Problem with Dashboard Display after Battery Change
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3rd Gear
Joined: Aug 2022
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Problem with Dashboard Display after Battery Change
I've got a 2017 F-150 XLT 4X4 SCrew with the 3.5L turbo engine. Earlier this week, I started up the truck in the morning and on the display received the message "System off to save battery. Please turn ignition off or start engine." I started the engine and the message stayed on the screen. The progress bar at the bottom of the message continued to move to the right, and when it reached the end, the screen went black.
After a little research, I came to realize this was likely to be an indication the battery was starting to fail. As the truck is on it's original battery, this seemed to make sense (over 5 years old). I stopped by the local parts store that evening and had them test the battery. They were having trouble getting a reading, which they interpreted to either be a bad cell or an unknown current draw. Installed a new battery and the battery test went fine.
Problem was, the display screen still remained black. Reading more, I saw some suggest the truck needed to be locked and untouched for 8 hours to "re-learn" itself with the new battery. Left the truck overnight and started it up next morning. Still nothing on the display. Read some more and found a reset for the battery monitoring sensor- flash the high beams 5 times, pump the brakes 3 times, then wait for the battery indicator on the dash to flash 3 times. Got the battery indicator to flash as expected, so the BMS was reset. But the display is still black. I tried another hack I found online - holding down the volume **** and the fast forward button on the radio for 15 - 20 seconds. That didn't bring the display back either.
Any ideas of what the problem might be and how to fix it? I checked fuses 32 and 33 in the passenger footwell and they looked fine. I not only have no display - I also don't have any sound from the radio.
Thanks in advance for your help!
After a little research, I came to realize this was likely to be an indication the battery was starting to fail. As the truck is on it's original battery, this seemed to make sense (over 5 years old). I stopped by the local parts store that evening and had them test the battery. They were having trouble getting a reading, which they interpreted to either be a bad cell or an unknown current draw. Installed a new battery and the battery test went fine.
Problem was, the display screen still remained black. Reading more, I saw some suggest the truck needed to be locked and untouched for 8 hours to "re-learn" itself with the new battery. Left the truck overnight and started it up next morning. Still nothing on the display. Read some more and found a reset for the battery monitoring sensor- flash the high beams 5 times, pump the brakes 3 times, then wait for the battery indicator on the dash to flash 3 times. Got the battery indicator to flash as expected, so the BMS was reset. But the display is still black. I tried another hack I found online - holding down the volume **** and the fast forward button on the radio for 15 - 20 seconds. That didn't bring the display back either.
Any ideas of what the problem might be and how to fix it? I checked fuses 32 and 33 in the passenger footwell and they looked fine. I not only have no display - I also don't have any sound from the radio.
Thanks in advance for your help!
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Joined: May 2005
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From: San Antonio, TX
Welcome to FTE, rr shooter,
You might try disconnecting the battery again , but this time leave the headlight switch on when disconnected to drain any residual voltage from the system. Also, while the battery is disconnected, put a charger on it and make sure it's at 100% before you reconnect it. Sometimes parts store batteries are somewhat low.
After you reconnect the battery, take it for a highway drive for 20-30 minutes. Hope this helps. When I replaced mine, I left the battery disconnected for several hours while I charged the battery to 100%. It's been 4 years and 8 months since I replaced it. That's an all time battery record for me. The OEM battery died at exactly 2 years and 2 months.
You might try disconnecting the battery again , but this time leave the headlight switch on when disconnected to drain any residual voltage from the system. Also, while the battery is disconnected, put a charger on it and make sure it's at 100% before you reconnect it. Sometimes parts store batteries are somewhat low.
After you reconnect the battery, take it for a highway drive for 20-30 minutes. Hope this helps. When I replaced mine, I left the battery disconnected for several hours while I charged the battery to 100%. It's been 4 years and 8 months since I replaced it. That's an all time battery record for me. The OEM battery died at exactly 2 years and 2 months.
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3rd Gear
Joined: Aug 2022
Posts: 3
Likes: 0
Welcome to FTE, rr shooter,
You might try disconnecting the battery again , but this time leave the headlight switch on when disconnected to drain any residual voltage from the system. Also, while the battery is disconnected, put a charger on it and make sure it's at 100% before you reconnect it. Sometimes parts store batteries are somewhat low.
After you reconnect the battery, take it for a highway drive for 20-30 minutes. Hope this helps. When I replaced mine, I left the battery disconnected for several hours while I charged the battery to 100%. It's been 4 years and 8 months since I replaced it. That's an all time battery record for me. The OEM battery died at exactly 2 years and 2 months.
You might try disconnecting the battery again , but this time leave the headlight switch on when disconnected to drain any residual voltage from the system. Also, while the battery is disconnected, put a charger on it and make sure it's at 100% before you reconnect it. Sometimes parts store batteries are somewhat low.
After you reconnect the battery, take it for a highway drive for 20-30 minutes. Hope this helps. When I replaced mine, I left the battery disconnected for several hours while I charged the battery to 100%. It's been 4 years and 8 months since I replaced it. That's an all time battery record for me. The OEM battery died at exactly 2 years and 2 months.
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3rd Gear
Joined: Aug 2022
Posts: 3
Likes: 0
Unfortunately, disconnecting the battery did not help. I left it off for about 40 minutes and turned on the headlights. Re-connected the negative terminal, then locked the truck and let it set overnight. Started it up this morning and still have a blank screen. Guess it's off to the dealer...
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