Thanks to this forum for saving me money and saving me from wasting time at the dealership .
I got the T/M failure visit dealer message and my Leaf was freaking out when I tried to start it. While waiting for a tow to the dealership I read this topic. I had a car jump starter I got for Christmas and when I hooked it up to the battery, the car started fine.
So instead of towing to the dealer and the subsequent expense and trip to get the car back, I shopped a new battery, I got another lead acid battery, a local brand called Deka on sale for $82. I had trouble finding a matching battery until I found the Deka. The major chains kept trying to sell me a $237 Optima battery. The Deka only has 18mo warranty, I guess I’ll see how long it lasts and if it can handle the demands placed on it by the Leaf.
Thank you Forum!