Powertrain Control Module Reprogramming

After replacing PCM or if program needs to be updated, refer to latest Techline information on PCM reprogramming. After reprogramming, perform CRANKSHAFT POSITION SENSOR SYSTEM VARIATION LEARN PROCEDURE , RESETTING GM OIL LIFE SYSTEM , INSPECTION/MAINTENANCE COMPLETE SYSTEM SET PROCEDURE  under INSPECTION/MAINTENANCE PROCEDURES and PROGRAMMING THEFT DETERRENT SYSTEM COMPONENTS .