Jeep Wagoneer 2023 — technical service bulletin
Bulletin 1805923 · NHTSA communication 10239943 · issued May 13, 2023
Technical service bulletin
communication type
Electrical System
component
2023
model years
1
vehicle entries
Official summary
Flash: Powertrain Control Module (PCM) Updates Customers may experience the following: ? Poor or reduced air conditioning performance during wide open throttle or heavy acceleration. This bulletin involves reprogramming the PCM 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.