2020 Kia RIO problems, complaints & recalls

2020 Kia RIO recalls (1)

• Recall 21V936000Dec 1, 202187 vehicles
  SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER

  Kia Motors America (Kia) is recalling certain 2020-2021 Rio vehicles. The brake master cylinder may have been manufactured with sharp edges that can damage the inner oil seal, resulting in reduced braking performance.

  Risk: Reduced braking performance can cause longer brake pedal travel or extend the distance required to stop the vehicle, increasing the risk of a crash.

  Remedy: Dealers will replace the brake master cylinder, free of charge. Owner notification letters were mailed January 11, 2022. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall SC223.

Recent 2020 Kia RIO complaints

Excerpts of the newest owner complaints, lightly cleaned of personal details. Complaints are unverified owner reports.

1. Filed Aug 30, 2026IDElectrical SystemOther / UnknownSeats & Seat Belts

   My 2020 Kia Rio S caught fire spontaneously while parked and unattended for 5 hours at my work parking lot. The vehicle was turned off and had not been involved in a collision. I was notified of the fire after it had already started. The fire caused catastrophic damage to the passenger compartment and resulted in a total loss of the vehicle. Component/system suspected: The exact component that initiated the fire has not yet been determined. Based on the circumstances, I am…

   NHTSA complaint #11760758 · source
2. Filed Mar 17, 202628,000 miWATransmission & Drivetrain

   The contact owns a 2020 Kia Rio. The contact stated that while coming to a stoplight, the vehicle unexpectedly stalled. There was no warning light illuminated. The vehicle did not need to be restarted. The vehicle was taken to the dealer; however, the vehicle was not diagnosed or repaired. The contact was informed by the dealer that the failure could not be duplicated. The manufacturer was not made aware of the failure. The approximate failure mileage was 28,000.

   NHTSA complaint #11725043 · source
3. Filed Sep 30, 2025AZBrakes

   Upon stopping at a red light and or stop sign, when applying brakes, the car continues to move forward, even after pumping the brakes. Vehicle has been diagnosed by a certified auto mechanic. The findings and recommendation for the Brake Master Cylinder to be the reason the vehicle continues to creep forward, when brake are applied and held. This issue has on two separate occasions near collision, because the vehicle wouldn't stop.

   NHTSA complaint #11690648 · source
4. Filed Jun 9, 2025MSTransmission & Drivetrain

   I was driving up a hill and it would not go past 20-30 mph, and the rpm will sometimes go up when not accelerating. The transmission does not shift when driving and will sometimes make the car stop and go stop and go continuously. Tried accelerating but the rpm would go up while the mph would not.

   NHTSA complaint #11665742 · source
5. Filed Apr 6, 2025INFireElectrical SystemOther / Unknown

   I went into a rural King store to shop when I came back out my car was completely filled with smoke. I opened the front passengerdoor and the smoke hit me in the face it was so thick and green it was just it took my breath. It took me 10 minutes to locate what had happened and down on the door frame of the passenger side of the front seat where the wiring is there was a whole melted all the way through that panel and you could see the wiring was exposed so I assume that the…

   NHTSA complaint #11653010 · source
6. Filed Mar 9, 2025INFireElectrical System

   I came out of a store last week and there was smoke inside my car and when I opened the door there was a hole down by the door frame on the passenger side that it burned all the way through to the frame of the car and now my lights are flashing on and off and sometimes a passenger headlight works sometimes the driver had light works but it's either one or the other it's doing all kinds of crazy stuff with the lights now I'm thinking it has to be in the electrical fire…

   NHTSA complaint #11647263 · source
7. Filed Oct 27, 2024TXEngine

   Recall SC223 Brake master cylinder. Rough metal edges can pinatrate Seals causing leaks poor braking functionality. NHTSA Capaign ID# 21V936000. Nov.30th.2021, 87 vehicles effected. Clay Cooley kia refused to honor the recall and fix the problem with my vehicle on 10/25/2024. Recall on the catalytic converters. Recall SC176 , Carbon monoxide poisoning due to exhaust systems malfunctioning and exhaust coming through the AC system. When I took my 2020 Rio S to Vanguard Kia…

   NHTSA complaint #11622150 · source
8. Filed Sep 19, 2023GAEngine

   When I first purchased the car less than 90 days the engine light came on rook back to the dealership and notified Kia they didn't know why the engine light came on they said just drive it then I later told then engine light came on again and it act to over heat they said they had no signs when they did a diagnostic test they. I reported when the ac is on the engine light comes on and the car hesitates as if to stall they still saying they see nothing to indicate any…

   NHTSA complaint #11545350 · source

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Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data, as of Oct 10, 2026. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology