On a few occcations when i open my car door on my 2011 S-Max i get the Immobilizer Active alert and my car wont start, even tho i have my car fob in my hand (otherwise it wouldnt have opened my car)
On all three occations i called Ford Assist out. AA chip up and scratch their heads. on one occation it just reset itself after about 10 minutes, but the last time the car battery had to be disconnected for a few minutes and it then worked.
The car goes in for this fault to be checked under warranty but im not holding much hope with my local garage. Is this a common problem with keyless entry on Fords?