How can I stop MacBook Air from restarting randomly with macOS Sequoia 15.5?

Hi there! Sorry to hear you're experiencing these random restarts - definitely not normal, especially on a newer MacBook Air. Let's go through a couple of steps to help figure out what's going on:

🧰 1. Check for Panic Reports (Crash Logs)

When your Mac restarts and says it was “because of a problem,” it usually logs the cause.

• Go to Apple Menu > System Settings > General > System Report
• Or open the Console app (press Cmd + Space, type "Console", and open it), then look under Crash Reports or System Reports
• Look for something that says “panic” or kernel panic. These reports can hint whether it’s a hardware, driver, or software issue.

If you find one and want help reading it, feel free to copy and paste the first 20–30 lines into your reply.

🧼 2. Boot into Safe Mode Again (Properly)

Safe Mode disables third-party extensions and does a system check.

To do it correctly:

1. Turn off your Mac.
2. Turn it on, and immediately press and hold the power button until you see Loading startup options.
3. Select your main disk, then hold Shift, and click Continue in Safe Mode. You should see "Safe Boot" in a red font in the top right hand corner of your screen.

Use your Mac normally in Safe Mode for a while. If it doesn’t restart there, the issue might be caused by login items or third-party software.

What happened when you started up in Safe Mode? Any panics?

An app crash log is useless. An app crashing may be a symptom, but it is not the cause of a panic. I’m sorry you were led needlessly down this path.

If you have a panic log, that might be useful. An EtreCheck report will tell us if you have any kernel extensions installed. There is nothing unsafe about EtreCheck. There are people on this site that like to spread fear, uncertainty, and doubt.

The two predominate causes of kernel panics are hardware faults and third-party kernel extensions. There are a few other extremely rare causes including a bad Apple kernel extension. One of those other rare causes relates to NVRAM. A NVRAM reset may resolve the issue, but not likely.

For third-party kernel extensions, Safe Mode will disable them. If you can stand to work on Safe Mode until a panic would be expected, that can help determine if it is a kernel extensions installed. The other way is to uninstall any kernel extensions following the developer’s instructions.

If it panics with no kernel extensions installed, you most likely have a hardware fault. That can be internal or an external device, though the latter is often tied to a kernel extension.

To avoid a session of Q&A, Q&A  and Q&A  

Download the Application Etrecheck ( External Link ) directly from the Developer.

This is a Diagnostic Tool that makes no changes to the computer.

It makes a coherent and readable inventory of both the Hardware and Software used on the computer 

The application is free or paid for added features. 

The Report will Not Reveal Any Personal Information. 

Post back the Full Report - Share Report >> Copy , then  paste  >>>> using the Additional Text Icon  <<<<

Thanks for sharing the crash report - it tells us that the process "suggestd", part of Apple's CoreSuggestions framework, is crashing. This is a background service that suggests contacts, events, links, etc. 

Try this easy cache-clear first. Go to your Launchpad (on your dock) and click on "Other" then launch "Terminal" - it will appear at the right hand end of your dock.

Now type into Terminal .......... rm -rf ~/Library/Suggestions. (Copy and paste if you prefer!) then hit return.

Once you have done so, restart your computer.

Please let us know if it still crashes.

Thank you.

Hi again - perfect, that command ran successfully! 😄

You won't see any confirmation in Terminal — that's completely normal. The absence of an error message means it worked.

Now the next important step is to restart your Mac. This helps macOS rebuild the Suggestions cache cleanly.

Please let us know after you've restarted — and if the issue with random restarts/crashes has stopped. Fingers crossed it helps!

That is NOT good news. 🤔

In your shoes, I'd switch off my computer - shut it down.

Leave it off for 5 minutes and then start it up again; now simply monitor the situation.

Do you have any other symptoms of 'misconduct'?

The Apple Support Community Forums are sometimes visited by AI / LMM / ChatBots.

AI / LLM are basically a Super Version of Predictive Text which is based upon a Data Set.

When that Data Set is based upon older data points, the outcome of the response will be equally out dated and / or unreliable

AI is also the newest form for Data Mining by Large Corporations.

Suggest being very careful about this.

You have been cautioned

If you really what support

Suggest using the previous suggestion Etrecheck application

Unless you are an Apple Software Engineer

Most of what is in the Crash Report is gibberish

To have made such a statement as this " That's not quite true. Personal Information WILL be revealed to the website owner."

It is Technically not accurate

To substantiate such a claim , one would need to post such a report with the Personal Information appearing in the Full and Unedited Report

Then and only then would the claim be have any credence

Thanks for the clarification, Owl-53.

To be precise, I wasn’t referring to the content of the EtreCheck report itself in that comment, but rather to the data shared when a user visits or interacts with the EtreCheck website.

Like most websites, it can collect a visitor’s IP address, browser info, system details, and possibly location, especially if someone uses the upload/share function. That metadata, while not part of the diagnostic report, still constitutes personal or identifiable information in many privacy contexts.

Whether this is a concern or not depends on individual privacy preferences - but I felt it was worth highlighting so users can make an informed choice.

I hope that clarifies the intent of my comment.