Jeep Wrangler 2021 — technical service bulletin
Bulletin 0817823 · NHTSA communication 10242816 · issued Jul 20, 2023
Technical service bulletin
communication type
Electrical System
component
2021
model years
1
vehicle entries
Official summary
Power Inverter Module (PIM) Replacement Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following DTCs have been set: ? P0A78-00 - Drive Motor A Inverter Performance. ?P0A79-00 - Drive Motor B Inverter Performance. Customer may also experience the following: ? Internal Combustion Engine (ICE) propulsion only and no EV or hybrid mode only when these DTCs are present. This bulletin involves replacing the PIM.
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.