On the way home tonight my MY10 sport came up with a red triangle and message saying suspension fault max speed 30 mph, and the car went very bouncy.
I pulled over and turned off the car and left for a minute and started up again, everything seemed fine and I drove which was only 5 minutes away.
When I got home I tried raising and lowering the suspension but it seemed reluctant to rise and a "suspension will rise when system has cooled" message was shown.
Should I call the dealer or is it a gremlin? 3.0 HSE RRS Stornaway (current)
Evoque Prestige Lux (gone)
3.0 a Disco 4 (gone)

Sounds like the compressor is tired. Could indicate a leak somewhere or could just be the compressor on its way out. 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

might want to see if its one corner or all.

Bring up the 4x4 screen and then raise and lower suspension and see if it rises equally on all 4 corners. Front and back can vary but there's not usually much variation across an axle.

Rang my dealer today they said ring LR assist, I did this and two guys came, plugged in a PC and suggested
that it is a sensor fault. They delivered my car to Sytner Coventry, a Freelander was delivered back to me.
Cannot fault Land Rover so far, will keep you all updated. 3.0 HSE RRS Stornaway (current)
Evoque Prestige Lux (gone)
3.0 a Disco 4 (gone)

When the car went "bouncy" did it drop down on to its bump stops? If so, that might indicate a cross axle error which might indicate a faulty sensor or a corrupted calibration (so called plausibility error I believe). 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

Yes I think it did go to bumps stops.
LR Assist guys plugged in the PC and said it was cross axle issue, although the 4 x 4 screen was showing no errors in the corners.
I think they were saying that the issue may be something that is hidden up front that would require bumper off, hence the car is at the dealer. 3.0 HSE RRS Stornaway (current)
Evoque Prestige Lux (gone)
3.0 a Disco 4 (gone)

Oh well, collected my RRS from sytners today, no fault found.
They have re calibrated suspension though! 3.0 HSE RRS Stornaway (current)
Evoque Prestige Lux (gone)
3.0 a Disco 4 (gone)

I had a cross articulation error on my D3. Caused by a soft tyre...

Hi Disco
One of the Assist guys mentioned that when they came out, tyres look ok but probs worth a check. 3.0 HSE RRS Stornaway (current)
Evoque Prestige Lux (gone)
3.0 a Disco 4 (gone)

Mine looked a little soft. When checked, it was down to 16psi, when they are normally up around 40psi (little higher than normal, as the Disco is usually fully loaded)

Tyres all checked out ok. 3.0 HSE RRS Stornaway (current)
Evoque Prestige Lux (gone)
3.0 a Disco 4 (gone)

It's back in the workshop!
This time the wifey was driving it when the red light came on.
I called LR Assist the next morning but everything was fine, typical!
Hopefully this time they will find a fault and replace something! 3.0 HSE RRS Stornaway (current)
Evoque Prestige Lux (gone)
3.0 a Disco 4 (gone)

Collected my RRS today from the dealer, they have fitted a rear height sensor.
Out in it tonight and the red triangle and max speed 30 mph appeared AGAIN.
Stopped, turned ignition off and restarted, all was fine!
Another call to the dealer in the morning  3.0 HSE RRS Stornaway (current)
Evoque Prestige Lux (gone)
3.0 a Disco 4 (gone)

Did they carry out a calibration after fitting the new sensor? If it's throwing up an error because of cross articulation that's a likely cause - calibration corruption. 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

Not sure.
When the light came on I changed the screen to 4 x 4 mode and initially it all looked normal. Then two of the graphic wheels went smaller and the lines under the two wheels flashed. 3.0 HSE RRS Stornaway (current)
Evoque Prestige Lux (gone)
3.0 a Disco 4 (gone)