2004 BUICK CENTURY length

Windshield Wipers
To operate the windshield wipers turn the band located
on the multifunction lever upward or downward.
WIPER:Turn this band to control the windshield wipers.
OFF:Turn the band to OFF to turn off the
windshield wipers.
LO (Low Speed):Turn the band away from you to
LO and past the delay settings for steady wiping at
low speed.
HI (High Speed):Turn the band away from you, to HI,
and past the delay settings for steady wiping at a
high speed.
(Delayed Wiping):Turn the band away from you, just
past OFF, to one of the ve delayed settings, to
choose the length of intervals between each wipingcycle. The further the band is turned upward, toward
LO, the shorter the delay will be. Select one of
these settings for light rain or snow.
MIST:Turn the band to MIST for a single wiping cycle.
Hold it until the windshield wipers start. Then let it
go. The windshield wipers will stop after one wipe. If
more wipes are needed, hold the band on MIST longer.
Be sure to clear ice and snow from the windshield
wiper blades before using them. If they are frozen to the
windshield, carefully loosen or thaw them. If the
blades do become worn or damaged, get new blades or
blade inserts. SeeWindshield Wiper Blade Replacement
on page 5-56.
Heavy snow or ice can overload the wipers. A circuit
breaker will stop them until the motor cools. Clear away
snow or ice to prevent an overload.
3-7

In cold weather, the system will start at reduced fan
speeds to avoid blowing cold air into the vehicle
until warmer air is available. The system will
start out blowing air at the oor but may change
modes automatically as the vehicle warms up
to maintain the chosen temperature setting. The
length of time needed for warm up will depend on
the outside temperature and the length of time
that has elapsed since the vehicle was last driven.
3. Wait for the system to regulate. This may take from
10 to 30 minutes. Then, adjust the temperature, if
necessary.
Do not cover the solar sensor located in the center
of the instrument panel, near the windshield. For
more information on the solar sensor, see
“Solar Sensor” later in this section.
Manual Operation
During daylight hours, the instrument panel brightness
control might need to be adjusted to the highest setting,
in order to see the indicator lights for the various
climate control settings.
OFF:Pressing the OFF button cancels automatic
operation and places the system in manual mode.
Press the AUTO button to return to automatic operation.TEMP (Temperature):To manually adjust the
temperature inside the vehicle, press the up arrow on
the TEMP control to raise the temperature and press the
down arrow to lower the temperature. The display will
show the selection for a few seconds, and then the
outside temperature will be displayed.
When the DUAL light indicator is on, this means the
TEMP control has set the temperature for the driver.
When the DUAL light indicator light is not on, this means
the TEMP control has set the temperature for the
entire cabin.
9FAN:Press the up arrow on the FAN control to
increase fan speed and the down arrow to decrease fan
speed. Pressing the arrows cancels the automatic
operation and places the system in manual mode. Press
the AUTO button to return to automatic operation. If
the airow seems low when the fan is at the highest
setting, the passenger compartment air lter, if
equipped, may need to be replaced. For more
information seePassenger Compartment Air Filter on
page 3-26andScheduled Maintenance on page 6-4.
AIR FLOW:This control has several settings to
control the direction of airow when the system is
not in AUTO.
To access the various modes available, continue to
press the AIR FLOW up or down arrows until the desired
mode, listed below, appears in the display.
3-22

Many adults — by some estimates, nearly half the adult
population — choose never to drink alcohol, so they
never drive after drinking. For persons under 21,
it is against the law in every U.S. state to drink alcohol.
There are good medical, psychological and
developmental reasons for these laws.
The obvious way to eliminate the leading highway
safety problem is for people never to drink alcohol and
then drive. But what if people do? How much is “too
much” if someone plans to drive? It is a lot less
than many might think. Although it depends on each
person and situation, here is some general information
on the problem.
The Blood Alcohol Concentration (BAC) of someone
who is drinking depends upon four things:
The amount of alcohol consumed
The drinker’s body weight
The amount of food that is consumed before and
during drinking
The length of time it has taken the drinker to
consume the alcohol.
According to the American Medical Association, a 180 lb
(82 kg) person who drinks three 12 ounce (355 ml)
bottles of beer in an hour will end up with a BAC
of about 0.06 percent. The person would reach thesame BAC by drinking three 4 ounce (120 ml) glasses
of wine or three mixed drinks if each had 1-1/2 ounces
(45 ml) of liquors like whiskey, gin or vodka.
It is the amount of alcohol that counts. For example, if
the same person drank three double martinis (3 ounces
or 90 ml of liquor each) within an hour, the person’s
BAC would be close to 0.12 percent. A person
who consumes food just before or during drinking will
have a somewhat lower BAC level.
4-3

Normal Maintenance Replacement Parts
Replacement parts identied below by name, part number, or specication can be obtained from your dealer.
Normal Maintenance Replacement Parts
Part GM Part Number ACDelco®Part Number
Engine Air Cleaner/Filter 24508572 A1614C
Engine Oil Filter 25010792 PF-47
Passenger Compartment Air Filter 10406026 —
Spark Plugs
Gap12568387
.060 inches (56.0 cm)41–101
.060 inches (56.0 cm)
Windshield Wiper Blades 22143943 —
Type Shepherd’s Hook Style
Length 22.0 inches (56.0 cm)
6-13