RAM Promaster 2017 — technical service bulletin
Bulletin 18-095-22 · NHTSA communication 10214616 · issued May 17, 2022
Technical service bulletin
communication type
Electrical System
component
2017
model years
1
vehicle entries
Official summary
Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code (DTC) has been set: P0556 - Brake Booster Pressure Sensor Circuit Performance.
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.