ACDelco 85701588 Transfer Case Control Module, Programming Required

The ACDelco 85701588 is a transfer case control module (also called a transfer case control unit or 4WD control module). It is the electronic module that manages the vehicle's transfer case.

Key Features:

• Transfer case control module, sold as a single unit
• Original Equipment (OE) classification
• Programming is required after installation
• Listed by GM as a GM Genuine Parts item. Some GM Genuine Parts were formerly sold as ACDelco GM Original Equipment (OE)

This module is designed, engineered and tested to GM's standards. Because it must be programmed, plan for the programming step when you install it.