2008 GMC ACADIA Power Trainautomatic Transmission Problems

2008 ACADIA 50,000 MILES. A WHINNING NOISE FROM THE TIME I START THE CAR UNTIL THE CAR IS CUT OFF. REPAIRMAN STATED THAT THEY WERE AWARE OF THE PROBLEM AND THEY HAD NO FIX FOR IT NOW. HE TOLD ME IT WOULD BE OKAY TO DRIVE..........NOT VERY HAPPY!!!! *TR

RECENTLY, WHEN LOADING THE CARGO AREA OF MY 08 GMC ACADIA, THE VEHICLE STARTED ROLLING FORWARD (THE IGNITION WAS OFF, AND IN "PARK"). IT ROLLED APPROXIMATELY 2 FT. BEFORE "PARK" ENGAGED. (MY 2 GRANDSONS WERE PLAYING IN MY DRIVEWAY A SHORT DISTANCE AWAY). AFTER HAVING THE VEHICLE CHECKED OUT AT THE GMC DEALERSHIP WHERE IT WAS PURCHASED THE SERVICE MGR TOLD ME THAT THIS IS A "NORMAL" CONDITION, ACCEPTABLE BY GM, THAT THE PARKING GEAR "PAWL" CAN ACTUALLY ROLL UP TO 2 FT. BEFORE ENGAGING. IT DOESN'T SEEM PROBABLE, OR EVEN POSSIBLE THIS CAN BE CONSIDERED TO BE A "SAFE" CONDITION. WHEN I ASKED WHO WOULD BE RESPONSIBLE FOR INJURIES RESULTING FROM THIS SITUATION HIS RESPONSE WAS, "GM". *TR

I NOTICED THAT WHEN DRIVING ON AN EXPRESSWAY AND WOULD ATTEMPT TO PASS A SLOWER MOVING VEHICLE, AS I WOULD MOVE INTO THE PASSING LANE AND ATTEMPT TO ACCELERATE, THE CAR WOULD HESITATE FOR A FEW SECONDS, LOSE SPEED, THEN SUDDENLY DOWNSHIFT AND ACCELERATE AT AN UNEXPECTED RATE. I ALSO NOTICED THAT THE CAR WOULD UNEXPECTEDLY ACCELERATE OR DECELERATE UNDER NORMAL DRIVING CONDITIONS. I BOUGHT THE VEHICLE TO THE DEALER FOR REPAIR, THEY RESPONDED THAT THEY COULD FIND NOTHING WRONG, BUT THE WHAT I WAS EXPERIENCING WAS CHARACTERISTIC OF THE 6-SPEED TRANSMISSION ON THE VEHICLE. THE PROBLEM CONTINUED AND I FOUND IT DANGEROUS. I RETURNED THE VEHICLE AND THE DEALER'S REMEDY WAS TO "RESET THE TRANSMISSION COMPUTER." DURING THIS TIME, I ALSO NOTICED THAT THE "SERVICE STABILITRAC AND TRACTION CONTROL" WARNING WOULD COME ON. ONSTAR RECOMMENDED I SHUT OFF THE ENGINE TO RESET THE SYSTEM. I FOUND THIS ONLY HAPPENED...

MY 2008 GMC ACADIA HAS TROUBLE ACCELERATING/MERGING INTO TRAFFIC. THE TRANSMISSION, AT LEAST ACCORDING TO A GMC SERVICE WRITER, IS DUE TO GMC'S TRANSMISSION DESIGN. IT WAS INTENDED TO UPSHIFT AND EVEN SKIP GEARS, IN ORDER TO CONSERVE FUEL. I UNDERSTAND THAT THIS WAS "CORRECTED" IN LATER YEARS. THE DEALERSHIP SAYS IT IS "NOT A PROBLEM, IT IS THE WAY IT WAS DESIGNED TO OPERATE". IF THAT IS THE CASE, THEN WHY WAS IT CORRECTED IN SUBSEQUENT MODELS? ENTERING TRAFFIC IS DANGEROUS, THE TRANSMISSION "LAGS" AT ALL THE WRONG TIMES, AND ACCELERATING TO PASS, OR WHILE CHANGING LANES, PRODUCES THE SAME LAGGING EFFECT, THEREBY CAUSING MY VEHICLE TO BECOME A ROAD HAZARD! THIS IS TOTALLY UNACCEPTABLE TO ME, AND AFTER SPENDING ALMOST $30,000 ON THIS VEHICLE IN 2010, I DO NOT FEEL I ALONE, OR I WHILE DRIVING WITH MY FAMILY, SHOULD BE SUBJECTED TO THIS DANGEROUS AND HAZARDOUS SITUATION...

