WenmarOpen by Wenmar Pro

Service bulletins for the 2023 Jeep Grand Cherokee

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.

866 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
09009232023-05-30. Service bulletin. ENGINE AND ENGINE COOLING. Engine Ticking Noise Engine makes an abnormal ticking noise. There may be Diagnostic Trouble Codes (DTC)s present. This bulletin involves inspecting and if needed, replacing the intake HLAs.
18048232023-05-30. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. wiTECH Small Leak Verification Test (SLVT) - P0456-EVAP SYSTEM SMALL LEAK
S23230000312023-05-30. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. Buzz, Squeak, Rattle (BSR) From Under Vehicle While Driving.
91001592023-05-30. Service bulletin. STRUCTURE; ENGINE AND ENGINE COOLING. engine mount / heat shield Before replacing the engine mounts or engine heat shields for humming, droning, moaning, or grinding type noise, verify the noise is not coming from the transfer case or rear driveshaft center bearing. Follow the diagnostic procedure outlined in the latest version of Star Online Publication S2303000001 prior to any repair.
08055232023-04-17. Service bulletin. SERVICE BRAKES, HYDRAULIC; BACK OVER PREVENTION; ENGINE AND ENGINE COOLING; TRAILER HITCHES; STEERING; WHEELS; ELECTRICAL SYSTEM. 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.
9003357a2023-04-17. Service bulletin. ENGINE AND ENGINE COOLING. ADAPTER, Engine Oil Filter (Pentastar V6) For all 2014MY replace the Oil Filter Adapter (OFA). For any other MY review and follow instructions from the latest STAR Online S1809000007 available on Dealer Connect. Also, consider the following: 1) Remove OFA 2) Replace only the oil inlet O-ring and gaskets (seals kit in SOL above). 3) Re-install the OFA. For 2023MY and beyond use black O-ring. For 2022MY and prior use red O-ring. Note: When replacing OFA, it may be necessary to transfer the Oil Temp/Pressure Sensor from the old OFA to the new OFA.
90033572023-04-17. Service bulletin. ENGINE AND ENGINE COOLING. ADAPTER, Engine Oil Filter (Pentastar V6) For all 2014MY replace the Oil Filter Adapter (OFA). For any other MY (with mileage above 30,000) review and follow instructions from STAR Online S1809000007 REV. C available on Dealer Connect. Also, consider the following: 1) Remove OFA 2) Replace only the oil inlet O-ring and gaskets (seals kit in SOL above). 3) Re-install the OFA. For 2023MY and beyond use black O-ring. For 2022MY and prior use red O-ring. Note: When replacing OFA, it may be necessary to transfer the Oil Temp/Pressure Sensor from the old OFA to the new OFA.
91001322023-04-17. Service bulletin. ENGINE AND ENGINE COOLING. ENGINE ASSY - 3.6L AUTO TRANS Before replacing the engine due to an abnormal ticking noise, please check that the INTAKE Hydraulic Lash Adjusters are not "collapsed". If a collapsed INTAKE HLA is found, replace all INTAKE HLAs on the suspect cylinder head. The noise can occur at low or high RPMs, and at low or high temperatures. There are no Diagnostic Trouble Codes (DTC)s present. CAUSE: INTAKE Hydraulic Lash Adjuster may have a manufacturing issue that can cause the plunger to stick, generating valvetrain noise.
08-004-232023-02-13. Service bulletin. BACK OVER PREVENTION; ENGINE AND ENGINE COOLING; STEERING; FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY; POWER TRAIN; ELECTRICAL SYSTEM. Flash: Electric Power Steering (EPS) Module Updates The customer may experience the following: A low frequency EPS motor noise during low speed steering maneuvers which may be more noticeable at higher ambient and system temperatures. This bulletin involves updating the EPS module with the latest available software.
871472023-01-17. Service bulletin. AIR BAGS; ENGINE AND ENGINE COOLING; TIRES; ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. It has been identified that the Vehicle Health Reports could at times report there is a vehicle issue which requires immediate service when there is not actually a vehicle issue.
91001032023-01-17. Service bulletin. ENGINE AND ENGINE COOLING. Engine Oil - 0W20,Fluid - ATF+4,Engine Oil - 10W30,Engine Oil - 5W20,Engine Oil - 5W30
