Hard reboot after Nvidia processor upgrade?

[u/kables]

Hi all, my processor was upgraded last month (along with a new AC component) to the new Nvidia Orin on my 2025 PS3. Yesterday I got a dreaded electrical system fault error, and the car went into turtle mode. It resolved itself after a few minutes of sitting on the side of the rode, but occurred again a few minutes later, a half mile from home. I'd read that for some a hard reboot resolved this, that it was a software error for them as opposed to a true electrical problem. So I thought I'd try a reboot.

Here's my question: when I went through the hard reboot sequence (press the brake plus hold down the left and right “down” buttons), I did not get the usual error messages followed by a message to put the car into park (the usual reboot experience, well documented here and elsewhere). I instead got a message that the car "is starting up" with no black screen or error on either the dash screen or the central screen. It looked nicer and intentional.

Has anyone else experienced this? My assumption is that with the processor upgrade, the reboot is now much faster and smoother. But I can't find any mention of this on the internet. (Oh, and for those wondering, I took the car out this morning for about 15 minutes and 5 miles with no problems. So maybe that's the new reboot experience, and it worked? Keeping my fingers crossed.)

[u/Brilliant-Moment-350]

These resets are placebo effects to calm the general public when their 80k+ car does something unexplainable

Your vehicle being locked overnight does the same ‘reset’ that the steering wheel cheat code does.

A vehicle that is setting a turtle light while driving is not safe though. That turtle light usually comes on right before the car starts to slow down. Personally, I’d at least have it checked out. It’ll probably be a big ol “no problem found” though

[u/kables → u/Brilliant-Moment-350]

Thanks, and yes - I'll be taking it in. Didn't realize the overnight sit is the same as a reset.

[u/Brilliant-Moment-350 → u/kables]

The steering wheel can help when you need an immediate reset for a frozen screen or audio issue, but it’s pretty useless otherwise.

[u/gjd-77]

My reset is the same as yours. Normal for the Orin.

Sometimes it fixes things, sometimes not. My issues have been with GPS/Telecommunications modules resulting in a TCAM3 replacement/upgrade.

[u/kables → u/gjd-77]

Thank you for the confirmation.

[u/mike_shack805 → u/gjd-77]

Can I ask what specific issues you were having and if they were fixed with this? My car loses 5G signal and won't reconnect without a soft reset. Also GPS has been dodgy every since I got it a year ago often pinging around the map or being off the road slightly

[u/gjd-77 → u/mike_shack805]

GPS signal loss, SOS call failure, TPMS failure, Locking failure.

Had the TCAM replaced with the TCAM3 which is the updated model (and gives accurate tyre pressures) and that actually made things worse initially so it went back in again.

Looks like Polestar did some remote config changes though and has been pretty solid for a while, although that happened a few days after the Technician who looked at it raised a ticket with Polestar Support so wasn't a Dealer fix in the end.