[fbov]

I can’t understand why the car programming isn’t se up to recharge the 12 volt battery when the vehicle is off.

Part of turning the car off "pulls the plug" on the HVB. "Starting" is really booting the HVB, and until then, it's a conventional 12v system just like every other Escape... except for the 12v drain on some.

 

[invader]

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[Tornado]

I fully agree. If the Fordpass app would have let me know that the starter battery was low on charge, I would have taken care of it before finding I couldn't start the car. I have a small battery jump starter that I am keeping handy.

When my battery died on my 2022 Escape Hybrid PEV, I received a notification via the FordPass app. I came back to the car 4 hours later and it was completely dead. Had to unlock using the key in the key fob. Waited 5 hours for Ford Roadside Assistance to arrive and jump start the car. I now keep my NOCO battery starter with me at all times. Very annoying since I have only 1,000 miles on the odometer and nothing is running off accessory power, no lights left on, car was fully off and temps were a normal 70F. (This all occurred today, 5/16/2022)
See the following image:

 

[Tornado]

Today on May 16, 2022, I parked my car on the street on a sunny 70F day. I turned off the engine, shut all the doors, shut off all lights, accessories, and locked the car. I few hours later I get a notification from my FordPass app stating my car has entered "Deep Sleep Mode". Concerned, I checked online to see what this was. I concluded the only reason this must've happened was the battery falling under 9V. This was very strange as the car was fairly new with only 1,000 miles on the odometer and no prior issues whatsoever. I have a dash cam however it is only plugged into the USB port which turns off whenever the car is powered off (confirmed with owners manual and tested myself). I have never gotten any sort of warning of the battery beginning to wear down at all and the car was driven for half an hour prior to turning it off that morning. 4 hours later I return to the car to leave work only to find nothing works. The key fob doesn't unlock the car at all, I am forced to use the manual key in the keyfob to open the drivers door. I then proceed to try and start the car. Absolutely nothing happens. Everything is dead, the stereo and dash is blank, hazard lights don't respond, absolutely anything powered by the car's battery is nonfunctional. I resort to calling Ford Roadside Assistance via the app. It takes them 5 hours to arrive. They jump start it and I am on my way. I am afraid the issue may happen again so I put my NOCO battery starter in my car. I hope the issue doesn't happen again but if it does I will post an update here. What could possibly be the issue?
FordPass Screenshots:

 

[Golluk]

I kinda agree with what someone said earlier. It seems getting the larger AGM battery is just delaying the issue of the battery being drained faster than it should, or not being charged when it should. Really should be topping up the battery and going into trickle charge anytime it's plugged in to charge the HVB.

 

[Cam-WA]

I kinda agree with what someone said earlier. It seems getting the larger AGM battery is just delaying the issue of the battery being drained faster than it should, or not being charged when it should. Really should be topping up the battery and going into trickle charge anytime it's plugged in to charge the HVB.

While my intuition tells me that this should be the case (that a larger AGM battery just delays the inevitable), the experience of folks on this forum is different. Apparently, people who have put in the larger battery find that their issue present with the smaller battery simply doesn’t recur. I don’t understand it, but hey, if it works, it works!

 

[Golluk]

For it to die that fast, it's likely you have that parasitic drain on the ABS or telematics. I'd take it in to the dealer. There is an off chance something went wrong with the DC-DC converter system that charges the 12V battery from the high voltage battery. Or the battery itself was somewhat defective from the start and just holding on. Occasionally I've seen them swap batteries on cars that just came off the line.

 

[Golluk]

While my intuition tells me that this should be the case (that a larger AGM battery just delays the inevitable), the experience of folks on this forum is different. Apparently, people who have put in the larger battery find that their issue present with the smaller battery simply doesn’t recur. I don’t understand it, but hey, if it works, it works!

I could see it being case where the system is waiting too long to top it up, and the extra time, better low capacity handling of the AGM vs lead acid meaning it holds up between charges.

I wonder how much keeping a small solar trickle charger connected will mess with things.

 

[Gryffindor101]

Today on May 16, 2022, I parked my car on the street on a sunny 70F day. I turned off the engine, shut all the doors, shut off all lights, accessories, and locked the car. I few hours later I get a notification from my FordPass app stating my car has entered "Deep Sleep Mode". Concerned, I checked online to see what this was. I concluded the only reason this must've happened was the battery falling under 9V. This was very strange as the car was fairly new with only 1,000 miles on the odometer and no prior issues whatsoever. I have a dash cam however it is only plugged into the USB port which turns off whenever the car is powered off (confirmed with owners manual and tested myself). I have never gotten any sort of warning of the battery beginning to wear down at all and the car was driven for half an hour prior to turning it off that morning. 4 hours later I return to the car to leave work only to find nothing works. The key fob doesn't unlock the car at all, I am forced to use the manual key in the keyfob to open the drivers door. I then proceed to try and start the car. Absolutely nothing happens. Everything is dead, the stereo and dash is blank, hazard lights don't respond, absolutely anything powered by the car's battery is nonfunctional. I resort to calling Ford Roadside Assistance via the app. It takes them 5 hours to arrive. They jump start it and I am on my way. I am afraid the issue may happen again so I put my NOCO battery starter in my car. I hope the issue doesn't happen again but if it does I will post an update here. What could possibly be the issue?
FordPass Screenshots:
View attachment 81482 View attachment 81481

