how to reset passlock

Asked by Nov 05, 2016 at 09:01 PM about the 2006 GMC Sierra 1500 SLE1 Extended Cab 4WD 6.5 ft. SB

Question type: Maintenance & Repair

unhooked battery,changed starter,hooked battery back up. Engine will turn
over but not start.

1 Answer

78,375

Lock all the doors manually except the drivers door, close and lock it with the key, wait at least 30 seconds then unlock the drivers door with the key, that should disarm the system, but there is another problem that may also happen to you, once the power supply is removed from the BCM it may loose memory of all your accessories, so nothing works even if you are able to start the engine, if that has happened the only cure is to have the dealer reflash the system to match the vehicles Vin. There is a little tool called a preset or code saver that needs to be installed before the battery is disconnected. HTH

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