Mercedes-Benz 2008 GL 450 Operator's Manual page 259

Controls in detail
Driving systems
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The cruise control switches off
automatically when
you step on the brake pedal
you depress the parking brake pedal
The cruise control switches off automatically and
an acoustic warning will sound when
the vehicle speed is below 20 mph
(30 km/h)
®
the ESP is in operation
®
the ESP is switched off with the ESP
switch ( page 105)
®
the ESP has switched off due to a
malfunction ( page 441)
you set the automatic transmission to N
while driving
Observe additional messages in the
multifunction display that may appear.
!
Setting the automatic transmission to N
while driving cancels the cruise control.
However, the automatic transmission should not
be set to N while driving except to coast when
the vehicle is in danger of skidding (e.g. on icy
roads).
258
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Depressing the accelerator pedal does not
deactivate the cruise control. After a brief accel-
eration (e.g. for passing), the cruise control will
resume the last set speed.
Setting a higher speed
Warning!
If you increase the set vehicle speed, keep in
®
mind that it may take a brief moment until
the vehicle has reached the set speed.
Increase the set vehicle speed to a value
that the prevailing road conditions and legal
speed limits permit. Otherwise, sudden and
unexpected acceleration of the vehicle
could cause an accident and/or serious in-
jury to you and others.
You can increase the speed in two ways.
Adjustment in 1 mph (Canada: 1 km/h)
increments
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The set value is increased in 1 mph
(Canada: 1 km/h) increments each time you lift
the cruise control lever up to the resistance
point.
Briefly lift the cruise control lever up to
G
the resistance point in direction of
arrow 1 ( page 256).
Release the cruise control lever.
The vehicle speed increases in incre-
ments of 1 mph (Canada: 1km/h).
Adjustment in 5 mph
(Canada: 10 km/h) increments
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The set value is increased in
5 mph (Canada: 10 km/h) increments each time
you lift the cruise control lever past the
resistance point.