Ford pass saying battery saver mode

[B2000]

I get that message every few months on my 23 Eco. This week I hooked up my 4 amp battery tender and it took a few hours to reach the full charge indicator on the BT. Drove it the next day and the start/stop was not working which typically means the battery has reduced voltage. Start/stop has not worked 99% of the time and I would turn it off anyway.

Never had a problem starting or driving but I think the battery manager and the amount of draw to monitor all of the functions just means the voltage is always going to be low.

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[KrS]

I'll get this when I don't drive it for a couple days. Always starts fine, even if I don't drive it for a week or longer.

It's not a problem unless you're battery goes dead and you can't start it, then something is wrong.

 

[gjallen3]

I get that message every few months on my 23 Eco. This week I hooked up my 4 amp battery tender and it took a few hours to reach the full charge indicator on the BT. Drove it the next day and the start/stop was not working which typically means the battery has reduced voltage. Start/stop has not worked 99% of the time and I would turn it off anyway.

Never had a problem starting or driving but I think the battery manager and the amount of draw to monitor all of the functions just means the voltage is always going to be low.

The Start Stop function is also disabled when it’s hot outside to keep the AC running. I’m not sure but I think anything over 95 degrees. Mine has been disabled for months here in AZ

 

[HeyBales]

I have to wonder why the app doesn’t show the level of charge or the current voltage of the battery. I know that my windshield washer fluid level is good though. Valuable information.

It only uploads data after a park - unless the remote request is for an updated location.
Fluid isn't going to change.

Since the battery will drain, it's a dropping figure - what was true after park will be less.
No need keeping the module on to keep monitoring current/voltage, or wake it up every hour to send more data up - making it drain faster.

 

[gjallen3]

It only uploads data after a park - unless the remote request is for an updated location.
Fluid isn't going to change.

Since the battery will drain, it's a dropping figure - what was true after park will be less.
No need keeping the module on to keep monitoring current/voltage, or wake it up every hour to send more data up - making it drain

It only uploads data after a park - unless the remote request is for an updated location.
Fluid isn't going to change.

Since the battery will drain, it's a dropping figure - what was true after park will be less.
No need keeping the module on to keep monitoring current/voltage, or wake it up every hour to send more data up - making it drain faster.

It only uploads data after a park - unless the remote request is for an updated location.
Fluid isn't going to change.

Since the battery will drain, it's a dropping figure - what was true after park will be less.
No need keeping the module on to keep monitoring current/voltage, or wake it up every hour to send more data up - making it drain faster.

It only uploads data after a park - unless the remote request is for an updated location.
Fluid isn't going to change.

Since the battery will drain, it's a dropping figure - what was true after park will be less.
No need keeping the module on to keep monitoring current/voltage, or wake it up every hour to send more data up - making it drain faster.

Ok I get that the Ford Servers only update data after a park but obviously they are monitoring battery voltage in order to determine if it is necessary to go into Battery Saver or Sleep Mode. Is it asking too much to be able to go into the app from time to time to see what the voltage currently is as a heads up before Ford decides to put it into Battery Saver? At the least, Ford could send a notification saying you are getting close to being put into Battery Saver so you can take action to maybe connect a charger.

 

[gjallen3]

Ok I get that the Ford Servers only update data after a park but obviously they are monitoring battery voltage in order to determine if it is necessary to go into Battery Saver or Sleep Mode. Is it asking too much to be able to go into the app from time to time to see what the voltage currently is as a heads up before Ford decides to put it into Battery Saver? At the least, Ford could send a notification saying you are getting close to being put into Battery Saver so you can take action to maybe connect a charger.

 

[Doughou78]

My ford pass keeps saying its in battery saver mode and to drive my truck to reconnect. I went and made an appointment at the dealer today and also went and got a battery check at O'Reillys. It was a little low so I went and put my trickle charger on it. Volts are now saying 12.7 when in aux 15 while running. What could be causing ford pass not to work?

I was having the same issue two weeks ago. I took it in and they ran extensive tests on the battery and determined it was defective. Got it replaced for free. Haven’t had an issue since. Knock on wood.

 

[Meeka]

I am surprised that EB owners are seeing this. I haven't yet but it's only been 6 months of ownership. Even with mine parked 8 days while I was away it never showed a sleep mode. I wonder if locking the doors helps since mine is parked outside I always lock the doors.

My Eco never did it in warm weather, just when it gets cold

 

[HeyBales]

Ok I get that the Ford Servers only update data after a park but obviously they are monitoring battery voltage in order to determine if it is necessary to go into Battery Saver or Sleep Mode. Is it asking too much to be able to go into the app from time to time to see what the voltage currently is as a heads up before Ford decides to put it into Battery Saver? At the least, Ford could send a notification saying you are getting close to being put into Battery Saver so you can take action to maybe connect a charger.

Sounds like you are thinking the notice means your battery is dead or about to be in hours.

Deep Sleep Mode means the system is disabling the modem to hopefully stop the battery from being dead, to have enough charge to start.
Battery Saver notice used to mean expect lights off sooner. They may have simplified those 2 notices.
Probably because it was confusing too many drivers - sadly that's not surprising, though opposite of your desire.

The modem is used once an hour to ping the network to keep the connection seen as active, so it can be reached remotely.
Probably at each of those times the voltage/SOC%/time unstarted is noted by waking up the BECM - and on the next ping if any reaches the cutoff, it turns into a final data upload with notice before modem disabled.

