Bought a 2021 Grandland X in August, Vauxhall app said the car needed an update, bought a new USB stick, did the update which appears to have crashed the system, screen has this message " Software loading on demand..... WARNING: System has limited functionality" Have contacted Vauxhall Customer Care who couldn't be more unhelpful! They want me to use the local Vauxhall dealers to run a diagnostic test - £150 which I have to pay, even though it was their update that caused the crash in the first place. Cost of new system £2428.06. Would just like to reboot and never update again, any ideas please.