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Service bulletin S2508000029 REV.A

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11036180
Published by NHTSA2026-08-13
Manufacturer's numberS2508000029 REV.A
Manufacturer's date2026-08-04
NHTSA componentBACK OVER PREVENTION: WARNINGS

NHTSA's summary

Instrument Panel Cluster (IPC) Message “Park Assist System Unavailable” or “Service Park Assist System”, “Rear Braking Assist Unavailable” or “Service Rear Braking Assist System" with Performance Diagnostic Trouble Codes (DTCs)

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Driver assistance, Backup camera

Vehicles listed
JEEP GRAND CHEROKEE2023, 2024, 2025, 2026, 2027
JEEP GRAND CHEROKEE 4XE2023, 2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it)
JEEP GRAND CHEROKEE L2023, 2024, 2025, 2026, 2027
JEEP GRAND WAGONEER2023, 2024, 2025, 2026, 2027
JEEP WAGONEER2023, 2024, 2025

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
26V5310002026-08-13. BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
26V3260002026-05-21. BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
24V9440002024-12-19. BACK OVER PREVENTION:SOFTWARE
24V4360002024-06-13. BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
24V2910002024-04-25. BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
24V2890002024-04-25. BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
23V5770002023-08-14. BACK OVER PREVENTION:DISPLAY FUNCTION

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
1142822026-09-03. Warranty extension. ***Recall Completion Prior to Sale of Vehicle***
1142832026-09-03. Warranty extension. ***Recall Completion Prior to Sale of Vehicle***
S2508000029 REV.B2026-08-19. Service bulletin. Instrument Panel Cluster (IPC) Message “Park Assist System Unavailable” or “Service Park Assist System”, “Rear Braking Assist Unavailable” or “Service Rear Braking Assist System" with Performance Diagnostic Trouble Codes (DTCs)
08-135-262026-04-01. Service bulletin. PROXI Alignment and Drive Calibration: Park Assist Module (PAM) The vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): SYMPTOM: ● B2286-00 - Calibration Not Learned-Lost Calibration. NOTE: There is no Malfunction Indicator Lamp (MIL) illumination displaying in the Instrument Panel Cluster (IPC) for this condition. Customers may comment on the following: ● In the top down 360° camera view, the items on the ground (i.e. parking lines) appear curved instead of straight. During normal operation, items on the ground (i.e. parking lines) will appear straight. This bulletin involves performing the PAM Drive Calibration and PROXI alignment routine for the PAM.
S25080000292025-04-22. Service bulletin. Instrument Panel Cluster (IPC) Message “Park Assist System Unavailable” or “Service Park Assist System”, “Rear Braking Assist Unavailable” or “Service Rear Braking Assist System" with Performance Diagnostic Trouble Codes (DTCs)
0800824A2024-03-18. Service bulletin. Radio Over The Air Update to U29.42 Software Version Customers may experience one or more of the following: ? Blank phone widget displayed. ? Radio freeze after reverse event (Rearview Camera (RVC) Functions Normally). ? Screen Off at start up (RVC Functions Normally). ? Radio restart before sleep after switching between different USBs. ? Pop up error "setting not saved" occurring when attempting to enable Geolocation (Privacy Mode Off). ? Amplifier module sets Diagnostic Trouble Code (DTC) U0485 Implausible Data Received From Radio. ? During FOTA Scheduling, if OK is not pressed to confirm time selected, vehicle will sleep. ? Apps downloaded for one connected profile are being shared with other local profiles. ? Switching profiles with slow response. ? Slow response switching between camera views. ? Black radio screen (RVC functions normally). ? Rear seat reminder alert unavailable. ? Wi-Fi software update pop-up is being triggered in non-connected vehicles. ? Switching to Android menu, display screen blinks on green color. ? Microphone inoperative during SOS call from the vehicle. This bulletin provides information regarding the latest Firmware Over The Air (FOTA) update and provides the service technician an overview of the steps a customer will need to take to complete the update. The radio software will be updated from T27.39 or U29.28 to U29.42. NOTE: The national launch for the FOTA is expected to begin **February 16, 2024.**
0800124A2024-03-18. Service bulletin. Flash: Drivetrain Control Module (DTCM) Updates A moaning, grinding, or groaning type noise while driving between 80 - 112 kph (50 - 70 mph). Noise is not heard when the front axle disconnect is disengaged. NOTE: This noise happens more as the ambient temperatures become less than 5 ? (41 ?). This bulletin involves reprogramming the DTCM with the latest available software.
18004242024-03-18. Service bulletin. Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ? **P00C6-00 - Fuel Rail Pressure Too Low - Engine Cranking. ? P06DD-00 - Engine Oil Pressure Control Circuit Performance/Stuck Off. ? P0461-00 - Fuel Level Sensor "A" Circuit Range/Performance. ? P051B-00 - Crankcase Pressure Sensor Circuit Range/Performance. ? P2F64-00 - Ion Sense Feedback Circuit A. ? P0331-00 - Knock Sensor 2 Circuit Range/Performance. ? P0300-00 - Multiple Cylinder Misfire.** ? P2C90-00 - Crankcase Ventilation System - Hose "A" Disconnected. ? P0011-00 - Bank 1 Camshaft 1 Position Timing Over Advanced Or System Performance. ? P0604-00 - Internal Control Module Random Access Memory Ram Error. ? P060C-00 - Internal Control Module Main Processor Performance. This bulletin involves reprogramming the PCM with the latest available software.
03001242024-03-18. Service bulletin. Rattle Noise While Driving Customers may comment on the following: ? A rattling noise when driving. NOTE: This could be due to the rear driveshaft center support bearing not properly secured to the body. This bulletin involves inspecting and possibly tightening or replacing, the rear driveshaft center support bearing fasteners.
08008242024-03-18. Service bulletin. Radio Over The Air Update to U29.42 Software Version Customers may also experience one or more of the following: ? Blank phone widget displayed. ? Radio freeze after reverse event (Rearview Camera (RVC) Functions Normally). ? Screen Off at start up (RVC Functions Normally). ? Radio restart before sleep after switching between different USBs. ? Pop up error "setting not saved" occurring when attempting to enable Geolocation (Privacy Mode Off). ? Amplifier module sets Diagnostic Trouble Code (DTC) U0485 Implausible Data Received From Radio. ? During FOTA Scheduling, if OK is not pressed to confirm time selected, vehicle will sleep. ? Apps downloaded for one connected profile are being shared with other local profiles. ? Switching profiles with slow response. ? Slow response switching between camera views. ? Black radio screen (RVC functions normally). ? Rear seat reminder alert unavailable. ? Wi-Fi software update pop-up is being triggered in non-connected vehicles. ? Switching to Android menu, display screen blinks on green color. ? Microphone inoperative during SOS call from the vehicle. This bulletin provides information regarding the latest Firmware Over The Air (FOTA) update and provides the service technician an overview of the steps a customer will need to take to complete the update. The radio software will be updated from T27.39 or U29.28 to U29.42. NOTE: The national launch for the FOTA is expected to begin January 22, 2024