GMC TSB #PIP-4668

2009 GMC Acadia

You can still get the detailed info from GMC for this TSB. Call your local GMC dealer's service department & ask for a copy of TSB# PIP-4668.

Summary: SATURN/GMC/CHEVROLET/BUICK: HESITATION WHEN ACCELERATING DURING A RIGHT HAND TURN AROUND 15MPH; HESITATION/DELAY/HARSH SHIFT AROUND 40MPH DURING 5-3-2 SHIFT. THIS WAS IMPROVED FOR FEEL, BUT ALSO FOR BEING TOO AVAILABLE; ALSO RELATES TO LOWER AND HIGHER SPEEDS TOO; LOW SPEED HESITATION DURING A 2-3 SHIFT ON LIGHT ACCEL AFTER LAUNCH; CRUISE CONTROL BUSYNESS AROUND 50MPH AND/OR POOR SHIFT FEEL; DELAYED UP SHIFT AFTER A FORCED THROTTLE DOWNSHIFT AFTER RETURNING TO NORMAL THROTTLE; NONLINEAR DECEL FEEL AND/OR TACHOMETER SWING ON 5-4 COAST DOWN SHIFT AS A RESULT OF ENTERING AND EXITING DECEL FUEL CUT OFF (DFCO). *PE