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October 24, 2023 Service bulletin

Illuminated brake warning indicator with diagnostic trouble codes (DTC) C0047 and/or P0557 present

Ford technical service bulletin SSM 52015 for 2023 Ford F-250 SD, 2023 Ford F-350 SD and 2023 Ford F-450 SD and others.

Bulletin number
SSM 52015
Component
Service brakes
Summary
Some 2023 F-Super Duty vehicles equipped with vacuum assist brakes and built on or before 01-Aug-2023 may exhibit an illuminated brake warning indicator with diagnostic trouble codes (DTC) C0047 and/or P0557 present. This may be due to the brake vacuum sensor. To correct the condition, remove and replace the brake vacuum sensor, part NK4Z-2C444-A. To prevent repeat concerns, install the sensor with the electrical connector pointed towards the identification label on the vacuum brake booster.

Owners of these vehicles have filed 12 complaints in the brakes category.

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