Jeep Grand Cherokee Service Bulletins (2018)
447 manufacturer communications on file.
- September 30, 2026•Document ID: 11038329Service Bulletin/Repair InstructionsPOWER TRAIN
- Mfr Comm. #:
- S2621000004
- Date Added:
- October 7, 2026
- Manufacturer:
- JEEP
SummaryThe Customer May Complain About a Popping Noise, Grinding Noise, or an Intermittent No Reverse or Forward Transmission Engagement. The Tech May Find Damaged and/or Worn Transmission Output Shaft Splines (850RE Transmission Only)
Associated Products (69)2027 Jeep Grand Cherokee2027 Jeep Grand Cherokee L2026 Dodge Durango2026 Jeep Gladiator2026 Jeep Grand Cherokee2026 Jeep Grand Cherokee L2026 Jeep Wrangler2026 Ram 15002025 Dodge Durango2025 Jeep Gladiator2025 Jeep Grand Cherokee2025 Jeep Grand Cherokee L2025 Jeep Wrangler2025 Ram 15002024 Dodge Durango2024 Jeep Gladiator2024 Jeep Grand Cherokee2024 Jeep Grand Cherokee L2024 Jeep Wrangler2024 Ram 1500+ 49 moreAssociated Documents - September 10, 2026•Document ID: 11037351Service Bulletin/Repair InstructionsSUSPENSION
- Mfr Comm. #:
- 9100897Rev1
- Date Added:
- September 17, 2026
- Manufacturer:
- JEEP
SummaryQudra Lift Reman Compressor Excessive Repairs on Quadra Lift Reman Compressors Part Numbers: 68041137AF / R8572790AA / 68087233AA / 52124932AE / 52124934AE / 68064343AC Purpose The Star Parts Catalog has been updated to support component-level repair of the Quadra-Lift air suspension system. Replace only the component confirmed failed through diagnostics. Avoid replacing the complete assembly when an individual service component can correct the concern. Available Service Components Part Number Description R8572790AA Air Suspension Compressor 68087233AA Air Suspension Valve Block 52124932AE Front Air Suspension Hose Assembly 52124934AE Rear Air Suspension Hose Assembly 68064343AC Air Suspension Reservoir 68087240AA Temperature Sensor 68041137AF Compressor Assembly Diagnostic Decision Tree Customer Complaint: Service Air Suspension Message / Sagging / Unable to Adjust Ride Height / Compressor Running Continuously. Step 1: Retrieve and record all DTCs. C15D9 (Low Air Mass): Perform air mass test, complete system fill, leak-down test, and leak source identification before compressor replacement. C15A1 (Unable to Obtain Desired Ride Height): Verify ride height, perform leak-down test, inspect valve block, air lines, and air springs. C1562-98 (Over Temperature): Inspect for excessive compressor run time, leaks, low air mass, and restrictions before condemning the compressor. If a leak is found, repair the leak and verify operation before replacing the compressor. If no leak is found, perform compressor functional evaluation. If moisture is in the lines and valve block, then evacuate or replace lines. Only replace the compressor when a defect is verified (internal leak, failed solenoid, weak output, seized motor, failed functional test, or electrical failure). Service Component Selection Guide Verified Root Cause Recommended Repair Compressor Internal Failure Replace Compressor Valve Block Failure Replace Valve Block Air Line Leak Replace Air Line Air Spring Leak Replace Air Spring Temperature Sensor Failure Replace Temperature Sensor Technician Reminder Replace only the component confirmed failed through diagnostics. In many cases, compressor replacement is not required when the root cause is an air leak, valve block issue, airline concern, or sensor fault.
