Service bulletin 9100672 Rev 3

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)
Type	Service bulletin
NHTSA id	11024605
Published by NHTSA	2025-10-29
Manufacturer's number	9100672 Rev 3
Manufacturer's date	2025-10-13
NHTSA component	POWER TRAIN

NHTSA's summary

Replacement components for transfer case are no longer available. To repair issue, use the following part numbers and follow the I-sheet instructions for assembly: 68738079AA - HOUSING 68738084AA - CAM 68738085AA - GEAR 68737112AA - PLATE Please note that the part numbers listed here are transfer case components, not full transfer case part numbers.

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

Transmission and driveline

Vehicles listed
JEEP GRAND WAGONEER	2023, 2024, 2025, 2026
JEEP WAGONEER	2023, 2024, 2025
JEEP WAGONEER	2026
RAM 1500	2023, 2024, 2025, 2026

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

Recalls for the same vehicles and component
26V413000	2026-06-30. POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION (PRNDL)
2025450	2025-09-04. Powertrain
2024325	2024-06-06. Powertrain
24V413000	2024-06-06. POWER TRAIN:MANUAL TRANSMISSION; POWER TRAIN:AUTOMATIC TRANSMISSION

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
S2621000004	2026-10-07. Service bulletin. The Customer May Complain About a Popping Noise, Grinding Noise, or an Intermittent No Reverse or Forward Transmission Engagement. The Tech May Find Damaged and/or Worn Transmission Output Shaft Splines (850RE Transmission Only)
AOD COMBO	2026-10-07. Service campaign. Customer Satisfaction Notification A0D – Electronic Shift Module - Dealer Notification The Electronic Shift Module (ESM) software on about 20,000 of the above vehicles may cause the rotary electronic shifter to become unresponsive. This condition may cause a "Service Shifter" message to appear on the instrument panel cluster and prevent the vehicle from starting.
18-075-26 REV. A	2026-10-07. Service bulletin. Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P0111-00 - Intake Air Temperature Sensor 1 Circuit Performance (In Active or Stored status) ● P0071-00 - Ambient Air Temperature Sensor Performance (In Active or Stored status) ● P0073-00 - Ambient Air Temperature Sensor Circuit "A" High (In Active or Stored status) ● P062B-00 - Internal Control Module Fuel Injector Control Performance ● P0E7E-00 - Coolant Bypass Valve B Control Circuit (In Active or Stored status) ● P2AF6-00 - Starter Relay 3 Stuck Off (with PCR). ● P00FD - Battery B State Of Charge Performance. ● P013F-00 - O2 Sensor 2/1 Delayed Response - Lean To Rich Bank. (In Active or Stored status) ● P014A-00 - O2 Sensor 2/2 Delayed Response - Rich to Lean Bank. (In Active or Stored status) ● P013E-00 - O2 Sensor 2/1 Delayed Response - Rich to Lean Bank. (In Active or Stored status) ● P014B-00 - O2 Sensor 2/2 Delayed Response - Lean To Rich Bank. (In Active or Stored status) ● P06DD-00 - Engine Oil Pressure Control Circuit Performance/Stuck Off.(In Active or Stored status) ● P0073-00 - Ambient Air Temperature Sensor Circuit "A" High. (In Active or Stored status) ● P0071-00 - Ambient Air Temperature Sensor Performance. (In Active or Stored status) ● P2C90-00 - Crankcase Ventilation System - Hose "A" Disconnected. (In Active or Stored status) ● P1CEA-00 - Boost Side EVAP Purge System Performance. (In Active or Stored status) ● P05BD-00 - Stop-Start Mode Switch Range/Performance. (In Active or Stored status) ● P00C6-00 - Fuel Rail Pressure Too Low - Engine Cranking. (In Active or Stored status) ● U0673-00 - Lost Communication With Ion Sense Module. (In Active or Stored status) Customers may also comment on one or more of the following: ● High Elevation misfire. Electronic Start Stop (ESS) inoperative or "Auto Stop/Start Not Ready" message displayed in the Instrument Panel Cluster (IPC). NOTE: Normal Auto Stop/Start inhibit conditions should not be considered the cause of this concern. The condition is associated with DTC P2AF6. ● "Door Ajar" message on when door is closed. ● BSCM MIL illumination request not setting the MIL in the PCM High oil level indicator illuminated on the IPC. The following software enhancements are now available: ● Improvements to prevent misfire DTCs P0300-P0306 that may set if one of the following DTCs set: ○ P0335-00 - Crankshaft Position Sensor Circuit. ○ P0336-00 - Crankshaft Position Sensor Performance. This bulletin involves inspecting and possibly reprogramming the PCM with the latest available software.
