Ford F-250 SD 2023 — technical service bulletin
Bulletin SSM 52099 · NHTSA communication 10245673 · issued Nov 30, 2023
Technical service bulletin
communication type
Electrical System
component
2023
model years
7
vehicle entries
Official summary
Some 2023 F-Super Duty chassis cab vehicles equipped with a 6.7L engine may exhibit an engine coolant temperature gauge reading at the high end of the normal range while towing in high ambient temperatures with no diagnostic trouble codes (DTC) or warning messages present in the instrument panel cluster (IPC). This may be due to the software in the IPC. To correct the condition, reprogram the IPC using the latest software level of the Ford Diagnosis and Repair System (FDRS) diagnostic scan tool. For claiming, use causal part 10849 and applicable labor operations in Section 10 of the Service La
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.