Automaker FCA US is recalling about 1.4 million vehicles in order to avoid hacking by updating software for several radios, after researchers exposed flaws in the software system.

Last week, a team of hackers exposed vulnerabilities in its software and reportedly took control of a Jeep Cherokee vehicle exploiting an internet-connected entertainment system.

The company said it is unaware of any injuries associated to software exploitation and related complaints, warranty claims or accidents.

It added that the recall was issued to help customers with the ongoing software distribution which insulates connected vehicles from remote manipulation.

Some of the affected models include 2013-2015 MY Dodge Viper specialty vehicles, 2013-2015 Ram 1500, 2500 and 3500 pickups, 2013-2015 Ram 3500, 4500, 5500 Chassis Cabs and 2014-2015 Jeep Grand Cherokee and Cherokee SUVs, and 2014-2015 Dodge Durango SUVs.

The company is sending a USB device to the customers affected by the recall to upgrade vehicle software with additional security features.

FCA US’ system quality engineering team identifies and implements best practices for software development and integration.

Earlier this month, Land Rover recalled over 65,000 vehicles to fix a software bug that causes the vehicle’s doors to unlock on their own.

Two US senators have recently introduced a bill urging the Federal Trade Commission and the National Highway Traffic Safety Administration to set vehicle security standards for auto makers.