Did you need to update anything after installing the battery or did it just work correctly after upgrading the battery? I have heard you might need to either update the system software through a dealer or someone who can plug the right software into the car to show the AGM battery. Or I have also heard you need to update the battery system with flashing the brights 5 times and pumping the brakes 3 ti

 

I did nothing special. It is just a 12V battery with a larger capacity. I simply disconnected the old battery, removed the hold down clamp, removed the old battery, installed the new battery, rotated the hold-down clamp 180 degrees and installed it, then connected the new battery., All my issues disappeared, and have not returned. I may have been lucky in my ignorance, but that is all it took.

Good luck!

 

Thank you Ford Since 78! I just purchased the car used a couple of days ago from a dealership and I'm already having this issue. I'm going to have them run a diagnostic on it to see if they find any issues, but I think after reading about everyone's battery issue and how it's a common problem, I think I will most likely upgrade the battery for some piece of mind. It's good to hear that you didn't have to do anything special after changing the battery out. I've read so many mixed things about having to do special things after upgrading the battery, but none of those comments were from someone who actually did the upgrade themselves.

 

Currently on my third “extended stay” at the dealership in 18 months for these issues (2020 Titanium Hybrid). They’ve replaced the battery, reset multiple modules, updated and reinstalled SYNC, etc. just got a text from my service guy. Says it’s a faulty purge valve and accompanying module (s). APEX (extended warranty vendor) is sending over their own inspector to evaluate all the issues. Of course I made my final payment last month.

 

I just had my first incident with this. Bought the 2020 Titanium Hybrid in 2021 (new), had other issues with it (long story), but had been working fine for past 2 years. Parked it one night in the garage, next morning: dead. Got it to the dealer and they initially said it was an old battery (I've never had a car battery go dead in less than 8+ years). Anyway, they said it was draining 40% in a 24 hours period so they did a bunch of module/software updates and with the new battery it now is draining *only* 14% over 24 hours period so their recommendation was to make sure I drive it every 2-3 days. Needless to say, I called BS on that. It worked fine for 3 years (battery-wise) so why with a new battery do I have to do this? I think they just don't know or don't want to admit a systemic fault that they would have to fix under recall.

Additional info: I've gone on vacation a number of times where I parked the car either in my garage or at a long-term airport parking (in the dead of winter) for 2+ weeks and it started just fine when I returned.

I'm interested to hear a definitive solution from anyone.

 

I don't know about any definitive solution, but,,,,,,,,,,,,,,,,,,

There can be multiple causes for batteries to lose their charge overnight.
Some of them are, ;after a vehicle is shut down, the modules are supposed to go into sleep mode and stop draining from the battery. That usually takes about 45 minutes.
If the remote is not far enough away from the vehicle, the modules don't go into sleep mode. Where is yours when you park the vehicle for the night?

 

My fobs are probably about 40-50 ft away inside the house. But, as I kept telling the Ford dealership folks: why is it an issue now instead of 2-3 years ago? The only thing that has changed is software updates... so why would I be 'on the hook' for repairs to something Ford changed? I'm going to keep pushing this with the dealership and perhaps open a ticket with Ford directly.

 

Could you be overlooking that some components wear/ malfunction and not necessarily be the dealers fault ?

 

Something to check,
If your remote works 40-50 ft away from your vehicle , it still can prevent the modules from going into sleep mode..

When the modules are active, the system assumes you are going to start the vehicle and it keeps fuel pressure up among a few other things we never give thought to.

 

Update: I managed to not drive the vehicle for a complete week. Left it in the garage as if I was away for the week, key fob where I normally leave it, etc. After a week, it started fine. So, if, according to Ford, it was draining 14% per day, it should have been completely dead after 7 days. I don't know what they guys at Ford are talking about.