
To Use the Coolant Heater
1. Turn off the engine.
2. Open the hood and unwrap the electrical cord.
3. Plug it into a normal, grounded 110-volt AC outlet.
Plugging the cord into an ungrounded outlet
could cause an electrical shock.
Also, the wrong
kind of extension cord could overheat and cause
a fire. You could be seriously injured. Plug the
cord into
a properly grounded three-prong
110-volt
AC outlet. If the cord won’t reach, use a
heavy-duty three-prong extension cord rated for
at least 15 amps.
4. Before starting the engine, be sure to unplug
and store the cord as it was before to keep it away
from moving engine parts. If you don’t, it could
be damaged. How long should
you keep the coolant heater plugged
in? The answer depends on the outside temperature, the
lund
of oil you have, and some other things. Instead of
trying to list everything here, we ask that you contact
your Buick dealer in the area where you’ll be parking
your vehicle. The dealer can give you the best advice
for
that particular area.
Automatic Transaxle Operation
Your automatic transaxle has a shift lever located on the
steering column.
There are several different positions for your shift lever.
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To clean the HUD lens, spray household glass cleaner
on a soft, clean cloth. Gently wipe
and dry the HUD
lens. Do not spray cleaner directly on the lens to avoid
cleaner leaking inside the unit.
If the ignition is on and you can’t see the HUD image,
check to see
if
The headlamps are on.
Something is covering the HUD unit.
The HUD dimmer control is adjusted properly.
The HUD image is adjusted to the proper height.
A fuse is blown. See “Fuses and Circuit Breakers” in
the Index.
Keep in mind that your windshield is part of the HUD
system. If you ever have to have your windshield
replaced, be sure to get one that is designed for HUD or
your HUD image may look blurred or out of focus.
Driver Information Center (DIC)
(If Equipped)
Your Park Avenue may be equipped with a Driver
Information Center (DIC). The DIC will display
information about how your vehicle is functioning,
as well as warning messages if a system problem
is detected. The
following buttons
are
on the DIC control panel
which
is located to the left
of the steering column:
ODOKRIP: Use this button to display your total and
trip miles.
FUEL INFO: Press this button to display fuel
information such as, fuel used, fuel range and fuel
economy.
GAGE INFO: Use this button to display oil pressure,
oil life, coolant temperature, tire pressure and battery
information.
RESET: This button, used along with other buttons,
will reset system functions.
ENGMET: Use this button to change the display
between English and metric units.
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Coolant Temperature: Press the GAGES button until
COOLANT TEMP appears in the display. If there are no
problems detected with the temperature, COOLANT
TEMP NORMAL will appear
in the display. If the
temperature is too high, COOLANT TEMP HOT will
appear in the display. If you see the COOLANT TEMP
HOT message, your engine is overheated. You should
pull off the road, stop your vehicle and turn off your
engine as soon as possible. This manual explains what to
do. See “Engine Overheating” in the Index.
Battery Volts: Press the GAGES button until the
display shows BATTERY STATE.
If the voltage is
normal the display will show BATTERY STATE
NORMAL.
If the voltage drops below 10.5 volts, the
display will show BATTERY STATE LOW. If the
voltage is above
16 volts, the display will show
BATTERY STATE HIGH. If the display shows the high
or low message, you need to have your battery checked.
Oil Life Index: Press the GAGES button until OIL
LIFE INDEX appears in the display. The OIL LIFE
INDEX NORMAL display will show an estimate of
the oil’s remaining useful life. When the oil life index
is less than
lo%, the display will show OIL LIFE INDEX CHANGE
OIL. When you have the oil
changed according to the maintenance schedule (see
“Maintenance Schedule” in the Index), you will have
to reset the oil life index. To do this, press and hold the
RESET button for more than five seconds while the oil
life index is being displayed on the DIC. The oil life
will change to
100%.
Tire Pressure Status: Press the GAGES button
until TIRE PRESSURE appears in the display.
