Jeep bulletin 08-221-26
What it saysR1H Radio U41.10 USB Software Update Customers may experience one or more of the following: FCW OFF light ON with no DTCs and can't turn off. NHTSA’s full summary ↓
Jeep filed this with NHTSA as a service bulletin dated Sep 23, 2026, received May 28, 2026, about the electrical system — 3 documents under this number: 08-221-26 REV. B, 08-221-26 REV. A and 1 more. It names 13 model years (2021–2025). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationR1H Radio U41.10 USB Software Update Customers may experience one or more of the following: ● 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 flickering issue. ● Blank screen and then reboot every 2 minutes and 40 seconds. ● CarPlay icon disappears from main screen while still active, leaving no navigation path back. ● Light/dark theme mismatch between Radio and temperature screens at key-on Radio experiences lockups, resets, blank screens, and language issues after FOTA. ● Valet mode sends duplicate requests causing HU and vehicle state misalignment. ● Rear seat media page intermittently shows a blank screen. ● Unable to select or drag 'Pitch and Roll' widget on home screen. ● USB playback resumes incorrectly, skipping to next track after reconnect. ● Album art not displayed on HMI despite availability in media. ● Incorrect call timer displayed for conference calls. ● Call status remains 'active' on widget after call ends. ● Second call status not updated on home screen widget. ● Rear entertainment tab intermittently blank when switching apps. ● System crashes for 20 to 30 seconds after voice reply action. ● Media progress bar continues incorrectly after second call acceptance. ● CarPlay device fails to reconnect automatically or manually. ● Rear HVAC lock/unlock text missing while icon is present. ● Visual glitch observed on Front Passenger Display Module (FPDM) display. ● Surround view camera accessible while driving across apps (unexpected behavior). ● IPC navigation map fails to load despite radio showing navigation. ● Head Up Display (HUD) layout resets after overnight sleep cycle. ● ParkSense triggers unintended surround camera activation. ● HUD settings not retained after ignition cycle. ● Audio focus stuck on VR; selected message not read. ● Preset bar appears blank after overnight sleep cycle. ● FM channel switches unexpectedly and reverts after delay. ● Massage activation causes HU black screen/media disruption. ● Non-applicable ambient lighting setting visible in vehicle menu. ● Navigation screen appears black after system start
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 08-221-26 REV. B | Service bulletin | Sep 23, 2026 | 11037582 | |
| 08-221-26 REV. A | Service bulletin | Jun 3, 2026 | 11033861 | |
| 08-221-26 | Service bulletin | May 21, 2026 | 11032976 |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themA vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
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What owners reported
Source: NHTSA complaint databaseOwners of the 13 model years this bulletin names have filed 2,577 complaints with NHTSA since 2015. 1,096 of them name Electrical System — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.
On the 2023 Jeep Grand Cherokee, the 31 owners who gave an odometer reading for Electrical System reported it at a median of 18,000 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
Car engine completely shuts down at highway speeds sudden loss of throttle/power at highway speed * RPM surging or erratic behavior * dashboard/light flickering * vehicle entering limp mode or shutting down * no-start condition afterward * then the vehicle “magically” works again later * dealership unable to reproduce it * sometimes no…
2024 Jeep Grand Wagoneer · Electrical System · filed with NHTSA May 27, 2026
Randomly, and without warning, the instruments, gauges, and displays will switch into a language I do not speak or understand (Italian). Coinciding with the switch to Italian language, cluster and radio display settings revert back to default settings, auto door locks and paddle shifter becomes inoperative (with no menu to enable)…
2022 Jeep Grand Cherokee · Electrical System · filed with NHTSA Aug 4, 2025
Started with the cold weather in December. I got a notification that I need to service the Power Steering system. Lasted for two drives and then went away. Approximately two weeks later, while driving my family in town, the power steering light came on again. Came to a stop at a stop sign and the car put itself in Park.
2022 Jeep Wagoneer · Electrical System · filed with NHTSA Jan 9, 2023
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.
More bulletins about the electrical system
Source: same model, same component group473 other manufacturer communications filed against these Jeep models under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Jeep list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 08-341-26 | Service bulletin | Sep 24, 2026 | Heads Up Display (HUD) Dimming Too Low Customers may experience one or more of the following: SYMPTOM: ● HUD is very dark and hardly viewabl… |
| 08-069-26 REV. A | Service bulletin | Sep 18, 2026 | Flash: Power Liftgate Module (PLGM) Updates Customers may experience one or more of the following symptoms: SYMPTOM: ● **Continuous chime is… |
| 08-332-26 REV. B | Service bulletin | Sep 16, 2026 | Hybrid Cooling Pump Emergency Mode Condition Customers may comment on one or more of the following: SYMPTOM: ● 12V battery is draining. NOTE… |
| 9100905 | Service bulletin | Sep 10, 2026 | Passive Entry O/S Dr Handle Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040. |
| OTHERDOC_183 | Other | Sep 8, 2026 | Radio Over The Air Update to U43.17 R1H Software Version (FOTA) Customers may experience one or more of the following: - Navigation Stabilit… |
| OTHERDOC_179 | Other | Sep 8, 2026 | Radio Over The Air Update to U43.17 R1H Software Version (FOTA) Customers may experience one or more of the following:- Navigation Stabilit… |
| 9100902 | Service bulletin | Sep 8, 2026 | Passive Entry O/S Dr Handle Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040. |
| 114477 | Service campaign | Sep 4, 2026 | Revised Customer Satisfaction Notification 74D – Powertrain Modules Software Update Dealer Notification The powertrain modules software on a… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Jeep, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Jeep 08-221-26 a recall?
No. A service bulletin is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the 08-221-26 repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way.
Which vehicles does 08-221-26 cover?
The manufacturer filed it against 13 model years: 2025 Jeep Grand Cherokee, 2024 Jeep Grand Cherokee, 2023 Jeep Grand Cherokee, 2022 Jeep Grand Cherokee, 2021 Jeep Grand Cherokee, 2025 Jeep Grand Wagoneer and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.