Jeep Grand Cherokee 2023 — technical service bulletin
Bulletin 0804623 · NHTSA communication 10248924 · issued Nov 9, 2023
Technical service bulletin
communication type
Equipment
component
2023
model years
3
vehicle entries
Official summary
Radio Over The Air S26.18 Updating to T25L Software Version Customers may experience 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
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.