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B143D on the 2025 Jeep Gladiator

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

This code is specific to a manufacturer and is not described here. Its meaning is in the manufacturer's service information.

Bulletins for this model year that name B143D
08-369-252025-11-13. Service bulletin. SOS Light Is On Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● B143A-13 - Microphone 1 - Circuit Open. ● B143D-13 - Microphone 2 - Circuit Open. Customers may also comment on one or more of the following: ● SOS light is illuminated. ● Customer can hear incoming calls but can't be heard on the other end. This bulletin involves replacing the **Microphone, Audio** assembly.

1 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.