V8 to 4 cyl mode

[Neal S.]

how do I turn off the V8 to 4 cyl mode on a 2008 5.3
also how do turn off the traction control for good.

[GMPX]

As simple as -
{B0921} Active Fuel Management Option, set to No

On the traction control I am not sure, that is usually not a direct ECM input, it goes via the BCM or ABS maybe.

[D-max1986]

So I need a license to shut off the active fuel management ? shut this

As simple as -
{B0921} Active Fuel Management Option, set to No

On the traction control I am not sure, that is usually not a direct ECM input, it goes via the BCM or ABS maybe.

[joecar]

So I need a license to shut off the active fuel management ? shut this

Yes.