The 'target' SOC - State of Charge - is set too low. It can be set higher with a change internal to the ECM. Watch YT vids on the Ford Smart Charge system and you will understand.
tom
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I just got a call from my service rep and he said the technician believes my Ford dash cam is causing the problem! I told my service rep how can my Ford dash cam drain the battery after driving 3 1/2 hour on the highway and get the error message within 1/2 hour? He just said he was just relaying what the tech said. I told him I was comfortable with that answer. They will disconnect my dash cam and keep it over night.
I swear, how can a dash cam drain a battery? If I’m wrong please tell me and give me a good reason why it’s the dash cam! And I’ll check out that YouTube Grump!
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They are WRONG but use any excuse.
I put on 3 LED marker lamps (like 1 watt each) that are directly wired to the parking lamps. So only on when parking lights are on.
Dealer told me my tiny LED marker lamps that are always off when the parking lights are off (ya know, because they are on the same F'n wire!) was the root cause of my battery always being 12.1 and never 12.6 volts.
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This is an interesting topic without a definite solution, at least so far. I have only had my Mav since June and generally do not keep the Ford Pass app active while I try to sort out battery life issues with my phone, but this caught my eye. I had never seen the deep sleep message before during the few times I had signed into the Ford Pass, but I did this morning after signing in. It indicated it went to sleep three days prior, which was Friday, and right after I had driven fifty miles to my cottage and parked it? Makes no sense. I checked battery voltage at the studs under the hood and read 12.03 volts. This was after sitting for three days, supposedly asleep. I connected my NOCO battery tender and the voltage slowly crept upwards reaching 12.42 within 3.5hrs and I prepared to return home. I just drove the fifty miles home, immediately checked the voltage at the studs and found 12.14v. It actually lost voltage on the way home, almost exclusively highway miles. Conditions were bright sun, 64*F so no headlights, heated seats, wheel or A/C. My assumption at this point is the system does not charge the 12v battery to the same level as I have come to expect from all the other vehicles I have owned. 12.03v and 12.14v is not fully charged, at least not in conventional terms. By design??
is it wired to an ACC fuse that shuts off with the ignition? Or constant 12v with a Parking mode enabled?
When I wired my Kicker Hideaway to speaker line remote power it was coming on and off randomly with the infotainment system, as well as when any doors opened, and started causing deep sleep issues. Wired it to an Acc fuse and it stopped.
That said, it's likely the stock battery. When I changed mine with a Duralast, dealer wouldn't replace it, the Deep issues stopped.
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My bet is the tech has no clue, did not do a current draw test, saw the camera was using a few milliamps, and came to the conclusion that was the cause. Easy fix, tell the customer to disconnect a Ford approved accessory...
The voltage SOC desired is set using parameters from FoMoCo. They have apparently set it such that an alternator is mostly sleeping rather than bringing the battery to full SOC, 12.76-ish Volts.
They run them lower so the mpg is better as the alternator just keeps up with current consumption and barely charges the battery, surely not to full voltage.
The A-SS system depends on the battery voltage being above a set voltage. If the battery is close, or below, it will disable A-SS. I drove from ATL to TPA, interstate, and the A-SS worked one time while visiting, then quit. Drove back to ATL, and the same thing. The charging system was loafing, as it had reached the 'smart system set point', and would just reduce field current to lower alternator output. One of the parameters that can be set using ForSCAN and an OBD-II adapter will set the desired SOC to a higher number, and the battery will have higher resting voltage to use up before it considers the voltage too low and goes into a 'sleep state'.
OTOH, I fully charged the battery on 10/18, took a trip to FL, and on Sunday I got the message the system was going to sleep due to low voltage... 5 days. Fully charged to needing a nap to preserve voltage. When I got home, the voltage was 12.42 measured using a Fluke DVOM.
Something is amiss...
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This is the Ford dash cam that came with a wiring harness that plugs in the OBD II Plug-n-Play which is why I purchased this so that I didn't have to splice into any other power source. The battery was already replaced at the dealership. I really don't want to purchase a battery on my dime.
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I think the service rep did tell me the tech did test to see what is drawing from my battery and said it was from my Ford dash cam. They still have it as of now and looking at my FordPass app it's telling me it's in battery saver mode. Not sure if they have disconnected the Ford dash cam yet.
Did they do the latest emissions recall 23E09, that "may" include battery energy control updates according to this posts screenshot receipt.
https://www.mavericktruckclub.com/forum/threads/get-your-software-updates-done.39087/post-700479
This is really nothing new. My 2022 hybrid does the same thing no matter how far it's been driven. The Ford Pass message is a bit different . . . mine telling me features are not available and ya, the interior lights fail to come on when I open the door to drive. Oddly enough, they do come on after turning off the engine.
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I don’t know if the applied the latest emissions recall notice but I will call them tomorrow to make sure they applied all the recall notices.
After telling them I didn’t believe my Ford dash cam was causing the problem yesterday, I told them to unplug the Ford dash cam and look at it again the next morning. They must have unplugged my Ford dash cam b/c I didn’t receive a phone call from them telling me to pickup my Maverick. I’ll keep this thread updated once I hear back from them.
Just FYI check the settings on your camera, my camera was draining my battery because the settings were set for motion detection and if parked in front of oh say a tree that sways in the wind, my camera was constantly recording because it detected motion. I turned that off and hooked my truck up to a battery charger and it helped but didn't solve the issue completely. My start/stop worked right after being charged but has since stopped working again and if I don't drive it for more the 2 days I get the error again.
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I must trickle charge my battery weekly to not get the message. Seems like driving a bunch of miles has no long term affect. Still have the problem in a week. When it was new and the message popped up I ignored it. Got to the point the Lariat Hybrid door handle touch lock/unlock feature would not work. Took it to the dealer and they updated the software but did not solve the problem. I am retired and only drive long distances occasionally. Neighbor has a Honda that behaves the same way. I chalk it up to lots of stuff running in the background even when shut off. I tried locking at night to force things to shut down but no sucess there either. I wish someone would find a solution. Perhaps there is a feature that can be disabled......
It's the 12v. Battery. Had the same problem. Instead of getting a replacement from the dealership went and got a diehard from advanced auto. Fixed the problem
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