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October 5, 2021 Service bulletin

Partial repair of c-mdps motor, ECU, worm gear and/or steering column housing

Kia technical service bulletin TSB_CHA084_R8 for 2011-2022 Kia Sorento, 2011-2020 Kia Optima and 2010-2021 Kia Soul and others.

Bulletin number
TSB_CHA084_R8
Component
Steering
Summary
TECHNICAL SERVICE BULLETIN: PARTIAL REPAIR OF C-MDPS MOTOR, ECU, WORM GEAR AND/OR STEERING COLUMN HOUSING - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides information regarding the partial repair of the Motor Driven Power Steering (MDPS) Motor, Electronic Control Unit (ECU), Steering Column Housing, or Worm Gear Assembly. When the steering wheel is rotated a scraping noise can be heard originating from the lower bearing on the Worm Gear Assembly on some 2010MY~ Kia models listed on page 8, equipped with a Column Motor Driven Power Steering (C-MDPS) unit. On some vehicles when the steering wheel is rotated a scraping noise can be heard originating from the lower bearing on the Worm Gear Assembly and does not affect the steering effort.

Owners of these vehicles have filed 1,913 complaints in the steering category.

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