You might as well consider having a system update to be free from worries of experiencing the same in the future. A system reset every time it is available helps a lot in maintaining your Polestar EV. Always remember that it's better to prevent damages rather than fix the damages.
As always, the basic tools should not be left out. A tire wrench and a few sizes of wrenches, pliers, and screwdrivers are a must. Flashlight for emergency especially when you are in for a long drive. And a few others for yourself.