tomhl

I have a 2010 GMC sierra 1500 5.3L 4x4. When I turn off the ignition switch the vehicle stays running even with the door open. All the dash components are off and you can not put it in drive. The backup lights are on with ignition off. I disconnected the negative cable to the battery, still will not shut off. Disconnected the positive cable to the battery and still won't shut off. Pulled the EMC battery fuse (10A), vehicle shut off. Help ! Any help is appreciated, tomhl