Flash: Drivetrain Control Module (DTCM) Updates
Jeep technical service bulletin 08-120-21 for 2021 Jeep Grand Cherokee.
- Bulletin number
- 08-120-21
- Component
- Power train
- Summary
- Flash: Drivetrain Control Module (DTCM) Updates This bulletin involves reprogramming the DTCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code (DTC) has been set: C1463-94 - Front Axle Disconnect Control-Unexpected Operation. The customer may also experience the following:Service 4WD light illuminated. Front axle does not engage when selected.
Owners of these vehicles have filed 61 complaints in the transmission category.
Vehicles covered
- Jeep Grand Cherokee 2021 2021
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