TIRE
PRESSURE NORMAL is displayed when the Check
Tire Pressure System believes your vehicle’s tire
pressures are normal. If a potential tire pressure
problem is detected, the display will show TIRE
PRESSURE LOW: CHECK TIRES.
If you see the
TIRE PRESSURE LOW: CHECK TIRES message, you
should stop as soon as you can and check all your tires
for damage. (If a tire is flat, see “If a Tire Goes Flat”
in
the Index.) Also check the tire pressure in all four tires
as soon as you can. See “Inflation
- Tire Pressure” and
“Check Tire Pressure System”
in the Index.
There are times when you will have to reset (calibrate)
the Check Tire Pressure System. See “Check Tire
Pressure System” in the Index.
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RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS
FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST
SAE VISCOSITY GRADE OIL
FOR THE EXPECTED TEMPERATURE RANGE.
H
WE4
IT
'HER
"F
c1oo-
+ 80 -
+ 60 -
+40-
+ 20 -
0-
I
"(
t3
t2
tl
1.4
-7
-1
COLD
SAE 5W-30
SAE I I 1OW-30
PREFERRED above 0°F I-18"C)
.- e
LOOK
FOR MIS
SYMBOL
WEATHER
DO NOT USE SAE 2OW-50 OR ANY
OTHER GRADE OIL NOT RECOMMENDED
As shown in the chart, SAE 1OW-30 is best for your
vehicle. However,
you can use SAE 5W-30 if it's going
to be colder than
60°F (16°C) before your next oil
change. When
it's very cold, you should use SAE
5W-30. These numbers on an oil container show its
viscosity, or thickness.
Do not use other viscosity oils,
such as
SAE 20W-50.
NOTICE:
Use only engine oil with the American Petroleum
Institute Certified For Gasoline Engines
"Starburst" symbol. Failure to use the
recommended oil can result in engine damage not
covered by your warranty.
GM Goodwrench@ oil meets all the requirements for
your vehicle.
If you are in an area where the temperature falls below
-20°F
(-29"C), consider using either an SAE 5W-30
synthetic oil or an
SAE OW-30 oil. Both will provide
easier cold starting and better protection for your engine
at extremely low temperatures.
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ProCarManuals.com

Engine Oil Additives
Don’t add anything to your oil. Your Buick dealer is
ready
to advise if you think something should be added.
When to Change Engine Oil
If any one of these is true for you, use the short tripkity
maintenance schedule:
e
e
0
0
0
Most trips are less than 5 to 10 miles (8 to 16 km).
This is particularly important when outside
temperatures are below freezing.
Most trips include extensive idling (such as frequent
driving in stop-and-go traffic).
Most trips are through dusty areas.
You frequently tow a trailer or use a carrier on top of
your vehicle.
The vehicle
is used for delivery service, police, taxi
or other commercial application. Driving under these conditions causes engine oil to break
down sooner.
If any one of these is true for your vehicle,
then you need to change your
oil and filter every
3,000 miles (5 000 km) or 3 months -- whichever occurs
first. (See “Change Engine Oil Soon”
in the Index.)
If none of them is true, use the long triphighway
maintenance schedule. Change the oil and filter every
7,500 miles (12 500 km) or 12 months -- whichever
occurs first. Driving a vehicle with a fully warmed
engine under highway conditions causes engine oil to
break down slower.
If the optional CHANGE ENGINE
OIL SOON message
comes on, you will need to change your oil sooner than
either mileage specified. Depending upon driving habits,
the CHANGE ENGINE OIL
SOON message may come
on as early as
2,000 miles or less from the last time the
oil life index was reset. (See “Oil Life Index” in the
Index.)
Always reset the oil life monitor after every
oil change.
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Automatic Transaxle Fluid
When to Check and Change
A good time to check your automatic transaxle fluid
level is when the engine oil is changed.
Change both the fluid and filter every
50,000 miles
(83
000 km) if the vehicle is mainly driven under one or
more of these conditions:
0 In heavy city traffic where the outside temperature
regularly reaches
90°F (32°C) or higher.
