Hi there, my RRS 2011 SC alarms at night and the neigbours love me. I have reomoved the horn fuse but this is not a fix. Help  Love the sport. First the 2005 TDV6, now the 2011 Supercharged. Absolutely brilliant!

I’ve read that the bonnet switch can cause issues. Have you searched the forum? 2019 5.0 SC SVA (Current)
2012 5.0 SC AB. Sadly written off by a campervan
23 plate Focus ST (Current)
1942 VEP Ford GPW Jeep (Willys) (Current)
1943 Whites M16 Halftrack (Current)
16 plate Eurofighter Typhoon, 2 x Eurojet engines with 20,000lbs thrust each. 1380mph

I'd start with the bonnet catch. My previous RRS did this - alarm would go off randomly, changed the catch and no more false alarms. You could pull the catch sensor wire and, I think, short it to see if false alarms stop. A new catch is easy to fit or you could just run with the sensor disabled. 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

Thought I read somewhere people bridge the switch wiring plug out with paper clip to disable it temporarily, might have that wrong though.

Cheers
Col

Thank you. I heading out into the dark. See how i go. Love the sport. First the 2005 TDV6, now the 2011 Supercharged. Absolutely brilliant!

Mine was the bonnet catch. Easy fix  Steve.

Bonnet catch - pull connector insert tin foil, replace, done

Same issue on my L494, bonnet switch replaced under warranty.
Barry 2017 Range Rover Sport TDV6 L494 SE Fuji White
2011 Range Rover Sport SDV6 L320 SE Fuji White Loved but GONE
2010 TRAKKA Motorhome Fiat Ducato GONE (What a dud, don't buy one)
2006 Discovery 3 SE TDV6 Automatic Chawton White/Ebony. Loved but GONE
2006 BMW X5 diesel White/Charcoal, Bought new, Gone after 12 years! Was Excellent.
Ex Member Range Rover Club NSW

It was the left rear passenger door actuator ! Who would have guessed ? My mechanich fault found it ! Love the sport. First the 2005 TDV6, now the 2011 Supercharged. Absolutely brilliant!