I am new to this forum only had my crossfire for 5 months. I have read several post on blower moter speed problmes and mine seems to be a mix of everything. Hope someone can help with suggestions. Sometimes it runs fine then it may not go over a speed setting of 2 or it might run at only a speed 2. Sometimes it will run when truned off but the light on the AC button will not come on. Other times you can turn it to a speed higher than 2 and within few seconds it will slowly speed up to that setting. Took the car to the dealer and no codes from the computer. They suggested changing the BCM to start with. Not into letting someone just swap part till they find the right one. Also sometimes I can hear a low hiss comming from the center vent. With the defrost on it seem the passangers side gets more air flow than the drivers side to the windsheld.