Porsche Cayenne Turbo Driver Manual page 206

Driving downhill
Danger!
Danger of severe or fatal injuries and risk of
damage if the vehicle should overturn.
f Do not drive over slopes at an angle to the line
of maximum gradient.
f Drive downhill slowly, with the front wheels
pointing straight ahead.
f If the vehicle starts to tilt, immediately steer in
the direction of the tilt (line of slope).
f When driving downhill, never allow the vehicle
to roll in Tiptronic selector lever position N
(neutral).
f Use engine braking effect.
If the engine braking effect is not sufficient to
appropriately check the speed, gently apply
the footbrake.
206
Driving and Driving Safety
Note on operation
f Activate the Low Range off-road driving
programme. The off-road ABS is switched on
automatically.
Tips on driving
The same general principle as for uphill driving
applies to downhill driving.
f Do not perform manual gear changes when
driving, and try to avoid stopping.
f Avoid high engine speeds (max. 2500 rpm).
A special circuit of the off-road ABS permits
controlled brief lock-up of the front wheels so that
they can dig into the loose surface more effec-
tively.
Locked wheels slip and can no longer be steered.
f When driving down steep hills on unpaved
surfaces, brake carefully to prevent sliding.
Humps
f Pay attention to the ground clearance of the
vehicle. This information is provided in the
chapter Technical Data in this Driver's Manual:
Please observe the chapter "GROUND CLEAR-
ANCE" on Page 352.
Note on operation
f Activate the Low Range programme and
engage differential lock(s) if necessary.
Tips on driving
f Just before reaching the hump, ease off the
accelerator slightly and use only the vehicle's
momentum to cross the hump. This will
prevent the vehicle from jumping over the
hump and landing on the following downward
slope at excessive speed.
f Avoid high engine speeds (max. 2500 rpm).