2005 BUICK PARK AVENUE check engine light

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

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

The vehicle must be on a level surface. When your
engine is cold, the coolant level should be at FULL
COLD or a little higher. When your engine is warm, the
level should be up to FULL HOT or a little higher.
Adding Coolant
If you need more coolant, add the proper DEX-COOL
coolant mixtureat the coolant recovery tank,but
be careful not to spill it.
{CAUTION:
Turning the radiator pressure cap when the
engine and radiator are hot can allow steam
and scalding liquids to blow out and burn you
badly. With the coolant recovery tank, you will
almost never have to add coolant at the
radiator. Never turn the radiator pressure
cap — even a little — when the engine and
radiator are hot.
{CAUTION:
You can be burned if you spill coolant on hot
engine parts. Coolant contains ethylene glycol,
and it will burn if the engine parts are hot
enough. Do not spill coolant on a hot engine.
Occasionally check the coolant level in the radiator. For
information on how to add coolant to the radiator,
seeCooling System on page 5-28.
Radiator Pressure Cap
Notice:The radiator cap on your vehicle is a
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 overow tube on the radiator ller neck.
SeeEngine Compartment Overview on page 5-12for
more information on location.
Engine Overheating
You will nd a warning light about a hot engine as well
as an engine coolant temperature gage on your
vehicle’s instrument panel cluster.
5-26

Audio System(s) (cont.)
Trunk-Mounted CD Changer..........................3-66
Understanding Radio Reception.....................3-72
Automatic Transaxle
Fluid..........................................................5-22
Operation...................................................2-26
B
Battery..........................................................5-40
Run-Down Protection...................................3-19
Battery Warning Light......................................3-37
Before Leaving on a Long Trip.........................4-22
Brake
Anti-Lock Brake System (ABS)........................ 4-7
Emergencies................................................ 4-9
Parking......................................................2-29
System Inspection.......................................6-24
System Warning Light..................................3-38
Brakes..........................................................5-37
Braking........................................................... 4-6
Braking in Emergencies..................................... 4-9
Break-In, New Vehicle.....................................2-22
Bulb Replacement...........................................5-47
Front Turn Signal Lamps..............................5-50
Halogen Bulbs............................................5-47
Headlamp Aiming........................................5-45
Headlamps.................................................5-47Bulb Replacement (cont.)
Rear Quarter Panel Turn Signal and
Stoplamps...............................................5-54
Rear Turn Signal, Stoplamps and
Back-Up Lamps.......................................5-50
Replacement Bulbs......................................5-56
Buying New Tires...........................................5-68C
California Fuel.................................................. 5-5
Canadian Owners................................................ ii
Capacities and Specications..........................5-100
Carbon Monoxide...................2-14, 2-32, 4-25, 4-37
Care of
Safety Belts................................................5-86
Your Cassette Tape Player............................3-73
Your CD Player...........................................3-74
Your CDs ...................................................3-74
CD Changer, Trunk-Mounted............................3-66
Center Console Storage Area...........................2-46
Center Passenger Position, Safety Belts.............1-19
Chains, Tire...................................................5-72
Check
Engine Light...............................................3-40
Tire Pressure System...................................5-65
Checking Things Under the Hood......................5-10
Chemical Paint Spotting...................................5-89
2

E
Electrical System
Add-On Equipment......................................5-91
Auxiliary Instrument Panel Fuse Block............5-94
Fuses and Circuit Breakers...........................5-92
Main Instrument Panel Fuse Block.................5-92
Rear Compartment Fuse Block......................5-97
Underhood Fuse Block.................................5-95
Engine
Air Cleaner/Filter.........................................5-19
Battery.......................................................5-40
Check and Service Engine Soon Light............3-40
Coolant......................................................5-24
Coolant Heater............................................2-25
Coolant Temperature Gage...........................3-40
Cooling System Inspection............................6-24
Drive Belt Routing......................................5-102
Engine Compartment Overview......................5-12
Exhaust.....................................................2-32
Oil .............................................................5-13
Overheating................................................5-26
Starting......................................................2-24
Supercharger Oil.........................................5-18
Entry Lighting.................................................3-16
Event Data Recorders (EDR)............................. 7-9
Extender, Safety Belt.......................................1-26
Exterior Lamps...............................................3-14
F
Filter
Engine Air Cleaner......................................5-19
Finish Damage...............................................5-89
Flash-to-Pass................................................... 3-9
Flat Tire........................................................5-73
Flat Tire, Changing.........................................5-74
Flat Tire, Storing.............................................5-80
Fluid
Automatic Transaxle.....................................5-22
Power Steering...........................................5-34
Windshield Washer......................................5-35
Front Reading Lamps......................................3-18
Fuel............................................................... 5-4
Additives...................................................... 5-5
California Fuel.............................................. 5-5
Filling a Portable Fuel Container..................... 5-9
Filling Your Tank........................................... 5-6
Fuels in Foreign Countries.............................. 5-6
Gage.........................................................3-45
Gasoline Octane........................................... 5-4
Gasoline Specications.................................. 5-5
System Inspection.......................................6-23
5

