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Auto start stop not working

Spiffy

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With a update yesterday to sync 1049 my truck engine is not going in start stop mode. It's running all the time. At parked idle it's still running.
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HammaMan

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Battery charged up?
 

ArcaneAquaman

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You should be able to see why it isn’t stopping in the menus. I think it’s under Trip/Fuel -> Auto Stop/Start. Mine has shown low temp and vehicle charging before.
 

Mr Salami

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It's a battery issue. That happened on my 2017.
 

jhelrey

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I had a new one recently... Just got fuel. Came to a long stop light. Truck wouldn't turn off. The reason why, learning fuel type. FFS.
 

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imnuts

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If you received a PCM update, it is normal until the engine reaches temp and stays there for a short time. A 10-20 minute drive should get it back to cycling normally again.
 

Pops

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My truck has 5000 miles on it, auto start stop quit working for 2 weeks roughly and started seeing some bugs in the truck. Warranty battery replacement fixed it. mine is a 5.0 but I've read all the threads on the bugs with a low battery so the dealer looked at me like an idiot when I told them I had a bad battery. Put a meter on it if you have one before you start it for the day. Mine was holding at about 11.95volts. No bugs since battery changed.
 
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Trailrated

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Seems the auto start n stop is wonky on my brand new 23' 5.0. I don't care for it anyway, but sometimes I forget to turn it off and when I realized it, it wasn't working anyhow during my travels. Then sometimes when I stop, it works. I'm like WTF, not consistent at all.
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