2005 BUICK LACROSSE Transmission

Underhood Fuse Block
Some fuses and relays are located in the underhood
fuse block on the passenger’s side of the vehicle in the
engine compartment. SeeEngine Compartment
Overview on page 5-12for more information on location.
Mini-Fuses Usage
1 Left High Beam
2 Right High Beam
Mini-Fuses Usage
3 Left Low Beam
4 Right Low Beam
5 Windshield Wiper
6 Washer/Regulated Voltage Control
7 Fog Lamps
8 Transaxle Control Module
9 Supplemental Inatable Restraint
10 Auxiliary Power
11 Horn
12 Emission
13 Air Conditioner Clutch
14 Oxygen Sensor
15 Powertrain Control Module
16Powetrain Control Module,
Electronic Throttle Control
17 Electronic Throttle Control
18 Display
19 Anti-lock Brake Solenoid
20 Fuel Injector
21 Transmission Solenoid
22 Fuel Pump
23 Anti-lock Brake System
24 Ignition
5-90

Capacities and Specications
The following approximate capacities are given in English and metric conversions.
Capacities and Specications
ApplicationCapacities
English Metric
Air Conditioning Refrigerant R134a 2.31 lbs 1.05 kg
Automatic Transmission 7.4 qt 7.0 L
Cooling System Including Reservoir
3.6L V6
3.8L V611.0 qt
11.7 qt10.4 L
11.0 L
Engine Oil with Filter
3.6L V6
3.8L V65.5 quarts
4.5 quarts5.2 L
4.3 L
Fuel Tank 17.5 gallons 66.0 L
Wheel Nut Torque 100 ft lb 140Y
All capacities are approximate. When adding, be sure to ll to the approximate level, as recommended in this
manual. SeeScheduled Maintenance on page 6-4
Engine Specications
Engine VIN Code Transaxle Spark Plug Gap
3.6L V6 7 Automatic 0.044 inches (1.1 mm)
3.8 V6 2 Automatic 0.060 inches (1.52 mm)
5-92

Recommended Fluids and
Lubricants
Fluids and lubricants identied below by name,
part number or specication may be obtained from
your dealer.
Usage Fluid/Lubricant
Engine OilEngine oil which meets GM
Standard GM6094M and displays
the American Petroleum Institute
Certied for Gasoline Engines
starburst symbol. GM
Goodwrench
®oil meets all the
requirements for your vehicle. To
determine the proper viscosity for
your vehicle’s engine, seeEngine
Oil on page 5-15.
Engine Coolant50/50 mixture of clean, drinkable
water and use only DEX-COOL
®
Coolant. SeeEngine Coolant on
page 5-21.
Hydraulic Brake
SystemDelco Supreme 11 Brake Fluid or
equivalent DOT-3 brake uid.
Windshield
Washer SolventGM Optikleen
®Washer Solvent.
Usage Fluid/Lubricant
Power Steering
SystemGM Power Steering Fluid
(GM Part No. U.S. 89021184, in
Canada 89021186).
Automatic
TransaxleDEXRON
®-III Automatic
Transmission Fluid. Look for
“Approved for the H-Specication”
on the label.
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 109435474).
Weatherstrip
ConditioningDielectric Silicone Grease
(GM Part No. U.S. 12345579, in
Canada 992887).
6-12

Reporting Safety Defects to the
Canadian Government
If you live in Canada, and you believe that your vehicle
has a safety defect, you should immediately notify
Transport Canada, in addition to notifying General
Motors of Canada Limited. You may write to:
Transport Canada
330 Sparks Street
Tower C
Ottawa, Ontario K1A 0N5
Reporting Safety Defects to
General Motors
In addition to notifying NHTSA (or Transport Canada) in
a situation like this, we certainly hope you will notify us.
Please call us at 1-800-521-7300, or write:
Buick Customer Assistance Center
P.O. Box 33136
Detroit, MI 48232-5136
In Canada, please call us at 1-800-263-3777 (English)
or 1-800-263-7854 (French). Or, write:
General Motors of Canada Limited
Customer Communication Centre, 163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
Service Publications Ordering
Information
Service Manuals
Service Manuals have the diagnosis and repair
information on engines, transmission, axle suspension,
brakes, electrical, steering, body, etc.
Transmission, Transaxle, Transfer
Case Unit Repair Manual
This manual provides information on unit repair service
procedures, adjustments, and specications for GM
transmissions, transaxles, and transfer cases.
Service Bulletins
Service Bulletins give technical service information
needed to knowledgeably service General Motors cars
and trucks. Each bulletin contains instructions to
assist in the diagnosis and service of your vehicle.
In Canada, information pertaining to Product Service
Bulletins can be obtained by contacting your General
Motors dealer or by calling 1-800-GM-DRIVE
(1-800-463-7483).
7-11

