RAM 2500 2020–2021 — technical service bulletin
Bulletin 9004380 · NHTSA communication 10198301 · issued May 26, 2021
Technical service bulletin
communication type
Power Train
component
2020–2021
model years
4
vehicle entries
Official summary
SOLENOID, Transmission 2020 and 2021MY D2&DJ Before swapping the solenoid module on a repeatable P0755 or P0765, please ensure to download event data and send to contact copied below. This event data will assist with the root cause analysis of the module. Contact: FCA Redacted Content
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.