How to fix a malfunctioning touchscreen in a Vauxhall Grandland?

I have a Vauxhall Grandland and the touchscreen has suddenly stopped working. I've tried restarting the car and checking all the connections, but nothing seems to fix it. Any suggestions?

Try resetting the infotainment system by holding down the power button for 10 seconds. If that doesn't work, try disconnecting the car battery for a few minutes and reconnecting.

Have you recently updated the software of your car's infotainment system? Sometimes glitches can occur after an update. Try checking for any available updates and installing them.

If the above steps don't work, it's possible that the touchscreen itself is malfunctioning. You may need to take it to a Vauxhall dealership for repair or replacement.