Chrysler is recalling more than a million vehicles thought to be affected by a remote hijacking flaw.
The company said Friday that it has applied "network-level security measures to prevent the type of remote manipulation demonstrated in a recent media report" as of Thursday, but was also offering additional steps to patch the flaw.
The recall is voluntary, and is being carried out of an "abundance of caution," the statement read.
On Tuesday, Wired demonstrated a vulnerability in the Uconnect in-vehicle software allowed two security researchers to remotely hijack and control a moving vehicle. The software flaw allowed the hackers to remotely turn on and off the brakes, interfering with the driver's visibility by switching on the windshield wipers, and shutting off the engine.
Chrysler said it was "unaware" of any injuries or complaints related to the software vulnerability outside of the media report.
Although the Wired report suggested just shy of half a million vehicles in the US are vulnerable to the flaw, Chrysler said 1.4 million vehicles are affected -- more than three-times the initially reported figure.