0 In hilly or mountainous terrain.
0 When doing frequent trailer towing.
0 Uses such as found in taxi, police or delivery service.
If you
do not use your vehicle under any of these
conditions, the fluid and filter do not require changing.
See “Scheduled Maintenance Services” in the Index.
How to Check
Because this operation can be a little difficult, you may
choose to have this done at your Buick dealership
Service Department.
If you do it yourself, be sure to follow all the instructions
here, or you could get a false reading on the dipstick.
NOTICE:
Too much or too little fluid can damage your
transaxle.
Too much can mean that some of the
fluid could come out and fall on
hot engine parts
or exhaust system parts, starting a fire. Be sure to
get an accurate reading if you check your
1 transaxle fluid.
Wait at least 30 minutes before checking the transaxle
fluid level if you have been driving:
0 When outside temperatures are above 90°F (32°C).
0 At high speed for quite a while.
In heavy traffic -- especially in hot weather.
While pulling a trailer.
To get the right reading, the fluid should be at normal
operating temperature, which is
180°F to 200°F (82°C
to 93°C).
Get the vehicle warmed up by driving about
15 miles
(24 km) when outside temperatures are above 50°F
(10OC).
If it’s colder than 50°F (lO”C), you may have
to drive longer.
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Engine Coolant
The cooling s stem 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.
2
The following explains your cooling system and how
to add coolant when it
is low. If you have a problem
with engine overheating, see “Engine Overheating” in
the Index.
A 50/50 mixture of water and DEX-COOL@
coolant will:
Give freezing protection down to -34°F (-37°C).
Give boiling protection up to 265 OF ( 129 O C).
Protect against rust and corrosion.
0 Help keep the proper engine temperature.
0 Let the warning lights and gages work as
they should.
NOTICE:
When adding coolant, it is important that you use
only
DEX-COOL@ (silicate-free) coolant.
If coolant other than DEX-COOL is added to the
system, premature engine, heater core or
radiator corrosion may result. In addition, the
engine coolant will require change sooner
-- at
30,000 miles (50 000 km) or 24 months,
whichever occurs first. Damage caused by the use
of coolant other than DEX-COOL@ is not.
covered by your new vehicle warranty.
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Maintenance Schedule
I Short Trip/City Definition I ~ ~~
Follow the Short Trip/City Maintenance Schedule if any
one of these conditions is true for your vehicle:
Most trips are less than 5 to 10 miles (8 to 16 km).
This is particularly important when outside
temperatures are below freezing.
Most trips include extensive idling (such as frequent
driving in stop-and-go traffic).
Most trips are through dusty areas.
You frequently tow a trailer or use a carrier on top of
0 If the vehicle is used for delivery service, police, taxi
your vehicle.
or other commercial application.
One of the reasons you should follow this schedule if
you operate
your vehicle under any of these conditions
is that these conditions cause engine oil to break
down soonez
Short Trip/City Intervals
Every 3,000 Miles (5 000 km): Engine Oil and Filter
Every 6,000 Miles (10 000 km): Chassis Lubrication
Change (or
3 months, whichever occurs first).
(or
6 months, whichever occurs first). Tire Rotation.
Every 12,000 Miles (20 000 km): Passenger
Every 15,000 Miles (25 000 km): Air Cleaner Filter
Every 30,000 Miles (50 000 km): Air Cleaner Filter
Compartment Air Filter Replacement.
Inspection,
if driving in dusty conditions.
Replacement. Fuel Tank, Cap and Lines Inspection.
Supercharger Oil Check (or every 36 months,
whichever occurs first) (3.8L Code
1 engine only).
Every 50,000 Miles (83 000 km): Automatic Transaxle
Every 60,000 Miles (100 000 km): Engine Accessory
Every 100,000 Miles (166 000 km): Spark Plug Wire
Service (severe conditions only).
Drive Belt Inspection.
Inspection. Spark Plug Replacement.
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