2009 BUICK LACROSSE oil change

(i)Drain, flush, and refill cooling system. This service
can be complex; you should have your dealer/retailer
perform this service. See Engine Coolant on page 5-25
for what to use. Inspect hoses. Clean radiator,
condenser, pressure cap, and filler neck. Pressure test
the cooling system and pressure cap.
(j)Check throttle system for interference or binding
and for damaged or missing parts. Replace parts
as needed. Replace any components that have high
effort or excessive wear. Do not lubricate accelerator or
cruise control cables.
(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)If driving regularly under dusty conditions, inspect the
filter at each engine oil change.
(m)Visually inspect belt for fraying, excessive cracks, or
obvious damage. Replace belt if necessary.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 6-11.
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 5-15.
6-8

Electrical System (cont.)
Underhood Fuse Block...............................5-101
Windshield Wiper Fuses...............................5-99
Electronic Immobilizer
PASS-Key
®III+...........................................2-18
Electronic Immobilizer Operation
PASS-Key
®III .............................................2-19
Engine
Air Cleaner/Filter.........................................5-20
Change Engine Oil Light...............................3-43
Check and Service Engine Soon Lamp...........3-40
Coolant......................................................5-25
Coolant Heater............................................2-24
Coolant Temperature Gage...........................3-38
Coolant Temperature Warning Light................3-38
Drive Belt Routing.......................................6-14
Engine Compartment Overview......................5-12
Exhaust.....................................................2-33
Oil .............................................................5-15
Oil Life System...........................................5-18
Overheated Protection Operating Mode...........5-34
Overheating................................................5-31
Reduced Power Light...................................3-44
Starting......................................................2-23
Enhanced Traction System (ETS)........................ 4-8
Warning Light.............................................3-37
Entry Lighting.................................................3-16Event Data Recorders.....................................7-17
Extender, Safety Belt.......................................1-29
Exterior Lamps...............................................3-13
Exterior Lighting Battery Saver..........................3-15F
Filter
Engine Air Cleaner......................................5-20
Finish Damage...............................................5-97
Flashers, Hazard Warning.................................. 3-6
Flash-to-Pass................................................... 3-8
Flat Tire........................................................5-76
Flat Tire, Changing.........................................5-76
Flat Tire, Storing.....................................5-84, 5-87
Fluid
Automatic Transmission................................5-22
Power Steering...........................................5-34
Windshield Washer......................................5-35
Fog Lamp
Fog ...........................................................3-15
Folding Rear Seat............................................ 1-7
Fuel............................................................... 5-5
Additives...................................................... 5-7
California Fuel.............................................. 5-6
Check Gas Cap Light...................................3-47
Driving for Better Economy............................. 4-2
5

I
Ignition Positions.............................................2-21
Infants and Young Children, Restraints...............1-33
Ination - Tire Pressure...................................5-61
Instrument Panel
Brightness..................................................3-16
Cluster.......................................................3-31
Overview..................................................... 3-4
Interior Lamps................................................3-16
J
Jump Starting.................................................5-41
K
Keyless Entry System....................................... 2-3
Keys............................................................... 2-2
L
Labeling, Tire Sidewall.....................................5-55
Lamp
Malfunction Indicator....................................3-40
Lamps
Courtesy....................................................3-16
Exterior Lighting Battery Saver......................3-15
Overhead Console Reading..........................3-18
Rear Assist Handle Reading..........................3-18Lap Belt........................................................1-28
Lap-Shoulder Belt...........................................1-22
LATCH System for Child Restraints...................1-41
License Plate Lamps.......................................5-52
Light
Airbag Readiness........................................3-33
Antilock Brake System (ABS) Warning............3-36
Brake System Warning.................................3-35
Change Engine Oil......................................3-43
Charging System.........................................3-35
Check Gas Cap..........................................3-47
Cruise Control.............................................3-43
Door Ajar...................................................3-45
Engine Coolant Temperature Warning.............3-38
Enhanced Traction System (ETS)
Warning Light..........................................3-37
Headlamps Suggested.................................3-44
Highbeam On.............................................3-44
Low Coolant Warning...................................3-39
Low Fuel Warning.......................................3-47
Low Washer Fluid Warning...........................3-45
Oil Pressure...............................................3-42
Passenger Airbag Status Indicator..................3-34
Reduced Engine Power................................3-44
Safety Belt Reminders..................................3-32
Security.....................................................3-43
Service Vehicle Soon...................................3-45
TCS Warning Light......................................3-37
7

Mirrors
Automatic Dimming Rearview........................2-35
Manual Rearview Mirror................................2-35
Outside Convex Mirror.................................2-36
Outside Heated Mirrors................................2-36
Outside Power Mirrors..................................2-36
MP3 .............................................................3-95
MyGMLink.com................................................ 7-5
N
Navigation System, Privacy..............................7-18
New Vehicle Break-In......................................2-21
O
Odometer......................................................3-32
Off-Road Recovery..........................................4-11
Oil
Change Engine Oil Light...............................3-43
Engine.......................................................5-15
Pressure Light.............................................3-42
Oil, Engine Oil Life System..............................5-18
Older Children, Restraints................................1-29
Online Owner Center........................................ 7-5OnStar, Privacy..............................................7-18
OnStar
®System, see OnStar®Manual...............2-39
Operation, Universal Home Remote System........2-43
Outlet Adjustment............................................3-28
Outlets
Accessory Power.........................................3-20
Outside
Convex Mirror.............................................2-36
Heated Mirrors............................................2-36
Power Mirrors.............................................2-36
Overhead Console Reading Lamps....................3-18
Overheated Engine Protection
Operating Mode..........................................5-34
Owner Checks and Services.............................. 6-8
Owners, Canadian............................................... ii
P
Paint, Damage...............................................5-97
Park
Shifting Into................................................2-29
Shifting Out of............................................2-32
Park Aid........................................................2-37
Park Brake....................................................2-29
Parking
Assist........................................................2-37
Over Things That Burn.................................2-33
9