Yesterday whilst washing and polishing my 2007 Tdv8 sport I had the radio playing for approx 3 hours.
When I had finished and came to park it up I noticed a warning flashed up on the dash display saying auto parking brake release inoperative.
The parking brake is working ok from the switch and there are no warning triangle lit up on the dash.
Is this just the driveway function or could it be due to the car battery being a bit low on charge even though the car started ok. ??
Any info would be appreciated.

Low battery would be my bet
Charge her up  Visitor from fullfatrr.com
* GONE. 2012 RR Sport HSE SDV6 Orkney Grey. Now being piloted by RRSTDV8
* GONE: 2011 4.4 TDV8 Full Fat. Amazing piece of kit.
* Current. 1974 Lightweight 2.25L petrol. Old skool
* GONE. Freelander GS TD4 Manual MY2013. Orkney Grey with privacy, cold and clearview packs, armrests (a must!) and a spoiler.
* GONE. Range Rover Classic '93 200Tdi Factory fit
* 1949 80" in family since 1975

Been on a couple of good runs and it seems to have sorted itself out as message not coming up anymore.