Auto start stop stalling engine completely
Forscan bypass this, jumper wire the button on the dash or stick a 7pin to 4 pin adapter trailer plug in your rear plug if you have. These will bypass the shutoff feature. Many threads on this on the forums. But the dealer doesn't sound like a good dealer if they are not having any concern getting it fixed.
I have a 2016 f150 with the auto start stop. When is apply the brake , the truck shuts off as it should.The problem is after about 30 seconds my dashboard lights all start flashing, my navigation screen goes into "battery saver" shutdown mode, and the truck will not start back up when i release the brake. It does this about 8/10 times. I contacted my dealership and they told me it has to be doing this when i bring it in, problem is there always backed up a few days before i can get it, so they told me they won't even touch it if it's not doing it when i arrive. Now it did it again today, and i have to parking lines on my backup camera. Like i paid 50k for a truck that's driving me insane. Any ideas? The dealership won't put in any effort....
First thing I would check is the battery. Have it tested at a local parts store. I picked my 2018 F150 up on Dec 31st and the auto start/stop stopped working around Feb, I had the battery tested and it was bad. Kept running the battery because no issues starting but I did have errors pop up if I used accessory or the 110v plug without the truck running. Finally replaced it with a Walmart H6 and everything back to normal. Good luck.
Tom
Tom
My 2018 has been doing this since I’ve had it periodically (about 3 months). It’s totally inconsistent. Sometimes it starts right up without hesitation and other times it’s sluggish during start, comes to a complete stop while cranking, then eventually starts. A couple of times, it wouldn’t start at all and indicated “shift to park and restart vehicle” Also recently tried to use remote start and it began to crank and completely stopped before turning over. I’m having the battery replaced this week even though it tested normal and hoping that will take care of the problem.
My 2018 has been doing this since I’ve had it periodically (about 3 months). It’s totally inconsistent. Sometimes it starts right up without hesitation and other times it’s sluggish during start, comes to a complete stop while cranking, then eventually starts. A couple of times, it wouldn’t start at all and indicated “shift to park and restart vehicle” Also recently tried to use remote start and it began to crank and completely stopped before turning over. I’m having the battery replaced this week even though it tested normal and hoping that will take care of the problem.
I have a new to me 2018,some days it works fine most days does not work at all. My battery is date stamped 2017 and it still checks out good but on the weak side. The truck is a Lariat loaded with a 502a package and everything else is running as it should. I do see a new battery in my near future.












