Transmission only has second gear

Hi,

Absolutely, this is likely related to electronics. Chances are it is related to the transmission control module.

If all the lights are staying on, you really need to start by scanning the can-bus.
CAN stands for controller area network. Basically, all computers and modules are tied together via a few wires and communicate with each other.

This type of scan will retrieve codes regardless of the module storing them. A basic scan tool won't do this.

Here is a link showing how it is done.

https://www.2carpros.com/articles/can-scan-controller-area-network-easy

Also, you can reset the transmission control module, but it does require a scan tool that can communicate with it. I don't know if you have one or not. There was actually a technical service bulletin out indicating this needs done. I attached it below. However, I don't know if it would prevent shifting altogether. Take a look through it.

Let me know.

Joe

See pics below.

Hi,

This was only a technical service bulletin. Is there someone that you know that can try the reset? Also, how long did the new transmission work?

Let me know.

Joe

Try the reset and see if things work properly again. If they do, then it's not the transmission but something electrical. Let me know what you find. I'm interested in knowing.

Take care,

Joe

Hi,

I'm glad to hear that, and you are very welcome. As far as how long it will remain working, that is a tough question. It may fail again, or it may never happen again. However, if it does happen again, there should be diagnostic trouble codes stored. So that is the first thing which should be checked.

Let's just hope it never happens again and it simply needs to be reset.

Let me know if you need anything. Also, please feel free to come back anytime in the future if you have questions. You are always welcome here.

Take care,

Joe