Merged your thread with the existing thread on this issue

 

[Donskiman]

2020 Ford Escape Hybrid SE Sport. We got the system off to save battery message a few times in the past several months. Last week the battery went completely dead and we bought a jump pack to restart. After reading about putting in a larger AGM battery we wanted to do that. We took it to the dealer and they wouldn't do it.

I can replace the battery myself. Does the headlight flash/break pedal BMS reset work when changing from the original FLA battery to AGM?

We have some things installed for towing and when the dealer service saw them, they blamed them for the problem. The car has also had the kind of clicking noises others have described when it's just sitting in the garage.

I'd prefer to not have to go back to the dealer since I think they're jacking me around. I wanted to pay for the larger battery, but they wouldn't do it.

If the DIY headlight flash/break pedal method doesn't work for this, what are the options?

 

[invader]

2020 Ford Escape Hybrid SE Sport. We got the system off to save battery message a few times in the past several months. Last week the battery went completely dead and we bought a jump pack to restart. After reading about putting in a larger AGM battery we wanted to do that. We took it to the dealer and they wouldn't do it.

I can replace the battery myself. Does the headlight flash/break pedal BMS reset work when changing from the original FLA battery to AGM?

We have some things installed for towing and when the dealer service saw them, they blamed them for the problem. The car has also had the kind of clicking noises others have described when it's just sitting in the garage.

I'd prefer to not have to go back to the dealer since I think they're jacking me around. I wanted to pay for the larger battery, but they wouldn't do it.

If the DIY headlight flash/break pedal method doesn't work for this, what are the options?

It should work. Wait up to 30 seconds for BMS reset lamp flashing... Those who subsequently checked with FORScan confirmed the reset was performed by the specific "Days In Service".

1. Ignition ON, Engine OFF
2. Activate the headlight flasher 5 times.
3. Fully depress the brake pedal 3 times.
4. If the battery charge indicator lamp in the instrument cluster flashes 3 times in 15 seconds, then the reset was successful.

 

[Northlakes1]

A friend of mine has a Volvo XC60 Hybrid that did the exact same thing.

I would call your local Ford dealer..

My 2020 Ti full hybrid started giving Deep Sleep messages in winter. If I got in the car, it gave me about a minute to start the car before it went to sleep. I could manually open the hood to jump start, but that was it. All of the in-car electronics use 12 volts, including door locks, relays to connect the high voltage batteries, and parking brake, etc.

I ultimately replaced the small original lead-acid 12V battery with a Motorcraft group 48 AGM battery (which I believe came with the 2021 versions). The hole for clamping down the larger battery was already there and the bigger 12V battery fits under the spare tire just fine. Have not seen a deep sleep message since.

 

[Northlakes1]

2020 Ford Escape Hybrid SE Sport. We got the system off to save battery message a few times in the past several months. Last week the battery went completely dead and we bought a jump pack to restart. After reading about putting in a larger AGM battery we wanted to do that. We took it to the dealer and they wouldn't do it.

I can replace the battery myself. Does the headlight flash/break pedal BMS reset work when changing from the original FLA battery to AGM?

We have some things installed for towing and when the dealer service saw them, they blamed them for the problem. The car has also had the kind of clicking noises others have described when it's just sitting in the garage.

I'd prefer to not have to go back to the dealer since I think they're jacking me around. I wanted to pay for the larger battery, but they wouldn't do it.

If the DIY headlight flash/break pedal method doesn't work for this, what are the options?

Deep in the owner’s manual, it says after replacing the battery, turn off all accessories and lock the doors for at least 8 hours, and the BMS should be properly reset. Worked for me. Did my battery swap six months ago.

 

[wiz043]

Deep in the owner’s manual, it says after replacing the battery, turn off all accessories and lock the doors for at least 8 hours, and the BMS should be properly reset. Worked for me. Did my battery swap six months ago.