So you would prefer turn each of those hourly pings into a data upload of the voltage info?
For trucks with terrible signal and connectivity issues - you just increased the power usage, and potential for a bad loop of retries that will now actually kill your battery.

But why - again those notices don't mean battery is on the verge of dying - read thru comments, rarely is there a dead battery - vast majority it works just fine to start. Shoot many drive to dealership to have it checked out.
If you get that notice, you'll have probably months to get a charger on it. Obviously the sooner the better - but it's not an immediate required action.

Only time a dead battery is imminent is a parasitic draw, usually infrequent - but it used to be you'd see those 2 notices pretty quickly one after another as battery dropped to being drained.

So it appears they actually backed off having a notice about battery saver enabled, perhaps they indeed found that attempting to upload more data prior to Deep Sleep Mode wasn't really useful - caused more calls and from their point of view resources wasted and money spent.
Considering they don't appear to want to spend the money to fix the issue so those warnings are mostly unneeded - they aren't going to add more potential notices to confuse drivers.

 

[HeyBales]

I am surprised that EB owners are seeing this. I haven't yet but it's only been 6 months of ownership. Even with mine parked 8 days while I was away it never showed a sleep mode. I wonder if locking the doors helps since mine is parked outside I always lock the doors.

Which is interesting - because the fob lock actually arms the Anti-theft alarm system.
Which actually doesn't sound like it does much - so maybe no big whoop on power draw.
You may also have good enough AT&T signal that there isn't much fuss on the hourly pings.

At work, which has a tower on property and great 5 bar signal, I can show for the just under 7 hrs of sleep mode an avg 25-45 mA draw.
At home, which isn't great signal but easy 3 bar, I can show for probably the 10-11 hrs of sleep time an avg 50-65 mA draw.
So not huge difference, and your 14 days non-start shouldn't cause a problem.
But I've yet to see someone that runs the voltage monitoring what happens to that hourly ping if the signal was just awful or non-existent. How long before attempts are given up.

 

[Red Eyes - Wide Shut]

I live an area where there are cell towers less than a mile away. Maybe that is a plus.

ATT not the most reliable service.

 

[Flashflood140]

Well took a 350 mile trip still says modems in battery saver mode. Is there a way to reset the modem?

 

[HeyBales]

Well took a 350 mile trip still says modems in battery saver mode. Is there a way to reset the modem?

Take a multimeter reading of your voltage in the morning?
Just to confirm your OP - since you can't get an accurate reading shortly after being charged.
How long after the trickle charge did you take the reading of 12.7?

Modem doesn't say it's in battery saver anyway, so reseting that not really useful.
The truck's BMS says it's in battery saver mode - depending on how the app reports things, it may include deep sleep mode which means the modem is disconnected.
The BECM sees the battery figures, and a final notice is sent up before a system kills the request to keep the network connection up using the modem.
While it's running, can you connect remotely?
Yes - not a modem issue then.

If battery really is low because it's got a bad cell say - reset all the modules you like, that notice is going to come right back because battery is too low.

If the battery really is not low - the dealership has an SSM to do with inaccurate reporting and actions taken on a bogus Battery saver bug. Again - not a reset you can do.

 

[Flashflood140]

Take a multimeter reading of your voltage in the morning?
Just to confirm your OP - since you can't get an accurate reading shortly after being charged.
How long after the trickle charge did you take the reading of 12.7?

Modem doesn't say it's in battery saver anyway, so reseting that not really useful.
The truck's BMS says it's in battery saver mode - depending on how the app reports things, it may include deep sleep mode which means the modem is disconnected.
The BECM sees the battery figures, and a final notice is sent up before a system kills the request to keep the network connection up using the modem.
While it's running, can you connect remotely?
Yes - not a modem issue then.

If battery really is low because it's got a bad cell say - reset all the modules you like, that notice is going to come right back because battery is too low.

If the battery really is not low - the dealership has an SSM to do with inaccurate reporting and actions taken on a bogus Battery saver bug. Again - not a reset you can do.

That 12.7 was read in the trucks ET mode I also took the multi meter to it and it hasn't moved sense I charged it. I can't connect to fordpass in the infotainment system either. It just comes back as an error. Battery was tested by O'Reillys and my dealer no such its good. I drive my truck everyday it wasn't till I checked if it was in the shop that it started doing this. Whatever i see what the dealer says when I go back to get my center console pieces replaced. They'll do a bms reset hopefully there magic will work.

 

[HeyBales]

That 12.7 was read in the trucks ET mode I also took the multi meter to it and it hasn't moved sense I charged it. I can't connect to fordpass in the infotainment system either. It just comes back as an error. Battery was tested by O'Reillys and my dealer no such its good. I drive my truck everyday it wasn't till I checked if it was in the shop that it started doing this. Whatever i see what the dealer says when I go back to get my center console pieces replaced. They'll do a bms reset hopefully there magic will work.

If sure the battery is charged up - you can do the BMS reset right now at home - no need waiting to find out. Be better for them to reset some other module or settings. (BMS reset isn't a module anyway - it's just the figures dealing with your battery being set back to 0)
In your manual under replacing the battery.
Confirm it can sit overnight locked too - the next step for that - BMS Relearn.

Because another poster did have some stuck values taken from the BMS figures, that are then used to decide to send up or act on for deep sleep mode. Those figures had a stuck low SOC%, and it acted on it immediately after parking.
That's the reset the SSM gives instructions on. That's more likely the one they need to jump to for you if it's the issue.

Your account profile and such is probably messed up too - not sure how you could get a Fordpass notice of power saving - when the truck side reports it can't connect to Fordpass account.

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