Why does my Audi A3's navigation system malfunction when driving through tunnels?

I've noticed that when I drive through tunnels, my Audi A3's navigation system seems to glitch and lose signal. The screen goes black or shows an incorrect route. Is this a common issue? Is there any way to fix it?

This is a common problem for some car models, including the Audi A3. The navigation system may lose GPS signal when in an enclosed space, such as a tunnel. To fix this issue, try installing a GPS antenna extension to boost the signal and improve accuracy.

I had the same issue with my Audi A3's navigation system. After some research, I found out that certain tunnels have reflective walls that can interfere with GPS signals. If possible, try to find an alternate route when driving through these tunnels to avoid navigation issues.

One possible solution is to update your Audi A3's navigation system software. Manufacturers often release updates that fix bugs and improve functionality, including issues with GPS signal in tunnels. Check the manufacturer's website or contact a dealership for instructions on how to update your system.