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Service bulletins for the 2024 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.

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

By type

By component

By trouble code

Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
S24180000142024-10-31. Service bulletin. POWER TRAIN; ENGINE. MIL or CEL Lamp On.
18-056-24 REV. A2024-10-30. Service bulletin. POWER TRAIN. "Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● P00C6-00 - Fuel Rail Pressure Too Low - Engine Cranking. Customers may also comment on one or more of the following: ● Fully Autonomous Parking Assist (FAPA) is not deactivated when the accelerator pedal is pressed. ● Vehicle is not heating up fast enough at freezing temperatures This bulletin involves reprogramming the PCM with the latest available software."
S24030000052024-10-01. Service bulletin. POWER TRAIN. Malfunction Indicator Lamp (MIL) Illumination And Service Transmission Message Displayed. Diagnostic Trouble Code (DTC) P0607-ECU Internal Performance, Set.
91004092024-09-06. Service bulletin. POWER TRAIN. TRANSFER CASE Before replacing a transfer case unit for fault codes C1444-98 and/or C1477-4B, be sure to reference TSB 21-048-24 for potential transfer case shift motor replacement
21-048-242024-09-04. Service bulletin. POWER TRAIN. "Transfer Case Active Shift Motor Replacement Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● C1444-98 - T-Case Motor Overuse-Component Or System Over Temperature. ● C1477-4B - Transfer Case Clutch-Over Temperature. Customers may also comment on the following: ● ""4WD Overheated Temporarily Unavailable"" message displayed in the Instrument Panel Cluster (IPC). This bulletin involves replacing the transfer case shift motor."
995002024-07-31. Other. POWER TRAIN. CARRIER – PLANETARY & SHAFT KIT - OUTPUT
18-063-242024-07-30. Service bulletin. POWER TRAIN. "Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P06DD - Engine Oil Pressure Control Circuit Performance/Stuck Off. ● P00F3 - Humidity Sensor Circuit Range/Performance. Customer may also experience one or more of the following: ● Customers may experience coasting complaints at lower speed. ● Undesirable vehicle drivability behavior causing a vehicle Shift to Park event during Engine Stop Start (ESS) while Adaptive Cruise Control (ACC) is active. ● Pressing ACC button while ESS active can shift the vehicle to park. ● Idle speed oscillations observed when in Snow and Mud modes. ● Poor engine performance (undershoots engine speed) for ESS and for non-ESS engine start. ● Screen two incorrectly pops up on the Instrument Cluster Panel (IPC) for 5 seconds during Terrain and Rock mode. This bulletin involves reprogramming the PCM with the latest available software."
18-056-242024-06-18. Service bulletin. POWER TRAIN. "Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P00C6-00 - Fuel Rail Pressure Too Low - Engine Cranking. ● P0300-00 - Multiple Cylinder Misfire. Customers may also comment on one or more of the following: ● Fully Autonomous Parking Assist (FAPA) is not deactivated when accelerator pedal is pressed. ● Vehicle is not heating up fast enough at freezing temperatures. This bulletin involves reprogramming the PCM with the latest available software."
18-055-242024-06-18. Service bulletin. POWER TRAIN. "Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P00C6-00 - Fuel Rail Pressure Too Low - Engine Cranking. ● P0300-00 - Multiple Cylinder Misfire. Customers may also comment on one or more of the following: ● Fully Autonomous Parking Assist (FAPA) is not deactivated when accelerator pedal is pressed. ● Vehicle is not heating up fast enough at freezing temperatures. This bulletin involves reprogramming the PCM with the latest available software."
91003442024-06-04. Service bulletin. POWER TRAIN. "VALVE BODY & CONTROL UNIT Transmission Ensure clutch pressure check has been completed and documented prior to valve body replacement."
S23090000132024-01-16. Service bulletin. POWER TRAIN. Verifying Camshaft Diagnosis
91002172023-10-30. Service bulletin. STRUCTURE:BODY:STEP/LADDER; ENGINE AND ENGINE COOLING; POWER TRAIN. Motor, Power Running Board For issues with a stuck or binding power side step, DO NOT replace the motor or hinge(s). The hinges must be cleaned and lubricated at regular intervals. See latest version of Star Online #S2223000044, the vehicle owner's manual, or published service information in Service Library. Replacements of the motor and hinge assembly due to lack of maintenance could be subject to chargeback.

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