Jeep Grand Cherokee 2021 — technical service bulletin
Bulletin 08-128-21 · NHTSA communication 10218557 · issued Aug 5, 2021
Technical service bulletin
communication type
Seats
component
2021
model years
1
vehicle entries
Official summary
Flash: Memory Seat Module - Driver (MSMD) Updates This bulletin involves reprogramming the MSMD with the latest available software. Customers may experience the following: Drivers massage seats do not recall lumbar and bolster position when profile selected on radio (Recall from door switches and keyfob work as expected).
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.