POWER AND POWER STEERING FAILURE- WHEN IT RAINS OR I DRIVE THROUGH PUDDLES OF WATER THE CAR LOOSES POWER AND SLOWS. ALSO WHEN I AM DRIVING THE POWER STEERING STOPS WORKING AND THERE IS A LOUD SQUEALING NOISE. I HAD THE DEALER LOOK AT MY ACADIA AND THEY SAID THEY COULD READJUST THE BELT GUARD. THIS DID NOT WORK AND THEY SAID JUST BE CAUTIOUS WHILE DRIVING. ALSO THE CRUISE CONTROL DOESN'T COAST AND THE SPEED INCREASES AS YOU GO DOWN HILL. *TR

I OWN 2008 GMC ACADIA. ON TWO OCCASIONS THE WEEKEND OF NOV 28, 2009 ONCE WHEN I WAS DRIVING, SEPARATELY WHEN WIFE DRIVING, AFTER THE CAR WAS PUT IN PARK AND THE IGNITION TURNED OFF, KEY REMOVED, THE CAR ROLLED BACKWARDS SEVERAL FEET UNTIL THE BRAKE WAS APPLIED. TOOK THE CAR TO DEALER SERVICE WHO COULD NOT REPLICATE AND EXPRESSED DISBELIEF THERE WAS AN ISSUE. SURFED WEB AND FOUND NHTSA RECALL ID# 09V073000 ON 2009 ACADIA. THE RECALL IS EXACTLY WHAT'S HAPPENING WITH MY 2008 ACADIA. JUST CALLED GM 866# AND THEY DENIED THAT THE 2009 ACADIA RECALL EXISTED. PLEASE HELP AND GET GM TO RECALL THE 2008 ACADIA'S WITH SAME ISSUE AS 2009. *TR

2008 GMC ACADIA CONSUMER WANTS TO KNOW IF IT'S NORMAL FOR A VEHICLE WITH AUTOMATIC TRANSMISSION TO ROLL BACKWARDS WHEN STOPPED ON AN INCLINE. *NJ THE CONSUMER STATED HE TOOK HIS FOOT OFF THE BRAKE AND LET THE VEHICLE ROLLS BACKWARDS. THE VEHICLE BEGAN TO PICK UP SPEED AS IT ROLLED AND VERY SHORTLY, THE ENGINE STOPPED. *JB

TURNED DOWN A ROAD AND FELT SOMETHING POP AND THEN THE TRANSMISSION WOULD NOT SHIFT OUT OF 2ND. GEAR. SINCE THEN HAVE HAD SEVERAL ISSUES WITH THE TRANSMISSION SHIFTING TO EXCESSIVELY. THAT SOME ISSUES WITH EXTREMELY EXCESSIVE SHIFTING. ONCE MY WIFE PULLED OUT INTO TRAFFIC AND THE TRANSMISSION WOULD NOT SHIFT CAUSING A MAN IN A TRUCK TO SLID OFF OF THE ROAD TO AVOID HITTING HER BECAUSE THE VEHICLE WOULD NOT SHIFT AND GO DOWN THE ROAD. AND ALSO WITH THE BATTERY DYING FOR NO REASON. THIS HAS HAPPENED 4 DIFFERENT TIMES. *TR

WE PURCHASED A NEW GMC ACADIA ON 6/16/08. SINCE OUR PURCHASE, WE HAVE EXPERIENCED A DANGEROUS TRANSMISSION ISSUE. AFTER COASTING DOWNHILL, THE VEHICLE FAILS TO DOWNSHIFT WHICH CAUSES A RAPID DECELERATION WHEN TRAVELING UPHILL. THIS RAPID LOSS OF SPEED PUTS THE DRIVER IN THE HAZARDOUS SITUATION OF A REAR END/CHAIN REACTION COLLISION ON THE ROAD GMC CLAIMS TO HAVE A FIX, BUT THIS FIX CAUSES THE DOCUMENTED GAS MILEAGE TO BE REDUCED BY AT LEAST 2-3 MILES PER GALLON. THEY HAVE ATTEMPTED TO FIX THIS ISSUE TWICE IN THE LAST 4 WEEKS TO NO AVAIL. *TR