Another issue to add to my growing list...

I've now had the Forward Alert Disabled (or unavailable, or similar) message twice. In the menu on the stalk I have had Forward Alert turned off since getting the RRS, and it still is - it seems such a stupid feature as I can see fine when getting close to a car at low speed.
It hadn't happened until I received the RRS back from it's recent service, where they'd carried out a wiring repair to a front park sensor (maybe coincidence, but the bumper must've been off). Is the Forward Alert system related to the cruise control system? Is it possible something could have been disturbed at the time of the park sensor repair? The first time I got the message I deliberately tried the cruise control and everything worked ok, including slowing when approaching a car in front.

No errors were found after the first time I saw the message, and I'm not home to check after this second time - my wife informed me of it.

Any idea's would be great, as it's not something I use I won't go to the expense of a dealer visit, but it's just another little irritation I'd like to get sorted.

Dennis 13MY Range Rover Sport Autobiography SDV6 - mine
14MY Range Rover Evoque Dynamic SD4 Black Pack - wife's
99MY Defender 90 TD5, Soft Top Conversion - my toy, and bairns favourite

Yes the FA is part of adaptive cruise as it is that that maintains the distance that you set between your car and the car in front. I own my life to FA on my TDv8 RRS - driving very very slowly through a very dense patch of fog the light on the dash started blinking that it had detected something in front of the car.............. so glad I was only going at walking pace as when I got close to the object it was the rear of a farm trailer with no lights on it being towed by a tractor also with no lights on it......... I never disabled it after that. I found it a pain on snowy days though because the detector head would get snowed up and then you got the warning "Detector Blocked" on the dash and you had no cruise control at all after that. There isn't a layer of squashed flies or muck on the detector head is there? 2020 Pangea Green 1st Edition D240 New Defender 110 is here and loving it
2018 Melting Silver Mini Countryman PHEV - soon to be replaced
2015MY Corris Grey SDv6 HSE Dynamic, the best car I have ever owned, totally reliable only a cou0le of rattles in 3 years, now no longer in my care
Also in my garage is a 1996 TDi300 Defender 90 County HT made into a fake CSW

Thanks Tim in Scotland

Sounds like you were lucky there, that's the worst with driving in rural places - there is always some stupid who thinks "it'll be ok". Best thing for that kind of driver is some old school (discipline...)

It seems strange then how once I got the message of FA being disabled that the adaptive cruise control operated fine, unless is was a momentarily blip. It would have been tested within a minute of the message appearing, as my mind immediately suspected the same radar system being used for the forward detection.

Anyone know exactly where this radar unit is, is it behind the front bumper?
I asked for the park sensor repair during it's service due to still being covered by warranty, and was disappointed to hear of the wiring repair - being experienced in wiring repairs this has caused me concern, depending on the mechanics attitude to doing a good job. I'd already been considering removing the bumper to check the repair for weather resistance, as if done poorly then could cause no end of trouble if left to corrode. If the radar unit was a simple fix like securing a connector properly then best to get it done asap.

Dennis 13MY Range Rover Sport Autobiography SDV6 - mine
14MY Range Rover Evoque Dynamic SD4 Black Pack - wife's
99MY Defender 90 TD5, Soft Top Conversion - my toy, and bairns favourite

I've got a MY17, and I had that message as well, and I couldn't clear it even by stopping and re-starting. However, it worked OK after I washed the windscreen. Whether this is a coincidence I don't know, but it gave me the impression that the sensors were behind the rear-view mirror. The problem has never re-occurred. I read up a bit about it afterwards, and someone said that it may disable in rain, which may relate to the same assumption.

On RRS1 pre facelift it was in the lower intake, near side

Sorry Tim, our messages were almost coincidental. If I'd read yours first, I wouldn't have posted as it's obviously wrong, at least for insiorc's case.

So after remembering I had a workshop manual, I've spent a few hours hunting for the radar module. It's a comprehensive manual anyway, and of all the places it could be I found it in section 3 - Powertrain!
As per the pic above, it's in the same place just central, shown in the below diagram.



And the text about Forward Alert:

Forward Alert
The forward alert system utilizes the adaptive speed control system components.

So this gives me something to start with, at least rule out any loose connections. I'll need to turn it on and test it's operation when I've not had the message, and who knows, if I give it a chance I might like it...but then if it fails I'll miss it  13MY Range Rover Sport Autobiography SDV6 - mine
14MY Range Rover Evoque Dynamic SD4 Black Pack - wife's
99MY Defender 90 TD5, Soft Top Conversion - my toy, and bairns favourite

I thought the forward alert message could come from both the IEB (adaptive cruise radar based) and AEB (camera based near rear view mirror) systems.

That would certainly fit with my experience. Maybe I was right in my assumption after all?