What is the most common issue with the Vauxhall Insignia electrical system?

I've been experiencing some issues with my Vauxhall Insignia's electrical system. The car randomly shuts off while driving and the dashboard lights flicker. What could be causing this and how can I fix it?

The most common issue with the Vauxhall Insignia's electrical system is a faulty battery. It's important to get your battery checked and replaced if necessary.

Another possible cause could be a faulty alternator. Have a mechanic inspect the alternator and replace it if needed.

It could also be a problem with the ignition switch or spark plugs. I suggest getting a diagnostic test to pinpoint the exact issue and resolve it.