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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: Adaptive cruise control are shown. Show all

Bulletins, newest first
S2108000236 REV.B2025-08-13. Service bulletin. ELECTRICAL SYSTEM; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL. Windshield HUD (Head Up Display) Display Features
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."
S21210000112022-10-17. Service bulletin. FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL:SOFTWARE. Long Crank With Diagnostic Trouble Code (DTC) U0104 ? Lost Communication With Cruise Control Module, Set.

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