Vehicle is OFF & Lights flash rear window hatch unlocks

[millsaps118]

Truck has been sitting all day in the garage. Head lights stay on and turn signals flash. Rear window keeps unlocking. Interior lights come on too. I started the vehicle and drove it around the block and while driving the lights in the overhead console stay on. I can hear relays clicking coming from the glove box area. Not sure what to do at this point except bring it to the dealer tomorrow when they open. Any one experienced this or have any ideas or suggestions??? TIA

 

[scottdm]

Any chance you could hook up a battery tester or a battery charger to see if it's a battery related issue? Could also try disconnecting the battery and letting it sit awhile before re-connecting to see if it causes things to reset.

 

[millsaps118]

Any chance you could hook up a battery tester or a battery charger to see if it's a battery related issue? Could also try disconnecting the battery and letting it sit awhile before re-connecting to see if it causes things to reset.

I don't have a tester handy. I did consider disconnecting the battery and letting it sit for a few minutes hoping it would "reset" any glitch but, since I posted the lights stopped flashing so I left it alone. Off to the dealer tomorrow....Thanks for the suggestions!

UPDATE...I spoke to soon, it's doing it again! Going to disconnect the battery and see what happens.

 

[st381183]

Word of advice, video record what it’s doing so when they tell you they can’t replicate You have something to show them.

 

[Blackscreen67]

I've said this since day one and people laughed back then.......

These 2018+ Expeditions are electrical nightmares!

I think it will make the Chrysler tipm disaster look like childs play in time.

 

[millsaps118]

Word of advice, video record what it’s doing so when they tell you they can’t replicate You have something to show them.

First thing I did!!!

 

[millsaps118]

I've said this since day one and people laughed back then.......

These 2018+ Expeditions are electrical nightmares!

I think it will make the Chrysler tipm disaster look like childs play in time.

I agree 100%! I was reluctant to buy one right away. I've experienced some other electrical issues besides this as well.

 

[Uturn]

I am curious if it may involve the WiFi. I do know that if the WiFi is turned on to mine that it will connect to my network. I also wonder if it would connect to someones insecure network. That would open up the possibility for the vehicle to be hacked and a temptation for all types of mischief to occur. I always suggest to leave the vehicles WiFi (not necessarily the hot spot) turned off. One of these days I am going to play with it and see just how accessible it is.

 

[millsaps118]

Expy is on the flatbed. Battery died overnight from the lights staying on and flashing. I should've kept the battery disconnected until the tow truck came but didn't. The override to shift into neutral worked but would not keep the vehicle in N. It kept defaulting back to P so he had to drag it up onto the flatbed and load it backwards. To be continued.....

 

[millsaps118]

I am curious if it may involve the WiFi. I do know that if the WiFi is turned on to mine that it will connect to my network. I also wonder if it would connect to someones insecure network. That would open up the possibility for the vehicle to be hacked and a temptation for all types of mischief to occur. I always suggest to leave the vehicles WiFi (not necessarily the hot spot) turned off. One of these days I am going to play with it and see just how accessible it is.

I've had the WiFi turned off for the last month as I did not renew wifi service. Theoretically I think you're on to something tho!

 

[Meeker]

Doesn't this sound like one of the keyfobs is acting up? Maybe pull the batteries from both fobs and see if it continues... too late I guess if it's already in the shop.

 

[Uturn]

I've had the WiFi turned off for the last month as I did not renew wifi service. Theoretically I think you're on to something tho!

The WiFi, Hotspot, and Sirius are all different. Sirius is the subscription to satellite radio and requires a subscription. Hotspot uses the vehicles onboard cell unit and needs dedicated cell service (thru ATT) to provide WiFi service to vehicle occupants. WiFi itself enables the onboard adapter to connect any WiFi hotspot in range and does not require any subscription, it just needs to be enabled in the Sync settings.

 

[Artie]

Expy is on the flatbed. Battery died overnight from the lights staying on and flashing. I should've kept the battery disconnected until the tow truck came but didn't. The override to shift into neutral worked but would not keep the vehicle in N. It kept defaulting back to P so he had to drag it up onto the flatbed and load it backwards. To be continued.....

I don’t think I could watch mine be dragged on a flatbed while in park.... seriously, that sounds like a horror show.

 

[millsaps118]

UPDATE: Got the Expy back from the dealer last week. They tracked it down to a corroded wire harness for the lift gate! Service guy had no explanation as to why the vehicle wouldn't communicate/detect the key fob. So now I'm wondering how moisture is getting back in there and if this will be happening again.

 

[Bonji]

UPDATE: Got the Expy back from the dealer last week. They tracked it down to a corroded wire harness for the lift gate! Service guy had no explanation as to why the vehicle wouldn't communicate/detect the key fob. So now I'm wondering how moisture is getting back in there and if this will be happening again.

This is good to know. My '19 (with 3500 miles on it) has started this behavior...the lift gate glass will randomly pop unlocked. When it began it was only when parked/off, but it has recently done it in a car wash and a couple other times when underway.

 

[jgudnason]

sounds like the issue i was having (see thread: https://www.expeditionforum.com/threads/new-vehicle-gremlins.34797/)

mine self-corrected about a 10 months ago now. Only major outstanding issue is the mirror freak out issue.

 

[Bonji]

sounds like the issue i was having (see thread: https://www.expeditionforum.com/threads/new-vehicle-gremlins.34797/)

mine self-corrected about a 10 months ago now. Only major outstanding issue is the mirror freak out issue.

It re-enables itself around every three weeks, goes haywire for a few days, then kills itself to the point it's not an issue. Right now my switch is also completely dead. Maybe one month my dealership will get back to me about fixing it.

So...after a few cycles of dying, going haywire, then dying again...it self-corrected? Has it thrown the circuit error code since the correction?

I will need to finally try out my forscan, see if I get that same code.

 

[jgudnason]

So...after a few cycles of dying, going haywire, then dying again...it self-corrected? Has it thrown the circuit error code since the correction?

I will need to finally try out my forscan, see if I get that same code.

correct. went from dead to haywire to.. hmm.. it's working again. and hasn't been a problem for at least 8 months. i kinda expected it to start acting up again when it got cold a couple months ago, but knock on wood, it's been fine.
no error codes thrown since either.

 

[Backinblack]

Question: How do you override to shift into neutral with no battery power?

 

[Bonji]

I tried my forscan interface last night. The rear glass popped open right before I climbed in with the laptop. It saw the rig via the plug, but the rig was unrecognized by the software, so I had to update my forscan. By then I had had too much vodka. Will try again this weekend.