RAM 2500 2025 — technical service bulletin
Bulletin S2507000001 · NHTSA communication 11018601 · issued May 20, 2025
Technical service bulletin
communication type
Engine
component
2025
model years
4
vehicle entries
Official summary
Engine Block Heater Cord Not Fully Installed From The Factory. Discussion: During Pre-Delivery Inspection (PDI) you will notice that the engine block heater cord is not installed on the engine block.
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.