
27.9%Of all 154 complaints
#1Most-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

ELECTRICAL SYSTEM43 · 27.9%
Unspecified / other31 · 20.1%
ENGINE26 · 16.9%
POWER TRAIN16 · 10.4%

Share of the 154 complaints citing each category; one complaint can cite several. Full breakdown on the 2021 Kia K5 overview page.

What owners report

“Air/hearing works intermittently. I’ve had fuses replaced and this seems to be a known and ongoing issue that Kia refuses to acknowledge. Many have reported…”NHTSA complaint 11674755 — filed 07/19/2025
“Having issues with the blower motor and harness which is a known issue with this car. I can’t keep my AC working plus my defroster…”NHTSA complaint 11662629 — filed 05/22/2025
“Main wiring harness melted in my fuse box, had to pay $5000 to replace, turbo leaked into my engine and cause for the engine to…”NHTSA complaint 11661765 — filed 05/19/2025

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

Electrical System complaints by year filed

1202022021320223202314202412202582026

Frequently asked questions

Does the 2021 Kia K5 have electrical system problems?

Electrical System is the most-reported problem area on the 2021 Kia K5: 43 of 154 complaints on file (27.9%). Complaints are unverified owner reports, not confirmed defects.

How many complaints does the 2021 Kia K5 have in total?

154 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 7 involved a crash, 2 involved a fire, 7 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.