My wife went to start the car and got some clicking, then a clunk, then nothing. Only the next day the Lincoln app informed her the car went into deep sleep mode (oh so helpful…lol)
Her car is driven several times a week, and went into DSM after sitting only one day. If her car sits in the garage any longer than 2 days it goes on the Battery Tender.
It is my personal experience that when the car goes into DSM, there is no coming out of it without having to jump it. Once it goes into DSM, it no longer has enough juice to start the car, and nothing can be done to “wake it”.
When it goes on the battery tender, it will go a full green charge, meaning the battery is still capable of holding a full charge. So the battery itself is healthy.
The only thing left is assuming the usual culprit with these vehicles. Poorly configured software that randomly puts a hard drain on the battery. There seems to be no pattern as to when this happens. The first time she got DSM, it was the next morning after driving about 250 miles the day before!
The first time it went into DSM, Lincoln concierge sent a tow company to jump it. Ironically the guy who showed up was a long time friend. He said most of his day is running around jumping new cars like these, because there are too much electronics, and even the best batteries currently available are not enough to keep up with the demand.
I ended up buying the exact same jump pack he used, so we are able to jump it within minutes instead of waiting an hour for someone to show up.
Hi Hugo Drivenow. I certainly understand your frustration. And I agree that the ability of Service Departments to properly diagnose electronic/computer/electrical issues in our vehicles is certainly lagging behind the implementation and installation of those features in our vehicles.
So…To try and keep it short: In a properly operating Lincoln/Ford vehicle, Deep Sleep Mode will operate exactly as designed, and as previously explained. Deep Sleep Mode will enable when the battery state of charge drops below a set level, in order to prolong the ability to start the vehicle. And/or when certain other preset criteria are met (freezing temps, 14 days no driving etc.).
Just as you are experiencing an improperly operating system, I have experienced the properly operating system myself. In addition, when the battery is beginning to weaken, DSM can occur more often, therefore becoming a harbinger of a failing battery.
That is one side of the story.
However, the other side of the story is…In a vehicle with electrical/electronic issues/a parasitic drain/a very weak battery etc. there may/will be the types of issues you are experiencing. And that means something is wrong in the vehicle.
In this case, it certainly sounds as though your vehicle has some sort of electronic/computer/electrical issue which needs diagnosis and repair. In cases like yours, there are extenuating circumstances pointing towards a deeper issue. That was why I asked the questions I asked.
Also, it is important to realize, that in a modern vehicle, the best way to truly/accurately determine the health of a battery is via a load test, which can take several hours to perform. And not all battery tenders have that capability. So a “green light” does not necessarily guarantee a battery is fully “healthy”.
Please keep in mind I am
not stating one way or another whether your battery tender has the necessary capabilities. There is no accurate way to blind determine that over the Internet. I am only making the information available for those having similar issues and/or interested in this conversation.
And so much for keeping it short. I tried.
Let us know what your Service Department comes up with and good luck.
