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Service bulletins for the 2023 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.

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

By type

By component

By trouble code

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
91002792024-01-16. Service bulletin. ENGINE AND ENGINE COOLING. COOLER Engine Oil Please be aware that the oil cooler seal is serviceable as a standalone part and should be considered for replacement as a remedy for fluid leak.
91002652024-01-16. Service bulletin. ENGINE AND ENGINE COOLING. Hydraulic tensioner Before replacing any Front End Accessory Drive components, please check Accessory Drive belt routing as per engine sales code. Customer complaints may include a noise coming from under de hood described as a squeal, screech, squeak, chirp or "belt related" noise and/or noisy tensioner/pulley. Please check Service Library for any STAR Online publications that may apply. Note: If it is found that the pulleys and/or tensioners are to blame for the noise please use an stethoscope or similar tool to determine the origin of the noise and include it in the narrative.
09018232024-01-08. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; POWER TRAIN. Oil Leak from Turbo Oil Supply Line Customers may experience the following: ? Oil leak from turbo oil supply line. This bulletin involves replacing the turbo oil feed line.
91002122024-01-08. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. PUMP Water For 2016-2024MY 3.6L Pentastar Upgrade with suspected coolant leak. PRIOR TO PERFORMING ANY WATER PUMP REPLACEMENT, PROCEED WITH INSPECTION INSTRUCTIONS FROM THE LATEST VERSION OF STAR ONLINE PUBLICATION S2307000002. Please submit pictures of the leak area thru the DIDI process outlined in the STAR Online document. NOTE: Some coolant residue may be found at the water pump weep hole plug area which may be normal, but coolant should not be dripping from this location. If unsure about, use the Pressurized Coolant System Inspection process as found in the Dealer Connect Cooling Diagnosis and Testing Procedures.
91002172024-01-08. Service bulletin. ENGINE AND ENGINE COOLING. 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.
08055232024-01-02. Service bulletin. BACK OVER PREVENTION; ELECTRICAL SYSTEM; WHEELS; ENGINE AND ENGINE COOLING; TRAILER HITCHES; STEERING; SERVICE BRAKES. Radio Over The Air S24.18 Updating to S26.18 Software Version Customers may experience one or more of the following: ? **Navigation signal drops out; maps not loading on the Instrument Panel Cluster (IPC) display. ? Cannot change satellite stations, display shows one station on screen but is playing another.** ? Battery drain. ? Black screen after clicking 9accept9 at start up (Rearview camera functions normally). ? Radio resets (Rearview camera functions normally). ? Wireless connectivity device disconnect. ? Wireless connectivity disconnecting. ? CarPlayT icon does not appear in device manager. ? Audio disruptions. ? SXMT inoperative. ? Audio mute. ? Passenger screen blank. ? Passenger screen apps missing. ? Missing profiles icon. ? IPC displays incorrect audio source. ? Radio is slow to respond. ? Trailer tire pressure configurations deleted. ? Steering wheel controls skipping SXM channels. ? Recent calls not displayed. ? Phone audio playing when ignition is off. This software update also has the following enhancements: ? Icon size/layout improvements. ? Carplay/Android AutoT improvements. ? Uconnect Phone improvements. ? FOTA improvements. ? Passenger screen camera app improvements. ? Voice Recognition (VR) command improvements. 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 S24.18 to S26.18. NOTE: National launch for this FOTA update is expected to begin November 18, 2022.
08216232023-12-18. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ENGINE. Battery No Start, Jump Start, Tow-In Complaints Customers may experience one or more of the following: ? No start, jump start or tow-ins. ? Engine Stop Start (ESS) is inoperable.
S23080001232023-12-18. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR. No crank/No start with no DTC?s
S23080001222023-12-18. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR. Vehicle is a no crank/no start with the following DTCs, as well as a no crank/no start condition: U0164, U0140, U0151, U0155
09018232023-10-30. Service bulletin. ENGINE AND ENGINE COOLING. Oil Leak from Turbo Oil Supply Line Customers may experience the following: ? Oil leak from turbo oil supply line. This bulletin involves replacing the turbo oil feed line.
S22190000052023-10-30. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; STEERING. Check Engine Lamp On. Warning Messages In The Cluster. U0131 Lost Communication With Power Steering Control Module Set.
91002122023-10-30. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:COOLING SYSTEM:PUMP. PUMP Water For 2016-2024MY 3.6L Pentastar Upgrade with suspected coolant leak. PRIOR TO PERFORMING ANY WATER PUMP REPLACEMENT, PROCEED WITH INSPECTION INSTRUCTIONS FROM THE LATEST VERSION OF STAR ONLINE PUBLICATION S2307000002. Please submit pictures of the leak area thru the DIDI process outlined in the STAR Online document. NOTE: Some coolant residue may be found at the water pump weep hole plug area which may be normal, but coolant should not be dripping from this location. If unsure about, use the Pressurized Coolant System Inspection process as found in the Dealer Connect Cooling Diagnosis and Testing Procedures.
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.
S22230000272023-10-02. Service bulletin. STRUCTURE:BODY:HOOD; ENGINE. Buzz Rattle Squeak Noise From Under Hood
S23080000972023-10-02. Service bulletin. UNKNOWN OR OTHER; ENGINE; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. CEL (Check Engine Lamp) Illuminated, Service 4WD System Message Displayed on The Cluster
09010232023-08-21. Service bulletin. ENGINE AND ENGINE COOLING. Make Up Air (MUA) Valve Leak Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Code (DTC) has been set: ? P2C90 - Crankcase Ventilation System - Hose A Disconnected. This bulletin involves replacing the MUA check valve, or performing an inspection and possibly replacing the PCV valve.
09011232023-08-21. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Turbo to Charge Air Cooler Quick Connect Loose Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ? P0101 - Mass Air Flow Sensor Circuit Performance. ? P0236 - Turbocharger/Supercharger Boost Pressure Sensor Performance. Customers may also comment on the following: ? Reduced engine performance. This bulletin involves inspecting turbo to charge air cooler quick connect at the turbo, performing a push-pullpush verification check on the quick connection and ensure it is locked.
S23090000032023-08-21. Service bulletin. ENGINE. Customer may experience a knocking, pinging or rattling noise coming from the engine.
S23180000052023-08-21. Service bulletin. EQUIPMENT; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING. 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?.
S23090000022023-07-31. Service bulletin. ENGINE AND ENGINE COOLING. MIL lamp-on. Engine noise, rattle. Misfire or rough running.
S23230000212023-07-31. Service bulletin. ENGINE AND ENGINE COOLING. Clunk Noise From Front End Driving Between 15 And 35 MPH And When Decelerating. C0604- Active Air Dam Control Performance
S23180000052023-07-31. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. 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?.
S23180000072023-07-31. Service bulletin. ENGINE AND ENGINE COOLING. Mil Lamp-On/Check Engine Lamp-On after a cold engine start.
07007232023-07-31. Service bulletin. ENGINE AND ENGINE COOLING. Water Quality When Mixed With Engine Coolant
08120232023-07-31. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN; ENGINE AND ENGINE COOLING. Flash: Drivetrain Control Module (DTCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) or warning lamp illumination. Upon further investigation the technician may find that the multiple Diagnostic Trouble Codes (DTCs) have been set: ? C1403-29 - Transfer Case Range Position Sensor-Signal Invalid. ? C14AA-62 - Transfer Case Motor Position Sensor Supply-Signal Compare Failure. This bulletin involves reprogramming the DTCM with the latest software available.

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