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Service bulletins for the 2026 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.

274 on file from NHTSA, as of 2026-10-19.

About C14A1 on the 2026 Jeep Grand Cherokee: what the code means, and the bulletins and recalls about the same components.

By type

By component

By trouble code

Only bulletins with trouble code: C14A1 are shown. Show all

Bulletins, newest first
08-073-262026-03-05. Service bulletin. ELECTRICAL SYSTEM. Drivetrain Control Module (DTCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set the following Diagnostic Trouble Code (DTC): ● C14A1-74 - Unintended Actuator Shaft Movement Detected-actuator Slipping. Customers may comment on the following: ● The service 4WD light is on in the Instrument Panel Cluster (IPC). This bulletin involves inspecting and possibly reprogramming the DTCM with the latest available software.
08-061-262026-02-19. Service bulletin. ELECTRICAL SYSTEM. Flash: Drivetrain Control Module (DTCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set the following Diagnostic Trouble Code (DTC): ● C14A1-74 - Unintended Actuator Shaft Movement Detected-actuator Slipping. Customers may comment on the following: ● The service 4WD light is on in the Instrument Panel Cluster (IPC). This bulletin involves inspecting and possibly reprogramming the DTCM with the latest available software.
S25210000062025-12-11. Service bulletin. ELECTRICAL SYSTEM. Service 4WD light on in the cluster. C14A1-74 DTC will be present (Active or Stored).

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