Kind of a strange issue. 2000 Silverado 5.3
Truck was running fine no issues and I went in and did the Passlock Delete (Set to NONE and then performed a write) because like all Passlock systems it will eventually fail (also doing a remote start soon). Truck still runs no problem. The issue is after I did that the security light on the dash comes on and doesn't go back out (it was NOT on before I disabled passlock) From what I can tell the BCM controls the security light not the PCM. Anybody know how to get this freaking light to turn back off?