Maserati GranTurismo Owner's Manual page 268

Driving and Driver Assistance Systems
build up between the tire and road
surface. This is known as aquaplaning
and may cause partial or complete loss
of vehicle control and stopping ability.
To reduce this possibility: slow down if
the road has standing water or puddles.
• Heavy rain substantially reduces
visibility. In these circumstances, even
during the day, turn on the low beams,
to be more visible to other drivers.
• Set the air conditioning and heating
system controls on the demisting
function, in order to avoid any visibility
problem.
• Periodically check the conditions of the
windshield wiper blades.
• In low grip conditions use "Comfort"
5
driving mode (see chapters "Drive
Mode" in this section).
• Avoid driving with ESC OFF as this
could possibly cause a loss of control
of the vehicle.
Driving in Fog
If the fog is dense, avoid travelling if
possible.
When driving in mist, blanket fog or
when there is the possibility of banks of
fog, please consider some advice listed
below.
• Keep a moderate speed.
• Even in daytime, turn on the low beams
and rear fog lights. Do not use the high
beams.
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• Remember that fog creates dampness
on the asphalt and thus any type of
manoeuvre is more difficult and braking
distances are extended.
• Keep a safe distance from the vehicle in
front of you.
• Avoid sudden changes in speed as
much as possible.
• Whenever possible, avoid overtaking.
• If you are forced to stop the vehicle
(breakdowns, impossibility of
proceeding due to poor visibility, etc.),
first of all, try to stop off of the travel
lane. Then turn on the hazard warning
lights and, if possible, the low beams.
• Sound the horn rhythmically if you hear
another vehicle approaching.
CAUTION!
Be aware that rear fog lights can bother
the drivers following your vehicle: when
visibility is back to normal, turn off these
lights.
Driving in the Mountains
Mountain roads usually have many
narrow turns and curves, tunnels and
steep uphill or downhill slopes: please
consider some advices listed below.
• Drive at a moderate speed, avoid
"cutting" corners.
• When driving inside a tunnel in daylight
turn on the low beams in advance;
avoid high beams and be aware of the
rapid brightness change. Avoid abrupt
manoeuvres that could be dangerous
for the following vehicle.
• Never coast downhill with the engine
off or in neutral.
• Remember that passing other vehicles
when driving uphill is slower and thus
requires more free distance on the
road. If you are being overtaken on a
hill, slow down and allow the other
vehicle to pass.
Driving on Snow or Ice
Please consider some general advice for
driving in these conditions, listed below.
• Maintain a very moderate speed.
• Fit snow socks or specific tires if
the road is covered with snow, see
chapter "Tires Information" in section
"Understanding the Vehicle".
• We recommend you to activate the
"Comfort" mode (see chapters "Drive
Mode" in this section).
• During the winter season, even
apparently dry roads can have icy
sections. Be careful when crossing
bridges, viaducts and roads that have
little exposure to the sun and are
bordered by trees and rocks. They may
be icy.
• Keep an ample safe distance from the
vehicles in front of you.
• When driving on dirty roads (mud, snow
or ice), clean you vehicle as described
in the paragraph "Car Wash" (see