YearToAvoid

2023 Kia EV6 Engine Problems

NHTSA lists 22 Engine-area complaints for the 2023 Kia EV6, 16% of its 137 total complaints. No related recalls are logged in this category, though owner narratives reference separate ICCU-related recalls handled under other systems.

Engine complaints
22
16% of 137
Crashes reported
0
Fires reported
0
Injuries reported
0
Median mileage
—
Related recalls
0

Typical engine symptoms owners report

  • Owners report sudden loss of power or drive while underway, with the car dropping from highway speed down to 12-25 mph in limp mode.
  • Several complaints describe ICCU (integrated charging control unit) failure triggering a check-electrical-system or check-power-supply warning before the vehicle loses power.
  • Some owners report the failure recurred even after a recall service was performed on the ICCU or related software.
  • One owner reported the cooling system repeatedly losing coolant with no confirmed diagnosis, raising concern about overheating.
  • One owner reported a rear motor inverter failure that cut power completely while driving, requiring the car to be diagnosed and the inverter replaced.

When 2023 Kia EV6 engine complaints were filed

First complaint Jul 21, 2023, latest Sep 20, 2026.

2023 Kia EV6 engine complaints: complaints filed per month3Jul 2023Jul 2024Jan 2025Apr 2025Mar 2026Aug 2026
22 complaints filed with NHTSA from Jul 2023 to Sep 2026; peak Apr 2025 (3).

Engine recalls for the 2023 Kia EV6

No safety recalls on record for this model year.

Engine complaints by EV6 model year

Raw complaint counts per model year; newer years have had less time to accumulate complaints.

  1. 202223 (8%)
  2. 202322 (16%)
  3. 202410 (14%)
  4. 20257 (13%)

Frequently asked questions

How many engine-related complaints does the 2023 Kia EV6 have?
NHTSA lists 22 complaints filed under the Engine area for the 2023 Kia EV6, which is 16% of the 137 total complaints filed for that model year.
Is there a recall for the 2023 Kia EV6 engine or power system?
No recalls are logged specifically under this Engine complaint category in NHTSA data, but several owner complaints in the sample reference separate ICCU-related recalls (such as 24V867 and SC327) that were performed on their vehicles.
What is the most common engine-area problem reported?
The most frequently described pattern is a sudden loss of power or drive while driving, often tied to an ICCU fault that puts the car into a limited-speed limp mode.
Were there any crashes or fires linked to these complaints?
NHTSA data shows 0 crashes and 0 fires among the 22 Engine-area complaints for the 2023 Kia EV6.
Did recall repairs fix the reported power loss issue?
Some owners reported that the power loss and ICCU warning recurred even after a recall-related repair was completed on their vehicle.

Sources: NHTSA Office of Defects Investigation complaint and recall databases; U.S. EPA fuel economy data; NHTSA 5-Star Safety Ratings. Complaints are unverified owner reports.

Data updated Sep 24, 2026. Read the methodology and data sources. The Complaint Index is based on NHTSA owner complaints and recalls; it is not a reliability rating.