Jeep Wrangler 2016 — technical service bulletin
Bulletin 21-012-17 · NHTSA communication 10217573 · issued Mar 22, 2017
Technical service bulletin
communication type
Back Over Prevention
component
2016
model years
1
vehicle entries
Official summary
Transfer Case Input Seal Leak This bulletin involves replacing the transfer case input gear and seal. The customer may experience red fluid weeping from under their vehicle and showing up on the ground. Customers may also describe transfer case noise coming from the vehicle while in four wheel drive. These issues are typically observed at less than one month in service at an average of 1,097 km (682 mi).
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.