Buick 2009 Lucerne - Manual (Page 260)

Adding non-dealer/non-retailer accessories can affect
the vehicle’s performance. See Accessories and
Modifications on page 5-3 for more information.
Magnetic Ride Control™
The vehicle may have Magnetic Ride Control
that automatically adjusts the ride of the vehicle.
The controller receives input from the system to
determine the proper ride. If the controller detects a
problem within the system, the Driver Information
Center (DIC) displays a SERVICE SUSPENSION SYS
message. See DIC Warnings and Messages on
page 3-60 for more information. If this message appears,
have the vehicle serviced at your dealer/retailer.
Steering
Power Steering
If power steering assist is lost because the engine stops
or the system is not functioning, the vehicle can be
steered but it will take more effort.
Steering Tips
It is important to take curves at a reasonable speed.
Traction in a curve depends on the condition of the tires
and the road surface, the angle at which the curve is
banked, and vehicle speed. While in a curve, speed is
the one factor that can be controlled.
If there is a need to reduce speed, do it before entering
the curve, while the front wheels are straight.
Try to adjust the speed so you can drive through the
curve. Maintain a reasonable, steady speed. Wait
to accelerate until out of the curve, and then accelerate
gently into the straightaway.
Steering in Emergencies
There are times when steering can be more effective
than braking. For example, you come over a hill and find
a truck stopped in your lane, or a car suddenly pulls
out from nowhere, or a child darts out from between
parked cars and stops right in front of you. These
problems can be avoided by braking — if you can
stop in time. But sometimes you cannot stop in time
because there is no room. That is the time for evasive
action — steering around the problem.
The vehicle can perform very well in emergencies like
these. First apply the brakes. See Braking on page 4-4.
4-8