RAM 1500 2021 — technical service bulletin
Bulletin 18-091-22 · NHTSA communication 10214592 · issued May 3, 2022
Technical service bulletin
communication type
Electrical System
component
2021
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 one or more of the following: An engine stall at low engine mileage and mostly low vehicle speeds 16 - 24kph (10 - 15 mph). LED light in the Start/Stop button will not illuminate when pressed.
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.