Hi,

Went to open my L322 (07MY SC) this morning and the alarm went off and doors would not open, opened with key and alarm still going, after repeated tries to silence the alarm with the key fob it eventually started working after about 30 seconds.

Got in and started fine but noticed CD had changed to radio, all stations lost from memory, trip distance meter reading zero and date /time set to midnight 01/01/2015 - seemingly all settings reset.

Drove fine, restored all settings as I drove but when I removed key from ignition it did it again, this time minus the alarm - no interior lights, unable to lock - after repeated tries for 30 seconds or so it started working again.

Not yet checked with my IID Tool but I suspect my BCM is at fault.

Anyone had similar or input on subject?

Thanks

Battery/alternator check first, check the connections as well.

Then dig deeper. Lots of things like this caused by bad voltage. There is nothing that can't be fixed with a hammer😜😜
FFRR 4.4 SDV8 Autobiography Santorini Black.
Fiat 500x 1.4 multiair Lounge 2015
2010 LR D4 Commercial 2.7 TDV6

Think your probably right, working ok now but gonna stick the battery on charge tonight first.

Gremlins, water ingress, other

You may never find it  .
Experience is the only genuine knowledge, but as time passes, I have forgotten more than I can remember
Volvo V70 P2 2006 2.4 Petrol 170bhp Estate SE
MG Midget Mk1 1962

Previous: L322 Range Rover TDV8 3.6 2008; L322 Range Rover TD6 3.0 2002; P38A Range Rover V8 1999

Reading it again, first port of call would be to clamp up the battery terminals. Sounds like it’s dropping it’s power supply when off hence the reset.

Try a battery reset and fit everything back on good and secure and it probably won’t happen again....  There is nothing that can't be fixed with a hammer😜😜
FFRR 4.4 SDV8 Autobiography Santorini Black.
Fiat 500x 1.4 multiair Lounge 2015
2010 LR D4 Commercial 2.7 TDV6