2010 BUICK LUCERNE Owner's Manual

Q: What is wrong with this?
A:The belt is twisted across the body.
{WARNING:
You can be seriously injured by a twisted belt. In a
crash, you would not have the full width of the belt
to spread impact forces. If a belt is twisted, make
it straight so it can work properly, or ask your
dealer to fix it.
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Lap-Shoulder Belt
All seating positions in the vehicle have a lap-shoulder
except for the center front passenger position (if
equipped), which has a lap belt. SeeLap Belt
on
page 2‑32for more information.
The following instructions explain how to wear a
lap-shoulder belt properly. 1. Adjust the seat, if the seat is adjustable, so you can sit up straight. To see how, see “Seats”in the
Index.
2. Pick up the latch plate and pull the belt across you. Do not let it get twisted.
The lap-shoulder belt may lock if you pull the belt
across you very quickly. If this happens, let the belt
go back slightly to unlock it. Then pull the belt
across you more slowly.
If the shoulder portion of a passenger belt is pulled
out all the way, the child restraint locking feature
may be engaged. If this happens, just let the belt
go back all the way and start again.
Engaging the child restraint locking feature in the
right front seating position may affect the
passenger sensing system. See Passenger
Sensing System
on page 2‑67for more
information.
3. Push the latch plate into the buckle until it clicks.
If the latch plate will not go fully into the buckle,
check if the correct buckle is being used.
Pull up on the latch plate to make sure it is secure.
If the belt is not long enough, see Safety Belt
Extender
on page 2‑33.
Position the release button on the buckle so that
the safety belt could be quickly unbuckled if
necessary.
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4. If equipped with a shoulder belt height adjuster,move it to the height that is right for you. See
“Shoulder Belt Height Adjustment” later in this
section for instructions on use and important safety
information.
5. To make the lap part tight, pull up on the shoulder belt.
It may be necessary to pull stitching on the safety
belt through the latch plate to fully tighten the lap
belt on smaller occupants.
To unlatch the belt, push the button on the buckle. The
belt should return to its stowed position. Slide the latch
plate up the safety belt webbing when the safety belt is
not in use. The latch plate should rest on the stitching
near the guide loop on the side wall.
Before a door is closed, be sure the safety belt is out of
the way. If a door is slammed against a safety belt,
damage can occur to both the belt and the vehicle.
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Shoulder Belt Height Adjuster
The vehicle has a shoulder belt height adjuster for the
driver and right front passenger seating positions.
Adjust the height so that the shoulder portion of the belt
is centered on the shoulder. The belt should be away
from the face and neck, but not falling off the shoulder.
Improper shoulder belt height adjustment could reduce
the effectiveness of the safety belt in a crash.
Press the release
button (A) and move the
height adjuster to the
desired position. The
adjuster can be moved up
by pushing up on the
shoulder belt guide.
After the adjuster is set to the desired position, try to
move it down without pressing the release button to
make sure it has locked into position.
Safety Belt Pretensioners
This vehicle has safety belt pretensioners for front
outboard occupants. Although the safety belt
pretensioners cannot be seen, they are part of the
safety belt assembly. They can help tighten the safety
belts during the early stages of a moderate to severe
frontal or near frontal crash if the threshold conditions
for pretensioner activation are met. And, if your vehicle
has side impact airbags, safety belt pretensioners can
help tighten the safety belts in a side crash.
Pretensioners work only once. If the pretensioners
activate in a crash, they will need to be replaced, and
probably other new parts for the vehicle's safety belt
system. See Replacing Restraint System Parts After a
Crash on page 2‑75.
2-28

Rear Safety Belt Comfort Guides
This vehicle may have rear shoulder belt comfort guides
for each outside passenger position in the rear seat.
If not, they are available through your dealer. The
guides may provide added safety belt comfort for older
children who have outgrown booster seats and for some
adults. When installed the comfort guide positions the
shoulder belt away from the neck and head.
Here is how to install a comfort guide to the safety belt:
1. Remove the guide from its storage pocket on therear side of the seatback.
2. Place the guide over the belt, and insert the twoedges of the belt into the slots of the guide.
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3. Be sure that the belt is not twisted and it lies flat.The elastic cord must be under the belt and the
guide on top.
{WARNING:
A safety belt that is not properly worn may not
provide the protection needed in a crash. The
person wearing the belt could be seriously injured.
The shoulder belt should go over the shoulder and
across the chest. These parts of the body are best
able to take belt restraining forces.
2-30

4. Buckle, position, and release the safety belt asdescribed earlier in this section. Make sure that the
shoulder belt crosses the shoulder.
To remove and store the comfort guide, squeeze the
belt edges together so that the safety belt can be
removed from the guide. Slide the guide into its storage
pocket on the side of the seatback.
Safety Belt Use During Pregnancy
Safety belts work for everyone, including pregnant
women. Like all occupants, they are more likely to be
seriously injured if they do not wear safety belts.
A pregnant woman should wear a lap-shoulder belt, and
the lap portion should be worn as low as possible,
below the rounding, throughout the pregnancy.
The best way to protect the fetus is to protect the
mother. When a safety belt is worn properly, it is more
likely that the fetus will not be hurt in a crash. For
pregnant women, as for anyone, the key to making
safety belts effective is wearing them properly.
2-31

Lap Belt
This part is only for the lap belt. To learn how to wear a
lap-shoulder belt, seeLap-Shoulder Belt on page 2‑26.
The vehicle may have a center seating position. When
you sit in the center front seating position, you have a
lap safety belt, which has no retractor.
To make the belt longer, tilt the latch plate and pull it
along the belt.
Buckle, position and release it the same way as the lap
part of a lap-shoulder belt.
To make the belt shorter, pull its free end as shown until
the belt is snug.
If the belt is not long enough, see Safety Belt Extender
on page 2‑33.
Make sure the release button on the buckle is
positioned so you would be able to unbuckle the safety
belt quickly if necessary.
If you find that the latch plate will not go fully into the
buckle, see if you are using the correct buckle. Be sure
that the latch plate clicks when inserted into the buckle.
2-32