GMC Sierra 1999, Owner'S Manual

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Manual Selectable Ride (If Equipped)
The main function of this system is to provide superior
ride comfort while trailering or fully loaded, as well as
for unloaded driving. This system also helps to provide:
D Improved trailering stability
D Improved handling response when trailering or
fully loaded
This button is on the center
of the instrument panel near
the radio. Press it to activate
the selectable ride setting as
desired. An indicator light
near the button will
illuminate whenever
the system is active.
It is recommended to use this system as follows:
D For optimum ride comfort in an unloaded vehicle the
button should be out and the indicator light will not
be illuminated. This switch position indicates
NORMAL levels of ride control or damping.
D For optimum ride comfort when trailering, fully
loaded, driving off
-
road, or when personal
preferences demand more control the button should
be pressed in with the indicator light illuminated.
This switch position indicates FIRM levels of ride
control or damping.
The following guide can also be used to help determine
the best setting.
NORMAL: The indicator light will be off when the
system is in this setting. Use for normal city and
highway driving. Provides a smooth, soft ride when the
vehicle is unloaded.
FIRM (Unloaded): Press the switch to activate this
setting, the indicator light will illuminate. Use this
setting when road conditions or personal preference
demand more control. Provides more “feel” or response
to the road conditions.
FIRM (Loaded): Press the switch to activate this
setting, the indicator light will illuminate. Use this
setting to minimize trailer inputs to vehicle or when the
vehicle is fully loaded. This setting is also appropriate
for off
-
road driving.
You can select a setting at any time based on road and
trailering conditions to provide the best ride and
handling. Select a new setting whenever driving
conditions change.