Jeep Grand Cherokee 2021–2025 — technical service bulletin
Bulletin 08-221-26 REV. B · NHTSA communication 11037582 · issued Sep 23, 2026
Technical service bulletin
communication type
Electrical System
component
2021–2025
model years
22
vehicle entries
Official summary
R1H Radio U41.10 Software Update - Dealer Option Customers may experience one or more of the following: SYMPTOM: ● **Speakers may emit a humming, screeching, buzzing, clicking, or bass noise (not related to the amplifier).** ● FCW OFF light ON with no DTCs and can't turn off. ● Blank screen and then reboot every 2 minutes and 40 seconds. (Rearview Camera Functions Normally). ● Paddle shifters not working/no longer a setting. ● Autolocks not working. ● Auto headlights not working. ● AM station not working (Appears some of the vehicles PROXI defaults to "1" which is absent for AM). ● Album Art f
Vehicles covered
- 2021 Jeep Grand Cherokee
- 2022 Jeep Grand Cherokee
- 2023 Jeep Grand Cherokee
- 2024 Jeep Grand Cherokee
- 2025 Jeep Grand Cherokee
- 2022 Jeep Grand Cherokee 4XE
- 2023 Jeep Grand Cherokee 4XE
- 2024 Jeep Grand Cherokee 4XE
- 2025 Jeep Grand Cherokee 4XE
- 2021 Jeep Grand Cherokee L
- 2022 Jeep Grand Cherokee L
- 2023 Jeep Grand Cherokee L
- 2024 Jeep Grand Cherokee L
- 2025 Jeep Grand Cherokee L
- 2022 Jeep Grand Wagoneer
- 2023 Jeep Grand Wagoneer
- 2024 Jeep Grand Wagoneer
- 2025 Jeep Grand Wagoneer
- 2022 Jeep Wagoneer
- 2023 Jeep Wagoneer
- 2024 Jeep Wagoneer
- 2025 Jeep Wagoneer
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.