Toyota 4RUNNER 2013–2015 — technical service bulletin
Bulletin T-TT-0334-15 · NHTSA communication 10111404 · issued Apr 14, 2015
Technical service bulletin
communication type
Power Train
component
2013–2015
model years
3
vehicle entries
Official summary
TT: Certain vehicles may exhibit a leak from the input shaft seal on the transfer case assembly. This leak is typically first identified by fluid collecting at the bottom of the seam between the transmission output and transfer case input mating surfaces.
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.