Campaign 21V-936

Brake master cylinder may have been manufactured with sharp edges that can damage the inner oil seal, resulting in reduced braking performance

Defect summary

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.

Consequence

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.

Source: NHTSA ODI recalls file, campaign 21V936000. Text as published by NHTSA.

Vehicles covered

One product line is covered

Owner complaints filed with NHTSA about brakes on these vehicles: 6, of which 2 involved a crash, fire, injury or death. Complaints are not verified by NHTSA.

Vehicles covered by campaign 21V-936
Make	Model	Model years	Complaints on this component
Kia	RIO	2020 to 2021	6

Source: NHTSA ODI recalls and complaints files. Equipment, tire and child-seat campaigns list products, not vehicles.

Investigation

No NHTSA investigation is linked to this recall

Most recalls are started by the manufacturer. This one lists "Manufacturer" as its origin.

Before the recall

1 service bulletin on this component came first

Distinct manufacturer communications on the same component group, make, model and model year in the 24 months before the report date.

Source: NHTSA manufacturer communications file.

Service bulletins

24V-693 Sep 17, 2024
Software error may cause the remote smart parking assist feature, which allows the operator to remotely move the vehicle, to miscalculate stopping…
23V-652 Sep 25, 2023
Hydraulic Electronic Control Unit (HECU) may experience an electrical short, which can result in an engine compartment fire while parked or driving
23V-410 Jun 7, 2023
Brake booster diaphragm may become misaligned and cause an internal vacuum leak, which can result in a loss of power brake assist
22V-800 Oct 24, 2022
Engine compartment fire originating from around the Hydraulic Electronic Control Unit (HECU) may occur while parked or driving
22V-322 May 11, 2022
Software error in the Shifter Control Unit (SCU) may disengage the parking mechanism, which can allow the vehicle to rollaway
22V-051 Feb 2, 2022
Hydraulic Electronic Control Unit (HECU) module could malfunction and cause an electrical short, which could result in an engine compartment fire