Jeep Grand Cherokee 2019 — technical service bulletin
Bulletin 08-100-19 · NHTSA communication 10168457 · issued Oct 12, 2019
Technical service bulletin
communication type
Electrical System
component
2019
model years
1
vehicle entries
Official summary
Flash: Active Noise Cancellation (ANC) Module Enhancements - AN-K8-08-20190805 Refer to China Joint Venture (JV) released document AN-K8-08-20190805, for details on this service action.
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.