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NHTSA Recall 21V936000: Master cylinder (service brakes)

Kia Motors America reported this safety recall to NHTSA on , covering an estimated 87 vehicles. It affects 2020–2021 Kia Rio.

87
vehicles potentially affected
1
model affected
2022
owners notified (January 11)
NHTSA campaign21V936000
Manufacturer campaignSC223
ComponentSERVICE BRAKES, HYDRAULIC › FOUNDATION COMPONENTS › MASTER CYLINDER
Report receivedDecember 1, 2021
Owner notificationJanuary 11, 2022
Initiated byManufacturer

Defect

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.

Safety 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.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

Vehicles covered by recall 21V936000

Make and modelModel years
Kia Rio2020, 2021

Being listed here means the campaign covers the model year, not that every car was built with the defect or is still unrepaired. Enter your VIN above to check your specific vehicle. Recall repairs are free at authorised dealers. Source: NHTSA, October 2026.