- May 28: Automatic Emergency Braking Standard by September 2029 news | 5 days ago
- May 1: Jeep Cherokees Recalled For Turn Signal Problems recalls | 32 days ago
- March 26: Chrysler, Jeep and Ram Vehicles Recalled For Airbag Failures recalls | 68 days ago
- March 13: Jeep Wrangler 4xe Recall, Then a Class Action Lawsuit news | 81 days ago
Jeep TSB #21-022-14
2007 Jeep Grand Cherokee
TSB Document:
Affected Component: EQUIPMENT
- Summary
- 4WD Lamp Illuminated and Diagnostic Trouble Code C140F Active in Final Drive Control Modules (FDCM) Memory This bulletin involves verifying FDCM software level and then flash reprogramming of the FDCM with new software. Customers may indicate that the ?Service 4WD? indicator in the instrument cluster is illuminated. They may also indicate that the transfer case will not shift from 4WD High, 4WD Low, and/or Neutral once the lamp is illuminated. Further investigation identifies that a Diagnostic Trouble Code C140F is stored or active in the Final Drive Control Modules (FDCM) Memory
Click a tab for more information.