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Service bulletins for the 2012 Dodge Challenger

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

166 on file from NHTSA, as of 2026-10-19.

About B146A on the 2012 Dodge Challenger: what the code means, and the bulletins and recalls about the same components.

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Only bulletins with trouble code: B146A are shown. Show all

Bulletins, newest first
08-056-142022-08-15. Service bulletin. EQUIPMENT:APPLIANCE:TV/RADIO/SPEAKERS; EQUIPMENT:ELECTRICAL; EQUIPMENT; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. No Audio From The Radio Caused By The Amplifier Muting Audio This bulletin involves replacing the Amplifier if required. The customer may indicate that there is no audio sound and/or radio is muted. This may happen when the audio is at a higher volume. The audio system will mute and remains ?muted? until the key is cycled. The audio system may defaults to surround sound after a key cycle. On further inspection one or more of the following DTCs may be found: B1460-92 Channel 1 Audio Speaker Output-Performance or Incorrect Operation. B1465-92 Channel 2 Audio Speaker Output-Performance or Incorrect Operation. B146A-92 Channel 3 Audio Speaker Output-Performance or Incorrect Operation. B146F-92 Channel 4 Audio Speaker Output-Performance or Incorrect Operation. B1474-92 Channel 5 Audio Speaker Output-Performance or Incorrect Operation. B1479-92 Channel 6 Audio Speaker Output-Performance or Incorrect Operation. B147E-92 Channel 7 Audio Speaker Output-Performance or Incorrect Operation. B1483-92 Channel 8 Audio Speaker Output-Performance or Incorrect Operation. B14B9-92 Channel 9 Audio Speaker Output-Performance or Incorrect Operation. B14BE-92 Channel 10 Audio Speaker Output-Performance or Incorrect Operation. B14C3-92 Channel 11 Audio Speaker Output-Performance or Incorrect Operation. B14C8-92 Channel 12 Audio Speaker Output-Performance or Incorrect Operation.
08-033-132022-07-18. Service bulletin. ELECTRICAL SYSTEM. Flash: Two Or More Speakers Will Mute When Playing Certain Media Sources This bulletin involves reprogramming the Amplifier with updated software. The customer may experience two or more speakers muting when playing certain media sources, which have frequencies of less then 20 Hz. The speakers will stay muted until the ignition key is cycled. On further inspection the technician will find speaker performance DTC's. B1460-92Channel 1 Audio Speaker Output-Performance or Incorrect Operation. B1465-92Channel 2 Audio Speaker Output-Performance or Incorrect Operation. B146A-92Channel 3 Audio Speaker Output-Performance or Incorrect Operation. B146F-92Channel 4 Audio Speaker Output-Performance or Incorrect Operation. B1474-92Channel 5 Audio Speaker Output-Performance or Incorrect Operation. B1479-92Channel 6 Audio Speaker Output-Performance or Incorrect Operation. B147E-92Channel 7 Audio Speaker Output-Performance or Incorrect Operation. B1483-92Channel 8 Audio Speaker Output-Performance or Incorrect Operation. B14B9-92Channel 9 Audio Speaker Output-Performance or Incorrect Operation. B14BE-92Channel 10 Audio Speaker Output-Performance or Incorrect Operation. B14C3-92Channel 11 Audio Speaker Output-Performance or Incorrect Operation. B14C8-92Channel 12 Audio Speaker Output-Performance or Incorrect Operation. B221F-00Amplifier Internal.
