engine oil BUICK LUCERNE 2009 Owner's Guide

(e)Make sure the safety belt reminder light and safety
belt assemblies are working properly. Look for any other
loose or damaged safety belt system parts. If you see
anything that might keep a safety belt system from doing
its job, have it repaired. Have any torn or frayed safety
belts replaced. Also see Checking the Restraint Systems
on page 1-74.
(f)Lubricate all key lock cylinders. Lubricate all
hinges and latches, including those for the hood, rear
compartment, glove box door, and console door. More
frequent lubrication may be required when exposed to
a corrosive environment. Applying silicone grease on
weatherstrips with a clean cloth will make them last
longer, seal better, and not stick or squeak.
(g)If driving regularly under dusty conditions, the filter
may require replacement more often.
(h)Change automatic transmission fluid and filter if the
vehicle is mainly driven under one or more of these
conditions:
In heavy city traffic where the outside temperature
regularly reaches 90°F (32°C) or higher.
In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such as found in taxi, police, or delivery
service.(j)Drain, flush, and refill cooling system. This service
can be complex; you should have your dealer/retailer
perform this service. See Engine Coolant (4.6L Engine)
on page 5-28 or Engine Coolant (3.9L Engine) on
page 5-32 for what to use. Inspect hoses. Clean
radiator, condenser, pressure cap, and filler neck.
Pressure test the cooling system and pressure cap.
(k)A fluid loss in any vehicle system could indicate a
problem. Have the system inspected and repaired
and the fluid level checked. Add fluid if needed.
(l)Visually inspect belt for fraying, excessive cracks, or
obvious damage. Replace belt if necessary.
(m)If driving regularly under dusty conditions, inspect
the filter at each engine oil change.
Owner Checks and Services
These owner checks and services should be performed
at the intervals specied to help ensure vehicle safety,
dependability, and emission control performance. Your
dealer/retailer can assist with these checks and services.
Be sure any necessary repairs are completed at once.
Whenever any uids or lubricants are added to the
vehicle, make sure they are the proper ones, as shown
inRecommended Fluids and Lubricants on page 6-12.
6-8

At Each Fuel Fill
It is important to perform these underhood checks at
each fuel fill.
Engine Oil Level Check
Notice:It is important to check the engine oil
regularly and keep it at the proper level. Failure to
keep the engine oil at the proper level can cause
damage to the engine not covered by the vehicle
warranty.
Check the engine oil level and add the proper oil if
necessary. SeeEngine Oil on page 5-17.
Engine Coolant Level Check
Check the engine coolant level and add DEX-COOL®
coolant mixture if necessary. SeeEngine Coolant
(4.6L Engine) on page 5-28orEngine Coolant
(3.9L Engine) on page 5-32.
Windshield Washer Fluid Level Check
Check the windshield washer uid level in the windshield
washer uid reservoir and add the proper uid if
necessary.
At Least Once a Month
Tire Ination Check
Inspect the vehicle’s tires and make sure they are
inated to the correct pressures. Do not forget to check
the spare tire. SeeInflation - Tire Pressure on page 5-66.
Check to make sure the spare tire is stored securely.
SeeChanging a Flat Tire on page 5-82.
Tire Wear Inspection
Tire rotation may be required for high mileage highway
drivers prior to the Engine Oil Life System service
notication. Check the tires for wear and, if necessary,
rotate the tires. SeeTire Inspection and Rotation on
page 5-72.
6-9

Recommended Fluids and
Lubricants
Fluids and lubricants identied below by name, part
number, or specication can be obtained from your
dealer/retailer.
Usage Fluid/Lubricant
Engine OilEngine oil which meets GM
Standard GM6094M and displays
the American Petroleum Institute
Certied for Gasoline Engines
starburst symbol. To determine the
proper viscosity for your vehicle’s
engine, seeEngine Oil on page 5-17.
Engine Coolant50/50 mixture of clean, drinkable
water and use only DEX-COOL
®
Coolant. SeeEngine Coolant
(4.6L Engine) on page 5-28or
Engine Coolant (3.9L Engine)
on page 5-32.
Hydraulic Brake
SystemDelco
®Supreme 11 Brake Fluid or
equivalent DOT-3 brake uid.
Windshield
WasherOptikleen
®Washer Solvent.
Usage Fluid/Lubricant
Parking Brake
Cable GuidesChassis Lubricant
(GM Part No. U.S. 12377985, in
Canada 88901242) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.
Power Steering
SystemGM Power Steering Fluid
(GM Part No. U.S. 89021184,
in Canada 89021186).
Automatic
TransmissionDEXRON
®-VI Automatic
Transmission Fluid.
Key Lock
CylindersMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241,
in Canada 10953474).
Hood Latch
Assembly,
Secondary
Latch, Pivots,
Spring Anchor,
and Release
PawlLubriplate Lubricant Aerosol
(GM Part No. U.S. 12346293,
in Canada 992723) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.
Hood and Door
HingesMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241,
in Canada 10953474).
Weatherstrip
ConditioningWeatherstrip Lubricant
(GM Part No. U.S. 3634770,
in Canada 10953518) or
Dielectric Silicone Grease
(GM Part No. U.S. 12345579,
in Canada 992887).
6-12

Maintenance Replacement Parts
Replacement parts identied below by name, part number, or specication can be obtained from your dealer/retailer.
Maintenance Replacement Parts
Part GM Part Number ACDelco Part Number
Engine Air Cleaner/Filter 22676970 A1627C
Engine Oil Filter
3.9L V6 Engine 89017342 PF61
4.6L V8 Engine 89017342 PF61
Passenger Compartment Air Filter 15811562 CF138
Spark Plugs
3.9L V6 12591131 41-100
4.6L V8 12571535 41-987
Wiper Blades
Driver Side – 23.6 in (60.0 cm) 15788731 —
Passenger Side – 20.8 in (53.0 cm) 15788730 —
6-13

