Most-reported problems

Across 44 owner complaints filed on the 2025 Kia K4

• Electrical System27%
• Unknown or Other27%
• Engine16%
• Lane Departure16%
• Power Train16%
• Air Bags14%

Share of complaints naming each system — a signal of what owners report most on this model, not a failure rate. The denominator is people who filed a complaint, not every owner. Complaints are filed with the US regulator; the same models are sold in Canada.

Safety recalls

2 campaigns issued by the manufacturer

• Engine and Engine Cooling · Critical Fasteners

  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.

  Campaign 25V548000

• Electrical System · Instrument Cluster/panel

  Kia America, Inc. (Kia) is recalling certain 2025 Kia K4, 2025-2026 Sorento, Sorento Hybrid, Sorento Plug-In Hybrid Electric (PHEV), 2026 Sportage, Sportage Hybrid, Sportage PHEV, K5, EV9, Carnival, and Carnival Hybrid vehicles. Due to a software error, the instrument panel display may fail. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) numbers 101, "Controls and Displays" and 138, "Tire Pressure Monitoring System."

  Campaign 26V046000

Recall campaigns are manufacturer-issued and fixed free of charge. This is the US campaign set matched by year, make and model — it is not a check against a specific VIN, and Canadian campaigns may differ.