Sorry but that does not reset the BMS otherwise you would be resetting the BMS every night after locking the car.
What that 8 hour rest period does in simple terms is 'advise' the new battery of the current technology and state of charge.
The battery days in service will not revert back to zero thus resetting the BMS as that can only really be done successfully by a dealer or with Forscan. Your battery may be functioning fine if only replaced 6 months ago but if the BMS is not reset there could come a time when strange things happen with some features due to the system still thinking it is dealing with the old battery.
Some claim to have success with BMS reset methods involving brake pedal, headlight flashing or pressing rear fog light button and then hazard lights whilst closing their left eye and mumbling magic words etc. and there are videos on this but it appears to be unclear if that really works unless you then check the battery service days with Forscan.

 

[invader]

It should work. Wait up to 30 seconds for BMS reset lamp flashing... Those who subsequently checked with FORScan confirmed the reset was performed by relating to the specific "Days In Service" displayed.

1. Ignition ON, Engine OFF
2. Activate the headlight flasher 5 times.
3. Fully depress the brake pedal 3 times.
4. If the battery charge indicator lamp in the instrument cluster flashes 3 times in 15 seconds, then the reset was successful.

 

[Northlakes1]

Sorry but that does not reset the BMS otherwise you would be resetting the BMS every night after locking the car.
What that 8 hour rest period does in simple terms is 'advise' the new battery of the current technology.
The battery days in service will not revert back to zero thus resetting the BMS as that can only really be done successfully by a dealer or with Forscan. Your battery may be functioning fine if only replaced 6 months ago but if the BMS is not reset there could come a time when strange things happen with some features due to the system still thinking it is dealing with the old battery.
Some claim to have success with BMS reset methods involving brake pedal, headlight flashing or pressing rear fog light button and then hazard lights whilst closing their left eye and mumbling magic words etc. and there are videos on this but it appears to be unclear if that really works unless you then check the battery service days with Forscan.

It is important to remember that when changing a battery, the voltage across the BMS goes to zero. Once reconnected to the battery, it has voltage again. If you subsequently shutoff your Escspe every night sfter that, the BMS will still have voltage and not reset the same as that first reconnection. The owners manual recommends the procedure for the 2020s.

 

[wiz043]

It is important to remember that when changing a battery, the voltage across the BMS goes to zero. Once reconnected to the battery, it has voltage again. If you subsequently shutoff your Escspe every night sfter that, the BMS will still have voltage and not reset the same as that first reconnection. The owners manual recommends the procedure for the 2020s.

As I suggested earlier you are talking about 2 different things....'voltage' and 'days in service'. The article below states that after a battery change the car should be left locked for 8 hours to relearn the battery state of charge etc as you indicated.
However that does not reset the days of service of the new battery back to zero. As explained further down in the link the BMS needs to be reset with a scan tool or possibly by one of the other 2 methods explained depending on model year but I am unsure whether those methods work with the 2020+ models as stated earlier.
Ford Escape owners manuals that I have perused online make no mention of resetting the battery BMS with a scan tool or whatever for some reason. Some only mention the 8 hour 'rest' period when replacing the battery but Ford dealerships normally are aware of what is required and reset the BMS when installing the battery.
If you scroll to 'Ford service' it explains exactly what I was talking about in my previous post #174.

Ford Battery Management System

Non-functional Auto Start-Stop system on a 2017 F-150 led me to discover the Battery Management System.

moundalexis.com

This relates to a different Ford but the BMS/BCM systems operate the same.

 

[Jaxpony]

Yep.... I've gotten the message on the FordPass app "Your vehicle is in Deep Sleep mode...." and when I get in the vehicle this message is on the screen "System Off to Save Battery Please Turn ignition off or start engine." The vehicle has always started (not had a dead battery...yet). For those of you that've been to the dealer with this issue...what did the dealer do to resolve the issue?

Hello, the dealer just resets/ updates the communication module. I had the car in the shop last Monday and picked it up Wednesday and it went into deep sleep mode Wednesday morning. I had driving my car over 100 miles on Sunday. The reset the communication module on 7/25 when I had it in the shop. There is TSB regarding this but the resolution on it is resetting/updating the communications module. I am frustrated with this. They need a bigger battery and once I can $$ it , since the dealer will not replace it, I will end up buying the one I have seen on this forum to replace it.

 

[invader]

Hello, the dealer just resets/ updates the communication module. I had the car in the shop last Monday and picked it up Wednesday and it went into deep sleep mode Wednesday morning. I had driving my car over 100 miles on Sunday. The reset the communication module on 7/25 when I had it in the shop. There is TSB regarding this but the resolution on it is resetting/updating the communications module. I am frustrated with this. They need a bigger battery and once I can $$ it , since the dealer will not replace it, I will end up buying the one I have seen on this forum to replace it.

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[Jaxpony]

ACDELCO 48AGM Gold / Professional; AGM; BCI Group 48; CCA 760; 120 Reserve Capacity $167.79
View attachment 81853


FVP P48AGM Platinum AGM; BCI Group 48; CCA 760; 140 Reserve Capacity $184.79 View attachment 81855
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Thanks for the info