GM TECH2 Fix Hummer H3-H2 Mileage Does Not Count After BCM was Change

How To Setup A Bcm On 2008 Hummer H3-H2 The Milage Is Not Counting After The BCM Was Changed
after a customer changed the bcm the milage never count again
the reason was the bcm was programmed ok but the configuration was not done
using a gm tech2 scanner I was able to do the setup and everything work