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Service bulletins for the 2021 Jeep Grand Cherokee

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

1325 on file from NHTSA, as of 2026-10-19.

About B15A1 on the 2021 Jeep Grand Cherokee: what the code means, and the bulletins and recalls about the same components.

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By trouble code

Only bulletins with trouble code: B15A1 are shown. Show all

Bulletins, newest first
S258A0000212025-12-11. Service bulletin. ELECTRICAL SYSTEM. Diagnostic Trouble Code (DTC) B15A1-00 Media Port Connection 1 Connection Found Set.
08048222022-10-17. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. UBR UER and UFR Radio Enhancements This bulletin involves updating the radio (UBR and UER) software level from the current level R34.00.49 or R37.03.58 to R41.00.56This bulletin involves updating the radio (UFR) software level to 34.00.49. Customers may experience one or more of the following: Auto button on climate control screen not present. When Voice Recognition (VR) button is pressed on radio, wrong message is displayed. Displays ?Bluetooth® Pairings? instead of connect Apple Carplay® or Android Auto® device. Wi-Fi hotspot password always shows "null". Customer can't use feature. Wi-Fi hotspot name not recognized on customer?s cellular device. Language selection on radio can not be saved after selecting. Wrong date format displayed using Korean language. Radio display is blank (rear view camera still operable). Radio touchscreen inoperative. Zoom In/Out button inoperative for rear view camera. Rear Cross Path Mode and Blind Spot chime keeps playing when object is no longer present. Irregular chime frequency. Time format does not change from military to 12-hour format. ABC Jump Keyboard will not display. Incorrect DTC implementation for Media Hub disconnection. Pressing mute hard key while on phone call does not mute microphone. Adjust clock settings shortcut in home screen does not navigate you to the right screen. SXM radio stuck on current channel, no audio and can't navigate to other channels using soft keys or knob. Media port working intermittently and setting and may set Diagnostic Trouble Codes (DTC's): B15A1-00 - Media Port 1 Connection. B15A3-00 - Media Port 3 Connection. B15A4-00 - Media Port 4 Connection. Unable to connect vehicle Wi-Fi hot spot. SXM radio does not retain the same channel after the vehicle has been shut off.
S2008000164RevB2022-09-26. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. R1 radio codes B15A1-00, B1431-00 or U3033-00 May Be Present
08048222022-09-26. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. UBR UER and UFR Radio Enhancements This bulletin involves updating the radio (UBR and UER) software level from the current level R34.00.49 or R37.03.58 to R41.00.56This bulletin involves updating the radio (UFR) software level to 34.00.49. Customers may experience one or more of the following: Auto button on climate control screen not present. When Voice Recognition (VR) button is pressed on radio, wrong message is displayed. Displays ?Bluetooth® Pairings? instead of connect Apple Carplay® or Android Auto® device. Wi-Fi hotspot password always shows "null". Customer can't use feature. Wi-Fi hotspot name not recognized on customer?s cellular device. Language selection on radio can not be saved after selecting. Wrong date format displayed using Korean language. Radio display is blank (rear view camera still operable). Radio touchscreen inoperative. Zoom In/Out button inoperative for rear view camera. Rear Cross Path Mode and Blind Spot chime keeps playing when object is no longer present. Irregular chime frequency. Time format does not change from military to 12-hour format. ABC Jump Keyboard will not display. Incorrect DTC implementation for Media Hub disconnection. Pressing mute hard key while on phone call does not mute microphone. Adjust clock settings shortcut in home screen does not navigate you to the right screen. SXM radio stuck on current channel, no audio and can't navigate to other channels using soft keys or knob. Media port working intermittently and setting and may set Diagnostic Trouble Codes (DTC's): B15A1-00 - Media Port 1 Connection. B15A3-00 - Media Port 3 Connection. B15A4-00 - Media Port 4 Connection. Unable to connect vehicle Wi-Fi hot spot. SXM radio does not retain the same channel after the vehicle has been shut off.
S2008000164 Rev.2022-07-18. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM. R1 radio codes B15A1-00, B1431-00 or U3033-00 May Be Present
08048222022-05-31. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM; EQUIPMENT. UBR UER and UFR Radio Enhancements This bulletin involves updating the radio (UBR and UER) software level from the current level R34.00.49 or R37.03.58 to R41.00.56This bulletin involves updating the radio (UFR) software level to 34.00.49. Customers may experience one or more of the following: Auto button on climate control screen not present. When Voice Recognition (VR) button is pressed on radio, wrong message is displayed. Displays ?Bluetooth® Pairings? instead of connect Apple Carplay® or Android Auto® device. Wi-Fi hotspot password always shows "null". Customer can't use feature. Wi-Fi hotspot name not recognized on customer?s cellular device. Language selection on radio can not be saved after selecting. Wrong date format displayed using Korean language. Radio display is blank (rear view camera still operable). Radio touchscreen inoperative. Zoom In/Out button inoperative for rear view camera. Rear Cross Path Mode and Blind Spot chime keeps playing when object is no longer present. Irregular chime frequency. Time format does not change from military to 12-hour format. ABC Jump Keyboard will not display. Incorrect DTC implementation for Media Hub disconnection. Pressing mute hard key while on phone call does not mute microphone. Adjust clock settings shortcut in home screen does not navigate you to the right screen. SXM radio stuck on current channel, no audio and can't navigate to other channels using soft keys or knob. Media port working intermittently and setting and may set Diagnostic Trouble Codes (DTC's): B15A1-00 - Media Port 1 Connection. B15A3-00 - Media Port 3 Connection. B15A4-00 - Media Port 4 Connection. Unable to connect vehicle Wi-Fi hot spot. SXM radio does not retain the same channel after the vehicle has been shut off.
S2008000164 Rev.2021-02-16. Service bulletin. EQUIPMENT. R1 radio codes B15A1-00, B1431-00 or U3033-00 May Be Present

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.