18-071-26 REV. A	2026-10-07. Service bulletin. Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P2237-00 - O2 Sensor Positive Current Control Circuit/Open Bank 1 Sensor 1. ● P2240-00 - O2 Sensor Positive Current Control Circuit/Open Bank 2 Sensor 1. ● P2251-00 - O2 Sensor Negative Current Control Circuit/Open Bank 1 Sensor 1. ● P2254-00 - O2 Sensor Negative Current Control Circuit/Open Bank 2 Sensor 1. ● P2243-00 - O2 Sensor Reference Voltage Circuit/Open Bank 1 Sensor 1. ● P2247-00 - O2 Sensor Reference Voltage Circuit/Open Bank 2 Sensor 1. ● P015B-00 - O2 Sensor Delayed Response - Lean To Rich Bank 1 Sensor 1. ● P015D-00 - O2 Sensor Delayed Response - Lean To Rich Bank 2 Sensor 1. ● P0E7C-00 - Coolant Bypass Valve "B" Control Circuit Low. ● P0E7D-00 - Coolant Bypass Valve "B" Control Circuit High. ● P0E7E-00 - Coolant Bypass Valve "B" Control Circuit Range/Performance. ● P0E7F-00 - Coolant Bypass Valve "B" Control Circuit Stuck/Open. ● U063C-00 - Lost Communication With Coolant Bypass Valve Actuator "B". ● P0100-00 - Mass Or Volume Air Flow Sensor "A" Circuit. ● P0101-00 - Mass Or Volume Air Flow Sensor "A" Circuit Range/Performance. ● P0461-00 - Fuel Level Sensor "A" Circuit Range/performance. ● P0072-00 - Ambient Air Temperature Sensor Circuit "A" Low. ● P062B-00 - Internal Control Module Fuel Injector Control Performance. ● B1810-00 - Driver Door Shorted Low. ● B25C7-00 - Redundant Driver Door Shorted Low. ● U0104-00 - Lost Communication With Cruise Control Module (NA Market Only) (In Active or Stored status). ● U0405-00 - Invalid Data Received From Cruise Control Module (NA Market Only) (In Active or Stored status). NOTE: Vehicles setting DTCs U0405-00 and U0104-00 may experience an inability to be cleared.
21-062-26	2026-09-30. Service bulletin. Transmission Rattle Customers may comment on the following: SYMPTOM: ● Rattle noise coming from the transmission. This bulletin involves inspecting and possibly tightening the transmission oil heater mounting nuts to proper specification.
S2418000012 REV.C	2026-09-08. Service bulletin. Mil On/Check Engine Lamp (CEL) On, Engine Runs Rough
18-077-26	2026-08-26. Service bulletin. Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may SYMPTOM: exhibit/set the following Diagnostic Trouble Code (DTC): ● P0300 - Multiple Cylinder Misfire. Customers may experience one of the following: ● Vehicle runs rough on initial cold start only after an overnight or extended soak. This bulletin involves reprogramming the PCM with the latest available software.
08-308-26	2026-08-13. Service bulletin. Flash: Electronic Shift Module (ESM) Updates Customers may comment on one or more of the following: SYMPTOM: ● Shifter is unresponsive. ● Unable to start the vehicle. ● “Service Shifter” message displayed in the Instrument Panel Cluster (IPC). This bulletin involves inspecting and possibly reprogramming the ESM with the latest available software.
08-289-26 REV. A	2026-08-06. Service bulletin. Transmission Control Module (TCM) Diagnostic N/A - This bulletin was released in error. SYMPTOM:
18-075-26	2026-07-29. Service bulletin. Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P0111-00 - Intake Air Temperature Sensor 1 Circuit Performance (In Active or Stored status) ● P0071-00 - Ambient Air Temperature Sensor Performance (In Active or Stored status) ● P0073-00 - Ambient Air Temperature Sensor Circuit "A" High (In Active or Stored status) ● P062B-00 - Internal Control Module Fuel Injector Control Performance ● P0E7E-00 - Coolant Bypass Valve B Control Circuit (In Active or Stored status) ● P2AF6-00 - Starter Relay 3 Stuck Off (with PCR). ● P00FD - Battery B State Of Charge Performance. ● P013F-00 - O2 Sensor 2/1 Delayed Response - Lean To Rich Bank. (In Active or Stored status) ● P014A-00 - O2 Sensor 2/2 Delayed Response - Rich to Lean Bank. (In Active or Stored status) ● P013E-00 - O2 Sensor 2/1 Delayed Response - Rich to Lean Bank. (In Active or Stored status) ● P014B-00 - O2 Sensor 2/2 Delayed Response - Lean To Rich Bank. (In Active or Stored status) ● P06DD-00 - Engine Oil Pressure Control Circuit Performance/Stuck Off.(In Active or Stored status) ● P0073-00 - Ambient Air Temperature Sensor Circuit "A" High. (In Active or Stored status) ● P0071-00 - Ambient Air Temperature Sensor Performance. (In Active or Stored status) ● P2C90-00 - Crankcase Ventilation System - Hose "A" Disconnected. (In Active or Stored status) ● P1CEA-00 - Boost Side EVAP Purge System Performance. (In Active or Stored status) ● P05BD-00 - Stop-Start Mode Switch Range/Performance. (In Active or Stored status) ● P00C6-00 - Fuel Rail Pressure Too Low - Engine Cranking. (In Active or Storedstatus) ● U0673-00 - Lost Communication With Ion Sense Module.(In Active or Stored status) Customers may also comment on one or more of the following: ● **High Elevation misfire. ● Electronic Start Stop (ESS) inoperative. This bulletin involves inspecting and possibly reprogramming the PCM with the latest available software.