855142023-01-09. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE AND ENGINE COOLING. Warranty Bulletin D-22-08 Fast Feedback Program ? 3.0L I6 SO Twin Turbo Engine, 3.0L I6 HO Twin Turbo Engine, Exhaust Systems, Turbocharger Assemblies, Fuel Components and Cooling Components - 2022 and 2023 Wagoneer and Grand Wagoneer (WS) (Rev. A)
851352023-01-09. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; POWER TRAIN; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. Warranty Bulletin D-22-03 Fast Feedback Program - Engine, Transmission, Axle Assemblies/Prop Shafts, Exhaust, Cooling, A/C, Brakes, Fuel, Electrical, PHEV Front-End Accessory Drive (FEAD) and EPT System Compoentns - 2022 and 2023 Jeep Grand Cherokee (WL) PHEV (Rev. A)
91000212023-01-09. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR. Seal, Crankshaft Oil, Rear,Retainer, Crankshaft Oil Seal US dealers only: If you are replacing the rear main seal due to an oil leak, do NOT remove the seal from the retainer. Replace the seal and retainer (pn# 05086755A$) as a complete unit. Engineering needs to obtain the seals and retainers back for analysis without them having been disassembled. Once repairs are complete, please contact FCA Redacted Content to return the parts.
91000852022-12-12. Service bulletin. VEHICLE SPEED CONTROL; ENGINE AND ENGINE COOLING; BACK OVER PREVENTION. Front door check If a 2022 WS Jeep Wagoneer / Grand Wagoneer comes in with a door making a popping, creaking, or clicking noise that is linked to the door check, then please contact FCA Redacted Content prior to making the repair. If you do not get a response within 15 minutes, proceed with the repair.
91000852022-11-07. Service bulletin. STRUCTURE:BODY:DOOR:HINGE AND ATTACHMENTS; ENGINE AND ENGINE COOLING; VEHICLE SPEED CONTROL. Front door check If a 2022 WS Jeep Grand Wagoneer comes in with a front door making a popping, creaking, or clicking noise. Please check each fastener of the door check strap with a torque wrench to verify fastener torque is to specification. If not, proceed with required repair.
91000822022-11-07. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM; WHEELS; EQUIPMENT; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:STARTER ASSEMBLY:SOLENOID. STARTER, Engine Prior to starter removal: 1. Inspect and check all connections to the starter motor solenoid a. Unplug and plug-in the T50 1-way connector as needed to verify the connection is good & tight and check for any bent pin in the connection. b. Inspect the T30 connection (i.e. B+ M8 threaded stud & nut) for tightness to assure cable ring terminal connection is secured and tight (use torque spec per service manual). 2. Check/verify all grounds in the cranking circuit a. Check tightness of mounting bolts that secure starter to the engine block b. Check main ground from engine to chassis c. Check battery ground cable connections are clean and tight d.Potentially, loosen both starter motor bolts, without removing, and re-tighten to torque specifications in the service manual e. After all steps above are complete, attempt to crank the engine to verify if improvement has been made (i.e. the steps fixed the customer complaint) 3. Conduct the voltage drop test (starter feed circuit) per the service manual before removing the starter motor 4. Starter Removal: conduct the removal if above steps do not fix the complaint a. Conduct bench test by applying 12 volts to motor T30 and T50 connections (i.e. conduct simple free speed test) b. Free speed test should result in starter motor pinion travel to pinion stop and rotation with normal rotational noise (i.e. no grinding, scrapping, etc.) c. If any abnormal noise is present, replace the starter motor 5. During starter removal, also remove and replace the two starter mounting bolts. Return the bolts with starter motor for analysis at QEC and the supplier warranty analysis lab.
851352022-10-31. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. Warranty Bulletin D-22-03 Fast Feedback Program - Engine, Transmission, Axle Assemblies/Prop Shafts, Exhaust, Cooling, A/C, Brakes, Fuel, Electrical, PHEV Front-End Accessory Drive (FEAD) and EPT System Compoentns - 2022 and 2023 Jeep Grand Cherokee (WL) PHEV (Rev. A) (document published on 8/5/22 with incorrect date on communication of 8/4/22)

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