Can't get in car. Neither app, nor key card working.

[Echo5Giraffe]

As of this morning, I can't get in my 2021 model Y. It's in my garage plugged in with about 70% charge, but the app won't connect, and the key card won't unlock the doors. I've restarted the app and my phone. My wifi and Bluetooth are working for everything else.

Does anyone know what to do?

 

[karkrazy]

Update: I was able to access the hood by jump starting those wires that come out of the front bumper. Then attaching jumper cables to the 12 volt battery got me into the car and the screen on. Pushing the buttons on the steering wheel did not reset the system though. I'm thinking about replacing the 12 volt battery myself.

Does anyone know what size or how to find out what size battery it is? It's a 2021 Model Y Long Range with the 12 volt lead acid battery.

Easiest is to order via the Tesla app and pick it up at the nearest service center

 

[Midnightsun]

As previously mentioned, Groupe51R

 

[Echo5Giraffe]

As previously mentioned, Groupe51R

Sorry I missed that. Thank you very much!

 

[howardnj]

Update: I was able to access the hood by jump starting those wires that come out of the front bumper. Then attaching jumper cables to the 12 volt battery got me into the car and the screen on. Pushing the buttons on the steering wheel did not reset the system though. I'm thinking about replacing the 12 volt battery myself.

Does anyone know what size or how to find out what size battery it is? It's a 2021 Model Y Long Range with the 12 volt lead acid battery.

Open a service request on the app and let Tesla replace the battery.

 

[ucmndd]

Tesla is actually the lowest cost replacement that I’ve found, they will sell the battery over the counter - although it sounds like you might be far from a service center.

It’s simple to replace. Most group 51R batteries should work.

 

[Genorino]

Update: I was able to access the hood by jump starting those wires that come out of the front bumper. Then attaching jumper cables to the 12 volt battery got me into the car and the screen on. Pushing the buttons on the steering wheel did not reset the system though. I'm thinking about replacing the 12 volt battery myself.

Does anyone know what size or how to find out what size battery it is? It's a 2021 Model Y Long Range with the 12 volt lead acid battery.

Per Tesla Owners Manual:

CAUTION
To avoid damage that is not covered by the warranty, replace your low voltage lead-acid battery with the same type of battery. The low voltage lead-acid battery for North American vehicles is AtlasBX / Hankook 85B24LS 12V 45Ah. You can purchase a new lead-acid low voltage battery that is compatible with your vehicle from your local service center.

 

[Echo5Giraffe]

Tesla is actually the lowest cost replacement that I’ve found, they will sell the battery over the counter - although it sounds like you might be far from a service center.

It’s simple to replace. Most group 51R batteries should work.

I brought the battery in to Walmart to replace, and they're asking me about cranking amps.

 

[ucmndd]

I brought the battery in to Walmart to replace, and they're asking me about cranking amps.

Cranking amps are irrelevant. What you’re really looking for is more of a deep cycle battery. ICE batteries need to be able to provide short bursts of very high current to turn over and start the engine. EV batteries need to provide continuous low current to power the car’s electronics when the HV contactors are open.

Not sure if you have an O’Reilly near you but they have one on their compatibility list, a relatively expensive AGM:

https://www.oreillyauto.com/detail/c/platinum/battery---accessories/batteries/31624da3221a/super-start-platinum-agm-top-post-battery-group-size-51r/ssbq/51rtplt/v/a/154176/automotive-truck-2021-tesla-y?pos=0

 

[Echo5Giraffe]

Cranking amps are irrelevant. What you’re really looking for is more of a deep cycle battery. ICE batteries need to be able to provide short bursts of very high current to turn over and start the engine. EV batteries need to provide continuous low current to power the car’s electronics when the HV contactors are open.

Not sure if you have an O’Reilly near you but they have one on their compatibility list, a relatively expensive AGM:

https://www.oreillyauto.com/detail/c/platinum/battery---accessories/batteries/31624da3221a/super-start-platinum-agm-top-post-battery-group-size-51r/ssbq/51rtplt/v/a/154176/automotive-truck-2021-tesla-y?pos=0

I do have an O'Reillys. I'll go there now. Thank you again for your help.