Service bulletins for the 2021 Ford Mustang
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.
148 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: High-voltage battery are shown. Show all
| TSB 22-2153 | 2022-05-12. Service bulletin. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:MANAGEMENT SYSTEM/ENERGY CONTROL MODULE (BMS/BECM):SOFTWARE. This article supersedes TSB 21-2011 to update the vehicle model years affected and Service Procedure. Some 2018-2022 Mustang vehicles may exhibit various concerns with the active exhaust system. These may include Drive Mode Not Available or Exhaust Mode Not Available messages, and/or illuminated malfunction indicator lamp (MIL) with diagnostics trouble codes (DTCs) P26C5, P26C6, P26FE, P2BF9, P2BFB, P26C7, P2BF5, P2BF8, P2BFD and/or P2BFA. This may be due to an improperly seated exhaust system. To correct the condition, follow the Service Procedure to diagnose the tailpipe actuator . |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.