2005 BUICK PARK AVENUE heating

Power Lumbar
If your vehicle has this
feature, the power lumbar
control is located on
the outboard side of each
front seat. Use the
power seat control rst to
get the proper position.
Then continue with
the lumbar adjustment.
To reshape the lower seatback, press the lumbar
control forward to increase support and rearward to
decrease support. Press the control up or down to raise
or lower the support mechanism.
Keep in mind that as your seating position changes, as
it may during long trips, so should the position of
your lumbar support. Adjust the seat as needed.
If you have the independent front cushion moved down
as far as it will go, you may feel the lumbar support
higher in your back. Readjust the location of the cushion
until you are comfortable. You may also want to
adjust the seatback for maximum comfort.
Heated Seats
If your vehicle has this option, press this button to turn
on the heating element in the seat.
The heated seat controls
are located next to the
climate controls on
the instrument panel.
When the heated seat control is rst pressed, the high
setting is activated. Press the button again for the
low setting. The third press of the button turns the
feature off.
The low setting warms the seatback and cushion until
the seat nears body temperature. The high setting heats
the seat to a slightly higher temperature.
A light on the control reminds you that the heating
system is in use. When the ignition is turned off, the
heating element is also turned off.
1-3

Trunk
{CAUTION:
It can be dangerous to drive with the trunk lid
open because carbon monoxide (CO) gas can
come into your vehicle. You can not see or
smell CO. It can cause unconsciousness and
even death. If you must drive with the trunk lid
open or if electrical wiring or other cable
connections must pass through the seal
between the body and the trunk lid:
Make sure all other windows are shut.
Turn the fan on your heating or cooling
system to its highest speed and select the
control setting that will force outside air
into your vehicle. See Climate Control
System in the Index.
If you have air outlets on or under the
instrument panel, open them all the way.
SeeEngine Exhaust on page 2-32.
Trunk Lock Release
To unlock the trunk from the outside, insert the master
key and turn it.
Remote Trunk Release
Press the TRUNK button located to the left of the
steering column to release the trunk lid.
The trunk will open if the transaxle is in PARK (P) or
NEUTRAL (N) and the trunk release lockout is in
the unlocked position.
The remote keyless entry system will also unlock your
trunk if the ignition is OFF, or if the ignition is on and the
transaxle is in PARK (P).
2-14

Ashtrays and Cigarette Lighter
The front ashtray is located under the climate control
panel on the center console. Press on the door to
release the ashtray. To close, press on the door again.
To empty the ashtray, remove it from the center
console by gripping the edges and pulling straight out.
To reinstall, push the tray back into place.
The rear ashtrays are located on each rear door panel.
To remove a rear ashtray, open the lid and ease the
ashtray upward until the edge can be grasped to pull the
ashtray up and out.
Notice:If you put papers or other ammable items
in the ashtray, hot cigarettes or other smoking
materials could ignite them and possibly damage
your vehicle. Never put ammable items in
the ashtray.
There is a cigarette lighter near the front ashtray. To
use it, push it in all the way and let go. When it’s ready,
it will pop back out by itself.
Notice:Holding a cigarette lighter in while it is
heating will not allow the lighter to back away from
the heating element when it is hot. Damage from
overheating may occur to the lighter or heating
element, or a fuse could be blown. Do not hold a
cigarette lighter in while it is heating.
Climate Controls
Dual Automatic Climate
Control System
With this system you can control the heating, cooling
and ventilation for your vehicle.
3-25

ODO/TRIP (Odometer/Trip)
When this button is pressed, the display will show the
total mileage, and TRIP 1 or TRIP 2 miles. TRIP 1
and TRIP 2 will display the miles traveled since the last
reset. To reset the trip odometer, press the ODO/TRIP
button until the trip miles are shown in the DIC
display, then press the RESET button. The trip odometer
will now accumulate miles until the next reset.
FUEL INFO (Information)
Fuel Used:Press the FUEL INFO button until the
display shows FUEL USED. This display will show you
how much fuel has been used since the last reset.
To learn how much fuel is used from a new starting
point, press the RESET button while the fuel used
is displayed in the DIC.
Fuel Range:Press the FUEL INFO button until the
display shows FUEL RANGE. The fuel range will
calculate the remaining distance you can drive without
refueling. This calculation is based on the average
fuel economy for the last 25 miles (40.25 km) driven,
and the fuel remaining in the fuel tank. The RESET
button does not function in this mode.Instantaneous Fuel Economy:Press the FUEL
INFO button until the display shows FUEL ECONOMY
INST. Instantaneous fuel economy is the current fuel
economy that the vehicle has right now. Instantaneous
fuel economy varies with your driving conditions, such
as acceleration, braking and the grade of the road
being traveled. The RESET button does not function in
this mode.
Average Fuel Economy:Press the FUEL INFO button
until the display shows FUEL ECONOMY AVERAGE.
Average fuel economy is the long term approximation of
your overall driving conditions. To learn the average
fuel economy from a new starting point, press the
RESET button while the average fuel economy is
displayed in the DIC.
GAGE INFO (Information)
Coolant Temperature:Press the GAGE INFO 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. SeeEngine Overheating on
page 5-26.
3-47

