RAM 2500 2021–2022 — technical service bulletin
Bulletin 75607 · NHTSA communication 10221317 · issued Jun 29, 2021
Technical service bulletin
communication type
Engine and Engine Cooling
component
2021–2022
model years
8
vehicle entries
Official summary
Pending Emissions Recall and REQUIRED Customer Communication - Ram Heavy Duty/Chassis Cab
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.