Tesla Motors announced on Friday that they are taking several steps to prevent overheating of their car's charging system.

In a press release, the company said that they are giving their customers upgraded wall adapters and charging software upgrades. These preventive steps are to avoid excessive heating of the adapters which may start a fire or other accidents. According to Tesla Motors, there are many different reasons for overheating and these include inappropriate wiring of the electrical outlets or corrosion.

In December, Tesla upgraded their charging software which enables the charging system to reduce charging by 25 percent if it senses fluctuations in the power supply for the vehicle.

"Tesla believes that this software update fully addresses any potential risks," the press release said.

In November, a garage fire was reported in Irvine California involving a Model S. The Orange County Fire Authority initially ruled that the fire may have been started by either the car's charging system or a faulty connection of the electricity panel on the garage's wall. In December, the investigators released its final report that the car fire was not caused by its battery and left the decision to the insurance company instead.

A spokeswoman from the company refused to confirm to Reuters if the upgrades are connected to the Irvine fire incident.

Aside from the Irvine fire incident, there are three separate reports of road fires which occurred in Mexico, Tennessee, and Washington. Tesla CEO Elon Musk defended the car and said that it may have been worst if it happened on a conventional car. Nevertheless, the investigation made by the National Highway Transportation Safety Administration ruled that it the fires were not caused by a defect on the car's design.

One of the three reported fire case is allegedly a result of a collision that damaged the lithium-ion battery casing, and in the two other cases were reportedly caused by bumping into metal debris on the road while driving at highway speed.