When towing a trailer, the arrows on your instrument
panel will ash for turns even if the bulbs on the trailer
are burned out. Thus, you may think drivers behind
you are seeing your signal when they are not. It
is important to check occasionally to be sure the trailer
bulbs are still working.
Your vehicle has bulb warning lights. When you plug a
trailer lighting system into your vehicle’s lighting
system, its bulb warning lights may not let you know if
one of your lamps goes out. So, when you have a trailer
lighting system plugged in, be sure to check your
vehicle and trailer lamps from time to time to be sure
they are all working. Once you disconnect the trailer
lamps, the bulb warning lights again can tell you if one
of your vehicle lamps is out.
Driving On Grades
Reduce speed and shift to a lower gearbeforeyou start
down a long or steep downgrade. If you do not shift
down, you might have to use your brakes so much that
they would get hot and no longer work well.
On a long uphill grade, shift to THIRD (3) and reduce
your speed to around 45 mph (70 km/h) to reduce
the possibility of engine and transaxle overheating.
Parking on Hills
{CAUTION:
You really should not park your vehicle, with a
trailer attached, on a hill. If something goes
wrong, your rig could start to move. People
can be injured, and both your vehicle and the
trailer can be damaged.
But if you ever have to park your rig on a hill, here is
how to do it:
1. Apply your regular brakes, but do not shift into
PARK (P) yet.
2. Have someone place chocks behind the
trailer wheels.
3. When the wheel chocks are in place, release the
regular brakes until the chocks absorb the load.
4. Reapply the regular brakes. Then apply your
parking brake, and then shift to PARK (P).
5. Release the regular brakes.
4-42

When You Are Ready to Leave After
Parking on a Hill
1. Apply your regular brakes and hold the pedal down
while you:
Start your engine.
Shift into a gear.
Release the parking brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear of the chocks.
4. Stop and have someone pick up and store
the chocks.
Maintenance When Trailer Towing
Your vehicle will need service more often when you are
pulling a trailer. See the Maintenance Schedule for
more on this. Things that are especially important in
trailer operation are automatic transaxle uid (do
not overll), engine oil, drive belt, cooling system and
brake system. Each of these is covered in this manual,
and the Index will help you nd them quickly. If you
are trailering, it is a good idea to review this information
before you start your trip.
Check periodically to see that all hitch nuts and bolts
are tight.
Engine Cooling When Trailer Towing
Your cooling system may temporarily overheat during
severe operating conditions. SeeEngine Overheating on
page 5-26.
4-43

Service............................................................5-3
Doing Your Own Service Work.........................5-3
Adding Equipment to the Outside of
Your Vehicle..............................................5-4
Fuel................................................................5-4
Gasoline Octane............................................5-4
Gasoline Specications....................................5-5
California Fuel...............................................5-5
Additives.......................................................5-5
Fuels in Foreign Countries...............................5-6
Filling Your Tank............................................5-6
Filling a Portable Fuel Container.......................5-9
Checking Things Under the Hood....................5-10
Hood Release..............................................5-10
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-13
Engine Oil Life System..................................5-17
Supercharger Oil..........................................5-18
Engine Air Cleaner/Filter................................5-19
Automatic Transaxle Fluid..............................5-22
Engine Coolant.............................................5-24
Radiator Pressure Cap..................................5-26
Engine Overheating.......................................5-26
Cooling System............................................5-28
Power Steering Fluid.....................................5-34Windshield Washer Fluid................................5-35
Brakes........................................................5-37
Battery........................................................5-40
Jump Starting...............................................5-41
Headlamp Aiming...........................................5-45
Bulb Replacement..........................................5-47
Halogen Bulbs..............................................5-47
Headlamps..................................................5-47
Front Turn Signal Lamps...............................5-50
Rear Turn Signal, Stoplamps and
Back-Up Lamps........................................5-50
Rear Quarter Panel Turn Signal
and Stoplamps..........................................5-54
Replacement Bulbs.......................................5-56
Windshield Wiper Blade Replacement..............5-57
Tires..............................................................5-58
Tire Sidewall Labelling...................................5-59
Tire Terminology and Denitions.....................5-61
Ination - Tire Pressure.................................5-64
Check Tire Pressure System..........................5-65
Tire Inspection and Rotation...........................5-67
When It Is Time for New Tires.......................5-68
Buying New Tires.........................................5-68
Uniform Tire Quality Grading..........................5-69
Section 5 Service and Appearance Care
5-1

How to Add Fluid
Refer to the Maintenance Schedule to determine what
kind of transaxle uid to use. SeePart D:
Recommended Fluids and Lubricants on page 6-25.
If the uid level is low, add only enough of the proper
uid to bring the level into the cross-hatched area on
the dipstick.
1. Pull out the dipstick.
2. Using a long-neck funnel, add enough uid at the
dipstick hole to bring it to the proper level.
It does not take much uid, generally less than
one pint (0.5 L).Do not overll.
Notice:Use of automatic transaxle uid labeled
other than DEXRON
®-III, Approved for the
H-Specication, may damage your vehicle, and the
damages may not be covered by your warranty.
Always use automatic transaxle uid labeled
DEXRON
®-III, Approved for the H-Specication.
3. After adding uid, recheck the uid level as
described under “How to Check,” earlier in
this section.
4. When the correct uid level is obtained, push the
dipstick back in all the way.
Engine Coolant
The cooling system in your vehicle is lled 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 rst, 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, seeEngine Overheating on
page 5-26.
A 50/50 mixture of clean, drinkable water and
DEX-COOL
®will:
Give freezing protection down to−34°F (−37°C).
Give boiling protection up to 265°F (129°C).
Protect against rust and corrosion.
Help keep the proper engine temperature.
Let the warning lights and gages work as
they should.
Notice:Using coolant other than DEX-COOL
®may
cause premature engine, heater core or radiator
corrosion. In addition, the engine coolant may
require changing sooner, at 30,000 miles (50 000 km)
or 24 months, whichever occurs rst. Any repairs
would not be covered by your warranty. Always use
DEX-COOL
®(silicate-free) coolant in your vehicle.
5-24