Jeep Wrangler 2021 — technical service bulletin
Bulletin 08-056-22 · NHTSA communication 10214607 · issued May 13, 2022
Technical service bulletin
communication type
Equipment Adaptive/mobility
component
2021
model years
1
vehicle entries
Official summary
Flash: Hybrid Control Processor (HCP) and Auxiliary Hybrid Control Processor (AHCP) Updates This bulletin involves reprogramming the HCP and AHCP or also known as Power Inverter Module (PIM) with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs). P061B-00 - Internal Control Module Torque Calculation Performance. P061B-00 DTC may set after driving on snow/ice in 2WD and Traction Control System (TCS) turned off. P06A3-00 - Sensor R
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.