Data transmission -> Cyber security for Your Volkswagen Jetta 4 Door Seventh Generation (2019-2025)

Data transmission  
Cyber security  
Cyber security describes measures that  
reduce the risk of illegal access to  
vehicle functions, data and control  
modules caused by malware or an  
Internet attack. Of all the components  
in the vehicle, connectivity components  
are most at risk of unauthorized access  
or cyber attacks.  
Connectivity components comprise control modules for data transmission, interfaces, media and diagnostic connections  
through which information and data can be exchanged between the vehicle and mobile devices or the Internet.  
Connectivity components are equipped with security mechanisms to minimize the risk of unauthorized access to vehicle  
systems.  
Connectivity components include in particular:  
Diagnostic connection port  
Control module with installed eSIM card.  
Phone interface  
App-Connect.  
Wi-Fi® hotspot.  
NFC radio technology.  
AUX-IN jack.  
Bluetooth® interface.  
USB port.  
SD card slot.  
The type and number of connectivity components present in your vehicle depends on the vehicle equipment and the  
country.  
Software and security mechanisms  
Software and security mechanisms available in the vehicle undergo continuous development. Similar to computers or  
operating systems on cell phones, software and security mechanisms in the vehicle may also be updated at various times.  
Updates improve the security, stability and operating speed of vehicle systems. The update is a preventative measure, for  
example, to protect from malware and to optimize functionality.  
An update is used to update the software of control modules in the vehicle.  
Depending on the vehicle and country, there are two ways to update your vehicle:  
Updates by suitably qualified professionals. Volkswagen recommends contacting an authorized Volkswagen dealer or  
authorized Volkswagen Service Facility.  
Updates via an Over-the-Air Update.  
WARNING  
Malware can access data and information stored in the control modules, in the Infotainment system and on connected or  
paired mobile devices. In spite of the integrated security mechanisms and regular Over-the-Air Updates, malware can  
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cause damage and malfunctions in control modules and the vehicle. In the same way, connecting mobile devices that are  
infected with malware can result in damage and malfunctions in control modules and the vehicle. The damage can lead to  
a complete loss of your data and malfunctions can cause serious accidents and fatal injuries.  
If the vehicle works or reacts differently to normal, reduce your speed in a controlled manner and contact an  
authorized Volkswagen dealer or authorized Volkswagen Service Facility.  
Perform pending updates as soon as possible once they are made available or have them performed by suitably  
qualified professionals.  
Protect your mobile devices with a suitable antivirus program and by taking commonly known precautions.  
Regularly update the antivirus program using the supplied updates provided by the vendor.  
Minimizing risks  
You can actively help to reduce the risk of unauthorized access to vehicle systems and functions by following these  
guidelines:  
Only use data carriers, Bluetooth devices and cell phones in the vehicle that do not contain any manipulated data or  
malware.  
Ensure that updates provided by Volkswagen are carried out by suitably qualified professionals as soon as possible once  
they are made available. Volkswagen recommends contacting an authorized Volkswagen dealer or authorized  
Volkswagen Service Facility. If the option to perform Over-the-Air Updates is available, depending on the vehicle and  
country, carry out all updates provided by Volkswagen immediately. If the Over-the-Air Update is ignored multiple times b  
the driver, an authorized Volkswagen dealer or authorized Volkswagen Service Facility must be contacted for assistance.  
Volkswagen recommends contacting an authorized Volkswagen dealer or authorized Volkswagen Service Facility.  
Only have the vehicle repaired and serviced by suitably qualified professionals. Volkswagen recommends contacting an  
authorized Volkswagen dealer or authorized Volkswagen Service Facility.  
Over-the-Air Update  
Introduction  
Over-the-Air Updates enable you to  
ensure that the control software of  
your vehicle is kept up to date, e.g. to  
protect against malware and optimize  
functionality.  
Over-the-Air Updates are only available to you after creating the Volkswagen ID and activating VW Car-Net®. You can activat  
VW Car-Net® during the creation of the Volkswagen ID.  
Additional information on using the online services can be found online at:  
carnet.vw.com.  
How can you tell that an Over-the-Air Update is pending?  
As soon as an Over-the-Air Update is available, you will be informed of this via a pop-up. Tap on the pop-up and on Additiona  
information to obtain more information about the Over-the-Air Update, or visit the following website:  
vw.com/software  
If multiple Over-the-Air Updates are available for the vehicle at the same time, one Over-the-Air Update must be completed  
successfully before the next Over-the-Air Update can be carried out.  
Over-the-Air Updates should be performed promptly.  
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