Jeep Grand Wagoneer 2023 — technical service bulletin
Bulletin S2321000008 · NHTSA communication 10248546 · issued Sep 1, 2023
Technical service bulletin
communication type
Power Train
component
2023
model years
2
vehicle entries
Official summary
Malfunction Indicator Lamp (MIL) Illumination, Diagnostic Trouble Codes (DTCs) P0731 ? Gear 1 Shift Incorrect Ratio, And/Or P07D9 ? Gear Shift Incorrect Ratio, Set.
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.