Home · 2026 Kia Carnival Hybrid Hev · Complaints

What 12 owners told NHTSA about the 2026 Kia Carnival Hybrid Hev

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (12)Fuel system (5)Transmission & drivetrain (4)Electrical system (3)Engine (3)Speed control (3)Backup camera & sensors (1)Brakes (1)Driver assistance (1)

1 of 12 complaints match · Driver assistance · clear filters

Jan 25, 2026Transmission & drivetrainSpeed controlDriver assistance

Driving on freeway with the heater on, Cold weather, car had multiple issue messages (transmission control unit and adaptive cruise control) as well as a check engine light come on as the car went limp and would not accelerate. Has to pull off of the freeway after nearly getting in multiple accidents due to losing speed from 65 mph to 30. Had the gas pedal all the way to the ground and the car would barely accelerate.

NHTSA ODI 11713243

Working with the data? Download all 12 complaints as CSV · fetched from NHTSA July 19, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2026 Kia Carnival Hybrid Hev verdict →