Transmission light blinks when I accelerate to a certain speed

Hello,

The transmission light blinks when there is an error code within the transmission module.

So, when it happens does the vehicle drive different?

Best course of action would be to scan the vehicle with a scanner that is capable of retrieving transmission trouble codes. This can help identify what might be the issue.

Here is a guide that will help with this:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

As it could be a sensor related that acts up on that certain condition.
Many auto parts store has scanners that can be used to read transmission trouble codes.

Please let me know of any questions.
Thank you.

A good first step would be to scan for any codes. That can help with the diagnostics.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Also, it would be a good idea to make sure the transmission fluid is at the correct level and in good condition.

Is the burnt smell like burnt fluid or burnt wire smell?
Any smoke when you get the smell?

Since you are getting the engine light, scanning that will help determining what is causing this.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

You can take the vehicle to your local auto parts store, and they can scan and retrieve the code(s) for you free of charge. Typically, all the AutoZone, Napa, Oreilly's etc, have scanners available to use.
Let me know what codes you are able to find.