Jeep Grand Cherokee Service Bulletins (2026)
230 manufacturer communications on file.
- August 21, 2026•Document ID: 11036370Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- S2618000003 REV.G
- Date Added:
- August 26, 2026
- Manufacturer:
- JEEP
SummaryMIL-On, Engine Runs Rough
Associated Products (2)Associated Documents - August 20, 2026•Document ID: 11036358Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- 09-020-26
- Date Added:
- August 26, 2026
- Manufacturer:
- JEEP
SummaryUmbrella Valve Seal Missing From Cylinder Vehicle may exhibit a MIL-ON. SYMPTOM: Upon inspection the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have set: ● P0300-00 - Random/Multiple Cylinder Misfire Detected. ● P0301-00 - Cylinder 1 Misfire. ● P0302-00 - Cylinder 2 Misfire. ● P0303-00 - Cylinder 3 Misfire. ● P0304-00 - Cylinder 4 Misfire. This bulletin involves inspecting for a missing umbrella valve seal on the underside of the cylinder head cover and, if necessary, replacing the cylinder head cover.
Associated Products (2)Associated Documents - August 19, 2026•Document ID: 11036357Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- 09-017-26 REV. A
- Date Added:
- August 26, 2026
- Manufacturer:
- JEEP
SummaryUmbrella Valve Seal Missing From Cylinder Head Cover Customer may experience a MIL-ON and/or an indication of low engine oil level. SYMPTOM: Upon inspection the technician may find the following: 1. One or more of the following Diagnostic Trouble Codes (DTCs) have set: ● P0300-00 - Random/Multiple Cylinder Misfire Detected. ● P0301-00 - Cylinder 1 Misfire. ● P0302-00 - Cylinder 2 Misfire. ● P0303-00 - Cylinder 3 Misfire. ● P0304-00 - Cylinder 4 Misfire. 2. Engine oil level is low. IMPORTANT! If none of above symptoms are present, this TSB does NOT apply. This bulletin involves inspecting the engine oil level, possibly inspecting for a missing umbrella valve seal on the underside of the cylinder head cover and, if necessary, replacing the cylinder head cover.
Associated Products (2)Associated Documents - August 14, 2026•Document ID: 11036280Service Bulletin/Repair InstructionsSTEERING; WHEELS
- Mfr Comm. #:
- S2523000032 REV.B
- Date Added:
- August 19, 2026
- Manufacturer:
- JEEP
SummarySteering Dragging While Recreational Flat Towing Behind RV.
Associated Products (12)2026 Jeep Grand Cherokee2026 Jeep Grand Cherokee L2025 Jeep Grand Cherokee2025 Jeep Grand Cherokee L2024 Jeep Grand Cherokee2024 Jeep Grand Cherokee L2023 Jeep Grand Cherokee2023 Jeep Grand Cherokee L2022 Jeep Grand Cherokee2022 Jeep Grand Cherokee L2021 Jeep Grand Cherokee2021 Jeep Grand Cherokee LAssociated Documents - August 14, 2026•Document ID: 11036279Service Bulletin/Repair InstructionsBACK OVER PREVENTION: WARNINGS
- Mfr Comm. #:
- S2508000029 REV.B
- Date Added:
- August 19, 2026
- Manufacturer:
- JEEP
SummaryInstrument Panel Cluster (IPC) Message “Park Assist System Unavailable” or “Service Park Assist System”, “Rear Braking Assist Unavailable” or “Service Rear Braking Assist System" with Performance Diagnostic Trouble Codes (DTCs)
Associated Products (19)2026 Jeep Grand Cherokee2026 Jeep Grand Cherokee L2026 Jeep Grand Wagoneer2025 Jeep Grand Cherokee2025 Jeep Grand Cherokee L2025 Jeep Grand Wagoneer2025 Jeep Wagoneer2024 Jeep Grand Cherokee2024 Jeep Grand Cherokee L2024 Jeep Grand Wagoneer2024 Jeep Wagoneer2023 Jeep Grand Cherokee2023 Jeep Grand Cherokee L2023 Jeep Grand Wagoneer2023 Jeep Wagoneer2022 Jeep Grand Cherokee2022 Jeep Grand Cherokee L2022 Jeep Grand Wagoneer2022 Jeep WagoneerAssociated Documents - August 13, 2026•Document ID: 11036278Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- S2618000003 REV.F
- Date Added:
- August 19, 2026
- Manufacturer:
- JEEP
SummaryMIL-On, Engine Runs Rough
Associated Products (2)Associated Documents - August 8, 2026•Document ID: 11036160Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- 09-019-26
- Date Added:
- August 13, 2026
- Manufacturer:
- JEEP
SummaryPotential Engine Oil Overfill Customers may comment on the following: SYMPTOM: ● Misfires or sluggish engine performance. This bulletin involves inspecting the engine oil level and possibly performing an engine oil change.
Associated Products (2)Associated Documents - August 7, 2026•Document ID: 11036182Service Bulletin/Repair InstructionsAIR BAGS; ELECTRICAL SYSTEM
- Mfr Comm. #:
- S2623000052
- Date Added:
- August 13, 2026
- Manufacturer:
- JEEP
SummaryAirbag Warning Light On or Intermittent. The Occupant Restraint Controller (ORC) May Have The Following DTCs (Active/Stored)
Associated Products (11)Associated Documents - August 7, 2026•Document ID: 11036155Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- 08-310-26
- Date Added:
- August 13, 2026
- Manufacturer:
- JEEP
SummaryMalfunction Indicator Lamp (MIL) With Diagnostic Trouble Code (DTC) P0607 Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set the following Diagnostic Trouble Code (DTC): ● P0607-00 - ECU Internal Performance. Customers may also comment on the following: ● The check engine lamp is illuminated on the Instrument Panel Cluster (IPC) when the vehicle is started.
