Terrain Response - Settings Explained
From DISCO4.COM Knowledge Base
Grass-Gravel-Snow (firm base slippery top):
- If Low Range is selected, ride height is raised and Hill Descent Control is activated
- Differentials are locked.
- Engine pickup is softer, reducing sudden bursts of power.
- Auto transmission upshifts early.
- Sets off in Second Gear, High Range or Third Gear, Low Range
- Stability systems primed to cut any slip or slide
Mud-Ruts (soft uneven muddy ground, wet and soggy sand):
- Hill Descent Control is selected
- Differentials are partly locked
- Low Range is preferred, but not automatically recommended
- If Low Range selected, ride height is raised (NB requires manual activation if trailer attached)
- Transmission shifts early, remaining in higher gears for longer
Sand (soft and dry also deep gravel):
- If Low Range selected, ride height is raised (NB requires manual activation if trailer attached)
- Throttle is responsive to acceleration
- Transmission downshifts readily
- Traction and stability systems allow for increased wheel slip
- Switch off DSC if extremely soft and dry
Rock Crawl (wet or dry solid unyielding ground – Rocky river crossings):
- Low range must be selected
- Differentials are locked
- Ride height is raised (NB requires manual activation if trailer attached)
- Slowest speed for Hill Descent Control is selected
- Allows extreme suspension articulation
- Sets off in first gear
- Stability systems primed to cut any slip or slide
Hill Descent Control:
- High Range: D, R and CommandShift 1
- Low Range: D, R and ALL CommandShift gears
- Fully functional below 50kph
- Descent speed controlled by Cruise Control + or – (press and hold until desired speed)
Low Range / High Range:
- Stationary:
- apply foot brake
- transmission to N (neutral)
- activate transfer gear switch
- transmission to D
- On Move – High to Low: No faster than 40kph
- transmission to N
- push transfer gear switch to LOW and release
- transmission to D. Gear won’t be selected until range change is completed.
- On Move – Low to High: No faster than 60kph
- transmission to N
- pull transfer gear switch to HIGH and release
- transmission to D. Gear won’t be selected until range change is completed.
