lights BUICK CENTURY 1999 User Guide

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4-16
Here are some tips on night driving.

Drive defensively.

Don't drink and drive.

Adjust your inside rearview mirror to reduce the
glare from headlamps behind you.

Since you can't see as well, you may need to
slow down and keep more space between you and
other vehicles.

Slow down, especially on higher speed roads. Your
headlamps can light up only so much road ahead.

In remote areas, watch for animals.

If you're tired, pull off the road in a safe place
and rest.
Night Vision
No one can see as well at night as in the daytime. But as
we get older these differences increase. A 50
-year-old
driver may require at least twice as much light to see the
same thing at night as a 20
-year-old.
What you do in the daytime can also affect your night
vision. For example, if you spend the day in bright
sunshine you are wise to wear sunglasses. Your eyes will
have less trouble adjusting to night. But if you're driving, don't wear sunglasses at night. They may cut
down on glare from headlamps, but they also make a lot
of things invisible.
You can be temporarily blinded by approaching
headlamps. It can take a second or two, or even several
seconds, for your eyes to readjust to the dark. When you
are faced with severe glare (as from a driver who
doesn't lower the high beams, or a vehicle with
misaimed headlamps), slow down a little. Avoid staring
directly into the approaching headlamps.
Keep your windshield and all the glass on your vehicle
clean
-- inside and out. Glare at night is made much
worse by dirt on the glass. Even the inside of the glass
can build up a film caused by dust. Dirty glass makes
lights dazzle and flash more than clean glass would,
making the pupils of your eyes contract repeatedly.
Remember that your headlamps light up far less of a
roadway when you are in a turn or curve. Keep your
eyes moving; that way, it's easier to pick out dimly
lighted objects. Just as your headlamps should be
checked regularly for proper aim, so should your eyes
be examined regularly. Some drivers suffer from night
blindness
-- the inability to see in dim light -- and
aren't even aware of it.

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6-21
Radiator Pressure Cap
NOTICE:
Your radiator cap is a 15 psi (105 kPa)
pressure
-type cap and must be tightly installed to
prevent coolant loss and possible engine damage
from overheating. Be sure the arrows on the cap
line up with the overflow tube on the radiator
filler neck.
When you replace your radiator pressure cap, an
ACDelco
cap is recommended.
Thermostat
Engine coolant temperature is controlled by a thermostat
in the engine coolant system. The thermostat stops the
flow of coolant through the radiator until the coolant
reaches a preset temperature.
When you replace your thermostat, an ACDelco


thermostat is recommended.
Engine Coolant
The cooling system in your vehicle is filled with
DEX
-COOL
engine coolant. This coolant is designed
to remain in your vehicle for 5 years or 150,000 miles
(240 000 km), whichever occurs first, if you add only
DEX
-COOL
extended life coolant.
The following explains your cooling system and how to
add coolant when it is low. If you have a problem with
engine overheating or if you need to add coolant to your
radiator, see ªEngine Overheatingº in the Index.
A 50/50 mixture of clean, drinkable water and
DEX
-COOL
coolant will:

Give freezing protection down to
-34F (-37C).

Give boiling protection up to 265F (129C).

Protect against rust and corrosion.

Help keep the proper engine temperature.

Let the warning lights and gages work as
they should.

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9-6
Instrument Panel 2-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning 6-52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cluster 2-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuse Block 6-59 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Instrument Panel Brightness Control 2-40 . . . . . . . . . . . . . . . .
Interior Lamps 2-40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jack, Tire 5-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jump Starting 5-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Key Lock Cylinders Service 7-15 . . . . . . . . . . . . . . . . . . . . .
Key Reminder Warning 2-14 . . . . . . . . . . . . . . . . . . . . . . . . . .
Keys 2-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Labels
Certification 4-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Parts Identification 6-58 . . . . . . . . . . . . . . . . . . . . .
Tire-Loading Information 4-30 . . . . . . . . . . . . . . . . . . . . . .
Vehicle Identification Number 6-58 . . . . . . . . . . . . . . . . . . .
Lamps
Courtesy 2
-40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dome 2-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interior 2-40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reading, Rearview Mirror 2-42 . . . . . . . . . . . . . . . . . . . . . .
Leaving Your Vehicle 2-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Leaving Your Vehicle with the Engine Running 2-27 . . . . . . .
Lighter 2-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lights
Air Bag Readiness 1
-21, 2-51 . . . . . . . . . . . . . . . . . . . . . . .
Anti-Lock Brake System Warning 2-53, 4-7 . . . . . . . . . . . . Brake System Warning 2
-52 . . . . . . . . . . . . . . . . . . . . . . . . .
Change Oil Soon 2-62 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charging System 2-52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cruise 2-62 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Door/Trunk Ajar Warning 2-63 . . . . . . . . . . . . . . . . . . . . . .
Engine Coolant Temperature Light 2-55 . . . . . . . . . . . . . . .
Enhanced Traction System Active 2-54 . . . . . . . . . . . . . . . .
Enhanced Traction System Warning 2-53 . . . . . . . . . . . . . .
Interior 2-40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low Coolant Warning 2-56, 6-23 . . . . . . . . . . . . . . . . . . . .
Low Fuel 2-64 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low Oil Level 2-61, 6-11 . . . . . . . . . . . . . . . . . . . . . . . . . .
Low Tire 2-57 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low Traction 2-55 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low Washer Fluid Warning 2-35, 2-63 . . . . . . . . . . . . . . . .
Oil Warning 2-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Belt Reminder 1-5, 2-51 . . . . . . . . . . . . . . . . . . . . . .
Security 2-62 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Engine Soon 2-58 . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Vehicle Soon 2-63 . . . . . . . . . . . . . . . . . . . . . . . . . .
Loading Your Vehicle 4-30 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Locks
Cylinders 7
-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Delayed Locking 2-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Door 2-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition Transaxle Lock Check 7-17 . . . . . . . . . . . . . . . . . .
Key Lock Cylinder Service 7-15 . . . . . . . . . . . . . . . . . . . . .
Lockout Protection Feature 2-7 . . . . . . . . . . . . . . . . . . . . . .
Manual Door 2-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Door 2-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Programmable Automatic Power Door 2-5 . . . . . . . . . . . . .

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9-12
Vehicle
Control 4-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Damage Warnings iv. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dimensions 6
-65 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Identification Number 6-58 . . . . . . . . . . . . . . . . . . . . . . . . .
Loading 4-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage 6-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Symbols v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ventilation System 3
-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Visor Vanity Mirrors 2-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Visors, Sun 2-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warning Devices 5-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warning Lights, Gages and Indicators 2-50 . . . . . . . . . . . . . . .
Warranty Information 8-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Washing Your Vehicle 6-53 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Weatherstrip Lubrication 7-15 . . . . . . . . . . . . . . . . . . . . . . . . .
Weatherstrips 6-53 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Wheel
Alignment 6
-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Nut Torque 5-29, 6-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement 6-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Used Replacement 6-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Window Lock 2-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windows 2-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Auto-Down 2-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power 2-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windshield Washer 2-35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid 2-35, 6-26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid Level Check 7-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windshield Wipers 2-34 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Blade Replacement 6-39 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuses 6-59 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Winter Driving 4-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiper Blade Check 7-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiring, Headlamp 6-59 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wrecker Towing 5-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .