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Kia K4 and Sorento engines may lose drive power

NHTSA campaign 25V548000 · Reported 2025-08-25 · Kia America, Inc.

high How serious is it? About this label

Losing engine power in traffic or at highway speed is a real crash risk; the notice does not tell owners to park the vehicle, but this is an engine replacement, so schedule it as soon as your dealer can take you.

What's wrong, in plain English

Inside the engine of some 2025 Kia K4 and Sorento vehicles, bolts on the connecting rods — parts that move up and down as the engine runs — may not have been tightened enough when the engine was built. If a bolt works loose, the engine can fail and the vehicle can suddenly lose power while you are driving. Because the damage is inside the engine, Kia dealers will replace the lower engine assembly at no charge.

What you should do

1. Enter your VIN at nhtsa.gov/recalls to check whether your car is affected. 2. Call your Kia dealer and book the engine replacement — expect the car to be in the shop for a while. 3. The repair is free; Kia customer service is 800-333-4542, recall number SC349.

Affected vehicles (2)

Who to contact

Kia — official Kia recall lookup

Customer service: 1-800-333-4542

Any franchised dealer for the brand can do the repair. Phone numbers are taken from manufacturer sites and recent NHTSA notices; if one has changed, the number in your own recall letter is the one to use.

The bigger picture

Official notice

Component
ENGINE AND ENGINE COOLING:CRITICAL FASTENERS
Summary
Kia America, Inc. (Kia) is recalling certain 2025 K4 and Sorento vehicles. The connecting rod bolts in the engine may have been improperly tightened, which can cause a loss of drive power.
Safety risk
A loss of drive power increases the risk of a crash.
Remedy
Dealers will replace the sub engine assembly, free of charge. Owner notification letters are expected to be mailed September 12, 2025. Owners may contact Kia customer service at 800-333-4542. Kia's number for this recall is SC349.

Verify your specific vehicle by VIN at nhtsa.gov. Recall repairs are free of charge by law.