Verify if there are any active TSBs for your vehicle, GM may have a fix that they will pay for but the dealer "forgets" to mention. With all of the complexities of computer controls on modern vehicles, rarely are blown fuses at fault. If there is an internal sensor or solenoid that has failed, sometimes this requires a transmission overhaul and thems are high dollar. A quick internet search shows that transmission problems for the Acadia are common, but satisfaction may not be as common... good luck and happy motoring