Jeep Grand Wagoneer 2023 — technical service bulletin
Bulletin 08-163-25 · NHTSA communication 11018684 · issued May 21, 2025
Technical service bulletin
communication type
Electrical System
component
2023
model years
2
vehicle entries
Official summary
"Flash: Power Liftgate Module (PLGM) Software improvement Customers may experience one or more of the following: ● **Power Liftgate does not open or close the gate.** ● Liftgate does not operate with power, must operate manually. ● Double switch press causes the liftgate to go into manual mode. ● Battery drain after liftgate is closed following an opening obstruction This bulletin involves updating the PLGM 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.