GM Passkey 3 & Passlock 2 Data Override
Passkey 3 & Passlock 2 Data Bus Interface; NKR- No Key Required
(GMBP retired & replaced by GMDLBP)- GMBP is a GM Data Bus Interface: Data override of GM Passkey 3 Transponder Immobilizer & GM Passlock 2 Immobilizer via class 2 data bus. No Key Required. The GMBP is a "3 in 1" bypass solution which is compatible with the 1st generation GM Passkey used on the '99 Transport, Venture & Silhouette and the more common 2nd gen. Passkey 3 as well as the Passlock II resistor code immobilizer.