Remote Features Disabled Question

[PaulGrun]

Someone correct me if I’m wrong, but I am under the impression that a BMS reset is only used to tell the BMS that a new battery has been installed. The BMS uses that to calculate the age of the battery, which is an input in how the BMS calculates the current State of Charge (SOC). Keep in mind that SOC is a calculated (derived) value based on a number of internal tables including things like resting voltage, battery age, and probably a whole bunch of other factors. As I understand it, it only re-calculates the SOC after a prolonged ‘rest period’ (I.e. overnight) because that’s how long it takes the resting voltage to settle out. In between re-calculations, the system attempts to estimate the current SOC on the fly.

Anyway, that’s my (completely uninformed) perception of how this thing works.

If that’s true, just willynilly doing a BMS reset in the hopes of correcting (some seemingly aberrant) battery behavior does not seem like a good idea - depending on how old the battery is when a BMS reset is done, it’s possible to imagine that the system is calculating SOC incorrectly.

Also, if true, then the NAPA guy is right - a BMS reset is required on installation of a new battery.
Someone please correct me if I’ve got that wrong.

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[2Lazy2P]

PaulGrun, it's not willynilly when going through the gremlin diagnosis tree. I share your concern for the unintended consequence; these are complex machines with interrelated activities.

For instance, disconnecting the negative on the 12V battery (in order to reset some function of the vehicle) may create a different problem. The Battery Monitoring System (BMS) keeps track of your 12V battery status and lets the BMS know when the battery is fully charged. Disconnecting the 12V battery can screw up the learned values in the BMS and, as you observed, there may be unintended consequences such as your 12V battery may not fully charge after that.

However, the fix for this issue is simple and techs are told to do this every time they replace a battery or FDRS indicates the battery state-of-charge (SOC) is too low. It can be done in FDRS or with this simple routine before the next time you drive. In my case, it made sense to try it as the dealer is scheduling appointments 4+ weeks out.

1. Press the start button without stepping on the brake (Accessory mode).
2. Within 10 seconds, flash the high beams with the stalk 5 times, and then step on the brake pedal 3 times.
3. Check the red battery icon on the instrument panel to see that it flashes three times.
4. Once you see the red battery icon flash 3 times press the start button to turn the truck off.

Afterwards, the 12V battery should then fully recharge when you drive. If I continue to receive the Remote Features Disabled message I'll bring it into the dealer.

 

[Snakebitten]

"Fully Recharge" is a contextual statement when referring to the Gen14 F150.

Or put another way,

Fully Recharge means something very different when you put the battery on an external charger VS fully recharge with an alternator or Powerboost DC-DC Converter.

 

[Aim64]

As some have observed previously, Ford Pass remote features functionality is being impacted by a bad battery. In my case, I’ve been getting the message several times each month. Before I set a service appointment with the dealer is there a simple test that I can use to verify whether the battery is the cause?

Thanks.

I had the same issue , battery was replaced, issue resolved

 

[fordtruckman2003]

Looking closer at battery in my truck it has sticker that is covered by the hold down strap.

"Not for AGM or Auto Start/Stop use."

I disabled the Auto Stop first week owning truck but apparently it isn't an AGM battery as I thought. Could be why truck is getting confused. ?‍

 

[fordtruckman2003]

Drove last night on short trips and never saw the message again. ?

 

[22skidoo]

I too have been plagued with the dreaded "Remote Features Disabled" on my phone app as well as the screen in the truck saying "12V Battery State of Charge Low" for several months now. Been getting the message since I purchased the new truck in May. I drive daily, sometimes 100's of miles and get the messages 15 minutes after I turn off the truck. Three trips to the dealer with no fix. The dealer says battery tests good so they refuse to replace it and can't answer why I get the messages. So I have no remote (FordPass app) functions.


Did some digging and found this web page under Ford Support:

https://www.ford.com/support/how-to...y-vehicle-is-in-deep-sleep-mode-when-it-isnt/

We are aware that some Members might see a banner message in the app advising your vehicle is in Deep Sleep Mode when using the FordPass App, even though it does not meet traditional deep sleep conditions. Your remote commands are inoperable when this happens.

Performing a key cycle (turning the vehicle on and then back off again) will restore the functionality of the remote commands; however, the symptom may recur when attempting to use them again.

Our engineering team is working on a fix for this issue that will be released via a future Software Update.

Please make sure you have the latest version of the FordPass App and where applicable, you have Software Updates enabled so that you get notified when the fix is available.

From another page:
Deep Sleep mode is designed to conserve battery power on your vehicle. This setting is activated when your vehicle falls under the following conditions:

• Vehicle inactivity for 14 consecutive days
• The battery voltage drops below 9.5 volts
• Extremely cold/hot weather conditions

 

[Snakebitten]

9.5 Volts ?

Some of these trucks turn from Jekyll to Hyde far before the static voltage drops into the 9's

 

[Grafx36510]

9.5 Volts ?

Some of these trucks turn from Jekyll to Hyde far before the static voltage drops into the 9's

Yep. Mine was at 41% this morning. Not remote start, no approach lighting, chimes through the cluster, the works. See screenshots. First was last night and The second was this morning. Although I will say that it appears to pump the charge current up when it’s that low.

 

[powerboatr]

i got the dreaded message at a little after 2 am this morning...yes i was not fully asleep ,
silly me.. i have not driven or opened said truck since weds and i guess it felt unloved
so this morning during normal hours i put charger on..it was at 60% on the schumacher charger display

my charge stuff in truck is set to 95% in forscan, i have no idea if it ever gets there.
my trip weds was short...less than 12 miles so i am sure it never had a chance to charge up

 

[fordtruckman2003]

Weird stuff going on.
My FordPass for a short time said to drive to get out of battery saver mode. Then it updated location and everything as normal.

It is less than 20 degrees this morning so that probably doesn't help.

 

[beefynutz]

Ya. Mine just went into this battery saver mode yesterday morning. Cold probably doesn't help. Morning was 24F. And still today in same mode. But now I'm also getting popping sounds from the radio so I turned it off. Cool. I guess I'll be driving it around a little bit more than normal today and putting it on the battery charger overnight to see if that helps.

 

[fordtruckman2003]

Leaving work truck giving me the middle finger refusing to start with FordPass. Remote worked fine but not help from office upstairs.

I'll see how it goes but looking like it might be needing replaced with bigger option.

 

[22skidoo]

Fourth time is a charm. Hopefully. Took my truck to the dealer today for the 12v SoC errors. After 2 hours of diags they told me that the battery failed the tests. Previous service visits the battery passed the tests. They put in a new battery and found the BMS failed. They are keeping the truck overnight to charge the new battery and get the BMS installed tomorrow. Hope this solves the issues.

 

[beefynutz]

Update on mine... I didn't put the charger on it but I did drive around more on Wednesday and when I got home the truck shut off normally. (not in power save mode). Since then it's been ok.

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