Strange door unlock behavior/door open chime

[jacknifetoaswan]

This is a very new problem, and I haven't been able to find anything about it on here.

Yesterday, when I put my hand on the inside of the driver's front door handle, with the key fob in my pocket, it unlocked the door, as usually. I noticed that it did NOT unlock the rear doors, rear swing gate, or passenger door (audible change in the unlock sound, confirmed physically by checking doors without key fob in my pocket). I then tried to unlock the vehicle in the same manner from the passenger front door, and all doors unlocked, as usual. I also noticed that the driver's front window seems to be getting "confused" more often with the auto up/down feature. Doors have not been off in months. I did not think to check the electrical connection from the door to the body when I was with the vehicle.

This morning, I remote started my vehicle, and when I entered the vehicle, the open door chime sounded louder and more ragged than usual. It also seemed like it was coming from the front driver's dash speaker. My audiobook also sounded like it was more ragged than normal, but music seemed completely normal.

I attempted a hard reset of Sync by holding down the radio power button and right seek, but it didn't change anything. I'm going to re-seat the body to door connection and try pulling the negative battery cable this afternoon when I've got a break in my meeting schedule.

Any other ideas, short of "go to the dealer"?

JR

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[thesocalexplorer]

Are you running the original battery? Perhaps, it's on its way out. Seems to be the general root for many misc. electrical gremlins.

 

[Smocaine]

Sometimes the Bronco will play the "old" Ford chime from the cluster rather than the soft new one from the speakers. This isn't necessarily a fault but it may be a symptom of a weakening battery.

 

[jacknifetoaswan]

Are you running the original battery? Perhaps, it's on its way out. Seems to be the general root for many misc. electrical gremlins.

I am. It's 3.5 years old, and I have experienced the similar weirdness when the battery in my Mustang starts to go out. I haven't seen any indications that the battery is losing steam, but in my experience, 3 years is about it for an OEM battery.

I didn't get a second today to pull the negative battery cable, so hopefully tomorrow.

JR

 

[thesocalexplorer]

I am. It's 3.5 years old, and I have experienced the similar weirdness when the battery in my Mustang starts to go out. I haven't seen any indications that the battery is losing steam, but in my experience, 3 years is about it for an OEM battery.

I didn't get a second today to pull the negative battery cable, so hopefully tomorrow.

JR

I hear you, I just crossed 4 years with my factory battery. Still holds a 12.5v resting voltage after sitting for days. I'm keeping an eye out for any weird gremlins and will swap it out then.

 

[jacknifetoaswan]

And yesterday evening, when I went to take my son to Scouts, the chime was normal again. I reseated the door to body connection after hearing the normal chime, so that wasn't the issue. The door handle is still only unlocking one door. So weird.

JR

 

[CalvinT]

The door handle is still only unlocking one door. So weird.

Did you double check the lock settings in your vehicle setup? The default is for only the driver's door to unlock.

 

[jacknifetoaswan]

Did you double check the lock settings in your vehicle setup? The default is for only the driver's door to unlock.

I didn't, but it's unlocked all doors since I bought the vehicle 3.5 years ago. I can't imagine it would have suddenly changed. I just put the doors back on today and will check.

JR

 

[orion]

I didn't, but it's unlocked all doors since I bought the vehicle 3.5 years ago. I can't imagine it would have suddenly changed. I just put the doors back on today and will check.

JR

You may have received an OTA update that possibly changed it back to driver's door only. I notice, in my manual tranmission, that the hill start assist turns itself back on a lot. I despise that feature. I don't know why it re-enables itself but just assume an OTA update is the cause.

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