Electronic Immobilizer Operation
PASS-Key®III+...........................................2-19
Engine
Air Cleaner/Filter.........................................5-22
Check and Service Engine Soon Lamp...........3-43
Coolant..............................................5-28, 5-32
Coolant Heater............................................2-24
Coolant Temperature Gage...........................3-42
Coolant Temperature Warning Light................3-42
Drive Belt Routing.......................................6-14
Engine Compartment Overview......................5-14
Exhaust.....................................................2-32
Oil .............................................................5-17
Oil Life System...........................................5-20
Overheated Protection Operating Mode...........5-37
Overheating................................................5-35
Starting......................................................2-22
Entry Lighting.................................................3-18
Event Data Recorders.....................................7-17
Extender, Safety Belt.......................................1-34
Exterior Lamps...............................................3-15
Exterior Lighting Battery Saver..........................3-17
F
Filter
Engine Air Cleaner......................................5-22
Finish Damage...............................................5-99
Flashers, Hazard Warning.................................. 3-6Flash-to-Pass................................................... 3-9
Flat Tire........................................................5-81
Flat Tire, Changing.........................................5-82
Flat Tire, Storing.............................................5-89
Fluid
Automatic Transmission................................5-23
Power Steering...........................................5-38
Windshield Washer......................................5-39
Fog Lamp
Fog ...........................................................3-17
Fog Lamp Light..............................................3-47
Front Reading Lamps......................................3-18
Front Storage Area.........................................2-57
Fuel............................................................... 5-5
Additives...................................................... 5-7
California Fuel.............................................. 5-6
Driving for Better Economy............................. 4-2
E85 (85% Ethanol)........................................ 5-8
Filling a Portable Fuel Container....................5-12
Filling the Tank...........................................5-10
Fuels in Foreign Countries.............................. 5-9
Gage .........................................................3-48
Gasoline Octane........................................... 5-6
Gasoline Specications.................................. 5-6
Fuses
Fuses and Circuit Breakers.........................5-101
Rear Underseat Fuse Block.........................5-104
Underhood Fuse Block...............................5-101
5

J
Jump Starting.................................................5-46
K
Keyless Entry System....................................... 2-4
Keys............................................................... 2-3
L
Labeling, Tire Sidewall.....................................5-60
Lamp
Malfunction Indicator....................................3-43
Lamps
Cornering...................................................3-17
Courtesy....................................................3-18
Exterior Lighting Battery Saver......................3-17
Front Reading.............................................3-18
Inadvertent Power Battery Saver....................3-19
Lane Departure Warning..................................2-44
Lane Departure Warning Light..........................3-41
Lap Belt........................................................1-33
Lap-Shoulder Belt...........................................1-27
LATCH System for Child Restraints...................1-45
License Plate Lamps.......................................5-57Light
Airbag Readiness........................................3-36
Antilock Brake System (ABS) Warning............3-39
Brake System Warning.................................3-38
Charging System.........................................3-38
Cruise Control.............................................3-47
Engine Coolant Temperature Warning.............3-42
Fog Lamp ..................................................3-47
Highbeam On.............................................3-47
Lane Departure Warning...............................3-41
Oil Pressure...............................................3-46
Passenger Airbag Status Indicator..................3-37
Safety Belt Reminders..................................3-35
Security.....................................................3-46
StabiliTrak
®Indicator....................................3-41
TCS Warning Light......................................3-40
Tire Pressure..............................................3-43
Traction Control System (TCS) Warning..........3-40
Lighting
Delayed Entry.............................................3-18
Delayed Exit...............................................3-18
Entry.........................................................3-18
Perimeter...................................................3-18
Theater Dimming.........................................3-18
Lights
Exterior Lamps............................................3-15
Flash-to-Pass............................................... 3-9
7

N
Navigation System, Privacy..............................7-18
Navigation/Radio System,
see Navigation Manual.................................3-93
New Vehicle Break-In......................................2-20
O
Odometer......................................................3-34
Odometer, Trip...............................................3-34
Off-Road Recovery..........................................4-10
Oil
Engine.......................................................5-17
Pressure Light.............................................3-46
Oil, Engine Oil Life System..............................5-20
Older Children, Restraints................................1-35
Online Owner Center........................................ 7-5
OnStar, Privacy..............................................7-18
OnStar
®System, see OnStar®Manual...............2-46
Operation, Universal Home Remote System........2-50
Outlet Adjustment............................................3-30
Outlets
Accessory Power.........................................3-20
Outside
Automatic Dimming Mirror.............................2-36
Convex Mirror.............................................2-37
Heated Mirrors............................................2-37
Power Mirrors.............................................2-36Overheated Engine Protection Operating Mode....5-37
Owner Checks and Services.............................. 6-8
Owners, Canadian............................................... ii
P
Paint, Damage...............................................5-99
Park
Shifting Into................................................2-28
Shifting Out of............................................2-31
Park Aid........................................................2-38
Park Brake....................................................2-27
Park Tilt Mirrors..............................................2-37
Parking
Assist........................................................2-38
Over Things That Burn.................................2-31
Passenger Airbag Status Indicator.....................3-37
Passenger Compartment Air Filter.....................3-30
Passenger Sensing System..............................1-67
Passing.........................................................4-10
PASS-Key
®III+ Electronic Immobilizer...............2-18
PASS-Key®III+ Electronic Immobilizer
Operation...................................................2-19
Perchlorate Materials Requirements, California...... 5-4
Perimeter Lighting...........................................3-18
Phone
Bluetooth
®..................................................3-93
9