Truck not shifting at comanded rpm?

[lstruck]

I've set it to shift a 6700 rpm and it's shifting at 6000? any thoughts...tune looks right to me and log say's it's shifting early.1392813927

[gmperformancecentre]

Try changing the following D0940 , D0941 , D0942 , D0945 , D0946 and D0947 to 6700rpm

[lstruck]

We'll I just made kph match rpm shift points -2 kph and that worked for me thanks.

[lstruck]

but why do my abs light and ER brake lights come on when going wot? then rest after I restart?

[joecar]

What are the ABS DTC's...?

[lstruck]

C0237