RAM 2500 2019–2020 — technical service bulletin
Bulletin S2018000007 · NHTSA communication 10223431 · issued May 14, 2021
Technical service bulletin
communication type
Engine and Engine Cooling
component
2019–2020
model years
8
vehicle entries
Official summary
Diagnostic Trouble Code (DTC) P0299 ? Turbocharger Underboost Additional Diagnostics
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.