Every Land Rover since the Discovery 3 has carried Terrain Response, and most owners use it in exactly one mode. That is a shame, because understanding what the system does makes both on-road and desert driving safer and less stressful for the vehicle.
General
The default. Balanced throttle mapping, normal ride height, differentials open until slip is detected.
Grass, Gravel, Snow
Softens throttle response so a heavy foot does not spin the wheels, starts in second gear, and biases traction control to intervene early. Ideal for wet roads after rare rain.
Mud and Ruts
Raises the suspension, allows more wheel slip before traction control acts so the tyres can clear themselves, and pre-loads the centre differential.
Sand
The mode that matters here. Throttle becomes sharper, gear changes are held longer to keep the engine in its torque band, traction control permits significant slip so the vehicle can keep momentum, and the suspension rises. Combined with lowered tyre pressures, this is what makes a Range Rover effortless on the dunes.
Rock Crawl
Low range only. Maximum ride height, very gentle throttle, differentials locked, hill descent control engaged.
A note on faults
A 'Terrain Response not available' message usually points to an air suspension, ABS or transfer box fault rather than the switch itself. Our diagnostic check pinpoints which.
