RAM 2500 2019–2020 — technical service bulletin

Bulletin S2018000007 Rev. · NHTSA communication 10188769 · issued Feb 22, 2021

Technical service bulletin

communication type

Engine and Engine Cooling

component

2019–2020

model years

vehicle entries

Official summary

Diagnostic Trouble Code (DTC) P0299 ? Turbocharger Underboost Additional Diagnostics

Vehicles covered

2019 RAM 2500
2020 RAM 2500
2019 RAM 3500
2020 RAM 3500
2019 RAM 4500
2020 RAM 4500

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.