Audio System(s) (cont.)
Radio with CD............................3-79, 3-84, 3-92
Radio with Six-Disc CD..............................3-105
Setting the Time..........................................3-79
Theft-Deterrent Feature...............................3-117
Understanding Radio Reception...................3-119
Automatic Transaxle
Operation...................................................2-24
Automatic Transmission
Fluid..........................................................5-21
B
Backglass Antenna........................................3-120
Battery..........................................................5-38
Exterior Lighting Battery Saver......................3-15
Run-Down Protection...................................3-18
Before Leaving on a Long Trip.........................4-21
Brake
Anti-Lock Brake System (ABS)........................ 4-6
Emergencies................................................ 4-8
Parking......................................................2-27
System Warning Light..................................3-36
Brakes..........................................................5-35
Braking........................................................... 4-5
Braking in Emergencies..................................... 4-8
Break-In, New Vehicle.....................................2-21Bulb Replacement...........................................5-45
Fog Lamps.................................................5-48
Front Turn Signal and Parking Lamps.............5-47
Halogen Bulbs............................................5-45
Headlamp Aiming........................................5-43
Replacement Bulbs......................................5-50
Taillamps, Turn Signal, Sidemarker,
Stoplamps, and Back-Up Lamps.................5-48
Buying New Tires...........................................5-62
C
California Fuel.................................................. 5-6
Canadian Owners................................................ ii
Capacities and Specications............................5-92
Carbon Monoxide...................2-13, 2-30, 4-24, 4-35
Care of
Safety Belts................................................5-81
Your CD Player.........................................3-119
Your CDs .................................................3-119
Center Console Storage Area...........................2-41
Center Front Passenger Position, Safety Belts....1-24
Center Seat..................................................... 1-7
Chains, Tire...................................................5-66
Charging System Light....................................3-35
2

Electrical System (cont.)
Power Windows and Other Power Options......5-88
Underhood Fuse Block.................................5-90
Windshield Wiper Fuses...............................5-87
Engine
Air Cleaner/Filter.........................................5-19
Battery.......................................................5-38
Change Engine Oil Light...............................3-43
Check and Service Engine Soon Light............3-39
Coolant......................................................5-21
Coolant Heater............................................2-23
Coolant Temperature Gage...........................3-38
Coolant Temperature Warning Light................3-38
Engine Compartment Overview......................5-12
Exhaust.....................................................2-30
Oil .............................................................5-15
Oil Life System...........................................5-18
Overheated Protection Operating Mode...........5-26
Overheating................................................5-24
Reduced Power Light...................................3-44
Starting......................................................2-22
Entry Lighting.................................................3-16
Event Data Recorders (EDR)............................. 7-9
Extender, Safety Belt.......................................1-30
Exterior Lamps...............................................3-13
Exterior Lighting Battery Saver..........................3-15F
Filter
Engine Air Cleaner......................................5-19
Finish Damage...............................................5-84
Flash-to-Pass................................................... 3-8
Flat Tire........................................................5-67
Flat Tire, Changing.........................................5-68
Flat Tire, Storing.............................................5-76
Fluid
Automatic Transmission................................5-21
Power Steering...........................................5-33
Windshield Washer......................................5-34
Fog Lamps............................................3-15, 5-48
Folding Rear Seat............................................ 1-8
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Check Gas Cap Light...................................3-46
Filling a Portable Fuel Container....................5-10
Filling Your Tank........................................... 5-8
Fuels in Foreign Countries.............................. 5-7
Gage.........................................................3-46
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-6
Low Warning Light.......................................3-46
5

Top Strap......................................................1-41
Top Strap Anchor Location...............................1-43
Towing
Recreational Vehicle.....................................4-34
Towing a Trailer..........................................4-35
Your Vehicle...............................................4-34
Traction
Control System (TCS).................................... 4-8
Control System Warning Light.......................3-37
StabiliTrak
®System....................................... 4-9
Transaxle Operation, Automatic.........................2-24
Transmission
Fluid, Automatic...........................................5-21
Trunk............................................................2-13
Trunk Ajar Light..............................................3-45
Turn and Lane-Change Signals.......................... 3-8
Turn Signal/Multifunction Lever........................... 3-7
U
Ultrasonic Rear Parking Assist (URPA)...............3-18
Understanding Radio Reception.......................3-119
Uniform Tire Quality Grading............................5-63
V
Vehicle
Control........................................................ 4-5
Damage Warnings........................................... ivVehicle (cont.)
Loading......................................................4-29
Service Soon Light......................................3-45
Symbols......................................................... iv
Vehicle Data Collection and Event Data
Recorders.................................................... 7-9
Vehicle Identication
Number (VIN).............................................5-86
Service Parts Identication Label...................5-86
Vehicle Personalization
DIC ...........................................................3-71
Ventilation Adjustment......................................3-28
Visors...........................................................2-17
W
Warning Lights, Gages and Indicators................3-30
Warnings
DIC Warnings and Messages........................3-53
Hazard Warning Flashers............................... 3-6
Other Warning Devices.................................. 3-6
Safety and Symbols......................................... iii
Vehicle Damage.............................................. iv
Washer Fluid, Low Warning Light......................3-45
Wheels
Alignment and Tire Balance..........................5-64
Replacement...............................................5-65
Where to Put the Restraint...............................1-40
13