Deep Sleep- Recall/Permanent Fix?

[teh603]

From reading on here a lot, the Deep Sleep issue is caused by a wiring harness issue between the high voltage battery and the 12v battery. Something to do with the 12v battery not getting charged.

Is there a recall on it, or did anyone ever get a permanent fix worked out? I sort of remember one person here saying their dealer's tech had gotten some kind of wire spliced and that was considered a "permanent fix" by Ford, but did Ford push that as a TSB or anything?

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[willyboy]

This is apparently not just a hybrid problem. I picked up my 2.0 ecoboost in December. No real issues until this AM. I put the key in to start and NOTHING! My Ford pass said it was in deep sleep. I only have a charger maintainer here. I hooked that up but the green and yellow lights just alternate blinking. It may have charged over 24 hours or so, but I wasn't going to wait for that. I called the dealer I bought it from and asked how to start my Maverick. He said "I don't know" He did give me the road side assistance number. (I Don't Know? I can do that job)
After doing a google search, it said if it won't start try jump starting. That worked. Lucky I had cables here. You do have to rev the engine on the assist vehicle like the old days.
The yellow light on the maintainer is solid so the battery should be charging. I generally hook up a maintainer if I know I won't drive it for a month or so, but I drove it yesterday.

 

[Ford Motor Company]

This is apparently not just a hybrid problem. I picked up my 2.0 ecoboost in December. No real issues until this AM. I put the key in to start and NOTHING! My Ford pass said it was in deep sleep. I only have a charger maintainer here. I hooked that up but the green and yellow lights just alternate blinking. It may have charged over 24 hours or so, but I wasn't going to wait for that. I called the dealer I bought it from and asked how to start my Maverick. He said "I don't know" He did give me the road side assistance number. (I Don't Know? I can do that job)
After doing a google search, it said if it won't start try jump starting. That worked. Lucky I had cables here. You do have to rev the engine on the assist vehicle like the old days.
The yellow light on the maintainer is solid so the battery should be charging. I generally hook up a maintainer if I know I won't drive it for a month or so, but I drove it yesterday.

Hi there! Will you send us a message with your VIN and your local Ford dealer? I can look into things on my end.

 

[jalbano2]

Hi there! Will you send us a message with your VIN and your local Ford dealer? I can look into things on my end.

Same problem here. I picked up my 2.0 in December and today every time I used my truck about 20 minutes later received a message saying it was going into deep sleep. I checked the battery voltage and it's at 11.5. I contacted my battery maintainer and will check it in the morning.

 

[willyboy]

Update. I neglected to say, after getting it started I drove it a little over 20 miles at highway speeds and then hooked up the maintainer/charger. It still took about 48 hours for the light to turn green indicating the battery is fully charged.

 

[JimParker256]

Sounds like it might be an alternator or voltage regulator issue on the EBs. I don't think it's the same condition as the hybrids may be experiencing, so I would also suspect it won'g be the same fix.

 

[Cigargoyle]

I have a 2.0, and was getting the deep sleep message randomly. I noticed one night when I locked the truck that the display screen and the controls beneath it were staying illuminated after all other lights had gone out. Opened the door, relocked the truck, and all went out as they should. Since, I have started checking for this whenever I lock it, and haven't had the message anymore. YMMV.

 

[DeeBow]

Hello, new to the forum so I hope I am not messing up on forum etiquette. My 2022 Hybrid XLT ordered 10/15/21 just hit the lot. I have not take possession of it and hearing about things like deep sleep and needing to buy a battery charge pack to keep in it have me wondering if I even want the thing. Is this an issue with a lot of Mavericks or just a few?

 

[teh603]

Personally, the Maverick is a good enough truck that I'd have taken possession. Deep Sleep can be fixed. Just a matter of the dealership having enough time to disassemble it and get the solder joint done right.

 

[Darnon]

Deep sleep isn't entirely related to the wiring harness failure. And in any case a hybrid that's just now hitting the lot would be built after the date range where Ford [says] they addressed it.

 

[MakinDoForNow]

Update. I neglected to say, after getting it started I drove it a little over 20 miles at highway speeds and then hooked up the maintainer/charger. It still took about 48 hours for the light to turn green indicating the battery is fully charged.

I have hybrid and have not checked into how and where to put maintainer on mine. Am not sure what type battery it actually is but expect deep cycle which 48-72 hours would be expected due to maintenance rate of charge whether by truck or charger on the last 5% of full charge. I normally use maintainer 3-4 times a year. The sealed batteries have to have slow rate of charge near the end to minimize off gassing.

 

[dergrah]

I too, am having a deep sleep problem with my EB. Happens a few times a week.

 

[awscheetz]

I flashed my ecu and the deep sleep went away

 

[awscheetz]

Nevermind still got one today ...

 

[willyboy]

I had a 5 day trip last week and left it sitting at the airport with a fully charged jump starter if needed. I had no issues when I returned. I suspect fully charging the battery with a maintainer may be the way to go until Ford has a solution.

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