2024 GT premium not starting

[Rubys650]

I have about 2400 miles on my gt premium. Just went outside to start it and it wouldn’t even crank. All the exterior and interior lights come on. The dash and infotainment system come on and are littered with warning and service lights. Tried starting it with the fob, then FordPass, and it partially cranks. I have seen other posts about this but am wondering if anyone has been able to fix it? Any ideas of what to do in the short term to get it running?

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[Dena]

If you have a battery charger, put it on the battery. It's best if you can set it for about 10 amps over night. Looks like something ran the battery down or you have a battery failure.

 

[dusman59]

Make sure its an AGM battery charger.

 

[Rubys650]

Thanks both^. That was my next thought if it didn’t get started. Car ended up starting via remote start 45 minutes later—of course after roadside was already on their way.

New question, has Ford found the source of this issue? Have seen multiple different remedies listed on other pages.

 

[JAM486HP]

Thanks both^. That was my next thought if it didn’t get started. Car ended up starting via remote start 45 minutes later—of course after roadside was already on their way.

New question, has Ford found the source of this issue? Have seen multiple different remedies listed on other pages.

It seems like the first round of production have batteries that sulfated and not fully charging. This car has pretty good draw when off I'm sure

 

[Luckybob2485]

I’m taking my car into the dealer this morning due to needing to be jump started twice in a two week period. I can provide an update after my experience getting service. 24 GT with 1,000 miles and purchased 9/30/23.

 

[Zig]

While, as others have said, most likely battery. Granted one should not need but has anyone tried a reboot when they experience this type of issue? Since it seems to have enough power to start i’m wondering if rebooting (and or disconnecting the neg line from the batt for 30 seconds) helps reduce the wait time until start.

 

[Decio]

Make sure its an AGM battery charger.

Thanks for your post dusman59. I had no idea that my 20+ yr old charger was damaging the battery. I'll buy the correct charger today! I've charged twice so far for a few hours @ 10 A.

"...voltage greater than 15 volts can overheat an AGM and generate enough pressure to pop its safety valve. That one-way valve is supposed to relieve excess pressure from the harmless gases that come when a battery’s charging. Too much voltage becomes too much pressure, and pop. Without an airtight seal, an AGM will dry out in hours. Then you’re in the market for a new AGM battery." - Interstate Batteries

 

[Upacurb]

All I know is my wifes Explorer kills batteries about once every 13-14 months- driven daily
I have had it into the dealer like 6 times trying to figure out why batteries dont last

No one can give me an answer- I know different car but I get the same symptoms when the battery gets low- warning lights exc. I have given up and now just look at replacing the battery every 12 months for $300 is normal maintenance

My wife loves the car - and I have been a Ford person all my life- but Im not happy

 

[Ford Motor Company]

I have about 2400 miles on my gt premium. Just went outside to start it and it wouldn’t even crank. All the exterior and interior lights come on. The dash and infotainment system come on and are littered with warning and service lights. Tried starting it with the fob, then FordPass, and it partially cranks. I have seen other posts about this but am wondering if anyone has been able to fix it? Any ideas of what to do in the short term to get it running?

Hey there! If you are still looking for assistance regarding your Mustang start-up concerns, I can take a closer look into this. Can you send us a PM with your VIN and the dealership name/location? To send a private message, just click on our username and select "Start Conversation".

 

[Ford Motor Company]

I’m taking my car into the dealer this morning due to needing to be jump started twice in a two week period. I can provide an update after my experience getting service. 24 GT with 1,000 miles and purchased 9/30/23.

Hi there. This start-up concern doesn’t sound like something we want you to experience with your Mustang. Can you send us a PM with your VIN & dealer name/location? I’ll see how I can assist on my end. To send a private message, just click on our username and select "Start Conversation".

 

[Luckybob2485]

Providing an update on my vehicle being taken in for service today. The dealer tested the battery in my car, and confirmed a bad battery. New battery is installed, and all appears well.

 

[Rubys650]

Providing an update on my vehicle being taken in for service today. The dealer tested the battery in my car, and confirmed a bad battery. New battery is installed, and all appears well.

Thanks for the update! Glad to hear they confirmed.

Did you have any other electrical issues? Prior to the starting issue last night I’ve noticed the Apple CarPlay flickering and occasionally a short/screech/interference through the sounds system. For example, when I turn the volume up/down or click a button while the radio is on an electrical screech comes through the speakers. This happens at least once on every drive. Alternatively, when I switch the exhaust from normal to track, I sometimes get the same sound.

 

[Luckybob2485]

Thanks for the update! Glad to hear they confirmed.

Did you have any other electrical issues? Prior to the starting issue last night I’ve noticed the Apple CarPlay flickering and occasionally a short/screech/interference through the sounds system. For example, when I turn the volume up/down or click a button while the radio is on an electrical screech comes through the speakers. This happens at least once on every drive. Alternatively, when I switch the exhaust from normal to track, I sometimes get the same sound.

I haven’t experienced any of the issues you have, but yes, I started having other weird electrical behaviors. My driver side window/lock controls weren’t consistently working. Also, whenever I raised the driver window up, it would then automatically come back down.

 

[Dena]

Thanks for your post dusman59. I had no idea that my 20+ yr old charger was damaging the battery. I'll buy the correct charger today! I've charged twice so far for a few hours @ 10 A.

"...voltage greater than 15 volts can overheat an AGM and generate enough pressure to pop its safety valve. That one-way valve is supposed to relieve excess pressure from the harmless gases that come when a battery’s charging. Too much voltage becomes too much pressure, and pop. Without an airtight seal, an AGM will dry out in hours. Then you’re in the market for a new AGM battery." - Interstate Batteries

If you charged for a few hours at 10 amp, that isn't enough to damage a battery. Granted for maximum batter life you should use the correct charge cycle but 10s amp isn't enough power to overheat the battery. It's about the same amount of heat an old style 100 watt bulb generates. That's why I suggest the 10 amp setting as a higher setting generates more heat and may not do quite as good of job reversing sulfating.
What is probably happening is your battery was near the end because it needed a charge. There are times when you leave something turned on but most of the time if a battery needs a charge the battery isn't long for this world.

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