Light (cont.)
Service Vehicle Soon...................................3-44
TCS Warning Light......................................3-39
Traction Control System (TCS) Warning..........3-39
Lighting
Delayed Entry.............................................3-17
Delayed Exit...............................................3-17
Entry.........................................................3-16
Parade Dimming..........................................3-18
Perimeter...................................................3-17
Theater Dimming.........................................3-17
Lockout Protection..........................................2-13
Locks
Central Door Unlocking System.....................2-10
Delayed Locking..........................................2-11
Door........................................................... 2-9
Leaving Your Vehicle....................................2-13
Lockout Protection.......................................2-13
Power Door................................................2-10
Programmable Automatic Door Locks.............2-11
Rear Door Security Locks.............................2-13
Long Trip/Highway Scheduled Maintenance........6-13
Loss of Control...............................................4-14
Lumbar
Power Controls............................................. 1-3M
Maintenance, Normal Replacement Parts..........5-101
Maintenance Schedule
At Each Fuel Fill.........................................6-19
At Least Once a Month................................6-19
At Least Once a Year..................................6-20
At Least Twice a Year..................................6-20
Brake System Inspection..............................6-24
Engine Cooling System Inspection.................6-24
Exhaust System Inspection...........................6-23
Fuel System Inspection................................6-23
How This Section is Organized....................... 6-3
Introduction.................................................. 6-2
Long Trip/Highway Scheduled Maintenance.....6-13
Maintenance Requirements............................. 6-2
Part A - Scheduled Maintenance Services......... 6-4
Part B - Owner Checks and Services.............6-19
Part C - Periodic Maintenance Inspections......6-23
Part D - Recommended Fluids
and Lubricants.........................................6-25
Part E - Maintenance Record........................6-27
Selecting the Right Schedule.......................... 6-5
Short Trip/City Scheduled Maintenance............. 6-6
Steering, Suspension and Front Drive Axle
Boot and Seal Inspection..........................6-23
Throttle System Inspection............................6-24
Using Your................................................... 6-4
Your Vehicle and the Environment................... 6-2
8

Rearview Mirrors.............................................2-34
Reclining Seatbacks.......................................... 1-4
Recreational Vehicle Towing.............................4-35
Remote Keyless Entry System............................ 2-5
Remote Keyless Entry System, Operation............ 2-6
Removing the Flat Tire and Installing
the Spare Tire.............................................5-76
Removing the Spare Tire and Tools...................5-75
Replacement Bulbs.........................................5-56
Reporting Safety Defects
Canadian Government..................................7-11
General Motors...........................................7-11
United States Government............................7-10
Restraint System Check
Checking Your Restraint Systems...................1-57
Replacing Restraint System Parts
After a Crash..........................................1-58
Restraint Systems
Checking....................................................1-57
Replacing Parts...........................................1-58
Retained Accessory Power (RAP)......................2-23
Right Front Passenger Position, Safety Belts......1-19
Roadside
Assistance Program....................................... 7-6
Rocking Your Vehicle to Get it Out....................4-30
Routing, Engine Drive Belt..............................5-102
Running Your Engine While You Are Parked.......2-33S
Safety Belt
Reminder Light............................................3-36
Safety Belts
Care of......................................................5-86
Center Passenger Position............................1-19
Driver Position............................................1-12
How to Wear Safety Belts Properly................1-11
Questions and Answers About Safety Belts.....1-10
Rear Safety Belt Comfort Guides for Children
and Small Adults......................................1-24
Rear Seat Passengers.................................1-20
Right Front Passenger Position......................1-19
Safety Belt Extender....................................1-26
Safety Belt Use During Pregnancy.................1-18
Safety Belts Are for Everyone......................... 1-6
Safety Warnings and Symbols.............................. iii
Seats
Head Restraints............................................ 1-5
Heated Seats............................................... 1-3
Memory.....................................................2-48
Power Lumbar.............................................. 1-3
Power Seats................................................. 1-2
Reclining Seatbacks...................................... 1-4
11