I have a 2013 Odyssey LX. Just paid it off last month and now it's acting up.
For about a week, there's been a delay to start (about 2-3 seconds) when I turn the key in the ignition. Once it turns over, it's fine. No stalling.
Today it didn't start at all. I turn the key in the ignition, and few lights on the dash came on...flickered, and then faded away.
Eventually, I was able to jump it, and get it to firestone.
At Firestone they did an electrical test. Battery, Alternator, and starter all checked out OK. They couldn't even duplicate the issue. Everything started fine for them. I actually had the battery replaced last month, so I was pretty sure it wasn't that anyway.

Anyway, I feel like it's electrical, like a bad relay or something's shorted. But, I don't know enough to know how to diagnose and it's driving me crazy.

 

Do you still have the 2-3 second delay when turning the key?

 

The problem was solved yesterday.

I had originally taken it to a Firestone down the street and they had done an electrical test to rule out the starter, battery, alternator. Once they ruled out those major components they didn't know what else to do, so I paid them $25 and got my car back. I then took it to another shop, brakes Plus, and they did another electrical test. Except this time they told me I had a bad battery, which was likely because my starter was pulling way more amps (or volts...I can't remember) than it should have. But, my battery was only a month old, so the starter would kill it, but the battery was new enough to charge back up. Thus, the intermittence of the issue.

I ended up with a new starter and a new battery (warrantied), which has solved the issue. And, well done to the folks at Breaks Plus who solved the problem.