Deep sleep mode.
Senior Member
Joined: Jan 2013
Posts: 608
Likes: 314
I was told by my service advisor that there are three scenarios that cause deep sleep mode to happen.
Battery voltage falls below a certain point. I believe it was 11.5V, but don't quote me.
No start on the vehicle for 14 days or more.
Outside temp is below a certain number. ( It doesn't get very cold where I live so I didn't pay attention to what temp it was)
None of those apply to me or my truck, so I don't get what's the problem. My truck is my everyday driver. It's not cold where I am. It has to be low battery voltage. They say they can't make it act up.
Battery voltage falls below a certain point. I believe it was 11.5V, but don't quote me.
No start on the vehicle for 14 days or more.
Outside temp is below a certain number. ( It doesn't get very cold where I live so I didn't pay attention to what temp it was)
None of those apply to me or my truck, so I don't get what's the problem. My truck is my everyday driver. It's not cold where I am. It has to be low battery voltage. They say they can't make it act up.
My truck is nice enough to send me a message letting me know though.
Thread Starter
Senior Member
Joined: Oct 2014
Posts: 127
Likes: 57
From: California
You should be able to.
Senior Member
Joined: Sep 2021
Posts: 543
Likes: 221
My 5.0 regularly sits for 2 weeks. And it was below zero again this morning. Ive never seen this deep sleep mode and never failed to remote start. I also have no at&t service so my Ford pass usually says my truck is still in the nearest town.
When its cold out is precisely why i buy a vehicle with remote start. I'm going to be highly upset if my truck decides it's "too cold" to remote start. Lol
When its cold out is precisely why i buy a vehicle with remote start. I'm going to be highly upset if my truck decides it's "too cold" to remote start. Lol
Senior Member
Joined: Jan 2011
Posts: 1,849
Likes: 386
The deep sleep just disables Ford Pass service (and some of the other behind the seen nannies) since it cuts off the search for ATT service. It still starts with key or fob remote start. That's the purpose of the sleep mode, to ensure the battery is saved for its real purpose. Similar to the truck turning off the radio or lights if left on too long while not running.
Senior Member
Joined: Sep 2021
Posts: 543
Likes: 221
The deep sleep just disables Ford Pass service (and some of the other behind the seen nannies) since it cuts off the search for ATT service. It still starts with key or fob remote start. That's the purpose of the sleep mode, to ensure the battery is saved for its real purpose. Similar to the truck turning off the radio or lights if left on too long while not running.
Thread Starter
Senior Member
Joined: Oct 2014
Posts: 127
Likes: 57
From: California
Junior Member
Joined: Dec 2022
Posts: 6
Likes: 1
Same issue
Optional step 1: Get a battery tender and plug it in until the battery is completely charged. Then go from there.
Step 2: Take it to the dealer to test the battery
https://smile.amazon.com/NOCO-GENIUS.../dp/B07W8KJH44
Step 2: Take it to the dealer to test the battery
https://smile.amazon.com/NOCO-GENIUS.../dp/B07W8KJH44
I did and they replaced the battery and it worked for about 3 days and now it goes into deep sleep again. I hate this. What parasitic electric issues should I look for and/or how can turn it off. I do not have remote start on my key foab only through Ford Pass.
