Jeep Grand Cherokee 2014–2021 — technical service bulletin
Bulletin 9100639 · NHTSA communication 11021845 · issued Aug 7, 2025
Technical service bulletin
communication type
Engine
component
2014–2021
model years
16
vehicle entries
Official summary
Verify Reman part number availability. Order the "R" part number for all orders: Warranty, Mopar, customer pay and service contract. Order "68" part number for New unsold units only.
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.