Associated Products (2)Associated Documents - August 5, 2026•Document ID: 11036172Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- 113835
- Date Added:
- August 13, 2026
- Manufacturer:
- JEEP
SummaryCOVER - CYLINDER HEAD
Associated Products (4)Associated Documents - August 5, 2026•Document ID: 11036158Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- 09-017-26
- Date Added:
- August 13, 2026
- Manufacturer:
- JEEP
SummaryUmbrella Valve Seal Missing From Cylinder Head Cover Customer may experience a MIL-ON and/or an indication of low engine oil level. SYMPTOM: Upon inspection the technician may find the following: 1. One or more of the following Diagnostic Trouble Codes (DTCs) have set: ● P0300-00 - Random/Multiple Cylinder Misfire Detected. ● P0301-00 - Cylinder 1 Misfire. ● P0302-00 - Cylinder 2 Misfire. ● P0303-00 - Cylinder 3 Misfire. ● P0304-00 - Cylinder 4 Misfire. 2. Engine oil level is low. IMPORTANT! If none of above symptoms are present, this TSB does NOT apply. This bulletin involves inspecting the engine oil level, possibly inspecting for a missing umbrella valve seal on the underside of the cylinder head cover and, if necessary, replacing the cylinder head cover
Associated Products (1)Associated Documents - August 4, 2026•Document ID: 11036180Service Bulletin/Repair InstructionsBACK OVER PREVENTION: WARNINGS
- Mfr Comm. #:
- S2508000029 REV.A
- Date Added:
- August 13, 2026
- Manufacturer:
- JEEP
SummaryInstrument Panel Cluster (IPC) Message “Park Assist System Unavailable” or “Service Park Assist System”, “Rear Braking Assist Unavailable” or “Service Rear Braking Assist System" with Performance Diagnostic Trouble Codes (DTCs)
Associated Products (15)2026 Jeep Grand Cherokee2026 Jeep Grand Cherokee L2026 Jeep Grand Wagoneer2025 Jeep Grand Cherokee2025 Jeep Grand Cherokee L2025 Jeep Grand Wagoneer2025 Jeep Wagoneer2024 Jeep Grand Cherokee2024 Jeep Grand Cherokee L2024 Jeep Grand Wagoneer2024 Jeep Wagoneer2023 Jeep Grand Cherokee2023 Jeep Grand Cherokee L2023 Jeep Grand Wagoneer2023 Jeep WagoneerAssociated Documents - August 3, 2026•Document ID: 11036170Service Bulletin/Repair InstructionsSTRUCTURE:BODY
- Mfr Comm. #:
- 113801
- Date Added:
- August 13, 2026
- Manufacturer:
- JEEP
SummarySEAL - LOWER AGS
Associated Products (10)Associated Documents - July 31, 2026•Document ID: 11035996Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- S268A000016
- Date Added:
- August 6, 2026
- Manufacturer:
- JEEP
SummaryR1L Radio Screen Goes Blank after transitioning from logistic to customer mode
Associated Products (12)Associated Documents - July 30, 2026•Document ID: 11035971Service Bulletin/Repair InstructionsPOWER TRAIN
- Mfr Comm. #:
- 08-289-26 REV. A
- Date Added:
- August 6, 2026
- Manufacturer:
- JEEP
SummaryTransmission Control Module (TCM) Diagnostic N/A - This bulletin was released in error. SYMPTOM:
Associated Products (4)Associated Documents - July 22, 2026•Document ID: 11035327Service CampaignENGINE
- Mfr Comm. #:
- 66D Dealer
- Date Added:
- July 29, 2026
- Manufacturer:
- JEEP
SummarySpark Plugs The spark plugs insulator on approximately 48,000 of the above vehicles may break due to excessive cylinder pressure. This pressure can cause the spark plug's ceramic insulator to crack, leading to a rough running engine. If this issue is not resolved promptly, the broken fragments can fall into the cylinder and cause internal engine damage.
Associated Products (2)Associated Documents - July 22, 2026•Document ID: 11035313Service Bulletin/Repair InstructionsPOWER TRAIN; ELECTRICAL SYSTEM
- Mfr Comm. #:
- 08-289-26
- Date Added:
- July 29, 2026
- Manufacturer:
- JEEP
SummaryTransmission Control Module (TCM) Diagnostic Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following DTCs: ● P2797-00 - Auxiliary Transmission Fluid Pump Performance ● P1625-00 - Park Pawl System Failure NOTE: Park system still functions, no impact to park engagement. NOTE: Vehicle will not experience unintended movement. Customers may also experience one or more of the following: ● Vehicle no start due to battery discharge. ● 'Start/stop inop' message. ● 'Service Transmission' message on in Instrument Panel Cluster (IPC).
Associated Products (4)Associated Documents - July 20, 2026•Document ID: 11035333Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- 113558
- Date Added:
- July 29, 2026
- Manufacturer:
- JEEP
SummaryEVAPORATOR - AIR CONDITIONING
Associated Products (10)Associated Documents - July 20, 2026•Document ID: 11035330Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- 113553
- Date Added:
- July 29, 2026
- Manufacturer:
- JEEP
SummaryEVAPORATOR - AIR CONDITIONING
Associated Products (10)Associated Documents - July 20, 2026•Document ID: 11035329Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- 113554
- Date Added:
- July 29, 2026
- Manufacturer:
- JEEP
SummaryEVAPORATOR - AIR CONDITIONING
Associated Products (10)Associated Documents