Jeep Grand Cherokee 2021 — technical service bulletin
Bulletin 0818322 · NHTSA communication 10227739 · issued Oct 5, 2022
Technical service bulletin
communication type
Electrical System
component
2021
model years
1
vehicle entries
Official summary
Flash: Telematics Box Module (TBM) Updates This bulletin involves updating the TBM with the latest software. Customers may experience the following: Message displayed on the radio screen, "Uconnect Box requires service. Pleasevisit an authorized dealer.", with no active or stored Diagnostic Trouble Codes (DTCs) set by TBM or Occupant Restraint Controller (ORC).Error MessageUconnect box ?requires service? message can be triggered by different reasons. For an issueon a new vehicle recently switched to customer mode, please follow the New Vehicle Preparation procedure to resolve Uconnect box requ
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.