Repair Procedures

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

Engine Control Module Programming and Setup (5.3L)
Engine Control Module Replacement
Relay Replacement (Attached to Wire Harness) or Relay Replacement (Within an Electrical Center)