ReFlash

[dc.snowball]

what i have been tyold...all 2011 produced after sept..were automatically updated to the higher hp/torque. mine was produced in aug. and was flashed at the dealership in the later fall. i bought in the winter....had a glitch and they re-ran the computer update again... this last re-flash did make a diff. in performance... any dealership can run the vin & see if it was up-dated.

 

[gmcretz]

Reflashed last week, the tranny was shifting kind of funky between 2 & 3. Called the dealer and they reflashed the PCM & Tranny, WOW!