08-033-132021-03-15. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:APPLIANCE:TV/RADIO/SPEAKERS. Flash: Two Or More Speakers Will Mute When Playing Certain Media Sources This bulletin involves reprogramming the Amplifier with updated software. The customer may experience two or more speakers muting when playing certain media sources, which have frequencies of less then 20 Hz. The speakers will stay muted until the ignition key is cycled. On further inspection the technician will find speaker performance DTC's. B1460-92Channel 1 Audio Speaker Output-Performance or Incorrect Operation. B1465-92Channel 2 Audio Speaker Output-Performance or Incorrect Operation. B146A-92Channel 3 Audio Speaker Output-Performance or Incorrect Operation. B146F-92Channel 4 Audio Speaker Output-Performance or Incorrect Operation. B1474-92Channel 5 Audio Speaker Output-Performance or Incorrect Operation. B1479-92Channel 6 Audio Speaker Output-Performance or Incorrect Operation. B147E-92Channel 7 Audio Speaker Output-Performance or Incorrect Operation. B1483-92Channel 8 Audio Speaker Output-Performance or Incorrect Operation. B14B9-92Channel 9 Audio Speaker Output-Performance or Incorrect Operation. B14BE-92Channel 10 Audio Speaker Output-Performance or Incorrect Operation. B14C3-92Channel 11 Audio Speaker Output-Performance or Incorrect Operation. B14C8-92Channel 12 Audio Speaker Output-Performance or Incorrect Operation. B221F-00Amplifier Internal.
08-056-142018-06-18. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT:ELECTRICAL. No Audio From The Radio Caused By The Amplifier Muting Audio This bulletin involves replacing the Amplifier if required. The customer may indicate that there is no audio sound and/or radio is muted. This may happen when the audio is at a higher volume. The audio system will mute and remains ?muted? until the key is cycled. The audio system may defaults to surround sound after a key cycle. On further inspection one or more of the following DTCs may be found: B1460-92 Channel 1 Audio Speaker Output-Performance or Incorrect Operation. B1465-92 Channel 2 Audio Speaker Output-Performance or Incorrect Operation. B146A-92 Channel 3 Audio Speaker Output-Performance or Incorrect Operation. B146F-92 Channel 4 Audio Speaker Output-Performance or Incorrect Operation. B1474-92 Channel 5 Audio Speaker Output-Performance or Incorrect Operation. B1479-92 Channel 6 Audio Speaker Output-Performance or Incorrect Operation. B147E-92 Channel 7 Audio Speaker Output-Performance or Incorrect Operation. B1483-92 Channel 8 Audio Speaker Output-Performance or Incorrect Operation. B14B9-92 Channel 9 Audio Speaker Output-Performance or Incorrect Operation. B14BE-92 Channel 10 Audio Speaker Output-Performance or Incorrect Operation. B14C3-92 Channel 11 Audio Speaker Output-Performance or Incorrect Operation. B14C8-92 Channel 12 Audio Speaker Output-Performance or Incorrect Operation.
08-033-132018-05-21. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM. Flash: Two Or More Speakers Will Mute When Playing Certain Media Sources This bulletin involves reprogramming the Amplifier with updated software. The customer may experience two or more speakers muting when playing certain media sources, which have frequencies of less then 20 Hz. The speakers will stay muted until the ignition key is cycled. On further inspection the technician will find speaker performance DTC's. B1460-92Channel 1 Audio Speaker Output-Performance or Incorrect Operation. B1465-92Channel 2 Audio Speaker Output-Performance or Incorrect Operation. B146A-92Channel 3 Audio Speaker Output-Performance or Incorrect Operation. B146F-92Channel 4 Audio Speaker Output-Performance or Incorrect Operation. B1474-92Channel 5 Audio Speaker Output-Performance or Incorrect Operation. B1479-92Channel 6 Audio Speaker Output-Performance or Incorrect Operation. B147E-92Channel 7 Audio Speaker Output-Performance or Incorrect Operation. B1483-92Channel 8 Audio Speaker Output-Performance or Incorrect Operation. B14B9-92Channel 9 Audio Speaker Output-Performance or Incorrect Operation. B14BE-92Channel 10 Audio Speaker Output-Performance or Incorrect Operation. B14C3-92Channel 11 Audio Speaker Output-Performance or Incorrect Operation. B14C8-92Channel 12 Audio Speaker Output-Performance or Incorrect Operation. B221F-00Amplifier Internal.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.