NHTSA Complaint #10129358 — 2004 GMC ENVOY

I OWN A 2004 GMC ENVOY,JUST PURCHASED IN JANUARY.I FEEL VERY UNSAFE DRIVING IT, FOR WHEN I TRY TO ACCELERATE IT JUST LOSES POWER FEELS LIKE ITS GONNA DIE OUT.THE RPMS ARE GOING UP AND DOWN WHEN I TRY TO ACCELERATE.IT,S GONNA END UP CAUSING ME TO GET IN A WRECK.I BROUGHT IT TO DEALERHIP LAST THURS,THEY UPDATED THE SOFTWARE IN PCM. I HAD TO PUT IT BACK IN SHOP TODAY FOR DOING THE SAME THING I FEEL AS IF THEY ARENT GONNA FIND WHATS WRONG B/C THE CHECK ENGINE LIGHT ISNT ON AND IT DOESN,T ACT UP ALL THE TIME.I REALLY FEEL THIS IS OF MAJOR CONCERN B/C I,M SEEING A LOT OF COMPLAINTS POSTED WITH THIS SAME PROBLEM IN ENVOYS AND TRAILBLAZERS.I THINK ITS TIME TIME FOR A RECALL DON,T YA,LL?