2019 Expedition won’t start randomly and all warning lights go off.

sschenck · Apr 22, 2023

My 2019 expedition randomly will not start. It has been to the stealership multiple times and they cannot recreate the problem. Last time, they said they reprogrammed the computer but it started doing it again the same week. When I get into the car, I push the brake and hit the start button like normal and it dings and every service light comes on but the vehicle won’t start. Anyone have any ideas? Battery is good.

SyndicateZ · Apr 22, 2023

Battery sensor monitor should be reset (if the battery was changed)

Deadman · Apr 22, 2023

95% chance the battery is junk.

sschenck · Apr 22, 2023

Have had the battery tested multiple times. Also have hooked a jump box to it and none of that works.

SyndicateZ · Apr 22, 2023

check battery terminal cables. may be loose?

sschenck · Apr 22, 2023

Yeah I tried checked those too. We bought it with 30k miles and it’s done it since 40k or so. We’re at 65 now and still can’t get it figured out. Starting to wonder if it is the starter or a computer issue.

2020-MAX-Limited · Apr 23, 2023

sschenck said:
When I get into the car, I push the brake and hit the start button like normal and it dings and every service light comes on but the vehicle won’t start. Anyone have any ideas? Battery is good.

Could be the brake pedal switch. Do the brake lights come on (might need someone to look). Sounds like what happens when you press the Start button with foot off the brake.

SyndicateZ · Apr 23, 2023

Does it ever not start when remote starting?

sschenck · Apr 23, 2023

Believe the brake lights work but will check. And when it does this the remote start won’t work. Also tried using the app to start it and it won’t work either.

2020-MAX-Limited · Apr 28, 2023

sschenck said:
Believe the brake lights work but will check. And when it does this the remote start won’t work. Also tried using the app to start it and it won’t work either.

Also realized that it might be easier to verify the green LED in the start button comes on when the brake pedal is pushed

2019 Expedition won’t start randomly and all warning lights go off.

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