Service bulletin SSM 54742

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
Type	Service bulletin
NHTSA id	11031305
Published by NHTSA	2026-04-14
Manufacturer's number	SSM 54742
Manufacturer's date	2026-04-13
NHTSA component	ENGINE; UNKNOWN OR OTHER; ELECTRICAL SYSTEM

NHTSA's summary

Some 2025-2026 Mustang GTD vehicles may set diagnostic trouble code (DTC) U0420:82 in the image processing module a (IPMA) during a diagnostic self-test. This may be due to the module's DTC sensitivity during vehicle key-on/start-up. Replacement or reprogramming of the IPMA module may not resolve this condition. If no other DTCs are present, no warning indicators are illuminated while the engine is running, and no noticeable symptoms are present, no additional diagnostics or service is recommended for this condition at this time. Inform customers engineering is currently working on a solution for this condition that is expected in Q2 2027. Monitor Professional Technician System (PTS) for additional information and schedule service appointments for customers once the repair becomes available. If this condition is encountered, use the "Submit Global Concern Report (GCR)" link at the upper right of the Vehicle ID tab to submit a report and reference this article number in the report.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Engine

Trouble codes named

U0420

Vehicles listed
FORD MUSTANG GTD	2026

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
SSM 55237	2026-10-13. Service bulletin. Some 2025-2026 Mustang GTD vehicles built on or before 28-Sep-2026 may exhibit one or more of the following hydraulic system warning messages displayed in the instrument panel cluster (IPC): "Suspension Fault Speed Limited to 80 MPH", "Driver Selectable Suspension Fault", "Front Lift Not Available", "Drive Mode Not Available" and/or "Active Aero Fault". Diagnostic trouble codes (DTC) U0037, U0759, U075A, U075B, U075C, C0086, U0416, C1041, C1119, C1A03:A2, C1A04:A2, C1A05:A2, C1A06:A2, and/or P0EA7:19 may also be stored in the vehicle dynamics module (VDM) and/or powertrain control module (PCM). <br/><br/> This condition may be caused by VDM software that incorrectly detects or reports a suspension or hydraulic system fault. To correct the condition, reprogram the VDM using the latest software level of the Ford Diagnosis and Repair System (FDRS). For claiming, use causal part 18B008 and labor operations 12651D and 12651D4.
TSB 26-2297	2026-06-29. Service bulletin. Some of the vehicles listed in the model statement above equipped with SYNC4 may experience a blank center display screen or black center display after welcome animation. The rear-view camera will still function when shifting the vehicle to reverse under these conditions.