Certainly speaking, suede jacket cleaning in the washing machine is not a problem at all. People have a notion that suede may get warn off, on being washed in the machine. But, it is not completely true. All you have to do is use mild detergents or conditioner or a garment softener in the machine. Along with this, it is necessary to set the machine on cold wash and not hot wash in any way.
Not to forget that you should take out the suede garment immediately after wash. Do not keep it longer in the machine after the suede jacket cleaning process completes. After taking out the garment, you should roll in a dry towel and hang it in sunlight for a while. Then, out on the garment, even if it is wet. This will adjust or stretch the garment to your body size. Repeat this process 2 to 3 times for adjusting the shape.