Associated Products (12)Associated Documents - September 10, 2026•Document ID: 11037341Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- 114538
- Date Added:
- September 17, 2026
- Manufacturer:
- DODGE
SummaryEVAPORATOR - AIR CONDITIONING
Associated Products (14)Associated Documents - September 10, 2026•Document ID: 11037340Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- 114537
- Date Added:
- September 17, 2026
- Manufacturer:
- DODGE
SummaryEVAPORATOR - AIR CONDITIONING
Associated Products (14)Associated Documents - September 3, 2026•Document ID: 11037270Service Bulletin/Repair InstructionsSUSPENSION
- Mfr Comm. #:
- 9100897
- Date Added:
- September 10, 2026
- Manufacturer:
- JEEP
SummaryQudra Lift Reman Compressor Excessive Repairs on Quadra Lift Reman Compressors Part Numbers: 68041137AF / R8572790AA / 68087233AA / 52124932AE / 52124934AE / 68064343AC Purpose The Star Parts Catalog has been updated to support component-level repair of the Quadra-Lift air suspension system. Replace only the component confirmed failed through diagnostics. Avoid replacing the complete assembly when an individual service component can correct the concern. Available Service Components Part Number Description R8572790AA Air Suspension Compressor 68087233AA Air Suspension Valve Block 52124932AE Front Air Suspension Hose Assembly 52124934AE Rear Air Suspension Hose Assembly 68064343AC Air Suspension Temperature Sensor 68041137AF Service Components Reference Diagnostic Decision Tree Customer Complaint: Service Air Suspension Message / Sagging / Unable to Adjust Ride Height / Compressor Running Continuously. Step 1: Retrieve and record all DTCs. C15D9 (Low Air Mass): Perform air mass test, complete system fill, leak-down test, and leak source identification before compressor replacement. C15A1 (Unable to Obtain Desired Ride Height): Verify ride height, perform leak-down test, inspect valve block, air lines, and air springs. C1562-98 (Over Temperature): Inspect for excessive compressor run time, leaks, low air mass, and restrictions before condemning the compressor. If a leak is found, repair the leak and verify operation before replacing the compressor. If no leak is found, perform compressor functional evaluation. If moisture is in the lines and valve block, then evacuate or replace lines. Only replace the compressor when a defect is verified (internal leak, failed solenoid, weak output, seized motor, failed functional test, or electrical failure). Service Component Selection Guide Verified Root Cause Recommended Repair Compressor Internal Failure Replace Compressor Valve Block Failure Replace Valve Block Air Line Leak Replace Air Line Air Spring Leak Replace Air Spring Temperature Sensor Failure Replace Temperature Sensor Technician Reminder Replace only the component confirmed failed through diagnostics. In many cases, compressor replacement is not required when the root cause is an air leak, valve block issue, airline concern, or sensor fault.
Associated Products (12)Associated Documents - June 26, 2026•Document ID: 11034385Service Bulletin/Repair InstructionsSTRUCTURE:BODY
- Mfr Comm. #:
- S2208000045 REV.D
- Date Added:
- July 2, 2026
- Manufacturer:
- DODGE
SummaryBackup Camera Poor Image Quality Inspection
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- Mfr Comm. #:
- S1623000028 Rev. K
- Date Added:
- June 18, 2026
- Manufacturer:
- JEEP
SummaryOutside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window Glass In The Folded Position.
Associated Products (129)2026 Chrysler Pacifica2026 Chrysler Voyager2026 Dodge Durango2026 Jeep Grand Cherokee2026 Jeep Grand Cherokee L2026 Jeep Grand Wagoneer2026 Jeep Wagoneer2026 Ram 15002026 Ram 25002026 Ram 35002026 Ram 45002026 Ram 55002025 Chrysler Pacifica2025 Chrysler Voyager2025 Dodge Durango2025 Jeep Grand Cherokee2025 Jeep Grand Cherokee L2025 Jeep Grand Wagoneer2025 Jeep Wagoneer2025 Ram 1500+ 109 moreAssociated Documents - June 5, 2026•Document ID: 11033897Service Bulletin/Repair InstructionsSTRUCTURE:BODY
- Mfr Comm. #:
- S1623000028 REV.J
- Date Added:
- June 16, 2026
- Manufacturer:
- RAM
SummaryOutside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window Glass In The Folded Position.
