Jeep Wrangler 2023–2026 — technical service bulletin
Bulletin 9100749 · NHTSA communication 11027644 · issued Jan 7, 2026
Technical service bulletin
communication type
Power Train
component
2023–2026
model years
8
vehicle entries
Official summary
axle seal We have observed that some JL/JT rear axle shafts are leaking oil. Replace axle shaft and seal together. Do not replace seal only. Keep original seal and axle shaft and send the parts as fast track.
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.