Jeep Wrangler 2021 — technical service bulletin
Bulletin 0816823 · NHTSA communication 10242798 · issued Jul 13, 2023
Technical service bulletin
communication type
Electrical System
component
2021
model years
1
vehicle entries
Official summary
Flash: Battery Pack Control Module (BPCM) Diagnostic and System Updates Customers may experience a false Malfunction Indicator Lamp (MIL) illumination related to PHEV battery: ? P0A80-00 - Contactor Wear Counter Limit Reached. ? P0EDD-00 - Hybrid/EV Battery Pack B Deterioration. Customers may also experience one or more of the following: ? Battery light on the Instrument Panel Cluster (IPC). This bulletin involves updating the BPCM with the latest available software
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.