Associated Products (130)2026 Chrysler Pacifica2026 Chrysler Voyager2026 Dodge Durango2026 Jeep Grand Cherokee2026 Jeep Grand Cherokee L2026 Jeep Grand Wagoneer2026 Jeep Wagoneer2026 Ram 15002026 Ram 25002026 Ram 35002026 Ram 45002026 Ram 55002025 Chrysler Pacifica2025 Chrysler Voyager2025 Dodge Durango2025 Jeep Grand Cherokee2025 Jeep Grand Cherokee L2025 Jeep Grand Wagoneer2025 Jeep Wagoneer2025 Ram 1500+ 110 moreAssociated Documents - May 29, 2026•Document ID: 11033308Service Bulletin/Repair InstructionsSTRUCTURE:BODY; ELECTRICAL SYSTEM
- Mfr Comm. #:
- S1623000028 REV.I
- Date Added:
- June 3, 2026
- Manufacturer:
- CHRYSLER
SummaryOutside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window Glass In The Folded Position.
Associated Products (131)2026 Chrysler Pacifica2026 Chrysler Voyager2026 Dodge Durango2026 Jeep Grand Cherokee2026 Jeep Grand Cherokee L2026 Jeep Grand Wagoneer2026 Jeep Wagoneer2026 Ram 15002026 Ram 25002026 Ram 35002026 Ram 45002026 Ram 55002025 Chrysler Pacifica2025 Chrysler Voyager2025 Dodge Durango2025 Jeep Grand Cherokee2025 Jeep Grand Cherokee L2025 Jeep Grand Wagoneer2025 Jeep Wagoneer2025 Ram 1500+ 111 moreAssociated Documents - April 8, 2026•Document ID: 11031337Service Bulletin/Repair InstructionsPOWER TRAIN; ELECTRICAL SYSTEM
- Mfr Comm. #:
- S2623000023
- Date Added:
- April 15, 2026
- Manufacturer:
- DODGE
SummaryPower Liftgate Inoperative.
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- Mfr Comm. #:
- S1623000028 REV.H
- Date Added:
- April 10, 2026
- Manufacturer:
- DODGE
SummaryOutside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window Glass In The Folded Position.
Associated Products (131)2026 Chrysler Pacifica2026 Chrysler Voyager2026 Dodge Durango2026 Jeep Grand Cherokee2026 Jeep Grand Cherokee L2026 Jeep Grand Wagoneer2026 Jeep Wagoneer2026 Ram 15002026 Ram 25002026 Ram 35002026 Ram 45002026 Ram 55002025 Chrysler Pacifica2025 Chrysler Voyager2025 Dodge Durango2025 Jeep Grand Cherokee2025 Jeep Grand Cherokee L2025 Jeep Grand Wagoneer2025 Jeep Wagoneer2025 Ram 1500+ 111 moreAssociated Documents - March 9, 2026•Document ID: 11030138Service Bulletin/Repair InstructionsPOWER TRAIN
- Mfr Comm. #:
- S2621000003 REV.A
- Date Added:
- March 18, 2026
- Manufacturer:
- DODGE
SummaryThe vehicle will exhibit a service transmission/check engine warning indicator for the following transmission models: 845RE, 8HP45, 850RE, 8HP50, 8HP70, 8HP75, 8HP75-PHEV, 8HP75-LCV, 8HP90, 8HP95. Transmissions may exhibit the following diagnostic codes: P07E4, P1DB2, P0716, P1B14, P0733, P1D90, P1DB7, P1B13.
