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My trunk has a mind of its own - opens randomly

hcsharp

Active Member
Jun 7, 2011
3,377
1,340
Vermont
The trunk on our 2018 Model 3 recently started some odd behavior. Usually about once a day, some days more often, it will randomly open on its own. Sometimes it does it while driving but usually the car is parked. It doesn't seem to matter whether you're near the car or not, whether it's locked or unlocked. There doesn't appear to be anything visibly wrong with the latch itself. Once you close the trunk it seems to be solidly closed, and it says it's closed on the screen and in the app (until it opens again). I can't find any pattern.

It also locks shut at times that it shouldn't. For example the car can be parked and unlocked and even have a door open, but you can't open the trunk from the back of the car. It will open from the app or the screen but not from the release button on the trunk itself. It's a pain when you have an armload of something and you just want to open the trunk and put it in. Instead you have to set it down, walk to the front of the car and open it from the screen.

Has anyone else seen this behavior? Is it a bug in the latest software?
 

hcsharp

Active Member
Jun 7, 2011
3,377
1,340
Vermont
This problem is getting worse. Yesterday it opened several times while driving. It's completely random. The app is not open on the phone. Two days ago it opened while I was in the supermarket. When I got back to the car with the wide-open trunk, I loaded my groceries in and shut it firmly. Then as I was about to open the front door and get in, it pops open again. Weird. No one else has seen this?
 

SMAlset

Well-Known Member
Mar 4, 2017
8,823
9,415
SF Bay Area
They should be able to pull logs and see what is going on. Put in a service request now as it’s a safety issue if it opens while driving.

Haha Are you sure no one isn’t playing with your app and opening your trunk as a gag? You don’t have a key fob that you keep in your pants pocket that does a butt depress like a butt dial on a phone right?
 
Last edited:

Casmium

Member
Sep 14, 2018
315
323
Mississauga
i would first have a look at the emergency open latch in the truck and make sure the button is not stuck, its the glow in the dark button inside the trunk, other then that it's probably an electrical short of some sort...
 
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hcsharp

Active Member
Jun 7, 2011
3,377
1,340
Vermont
i would first have a look at the emergency open latch in the truck and make sure the button is not stuck, its the glow in the dark button inside the trunk, other then that it's probably an electrical short of some sort...
Good idea. I'll take a look at the emergency release tonight. We got a software update last night so I'm waiting to see if that makes a difference. But I'm starting to think like you are that it's an electrical issue, not software.

Haha Are you sure no one isn’t playing with your app and opening your trunk as a gag?
Some of my friends I wouldn't put it past them! But we have no fobs and the app is not open on my phone when it happens.
 

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