Thanks for the insight, I would have never thought a battery would cause that. I will buy one tomorrow and give it a try.

 

Once you do, post back and let us know if it solved your problem

 

Update:

A new battery did not change a thing.

I notice that when the tranny shifts bad it will also flash the "M" when in manual mode instead of the gear which it is in. There have been times when it drives fine then all of a sudden it goes to Shhhh. At that point I can select manual mode and see the blinking "M".

Any ideas?

 

After more research I think I'll check the solenoids.

 

Threw codes P0763 and P0715. Where is the best place to buy Part # 35230-30010 Solenoid?

 

Flashing "M" is definitely a tranny problem. Changing those solenoids are gonna be alot of larbor