Silverado Classic 3500 4WD V8-6.6L DSL Turbo (2007)
Transmission Mode Switch: Service and Repair
Transmission Internal Mode Switch Replacement
Important:
The Internal Mode Switch (IMS) is mounted to the manual shift shaft detent lever as an assembly. The components of the detent lever/IMS assembly
cannot be individually serviced. When the IMS needs replacing, the entire assembly must be replaced.
Replace the IMS. Refer to Manual Shift Shaft, Detent Lever, and Position Switch Assembly Replacement.