2025 Kia Carnival Hybrid engine problems
20 owner complaints filed with NHTSA name the engine on the 2025 Kia Carnival Hybrid — 33% of all complaints for this model year.
What owners report
“My vehicle keeps throwing a code “check hybrid system” and slowing me down to 30mph, it will not accelerate. This is extremely dangerous. I can restart the car and it’s fine but this is a major safety issue considering it keeps happening”
filed Sep 6, 2026
“My 2025 Kia Carnival Hybrid is experiencing repeated electrical and hybrid battery failures. The battery has died multiple times, and the vehicle has shut off while driving, including at higher speeds. When the vehicle shuts off, all electrical systems reset, warning lights flash, and the dashboard…”
filed Jul 26, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Engine problems in other Carnival Hybrid years
| Year | Reports | Share |
|---|---|---|
| 2026 Carnival Hybrid | 4 | 19% |
Other reported problem areas on the 2025 Kia Carnival Hybrid
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.