2023 Hybrid 2 months old - recently going to "Deep Sleep" Mode

[MakinDoForNow]

The clicking sounds are normal for a Maverick. It is part of what causes the power drain, the app also being a cause.

This type of problem is not unique to Mavericks or even hybrids in general. A few years ago my neighbor bought a brand new non-hybrid loaded Ford SUV. It was the highest trim level with every option. The battery would be dead in less than a week if he didn’t drive it. After a few months of the dealer telling him that this was normal, he traded it in for a Toyota.

It would be nice if Ford had designed the Maverick to be able to use the high voltage battery to automatically top off the 12v battery if needed.

As far as allowing HVB to top off 12v, I had originally assumed that would be the case. Then I was disappointed when I discovered that it was not done but realized that since the HVB is very seldom if EVER 100% charged and that normally it could not be relied on to have enough unreserved capacity to do so at least for more than three days probably less. Lots of speculation as to actual cause and Ford will cure it, eventually. The wife has a first edition hybrid lariat 20,600 miles never deep slept. I do leave running lights on and AC with auto fan speed 2. (Grew in habit of this because I had 2012 Honda crv that would not up voltage from alternator until open circuit voltage was below a certain trigger point. This helped extend battery life from 24-30 months to 30-36 months then I started putting 5amp noco genius on battery about every 9 months for about five or more days and got 64 months out of that battery). The wife's hybrid has had the 12v harness overlay recall performed because her vin was included. She is in her 19th month of her hybrid. At this point I will most likely just replace my 12v at the first hint of a problem. FYI I recently got my maverick Tremor and "why not" reason put my 5amp noco genius on its AGM battery at 10am on Sunday and it was after 2pm Tuesday before it got it charged.

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[Mavrookie 68]

I feel silly for not even noting this, but I have been so panicked that I "couldn't see the forest but for the trees." This whole time I have been thinking my HYBRID battery was having the issue.

We are not talking about a problem with the HYBRID battery...but the REGULAR 12 volt battery...aaaaah.
I feel somewhat relieved.... however...

One poster mentioned upgrading his 12v battery...do you think that would be the simple fix to solve the problem? Installing a NEW FULLY CHARGED 12 volt high end battery?
BUt it begs the question: Is there not an alternator in the maverick to keep the battery ‘healthily’ charged?
I'm trying to avoid having to trickle charge a new vehicle that stays outside.

 

[MavTime]

Sounds like it is a combo of poor quality OEM battery, and not driving daily. What about using a battery cut-off switch, if you plan on not driving it for a while? Of course the alarm wouldn't work, but if you parked in a garage or weren't worried about break-ins it might be an option.

The 2nd Gen Prius was known to act weird when the 12v battery went a little low too, but it took years to get there and would catch you off-guard as it still starts the car. The trick with the Prius was to keep driving it, these cars don't have traditional alternators.

 

[Mavrookie 68]

Sounds like it is a combo of poor quality OEM battery, and not driving daily. What about using a battery cut-off switch, if you plan on not driving it for a while? Of course the alarm wouldn't work, but if you parked in a garage or weren't worried about break-ins it might be an option.

The 2nd Gen Prius was known to act weird when the 12v battery went a little low too, but it took years to get there and would catch you off-guard as it still starts the car. The trick with the Prius was to keep driving it, these cars don't have traditional alternators.

I drive this everyday.
20 mile commute. Plus we get around alot on weekends.
I've had it since July 20-ish and have 4600 miles already.

 

[MavTime]

I'm new to the forum, getting a Hybrid Maverick used this week, so this isn't great news for me. But it does sound like a good quality battery is needed. I know OEM Honda batteries in their Hybrids weren't that good, but they at least lasted a few years. I don't think a dashboard solar charger would help and that's just a band-aid. Hmmm...

edit: this person had luck disconnecting the Maverick from the Ford App
https://www.mavericktruckclub.com/f...p-mode-in-my-12-week-old-lariat-hybrid.26371/

 

[Hdang1980]

I've been off this site for months and decided to check in to see if there were success stories for this problem. Sadly it appears to persist with no ending in sight. 2025 Toyota Whatever can't get here soon enough. I won't even haggle about the trade in value of my maverick.

 

[RockHoundTX]

Like the OP, I too have a two month old Maverick, although mine has less than 500 miles. I never installed Ford Pass and never paired my phone. On day one I turned off Wi-Fi, automatic firmware updates, and turned off the modem.

After mine sits unused for about 8 days it goes into deep sleep mode. The only way I can tell is the interior lights near the rear view mirror don’t illuminate when I unlock the truck and open a door. The key remote (XL) still works to lock and unlock the doors.

The truck always starts and runs normally, but I have noticed that after deep sleep, the 12v power points cut off immediately as soon as the truck is turned off. This happens even after a five mile drive, which I would have thought would be enough to recharge the 12v battery. That’s inconvenient for me, because I want my dash cams to run when I’m parked in store parking lots.

