Had this message randomly come up on the dash when using my original smart key and dash message informed me that I needed to place it near the receiver (near left hand side of the steering column). Didn't make a jot of difference. So, resorted to using the spare smart key. That worked fine for a few weeks, until today when I had the same message with the second smart key
So went back and tried the original smart key, dead as a dead thing that just died. Resolved by replacing batteries (CR2032) in both smart keys and now all good. The L322 used to warn me when the smart key battery was low and according to the L405 manual it should do the same.....but it didn't
Car is MY18+ (latest shape) and the way around getting the car to start is to use the remote start app on the I-phone, as long as at least one of the smart keys still has enough battery power to open the car.
Another fullfat lesson learned SDV8 AB MY 2019
SDV8 VSE MY 2015 - Gone
5.0 S/C AB MY 2010 - Gone
4.2 S/C VSE MY 2006 - Gone