RAM 2500 2021–2022 — technical service bulletin
Bulletin 93335 · NHTSA communication 10244425 · issued Sep 7, 2023
Technical service bulletin
communication type
Fuel System, Diesel
component
2021–2022
model years
8
vehicle entries
Official summary
Warranty Bulletin D-22-16 - (X97) Diesel Particulate Filter (DPF) Select 2021 - 2022 Ram 2500 Pickup (DJ), 2021 - 2022 Ram 3500 Cab Chassis (DD), 2021 - 2022 Ram 3500 Pickup (D2) and 2021 - 2022 Ram 4500/5500 Cab Chassis (DP) (Rev. A)
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.