Jeep Grand Cherokee 2023 — technical service bulletin
Bulletin 0804623B · NHTSA communication 10248932 · issued Nov 15, 2023
Technical service bulletin
communication type
Equipment
component
2023
model years
3
vehicle entries
Official summary
R1H Radio Software Update to T25.50 The customer may experience the one or more of the following: Amplifier module sets Diagnostic Trouble Code (DTC) U0485 - Implausible Data Received Set. Radio reset (Rearview camera functions normally). Voice Recognition (VR) inoperable. Wireless CarPlay® inoperable. Audio sources inoperable. Display switches to Nav on VR prompt. Vehicle Positioning (Lat/Long) inoperable. Surround View Camera inoperable (Rearview camera functions normally). Unable to exit FamCam. Audio Repetition inoperable. Electric vehicle pages inoperable. Translated text is incorrect. Pr
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.