WenmarOpen by Wenmar Pro

Service bulletins for the 2021 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.

1325 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Bulletins, newest first
S2108000249 REV.C2024-08-12. Service bulletin. STRUCTURE:BODY. Cluster and Radio Display Settings Revert Back to Default Settings, Auto Door Locks and Paddle Shifter Inoperative With No Menu to Enable, Pedestrian Emergency Brake (PEB) Lamp and Forward Collision Warning (FCW) Lamp on After a Recent Service Repair no Diagnostic Trouble Codes (DTCs)
S24230000362024-08-09. Service bulletin. SEATS. Third Row Upper Seat Back Handle Inoperative And Or Cables Disconnected.
995002024-07-31. Other. POWER TRAIN. CARRIER – PLANETARY & SHAFT KIT - OUTPUT
31-001-242024-07-30. Service bulletin. STRUCTURE:BODY. "Aluminum Body Panel Corrosion Repair Aluminum corrosion or bubbling along the leading edge of hood, hinges or other exterior surface areas of the hinges, doors, fenders, swing gates or liftgates. NOTE: Verify current warranty policy to determine if digital imaging pre-authorization is required or pre-approval is required from the Regional Office; depending on market. This bulletin involves inspecting and if necessary removing corrosion and refinishing the suspect aluminum panels on the vehicle, hood, door, fenders, hinges, swing gates or liftgate panels."
S24080000792024-07-19. Service bulletin. STRUCTURE:BODY; ELECTRICAL SYSTEM. Low Battery, No Crank No Start, Cluster Message “Service Keyless System”, Intermittent Power Liftgate Operation
S24210000012024-07-18. Service bulletin. POWER TRAIN. No Reverse And/Or Forward Gear After D-Clutch Repair.
91003902024-07-18. Service bulletin. POWER TRAIN. D Clutch Repair Kit TSB 21-039-24 REV A - D-Clutch repair kit missing Carrier Output Shaft Seals It has been identified the Carrier Output Shaft is missing 2 seals for some of the kits delivered to dealers. These seals are not available individually. MOPAR is working to get the parts. Do not rebuild the transmission without these seals otherwise the vehicle will not have reverse. Please refer to STAR Online Publication S2421000001 for instructions for inspecting if the seals are present on the Output Shaft Carrier Shaft. If seals are missing, please return the D-Clutch Kit as defective and order another kit. Transmission replacement is not recommended as this issue should be solved with replacement kits.
91003862024-07-11. Service bulletin. ELECTRICAL SYSTEM. Security Gateway Module Battery Voltage - Circuit Voltage Below Threshold - DTC B2199-16 Repair Action : 1) Check OR Replacing cabling. 2) Check OR Replacing connector. 3) Check the battery is good OR Replacing battery. 4) Check OR Replacing FUSE. 5) Check SGW terminal. Battery Voltage - Circuit Voltage Above Threshold - DTC B2199-17 Repair Action : 1) Check OR Replacing cabling. 2) Check OR Replacing connector. 3) Check the battery is good OR Replacing battery. 4) Check OR Replacing FUSE. 5) Check SGW terminal. CAN Bus- [C-CAN1] (Node mute) or CAN Bus Off Performance- (Bus off failure) - Check DTC in DTC matrix Repair Action: 1) CAN Lines Check 2) Read Fault memory of all nodes 3) Check and download the right calibration file for current vehicle configuration Ethernet Bus Failure - Check DTC Repair Action: 1) CAN Lines Check 2) Read Fault memory of all nodes 3) Check and download the right calibration file for current vehicle configuration ECU-In-Plant-Mode - B235A-00 Repair Action: Install Calibration file with correct policy Ecu Internal Performance - Internal Electronic Failure - DTC B22A9-49 Repair Action: 1. If its in store clear and check again if DTC shows up. 2. Check battery voltage 3. Issue still exist then change ECU ECU Not Programmed / Flash Required (No Valid Application) - DTC C221C-00 Repair Action: 1. Reflash ECU with correct file Control Module Security Certificate Missing/Invalid - DTC U3033-00 or U3033-01 Repair Action: 1. Check connectivity 2. Ethernet network 3. Flash with the latest FOTA App Code 4. Flash the cert store with correct certificate 5. Clear Faults
S24230000342024-07-08. Service bulletin. STRUCTURE:BODY. Defroster Grille Has Gaps And Or Is Not Sitting Flush.
