RAM 1500 2022 — technical service bulletin
Bulletin 08-093-22 REV. B · NHTSA communication 10229790 · issued Dec 2, 2022
Technical service bulletin
communication type
Power Train
component
2022
model years
1
vehicle entries
Official summary
Flash: Hybrid Control Processor (HCP) Updates This bulletin involves updating the HCP with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more ofthe following DTCs have been set: U0402-00 - Implausible Data Received From TCM. P1C64 - Hybrid Perf - Engine Speed Below Target During Autostart. In addition, the following software enhancement is available: Engine Stop/Start (ESS) improvements - Improvements to make ESS more smooth/consistent. Customers may complain of rough or inconsi
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.