Jeep Grand Cherokee 2019–2020 — technical service bulletin
Bulletin 08-037-20 · NHTSA communication 10175144 · issued Mar 12, 2020
Technical service bulletin
communication type
Electrical System
component
2019–2020
model years
2
vehicle entries
Official summary
UAV and UCV Radio Enhancements This bulletin involves inspecting and if required, updating the radio software levelto 30.21. Customers may experience one or more of the following:Speaker crackling noise.
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.