91003582024-07-04. Service bulletin. ELECTRICAL SYSTEM. FPDM Please DO NOT immediately replace the display, Please follow the following steps. 1. Perform a vehicle battery disconnect to reset the display. Then check the Display function. If Display is still black, replace the display. 2. If screen is recovered, perform a radio Factory reset through the Display. Go to Vehicle menu > Settings > Reset > Factory reset. 3. Then Perform 2 full Ignition Key cycles and check display function. Turn the vehicle off, then open the door and close the door. Then wait until the cluster goes completely off before turning on the car again. 4. If still having screen issues, replace the Display.
S1408000384 REV.F2024-07-02. Service bulletin. ELECTRICAL SYSTEM; ENGINE. "Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor (IBS) State of Charge (SOC) Inaccurate, Battery Charging Message, Presence of IBS related Diagnostic Trouble Codes (DTCs), or Battery Warning Lamp On "
08-153-242024-07-02. Service bulletin. STRUCTURE:BODY. "Rear Taillamp Condensation Clearing Procedure On occasion, vehicle exterior taillamp assemblies are fogged with a light layer of condensation on the inside of the lenses Fig. 1. This may be reported after the lamps have been turned on and brought up to operating temperature, turned off and then rapidly cooled by cold water (such as rain, or the water from a vehicle wash). Lens fogging can also occur under certain atmospheric conditions after a vehicle has been parked outside overnight (i.e. a warm humid day followed by clear cool night). This will usually clear as atmospheric conditions change to allow the condensation to change back into a vapor. Turning the taillamps on will usually accelerate this process. This bulletin is to communicate the procedure for rear taillamp condensation clearing."
08-146-242024-07-02. Service bulletin. FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING; ELECTRICAL SYSTEM; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL; UNKNOWN OR OTHER; FORWARD COLLISION AVOIDANCE: WARNINGS. "Mid - Range Radar 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): ● C00C4-49 Rear Radar Module 'A' - Internal Electronic Failure. Customers may also experience the following: ● Blind Spot Warning Mid Range Radar warning light on in instrument cluster. This bulletin involves replacing the rear Mid - Range Radar Module."
986282024-07-02. Other. SUSPENSION; STEERING. ARM - LOWER CONTROL
989302024-07-02. Other. SUSPENSION. ARM - LOWER CONTROL
S24080000662024-06-28. Service bulletin. ELECTRICAL SYSTEM. Drained Battery, Low System Voltage, Battery Not Charging, High System Voltage
989332024-06-26. Other. ENGINE. PUMP – WATER & CONNECTOR - OIL COOLER TUBE
989312024-06-26. Other. ENGINE. PUMP – WATER & CONNECTOR - OIL COOLER TUBE
21-039-24 REV. A2024-06-18. Service bulletin. POWER TRAIN. "D Clutch Repair Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ● P0733-00 - Gear 3 Shift Incorrect Ratio. ● P1DA8-00 - Incorrect Gear Ratio Clutch A B or D Defective. ● P1D92-00 - Incorrect Gear Ratio - Clutch 4 Defective. This bulletin involves replacing the D clutch."
S228A000005 REV.D2024-06-17. Service bulletin. ELECTRICAL SYSTEM. Uconnect Box Error Message, With Active or Stored Cellular Antenna Open or Short Diagnostic Trouble Codes (DTCs)
91003562024-06-14. Service bulletin. AIR BAGS; ELECTRICAL SYSTEM. MODULE Occupant Restraint After Battery Drainage ORC do not work. Please follow the following steps. 1. Check ORC proxi, if the ORC is not aligned, perform proxi alignment, reset module. 2. If proxi is correct, reset module 3. Check for DTCs, and check wiring and components related to those DTCs and clear them.
S2307000002 REV.B2024-06-11. Service bulletin. ENGINE. Suspected Engine Coolant Leak
21-039-242024-06-07. Service bulletin. POWER TRAIN. "D Clutch Repair Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ● P0733-00 - Gear 3 Shift Incorrect Ratio. ● P1DA8-00 - Incorrect Gear Ratio Clutch A B or D Defective. ● P1D92-00 - Incorrect Gear Ratio - Clutch 4 Defective. This bulletin involves replacing the D clutch."
S2307000002 REV.A2024-06-07. Service bulletin. ENGINE. Suspected Engine Coolant Leak
18-043-242024-06-06. 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): ● P219A - Bank 1 Air-fuel Ratio Imbalance. ● P219B - Bank 2 Air-fuel Ratio Imbalance. The customer may experience one or more of the following: ● Drivability issues. ● Lack of torque delivery. This bulletin involves reprogramming the PCM with the latest available software."

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