The Terrain Response control will coordinate the engine, transmission, transfer box and suspension to be optimum in the settings you choose.
GGS - Grass/Gravel/Snow is designed to have a softer accelerator pedal response so that the chances of losing traction when pulling away are reduced, you also tend to pull away in a higher gear than you would do in normal mode (2nd instead of 1st).
Mud/Ruts - introduces Hill Descent Control and also holds on to gears longer to provide more engine braking when descending hills.
Sand - this is quite aggressive as you need to gain momentum to go over sandy surfaces and gear changes can reduce that momentum.
Rock Crawl - this is very low speed control to allow you to walk over rocky surfaces and is only available in low range.
If you add in the fact you can go into low range without being in any special mode and you can also turn off DSC in any mode you've got lots of possibilities.
For pulling a heavy load without wheel spin, you need a high gear but first high might be too high so something like 2nd low might be better, DSC off will stop the engine power being reduced if wheel spin is detected and will also reduce momentum if you're moving if you don't turn it off.
So I'd recommend, 2nd Low in GGS mode with DSC off. However, there's always a chance it wont work.1972 Range Rover Classic 2 door V8
2013 Land Rover Discovery 4 HSE - SCRAPPED
2016 Land Rover Discovery 4 Landmark
2022 Volvo XC40 T5 PHEV 282HP FWD 3 cylinder!
13th Oct 2020 8:45 pm
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10367
It does other stuff though I think.
Eg muds and ruts puts the suspension up (won’t if trailer detected)
And locks the the transfer box sometimes. Look at the padlock on the 4x4 screen if you have that.
The padlock is the centre differential and will lock in varying degrees depending on the amount of spin detected in each axle. It can only be controlled by the electronics, you can't lock it yourself.1972 Range Rover Classic 2 door V8
2013 Land Rover Discovery 4 HSE - SCRAPPED
2016 Land Rover Discovery 4 Landmark
2022 Volvo XC40 T5 PHEV 282HP FWD 3 cylinder!
13th Oct 2020 10:36 pm
garrycol
Member Since: 06 Dec 2010
Location: Canberra
Posts: 1115
Gheez it gets me that people have these vehicles and know nothing about how they work. Start by reading the manual and if you do not have one get one
In a worst case scenario (when all else fails) - select Rock Crawl - you will get to low range, go to offroad height, the centre lock fully locks and you have what is essentially an old style 4wd. Never ever use DSC off road as it will limit power - it will come back on when you make TR changes so make sure you switch it back off.
If you can get a copy of the GOE book on the offroad operation of these vehicles it will tell you all you need to know.
Garry
14th Oct 2020 2:28 am
DG Site Moderator
Member Since: 12 Dec 2005
Location: The Gaff
Posts: 50934
DSC is never really off ...it will kick back in regardless if it detects major threshold trauma.21 year LR veteran > D2 GS 2003 > D3 S 2006 > D3 HSE 2009 > D4 HSE 2013 > D4 HSE 2015 > D5 HSE 2018 > DS HSE R-Dynamic P300e 2021
14th Oct 2020 7:15 am
ianm27
Member Since: 02 Jun 2016
Location: Hertfordshire
Posts: 2154
There is also a "cheat's" guide to the terrain controls on the Wiki page here:
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