Four problems related to automatic transmission torque converter have been reported for the 2009 GMC Acadia. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2009 GMC Acadia based on all problems reported for the 2009 Acadia.
The torque converter failed while driving down the highway, was left stranded on the highway in winter while in nd. The vehicle is very well maintained. Vehicle has 105,000 miles on the odometer. I have been told by a gm dealer that this is a very common problem with the Acadia.
The car began bucking and surging over time without the accelerator being pressed. The dealer stated it was not the ignition coils as I had indicated, but that it was the torque converter inside the transmission. Must replace transmission for $4800. Repair completed.
Broke down, car felt like it would not shift into second gear then just died. Dealer found a cracked wave plate, cracked clutch housing (clutches worn), cylinder excessively worn, torque converter full of metal. No sign of any computer alerts or check engine signals until break-down. Repaired all for $2820. 15. Said it would have been covered if under 100,000 miles. Sounds like planned obsolesence, or just poor manufacturing. No more american cars for me.
Transmission began slipping when I was accelerating out of turns. Dealer replaced broken motor mount and reprogrammed computer and said transmission was fine. 17 days later, 3-5 reverse clutch went out and dealer had to rebuild 3-5 reverse and 4,5,6 clutch and replace torque converter because of contamination. The car still isn't driving right but dealer states they can't find anything wrong with the vehicle. This is a very common problem with '08 and '09 Acadia's and GMC is aware of the problem but isn't don't anything to prevent failure with other owners.