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Passive entry fob failure

bijan

Member
Aug 7, 2018
843
718
Oakville Ontario Canada
Just got the passive entry fob. Paired it to the car and then turned off Bluetooth on my phone.

Then I went to the post office. It worked on the way there but then I went to put the package I got in the trunk and the trunk wouldn't open. Tried to open one of the doors and it wouldn't open neither rear nor front. Had to double tap the middle button to unlock the doors. Then subsequently locked the car and tried a door handle and it eventually worked.

Drove home and parked. Walked away and car locked itself. Got home and realized I forgot the package in the trunk. Same thing happened trunk wouldn't open rear door wouldn't open. Eventually holding the fob in my hand long enough the door did open and I was able to open the trunk.

Tldr; seems passive entry fob is not any more reliable than my phone. Based on my very limited experience so far, actually less reliable than my phone.

I'm carrying the fob in the rubber carrier from the Tesla store in the front right coin pocket of my pants.
 

diamond.g

Active Member
Nov 5, 2015
2,430
1,395
Moyock, NC
Just got the passive entry fob. Paired it to the car and then turned off Bluetooth on my phone.

Then I went to the post office. It worked on the way there but then I went to put the package I got in the trunk and the trunk wouldn't open. Tried to open one of the doors and it wouldn't open neither rear nor front. Had to double tap the middle button to unlock the doors. Then subsequently locked the car and tried a door handle and it eventually worked.

Drove home and parked. Walked away and car locked itself. Got home and realized I forgot the package in the trunk. Same thing happened trunk wouldn't open rear door wouldn't open. Eventually holding the fob in my hand long enough the door did open and I was able to open the trunk.

Tldr; seems passive entry fob is not any more reliable than my phone. Based on my very limited experience so far, actually less reliable than my phone.

I'm carrying the fob in the rubber carrier from the Tesla store in the front right coin pocket of my pants.
Can you try switching to the other battery? See if that makes a difference.
 

bijan

Member
Aug 7, 2018
843
718
Oakville Ontario Canada
I tried the other battery. Trunk still failed. Rear door failed. Front door opened once I got fob out of my pocket and in my hand.

I also removed the fob from the rubber carrier/holder just in case that was the issue.

Edit: tried again I'm front pocket with no phone in it instead of coin pocket. Same result.
 

diamond.g

Active Member
Nov 5, 2015
2,430
1,395
Moyock, NC
I tried the other battery. Trunk still failed. Rear door failed. Front door opened once I got fob out of my pocket and in my hand.

I also removed the fob from the rubber carrier/holder just in case that was the issue.

Edit: tried again I'm front pocket with no phone in it instead of coin pocket. Same result.
I would return to Tesla as it sounds like that fob is defective.
Last thing I would check, in the lock screen does both your phone and the fob show as active?
 

bijan

Member
Aug 7, 2018
843
718
Oakville Ontario Canada
I would return to Tesla as it sounds like that fob is defective.
Last thing I would check, in the lock screen does both your phone and the fob show as active?

Fob shows as active and allows me to drive. It just has trouble with opening the trunk and the doors at first. Will try to return.

Edit: scheduled mobile service to see if they can troubleshoot it.
 

mrau

Authorized Driver
Supporting Member
Nov 12, 2018
447
856
Mid-Michigan
Might try to delete the fob as a key and then re-enter it. A reboot of computer may help as well.

If still not working right, I would suspect a faulty fob.
 

No42

Member
Jun 25, 2018
151
242
WA
Just got the passive entry fob. Paired it to the car and then turned off Bluetooth on my phone.

Then I went to the post office. It worked on the way there but then I went to put the package I got in the trunk and the trunk wouldn't open. Tried to open one of the doors and it wouldn't open neither rear nor front. Had to double tap the middle button to unlock the doors. Then subsequently locked the car and tried a door handle and it eventually worked.

Drove home and parked. Walked away and car locked itself. Got home and realized I forgot the package in the trunk. Same thing happened trunk wouldn't open rear door wouldn't open. Eventually holding the fob in my hand long enough the door did open and I was able to open the trunk.

Tldr; seems passive entry fob is not any more reliable than my phone. Based on my very limited experience so far, actually less reliable than my phone.

I'm carrying the fob in the rubber carrier from the Tesla store in the front right coin pocket of my pants.

Happened to me: New passive entry key is not working reliability
 
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bijan

Member
Aug 7, 2018
843
718
Oakville Ontario Canada
Sounds like a faulty key fob. Car entry has been 100 % ever since I started using the new key fob.
Including the trunk and/or walking up to the trunk first?

Edit: just tried it and I opened the driver's door first it worked and I could then open the trunk. Every time I walked up to the car's trunk from the rear direction directly it did not.
 
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--1--

Member
Apr 10, 2019
79
58
Chester, VA
:)Just received my new passive FOB. Works well in the garage and very happy. Have a charging issue and haven't driven my car in two days. Currently at the local SC for trouble shooting and repair.
 

Runt8

Active Member
May 19, 2017
1,986
2,446
Colorado
My phone is 100% reliable. If I were having issues with the phone and the fob my first thought would be a problem with the car. But probably easiest to replace the fob first.
 

bijan

Member
Aug 7, 2018
843
718
Oakville Ontario Canada
My phone is 100% reliable. If I were having issues with the phone and the fob my first thought would be a problem with the car. But probably easiest to replace the fob first.
My phone is 99% reliable though. Maybe once or twice a month I have an issue. Fob is a much higher failure rate so far so I'm guessing it's the fob and not the car.
 

sduck

Mr. Duck
Nov 6, 2017
1,530
1,594
Nashville TN
Mine has also been working 100%. What I see as a possible problem with the OP's situation is just turning off the bluetooth on your phone - I think you really need to disable it as a key in the car - than the car won't be looking for it. That's what I did, and it's been working as well as my phone did (iphoneX, which worked 100% also). What i really like about the fob is the fast access to the frunk - just 2 clicks and you're in.

Edit: BTW disabling the phone as a key doesn't disable the app - you can still do everything from the app, like summons and everything, just not do the walk up to open/walkaway lock thing.
 
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crackers8199

Active Member
May 31, 2015
1,288
664
lake elsinore, ca
Including the trunk and/or walking up to the trunk first?

Edit: just tried it and I opened the driver's door first it worked and I could then open the trunk. Every time I walked up to the car's trunk from the rear direction directly it did not.

this is exactly what i saw with my phone key prior to getting v10, but it has been perfect since getting the update...like, exactly the same. my phone key was nearly perfect for weeks (since i upgraded to the pixel 3), then after a software update (not v10) suddenly started exhibiting exactly the behavior you're describing here. after the next software update (which happened to be v10), it went back to being flawless again.

it seems like there may be a glitch somewhere in certain software versions that may cause this (and it may carry over to the fob, which would make sense since the fob is basically like having a tesla version of your phone in your pocket).
 
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