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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
90044072022-09-15. Service bulletin. SUSPENSION. COMPRESSOR ASSEMBLY, Air Suspension, Module ASCM replacement is rarely necessary. If the DTC is stored and able to be cleared, component replacement is not necessary. Please follow the service procedures to attempt to clear any active fault(s) which includes module hard reset, full CAN power down/sleep, or DTC clear in WiTech. Please contact FCA Redacted Content prior to any ASCM replacement at FCA Redacted Content If no response within 15 minutes, please proceed with repair. Any new module requires a flash following installation.
S21020000062022-08-22. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); SUSPENSION. Service Air Suspension Displayed On EVIC. Air Suspension Inoperative C15AD-92-RIDE HEIGHT SYSTEM- PERFORMANCE
S2102000004 12022-08-22. Service bulletin. SUSPENSION; PARKING BRAKE. WL Front Control Arm Bushing - Handling Link Has Loose Rubber Appearance
S21170000012022-08-22. Service bulletin. SUSPENSION. Rear Air Spring Appearance
S21080001872022-08-22. Service bulletin. SUSPENSION. Vehicle Language Reverts To Italian After Shutting Off Vehicle
S21020000042022-08-22. Service bulletin. SUSPENSION; PARKING BRAKE. WL Front Control Arm Bushing - Handling Link Has Loose Rubber Appearance (Incorrect "S2123000004" indicated on published document)
08-109-222022-06-27. Service bulletin. ELECTRICAL SYSTEM; SUSPENSION; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC). Air Suspension Control Module (ASCM) Updates For Diagnostic Trouble Code (DTC) U0300-00 This bulletin involves informing the technician about reprogramming the ASCM with the latest available software after replacement of the new ASCM only. The replacement ASCM will set DTC: U0300-00 - Internal Control Module Software Incompatibility-.
S22020000032022-06-27. Service bulletin. SUSPENSION; EQUIPMENT; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC). Low Air Mass C15D9-00 DTC Service Air Suspension Message And Or Air Woosh Noise.
757452022-05-31. Service bulletin. SUSPENSION:FRONT:HUB; SUSPENSION:FRONT:WHEEL BEARING. HUB AND BEARING - WHEEL
S22020000032022-05-31. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); SUSPENSION. Low Air Mass C15D9-00 DTC Service Air Suspension Message
02-007-212021-12-13. Service bulletin. SUSPENSION; ELECTRICAL SYSTEM. Air Suspension Slow to Change Height This bulletin involves inspecting the vehicle for pinched front air suspension lines. The customer may notice a ?Service Air Suspension? message in the cluster. Upon further investigation a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) set:C1556-16 - Height Sensors Implausible - Out Of Plane C1567-85 - Left Front Ride Height Level Performance-Signal Above Allowable Range C1569-85 - Right Front Ride Height Level Performance-Signal Above Allowable Range C15A2-00 - Ride Height System Unlevel. C15A1-00 - Unable to Obtain Desired Ride Height. C15A0-01 - There is an internal fault in control unit "Suspension". The temperature is above threshold. C15AD-92 - Ride Height System- Perfor- Mance Or Incorrect Operation. C220C-98 - Active Suspension Module Internal- Component Or System Over Temperature. Customers may also experience one or more of the following: Slow changes in ride heights. Ride height changes denied due Air Suspension Control Module (ASCM) timing out. Uneven front suspension. Air suspension inoperable.
S2102000010 Rev.2021-12-13. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); ELECTRICAL SYSTEM; SUSPENSION. Ride Height Not Permitted Due To Transport Mode Message In Cluster Information Center. Air Suspension Switch Leds OFF
S21020000102021-12-13. Service bulletin. SUSPENSION. Ride Height Not Permitted Due To Transport Mode Message In Cluster Information Center. Air Suspension Switch Leds OFF
S21080001012021-05-24. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); SUSPENSION. Suspension Mode Does Not Change To Firm Suspension When Selected
Y05 Combo2021-04-26. Service bulletin. SUSPENSION. Customer Satisfaction Notification Y05 Rear Axle

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