Kernel_task 2017 MacBook Pro issues

We are taking for granted you are doing correctly the SMC reset for your specific machine— https://support.apple.com/en-us/HT201295

One of the functions of kernel_task is to help manage CPU temperature.

If kernel_task is using a large percentage of your Mac CPU - Apple ...

You can try running the Diagnostic/AHT  http://support.apple.com/kb/HT1509 

may kick out an error code.

You can run this utility http://etrecheck.com to get a good look at your System config. for conflicts or issues.

If you need further help you can post the report in its entirety here in the Additional Text Box.

Aztec1998 wrote:

I've tried the SMC reset and that didn't seem to do anything. I've also did the diagnostics and apparently everything is fine. Hmm this is a little weird...

The AHT is not as complete/nor conclusive as Apple Service Diagnostic

If it continues to be an issue, take it in—

In or out of warranty you can get a free over the counter 'Apple Service Diagnostics' test /assessment

Make an appointment —

https://www.apple.com/retail/geniusbar/

I've recently updated my Mac and I've noticed this happened after but not sure if it was caused via the update.

I've attached the report as it won't let me paste all of it in this comment section.

It appears you are running low on free disk space. Some say SSD you should never run more than 70% capacity.

Gatekeeper mechanism, central to security services, which tries to ensure that any code loaded is ‘safe’. Code signatures are only part of this. It is advantageous to keep this active.

Nothing else jumps out on first glance. You may gain more insight allowing full disk Access,

>System Preferences>Security & Privacy>Privacy

You can use the Activity Monitor.app for more insight on processes that are demanding high CPU.