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

Only bulletins with component: Suspension are shown. Show all

Bulletins, newest first
9100897Rev12026-09-17. Service bulletin. SUSPENSION. Qudra 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.
91008972026-09-10. Service bulletin. SUSPENSION. Qudra 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.
S2102000004 REV.D2026-07-02. Service bulletin. SUSPENSION. WL Front Control Arm Bushing - Handling Link Has Loose Rubber Appearance
9100811 Rev 42026-07-02. Service bulletin. SUSPENSION. Clunking when going over bumps, potholes, or turns. During diagnosis dealers may find rubber separating from the bushing on the handling link (SOL S2102000004 Rev C. for reference). This is normal and most likely is not attributed to the noise. Please follow normal diagnosis and ensure all tie-rod and ball joints are properly torqued and if worn, replace. If diagnosis leads to lower control arm replacement, the tension link(s) should be replaced first then test driven to ensure noise has disappeared before any handling link replacements.
S2503000001 REV.A2026-06-18. Service bulletin. SUSPENSION; ELECTRICAL SYSTEM. Service 4WD Message, With Any Combination Of The Following Front Axle Disconnect (FAD) Diagnostic Trouble Codes
9100811Rev32026-06-03. Service bulletin. SUSPENSION. ***68375577A$ is not showing the correct verbiage please update and correct*** Clunking when going over bumps, potholes, or turns. During diagnosis dealers may find rubber separating from the bushing on the handling link (SOL S2102000004 Rev C. for reference). This is normal and most likely is not attributed to the noise. Please follow normal diagnosis and ensure all tie-rod and ball joints are properly torqued and if worn, replace. If diagnosis leads to lower control arm replacement, the tension link(s) should be replaced first then test driven to ensure noise has disappeared before any handling link replacements.
9100811 REV12026-05-28. Service bulletin. SUSPENSION. Clunking when going over bumps, potholes, or turns. During diagnosis dealers may find rubber separating from the bushing on the handling link (SOL S2102000004 Rev C. for reference). This is normal and most likely is not attributed to the noise. Please follow normal diagnosis and ensure all tie-rod and ball joints are properly torqued and if worn, replace. If diagnosis leads to lower control arm replacement, the tension link(s) should be replaced first then test driven to ensure noise has disappeared before any handling link replacements.
91008112026-05-20. Service bulletin. SUSPENSION. Clunking when going over bumps, potholes, or turns. During diagnosis dealers may find rubber separating from the bushing on the tension link. This is normal and most likely is not attributed to the noise. Please follow normal diagnosis and ensure all tie-rod and ball joints are properly torqued and if worn, replace. If diagnosis leads to lower control arm replacement, the tension link(s) should be replaced first then test driven to ensure noise has disappeared before any handling link replacements.
S2102000004 REV.C2026-04-29. Service bulletin. SUSPENSION. WL Front Control Arm Bushing - Handling Link Has Loose
S26020000032026-04-01. Service bulletin. SUSPENSION. Clunk, Creaking, Squeaking, Knocking Noise From Front Suspension Over Bumps And Or Rough Road Conditions.
S2521000004 REV.B2026-01-21. Service bulletin. STEERING; SUSPENSION; POWER TRAIN. The customer is experiencing a clicking or pop noise from the steering knuckle and bearing area during turns while driving.
S2521000004 Rev.A2026-01-07. Service bulletin. SUSPENSION; STEERING; WHEELS. Note: actual release date was 12/22/2025 The customer is experiencing a clicking or pop noise from the steering knuckle and bearing area during turns while driving.
02-002-25 REV. A2025-09-17. Service bulletin. SUSPENSION. Shock And Strut Diagnosis And Replacement Guidelines Leaking, noisy, or weak shocks or struts.
02-002-252025-05-30. Service bulletin. SUSPENSION. "Shock And Strut Diagnosis And Replacement Guidelines Leaking, noisy, or weak shocks or struts. "
S2302000001 REV. A2024-11-22. Service bulletin. SUSPENSION. Service Air Suspension Message In Cluster. Ride Height Sensor and System Performance Diagnostic Trouble Code(s) (DTCs) In Below Freezing Temperatures.
S2102000004 REV.B2024-11-22. Service bulletin. SUSPENSION. WL Front Control Arm Bushing - Handling Link Has Loose Rubber Appearance
986282024-07-02. Other. SUSPENSION; STEERING. ARM - LOWER CONTROL
989302024-07-02. Other. SUSPENSION. ARM - LOWER CONTROL
S23020000052024-01-16. Service bulletin. SUSPENSION. Clicking Noise From Front Suspension Over Bumps Or Rough Roads.
S23020000012024-01-02. Service bulletin. SUSPENSION; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC). Service Air Suspension Message In Cluster. C15AD-92-Ride Height System- Performance In Below Freezing Temperatures.
91002292023-10-30. Service bulletin. SUSPENSION. LIFTER, Hydraulic Roller Deactivating Please do not replace MDS lifters because the disconnecting pin is not lined up, this is normal and not a defect.
S23020000042023-10-02. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); SUSPENSION; BACK OVER PREVENTION; ELECTRICAL SYSTEM; WHEELS. Air Suspension Control Module (ASCM) Wheel Acceleration Sensor Diagnostic Trouble Codes (DTCs) C15D1-01 And Or C15D2-01.
S23020000012023-04-17. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); SUSPENSION. Service Air Suspension Message In Cluster. C15AD-92-Ride Height System- Performance In Below Freezing Temperatures.
S22020000082023-01-17. Service bulletin. SUSPENSION; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC). Service Air Suspension Message In Cluster EVIC. ASCM Inoperative. Low Air Mass DTCs
S21210000132023-01-17. Service bulletin. SUSPENSION:FRONT:SPRINGS:LEAF SPRING ASSEMBLY:U-BOLT, LEAF SPRING TO AXLE. Service 4WD Message, Diagnostic Trouble Code (DTC) C1463-94 ? Front Axle Disconnect Control ? Unexpected Operation, Set

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