For a few weeks now, a software update has been causing Tesla has been causing trouble among drivers. Error messages in the tire pressure monitoring system (TPMS) particularly unsettled owners of Tesla Model 3 and Tesla Model Y. But now the all-clear has finally been given: With the new update 2024.44.x has Tesla fixed the problem and the sensors are working properly again.

What was the problem?
After installing the update 2024.38.4+ many Tesla-drivers experienced error messages indicating problems with the BLE tire pressure sensors indicated. The error code "VCSEC_a222" was frequently reported. This affected both the original Tesla-sensors as well as aftermarket models.

Background to the problem:
Tesla had the reporting interval of the sensors increased. The tire pressure sensors now had to transmit the current pressure more frequently. If this was not fulfilled on time, the software triggered an error message, even though the sensors were working perfectly from a technical point of view.

The solution: Update 2024.44.x
With the published update 2024.44.x has Tesla fixed the problem on the software side. User reports from the TFF forum confirm that the tire pressure sensors are now working normally again. It is therefore no longer necessary to remove or replace the sensors.

What this alert means:

What to do:

Try charging the vehicle with a different wall outlet. If the vehicle starts to charge, the issue was likely with the original wall outlet. Contact an electrician to inspect the building wiring connection to that outlet.

If the vehicle still does not charge when you try a different wall outlet, try charging at a different location.

You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can be located through the map on your vehicle's touchscreen display. See Maps and Navigation for more details.

For more information on troubleshooting Mobile Connector status lights and charging issues, refer to the product's owner's manual.

What this alert means:

AC charging cannot begin due to a condition that prevents your vehicle from charging with AC power. DC fast charging / Supercharging should still function as expected.

Your vehicle's onboard charger is detecting input voltage at the charge port when no power has been requested from the external charging equipment, which indicates the external charging equipment is not functioning as expected.

This can sometimes be caused by a hardware issue specific to the external charging equipment, which prevents the charging equipment from switching power to the vehicle on or off when requested. It could also occur due to another condition affecting the external charging equipment, or a condition affecting your vehicle itself.

What to do:

This alert is usually specific to external charging equipment and power sources and does not typically indicate an issue with your vehicle that can be resolved by scheduling service.

Try charging with multiple, different types of charging equipment.

You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can be located through the map on your vehicle's touchscreen display. See Maps and Navigation for more details.

For more information on troubleshooting Mobile Connector or Wall Connector status lights, refer to the product's Owner's Manual at Charging & Adapter Product Guides.

What this alert means:

Your vehicle has detected that the rear tires have experienced more wear over time than the front tires, exceeding the recommended difference.

What to do:

It is recommended that the tread depth on all tires be inspected. As your tires wear during normal driving, the rear tires generally wear more quickly than the front tires.​

Tire rotation is important to balance tire wear evenly across all tires. ​

Failure to rotate tires as recommended poses a risk of hydroplaning and losing control of the vehicle on wet roads. Failure to rotate tires also decreases the life of your tires, requiring premature replacement.​

It is recommended that you schedule service via your Tesla Mobile App or with an independent service provider to have your tires rotated when:

Tires may need to be replaced if the rear tread depth is determined to be at an unsafe level and a tire rotation is no longer adequate.

Upon completion of tire inspection and any necessary tire service, update your vehicle’s tire configuration to optimize your vehicle settings to your tires and clear the alert for at least 6,250 miles. For more information, see Tire Care and Maintenance.

It is not recommended that you rely on this alert instead of routine checks of tire tread depth. This alert should only be present when your vehicle estimates the tires are far beyond the recommended service interval.

This alert is calibrated for Tesla tires and is not expected to work with tires of different types or sizes, including combinations of different tire brands or models. It may not display, or may display prematurely, on vehicles using tires not recommended by Tesla. For more information on recommended tires, see Wheels and Tires.

What this alert means:

What to do:

An internal issue was detected by the Wall Connector.

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