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- Mfr Comm. #:
- S2608000010
- Date Added:
- March 13, 2026
- Manufacturer:
- JEEP
SummaryActive Diagnostic Trouble Code (DTC) B1A10-00, B1A11-00, B1A12- 00, B1A13-00-, B1A14-00, B1A15-00, B1A16-00, and B1A17-00 in The Radio Frequency Hub (RFH)
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- Mfr Comm. #:
- S1408000384 REV.J
- Date Added:
- March 13, 2026
- Manufacturer:
- JEEP
SummaryStart 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
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- Mfr Comm. #:
- S2621000003
- Date Added:
- March 5, 2026
- Manufacturer:
- JEEP
SummaryService transmission/check engine warning indicator for the 850RE, 8HP50, 8HP70, 8HP75, 8HP75-PHEV transmissions that have fault codes P07E4, P1DB2, P0716, P1B14, P0733, P1D90, P1DB7, P1B13.
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- Mfr Comm. #:
- S1408000384 REV.I
- Date Added:
- February 19, 2026
- Manufacturer:
- FIAT
SummaryStart 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
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- Mfr Comm. #:
- 109727
- Date Added:
- January 28, 2026
- Manufacturer:
- DODGE
SummaryWater Pump & Chain Case Cover
Associated Products (72)2026 Chrysler Pacifica2026 Chrysler Voyager2026 Dodge Durango2026 Jeep Grand Cherokee2026 Jeep Grand Cherokee L2026 Jeep Grand Wagoneer2026 Jeep Wagoneer2026 Jeep Wrangler2026 Ram 15002025 Chrysler Pacifica2025 Chrysler Voyager2025 Dodge Durango2025 Jeep Grand Cherokee2025 Jeep Grand Cherokee L2025 Jeep Grand Wagoneer2025 Jeep Wagoneer2025 Jeep Wrangler2025 Ram 15002024 Chrysler Pacifica2024 Chrysler Voyager+ 52 moreAssociated Documents - January 21, 2026•Document ID: 11027836Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- 109724
- Date Added:
- January 28, 2026
- Manufacturer:
- JEEP
SummaryWater Pump & Chain Case Cover
Associated Products (72)2026 Chrysler Pacifica2026 Chrysler Voyager2026 Dodge Durango2026 Jeep Grand Cherokee2026 Jeep Grand Cherokee L2026 Jeep Grand Wagoneer2026 Jeep Wagoneer2026 Jeep Wrangler2026 Ram 15002025 Chrysler Pacifica2025 Chrysler Voyager2025 Dodge Durango2025 Jeep Grand Cherokee2025 Jeep Grand Cherokee L2025 Jeep Grand Wagoneer2025 Jeep Wagoneer2025 Jeep Wrangler2025 Ram 15002024 Chrysler Pacifica2024 Chrysler Voyager+ 52 moreAssociated Documents - January 14, 2026•Document ID: 11027729Service Bulletin/Repair InstructionsPOWER TRAIN
- Mfr Comm. #:
- 18-001-26
- Date Added:
- January 21, 2026
- Manufacturer:
- JEEP
SummaryFlash: 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): ● P0420 - Catalyst System Efficiency Below Threshold Bank 1. ● P0430 - Catalyst System Efficiency Below Threshold Bank 2. Customers may also experience the following: ● Catalyst damage and restricted exhaust flow, resulting in a reduction of engine power. This bulletin involves reprogramming the PCM with the latest available software.
Associated Products (1)Associated Documents - January 10, 2026•Document ID: 11027640Service Bulletin/Repair InstructionsPOWER TRAIN
- Mfr Comm. #:
- 21-009-26
- Date Added:
- January 14, 2026
- Manufacturer:
- JEEP
SummaryFlash: Transmission Control Module (TCM) Updates *Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):** ● P0979-00 - Shift Solenoid 3 Control Circuit Low. ● P0219-00 - Engine Overspeed Condition. ● P0731-00 - Gear 1 Shift Incorrect Ratio. **Customers may experience the following: ● Shift shudder and shift shock during wide open throttle, high clutch energy shift.** The following software update is also included: ● Improved high RPM in coasting situations for the 1-2 shift This bulletin involves reprogramming the TCM with the latest available software.
Associated Products (1)Associated Documents