Service bulletins for the 2023 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.
161 on file from NHTSA, as of 2026-10-19.
About B1E21 on the 2023 Dodge Challenger: what the code means, and the bulletins and recalls about the same components.
By type
By component
By trouble code
Only bulletins with trouble code: B1E21 are shown. Show all
| 08-394-25 REV. A | 2025-12-17. Service bulletin. ELECTRICAL SYSTEM. Telematics Box Module (TBM) Backup Battery Replacement When DTC B1E21 Is Present Technicians may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● B1E21-96 - Backup Battery Component Internal Failure. |
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| 08-394-25 | 2025-12-11. Service bulletin. ELECTRICAL SYSTEM. Telematics Box Module (TBM) Backup Battery Replacement When DTC B1E21 Is Present echnicians may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● B1E21-96 - Backup Battery Component Internal Failure |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.