2023 Kia EV6 Transmission & Power Train Problems

NHTSA component category: POWER TRAIN · data through 07/14/2026

24Power Train complaints

18.3%Of all 131 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 power train ranks on this vehicle

ELECTRICAL SYSTEM97 · 74%

FUEL/PROPULSION SYSTEM29 · 22.1%

POWER TRAIN24 · 18.3%

Unspecified / other15 · 11.5%

ENGINE13 · 9.9%

Share of the 131 complaints citing each category; one complaint can cite several. Full breakdown on the 2023 Kia EV6 overview page.

What owners report

“ICCU Failure. It's been replaced by Kia under warranty. Initially Level 2 charging failed multiple times. Luckily mine didn't die on the road, but it…”NHTSA complaint 11725085 — filed 03/17/2026

“The ICCU failed. The vehicle suddenly stopped on the road, would not go into any gear and could not be moved whatsoever, was stuck on…”NHTSA complaint 11722077 — filed 03/04/2026

“1st instance: Battery Coolant errors that occurred on and off. 2nd instance: The ICCU unit failed and car was not able to charge via level…”NHTSA complaint 11721594 — filed 03/02/2026

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

Power Train complaints by year filed

Frequently asked questions

Does the 2023 Kia EV6 have transmission & power train problems?

Power Train is the #3 most-reported problem area on the 2023 Kia EV6: 24 of 131 complaints on file (18.3%). Complaints are unverified owner reports, not confirmed defects.

How many complaints does the 2023 Kia EV6 have in total?

131 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 2 involved a crash, 0 involved a fire, 0 reported injuries, and none reported deaths.

What does NHTSA's power train category include?

NHTSA groups complaints about the transmission (automatic or manual), driveline, axles, transfer case and related parts under a single component category called POWER TRAIN. This page reports that category as NHTSA defines 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.