I took my car for a wash and simply used a pressure washer to rinse off dirt. After that, I parked my car at 5 PM on Saturday. Then, at 2:40 AM on Sunday, my car’s alarm suddenly went off, and I received a notification that the alarm had been triggered. I rushed to the parking area, but there was no apparent reason for the alarm.

I went back to my apartment, and the alarm triggered again. This time, I noticed the driver’s side door was open, even though I was certain I had closed it earlier. I closed the door again, returned to my apartment, and just 7 minutes later, the alarm went off again. The app once again showed the driver’s door as open.

At this point, I asked my wife to come with me to verify that I was closing the door properly. I also rebooted the car from the screen (without holding the scroll wheels for 15 seconds). About 50 minutes later, the door appeared to open by itself again, triggering the alarm. I went back to the car, sat inside for a while, defrosted it, rebooted it again, and downloaded a software update. After starting the installation process, I left the car and returned to my apartment.

Thankfully, this seems to have fixed the issue.

While troubleshooting, I noticed that when I tried to close the door, it wouldn’t close properly, and the windows were slightly rolled down (though not completely). After rolling up the window and trying again, the door finally shut correctly. I also checked the locking mechanism to make sure nothing was stuck in it, but everything looked clean and fine.

For context, I own a Model 3 RWD Standard Range Highland, purchased at the end of November 2024. I live in Germany and the temperature was around -9 degree centigrade. It was snowing too.

What this alert means:

Cruise Control, including Traffic-Aware Cruise Control,is currently unavailable.

Cruise Control might be unavailable because:

What to do:

Take control and drive your vehicle manually.

When any condition preventing Cruise Control activation is no longer present, Cruise Control should be available. If this alert persists throughout subsequent drives, schedule service at your earliest convenience. Your vehicle is OK to drive in the meantime.

For more information, see Traffic-Aware Cruise Control.

What this alert means:

Your vehicle has detected a condition internal to the high voltage battery that is limiting the battery’s performance.

You may notice that your vehicle's top speed is reduced and it responds slower than previously to acceleration requests.

Your vehicle's maximum range may be reduced, and your vehicle may take longer to charge than before. Maximum charge rate varies, as always, based on location, power source, and charging equipment.

Service is required to restore full performance.

What to do:

Your vehicle is OK to drive.

It is recommended that you schedule service at your earliest opportunity. Without service, your vehicle may continue to show reduced power, acceleration, range, and charging performance.

While this alert remains present, keep your vehicle charged to 30% capacity or higher to avoid any discrepancy between the estimated range displayed on your vehicle's touchscreen and the actual high voltage battery charge level.

For more information on the high voltage battery, see High Voltage Battery Information.

What this alert means:

A communication error occurred between the Wall Connector and the vehicle.

What to do:

Try charging again by disconnecting the Wall Connector from the vehicle and reconnecting.

For more information, see the installation guide for your Wall Connector.

What this alert means:

A communication error occurred between the Wall Connector and the vehicle.

What to do:

Try charging again by disconnecting the Wall Connector from the vehicle and reconnecting.

For more information, see the installation guide for your Wall Connector.