WenmarOpen by Wenmar Pro

Service bulletins for the 2026 Jeep Grand Wagoneer

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.

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

By type

By component

By trouble code

Bulletins, newest first
S2523000089 REV.A2026-02-04. Service bulletin. STRUCTURE:BODY; ELECTRICAL SYSTEM. Passive Entry Exterior Door Handle Inoperative When Touched For Lock And Or Unlock.
1097272026-01-28. Service bulletin. ENGINE. Water Pump & Chain Case Cover
1097242026-01-28. Service bulletin. ENGINE. Water Pump & Chain Case Cover
S2308000120 REV.E2026-01-21. Service bulletin. ELECTRICAL SYSTEM. Rain Sensing Auto Wipers and Auto on Head Lamps Inoperative. Rain Sensor Internal Failure.
1091522026-01-21. Service bulletin. UNKNOWN OR OTHER. CORE – HEATER
1091532026-01-21. Service bulletin. UNKNOWN OR OTHER. CORE – HEATER
08-012-262026-01-21. Service bulletin. ELECTRICAL SYSTEM. Speaker Diagnostic Procedure Rattle, buzz and squeak coming from specific speakers.
1093992026-01-14. Service bulletin. STRUCTURE:BODY. RACK KIT - REMOVABLE
1093982026-01-14. Service bulletin. STRUCTURE:BODY. RACK KIT - REMOVABLE
1092322026-01-14. Service bulletin. STRUCTURE:BODY. LATCH - LIFTGATE
1092312026-01-14. Service bulletin. STRUCTURE:BODY. LATCH - LIFTGATE
S26230000022026-01-14. Service bulletin. ELECTRICAL SYSTEM. Service Shifter Message On Instrument Cluster With Loss Of Communication Diagnostic Trouble Code (DTC) Related To The Shifter.
S26230000012026-01-14. Service bulletin. ELECTRICAL SYSTEM. Rotary Shifter Lights Blinking, Shifter Not Moving, Not Going Into Gear.
1091742025-12-23. Service bulletin. SUSPENSION. STABILIZER BAR ASSY - FRT SUSPENSION and STABILIZER BAR – FRONT and LINK - STABILIZER BAR
08-416-252025-12-23. Service bulletin. ELECTRICAL SYSTEM; LANE DEPARTURE: ASSIST. Flash: Central ADAS Decision Module (CADM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set at least one of the following Diagnostic Trouble Codes (DTCs): ● C2203-00 - Current VIN Missing/Mismatch. ● C008E-00 - ECU Internal Performance with Environmental Data Decode Byte: APP_FATAL_ERROR_APP_CONFIGURATION_ERROR_FAULT. Customers may also comment on one or more of the following: ● The Instrument Panel Cluster (IPC) is displaying one or more of the following messages: ○ "ACC/FCW Unavailable Service Required". ○ "ACC/FCW Limited Functionality". ○ "Active Lane Management Limited Functionality." ○ "Active Lane Management Unavailable Service Required". ○ "Automatic Emergency Braking (AEB) Limited Service Required". ○ "AEB Unavailable Service Required". ○ "Blindspot Detection Unavailable Service Required" ○ "Blindspot Detection Limited Functionality" ● Customer states that the ADAS features are disabled. This bulletin involves reprogramming of the CADM with the latest available software and possibly performing a Long Range Camera Front (LRCF) calibration
08-404-252025-12-17. Service bulletin. ELECTRICAL SYSTEM. Drivetrain Control Module (DTCM) Software Update Customers may experience one or more of the following: ● Rear axle bind during slow speed turning. Feels like the 4WD is active. ● While moving above 5 kph (3.1 mph) transmission goes into limp mode. This bulletin involves flashing the DTCM to the latest software level.
08-394-25 REV. A2025-12-17. Service bulletin. ELECTRICAL SYSTEM. Telematics Box Module (TBM) Backup Battery Replacement When DTC B1E21 Is Present Technicians may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● B1E21-96 - Backup Battery Component Internal Failure.
91007342025-12-17. Service bulletin. ELECTRICAL SYSTEM. If the DTC B1E21-96: Backup Battery-Component Internal Failure is active and customer states Popup message will show at the radio: "Battery of Uconnect Box requires service. SOS call and related functions may be unavailable. Please visit an authorized dealer." PLEASE do not Replace the TBM module, only replace TBM Internal Battery (inside Telematics Box Module) and order PN68493347
S25080001072025-12-17. Service bulletin. SEATS. Comfort Seat Module (CSM) or Comfort Steering Wheel Module (CSWM) do Not Operate
1089422025-12-11. Service bulletin. STEERING. MODULE - STEERING CONTROL
1089412025-12-11. Service bulletin. STEERING. MODULE - STEERING CONTROL
1089532025-12-11. Service bulletin. UNKNOWN OR OTHER. DUCT - CLEAN AIR
90C Combo Rev12025-12-11. Service campaign. ENGINE. CUSTOMER SATISFACTION NOTIFICATION NORTH AMERICA 90C Purge Valve Hose
S2318000005 REV.C2025-12-11. Service bulletin. FUEL/PROPULSION SYSTEM. The customer’s complaint may include a message appearing in the cluster’s information center stating, “See User’s Manual For Proper Oil And Fuel” or “Service Engine See Dealer”. The customer may also mention a “low power” complaint.
S258A0000212025-12-11. Service bulletin. ELECTRICAL SYSTEM. Diagnostic Trouble Code (DTC) B15A1-00 Media Port Connection 1 Connection Found Set.

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