Jeep Grand Cherokee 2019–2020 — technical service bulletin
Bulletin 0803720 · NHTSA communication 10229344 · issued Jul 25, 2020
Technical service bulletin
communication type
Equipment
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 level to:. UAV radios - 34.2. UCV radios - 30.21. Customers may experience one or more of the following:Speaker crackling noise on non amplified vehicles (UAV Only). Active call not transferred to vehicle Bluetooth® (UAV Only). Voice Recognition (VR) not understanding commands to switch sources (UAV Only). Bluetooth phonebook not available (UAV Only). "Setting" button removed after ignition cycle (UAV Only). Coolant temperature value incorrect (UAV Only). 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.