2013 Yaris LE was completely powerless...

[mrdgzpm]

I have a 2013 LE 4 door and today I got in to start it up and it was completely dead as far as power. No headlights, accessory lights, interior light, radio, nothing at all. While I was on the phone with AAA all power came on and was able to start like nothing ever happened. The battery (interstate) is 3 months old. Any thoughts?

[Exiwolfman]

Check that both battery terminals are tight almost sounds like the main fuse the 120 is going... Located on the positive side terminal, will show 120 and 60.

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[dogsridewith]

tight and clean. And, 91 Corollas had a plastic washer under the battery cable connector with a flange that stopped the pinch clamp from pinching enough. Bad idea that needed removed.

"Clean":To varying degrees, a non-conductive crust layer forms between battery terminal and connector. Needs sanded, scraped and/or wire brushed. (There's a little round tapered tool that brushes both sides of the joint.)