I’ve tried a trickle charger, but once removed from the charger it still goes to deep sleep after about 8 days. It has only happened twice so far since I usually drive it often enough to avoid deep sleep. Based on what I’ve read here on the forum, I expect the issue to be worse when winter arrives.

I’m considering buying the Duralast Gold battery that is mentioned in other threads. Part # T4-DLG Autozone SKU # 490538. About $210.

If you are not checking the voltage of your under-seat 12V battery, there is no way to know what is going on. That absolutely has to be your first step. I have been doing a TON of testing over the last month. If you just jump in the truck, pull up the back seat, and put a multi-meter on the battery, you will want to see at least 12.1V. If you shut the door, lock via the fob, wait about 3 minutes (you will hear a couple of "clicks" at about the 45 seond mark and then another at about 3 minutes), and then check with a multi-meter, the voltage should go up by about .15V or so since no drain on the battery (and this "no drain" is what you really care about).

If you are seeing anything less than 12.1V, you need to put on a trickle charger for at least 2 days. After 2 days, remove the charger, wait about 3 hours, and then see what that volatge is. If the battery is in good shape, it will register about 12.3V with the door open and 12.45V with it locked and no drain. What I found is that a good battery charger does a much better job of topping off the battery than the Maverick's alternator/battery management system. With my trickle charger, I can get my battery to 12.58V. However, driving my truck for 250 miles only broght my battery from 12.33V up to 12.48V. The Maverick BMS seems to intentionally not try to fully charge the battery.

My testing still seems to indicate about a .05V drop every day on a fully charged battery (this is with everything turned off, no FordPass, and the truck locked). If your battery already has sulfation and thus a maximum charge of 12.2V, then it makes sense that it would go into Deep Sleep after 8 days (since would have been drained down to 11.8V). If you could get your battery to full capacity as 12.58V, then you should be able to go well over 2 weeks. Unless you do some testing, you won't know which is the "bigger" problem that needs to be addressed (i.e., if a new battery would help or if you have some larger than normal parasitic drain that needs to be tracked down).

 

[surfstar]

I wonder if a solar trickle charger would be a long-term, easy to implement solution? (awaiting my XL and dismayed this hasn't been fixed on 2023s still!)

This one seems to have decent features: https://www.amazon.com/Renogy-12-Volts-10-Watts/dp/B08L7771DN but horrible reviews lol (note - many people "test" this one incorrectly, if you read the reviews. So I think it is better than the stars would say.)

 

[Mavrookie 68]

If you are not checking the voltage of your under-seat 12V battery, there is no way to know what is going on. That absolutely has to be your first step. I have been doing a TON of testing over the last month. If you just jump in the truck, pull up the back seat, and put a multi-meter on the battery, you will want to see at least 12.1V. If you shut the door, lock via the fob, wait about 3 minutes (you will hear a couple of "clicks" at about the 45 seond mark and then another at about 3 minutes), and then check with a multi-meter, the voltage should go up by about .15V or so since no drain on the battery (and this "no drain" is what you really care about).

If you are seeing anything less than 12.1V, you need to put on a trickle charger for at least 2 days. After 2 days, remove the charger, wait about 3 hours, and then see what that volatge is. If the battery is in good shape, it will register about 12.3V with the door open and 12.45V with it locked and no drain. What I found is that a good battery charger does a much better job of topping off the battery than the Maverick's alternator/battery management system. With my trickle charger, I can get my battery to 12.58V. However, driving my truck for 250 miles only broght my battery from 12.33V up to 12.48V. The Maverick BMS seems to intentionally not try to fully charge the battery.

My testing still seems to indicate about a .05V drop every day on a fully charged battery (this is with everything turned off, no FordPass, and the truck locked). If your battery already has sulfation and thus a maximum charge of 12.2V, then it makes sense that it would go into Deep Sleep after 8 days (since would have been drained down to 11.8V). If you could get your battery to full capacity as 12.58V, then you should be able to go well over 2 weeks. Unless you do some testing, you won't know which is the "bigger" problem that needs to be addressed (i.e., if a new battery would help or if you have some larger than normal parasitic drain that needs to be tracked down).

I truly appreciate your knowledge and your response. I will get some testing done on the battery. I believe I have a multi meter somewhere in my garage.

 

[Mavreezy]

What A giant Pain in the AZZ! I just got my Hybrid 4 days ago, and I noticed after I park it in the garage or anywhere, the truck seem to click (make noise) about every minute for quite some time.
Is this the beginning of what is causing the power drain?

It's normal. I actually like hearing all those electrical clicking sounds. That tells me my Maverick is alive and kicking.

I guess I'm one of the lucky ones. I haven't experienced a single issue (knocking on wood as I type) for the past 10k miles. All I've done is changed the motor oil (Amsoil Signature Series) every 5k miles and that's it.

Thank you Jeezus for looking over her. I appreciate you every morning I wake up for all you have provided and given me...

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