I have a 2021 Leadfoot gray F150 STX with heated mirrors, I recently noticed my left side is working but the right side is not and I was wanting to know if I can replace just the lense or if I have to replace the whole mirror for the right side,
Any help would be greatly appreciated

 

Yes you can replace just the glass.

 

Are you sure the "lens" is the trouble?

 

It's one of the more expensive parts in the parts cannon. Might as well start there.

 

Anything else going funky electronics wise? Before I'd start buying parts, there is something I always suggest trying first. This qualifies in my book as being funky. Try a KAM reset, man I'm getting tired of suggesting this. I won't say it will fix the trouble, but it's free, and very easy to do, and sometimes takes care of things like this.
Not sure how olde your battery is, but this could be signs of a weak batt as well, especially if you're experiencing other funkiness.

 

I just figured that was the issue since one side is working and the other is not
I drive a truck for a living and sometimes one side will stop working and u just have to replace the glass

 

no nothing else is going on I just replaced the battery this summer

 

Yep, I used to be heavyhaul myself.
It could very easily be the mirror, but try that KAM reset, sure wouldn't lose a thing by trying it.

 

https://www.autozone.com/collision-b...lacement-glass