I would take it straight back in to the Dealer who carried out the upgrade without delay. Just drive it straight there, never mind about making appointments etc., as your car seems to be seriously unsafe to drive.
Your experience is exactly what the update was supposed to prevent and cure. Sounds like the update has not been applied properly, or something has gone badly and seriously wrong with the FCM system
Though I no longer have my Eclipse Cross, it ran perfectly after the update was applied, with no issues whatsoever arising.
Don't delay, your car is a serious danger, not only to you, but all other road users..
Your experience is exactly what the update was supposed to prevent and cure. Sounds like the update has not been applied properly, or something has gone badly and seriously wrong with the FCM system
Though I no longer have my Eclipse Cross, it ran perfectly after the update was applied, with no issues whatsoever arising.
Don't delay, your car is a serious danger, not only to you, but all other road users..