There are 2 owner-reported tires & wheels complaints for the 2021 Kia Sedonain NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
The first of four tire failures (all the same DOT Number) of the OEM tires that were on the 2021 Kia Sedona when purchased in April, 2021. The first tire belt broke when on an approximate 1000 mile drive and was replaced on an emergency basis on January 24, 2024 with 16,760 miles on the vehicle. The second tire belt broke on the trip home and was replaced on an emergency basis on March 8, 2024 with 18,927. After arriving home, the tires were inspected, found to have defective belts and were replaced with a warranty adjustment by Discount Tire in Oswego with 19,191 miles. Kumho has still not honored the warranty by sending checks for the first two defective tires. (Can't find receipt from warranty replacement by Discount Tires but will continue looking. Have many photos of defective tire if desired.)
The contact owns a 2021 Kia Sedona equipped with Kumho Tires, Tire Line: Crugen, Tire Size :235/65/R17, DOT Number: (N/A). The contact stated that while driving 80 MPH, there was an abnormal vibration coming from the tires. The vehicle was taken to an independent mechanic to be diagnosed. The contact was informed of tread separation to the driver’s and passenger’s side rear tires. The tires were replaced. The tires were the original tires. The dealer was not contacted. The manufacturer was not notified of the failure. The failure mileage was unknown.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 25, 2026