Vehicle Control Module (VCM)
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2000 GMC Yukon, 2000 GMC C3500 HD, 2000 Chevrolet Tahoe, 2000 Chevrolet Suburban, and 2000 Chevrolet Pickup. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
For removal and installation procedure and VCM programming procedure, see appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.