2008 BUICK LACROSSE Engine overview

Battery
Your vehicle has a maintenance free battery. When it is
time for a new battery, see your dealer/retailer for one
that has the replacement number shown on the original
battery’s label. SeeEngine Compartment Overview on
page 5-12for battery location.
Warning:Battery posts, terminals, and related
accessories contain lead and lead compounds,
chemicals known to the State of California to cause
cancer and reproductive harm. Wash hands after
handling.
If the battery has a very low charge or is dead, you
might not be able to remove the ignition key from the
ignition switch or shift out of PARK (P). SeeShifting Out
of PARK (P) on page 2-35.
Vehicle Storage
{CAUTION:
Batteries have acid that can burn you and gas
that can explode. You can be badly hurt if you
are not careful. SeeJump Starting on
page 5-50for tips on working around a battery
without getting hurt.
Infrequent Usage: If you drive your vehicle infrequently,
remove the black, negative (−) cable from the battery.
This will help keep the battery from running down.
Extended Storage: For extended storage of your vehicle,
remove the black, negative (−) cable from the battery
or use a battery trickle charger. This will help maintain
the charge of the battery over an extended period
of time.
5-49

Notice:If you leave your radio or other accessories
on during the jump starting procedure, they could
be damaged. The repairs would not be covered by
your warranty. Always turn off your radio and other
accessories when jump starting your vehicle.
3. Turn off the ignition on both vehicles. Unplug
unnecessary accessories plugged into the cigarette
lighter or the accessory power outlets. Turn off the
radio and all lamps that are not needed. This will
avoid sparks and help save both batteries. And it
could save the radio!
4. Open the hood on the other vehicle and locate the
positive (+) and negative (−) terminal locations on
that vehicle.
You will not use your vehicle’s battery for jump
starting. It has a remote positive (+) jump starting
terminal, located on the underhood fuse block,
for that purpose. SeeEngine Compartment
Overview on page 5-12for more information on
location.If your vehicle has a
V6 engine, to uncover
the remote positive (+)
terminal, press the tab at
the bottom of the fuse block
and lift the cover up.
3.8L V6 Engine shown,
3.6L V6 Engine
similar
5-51

Underhood Fuse Block
Some fuses and relays are located in the underhood fuse
block on the passenger side of the vehicle in the engine
compartment. SeeEngine Compartment Overview on
page 5-12for more information on location.
Notice:Spilling liquid on any electrical components
on your vehicle may damage it. Always keep the
covers on any electrical component.
Mini-Fuses Usage
1 Driver Side High-Beam
2 Passenger Side High-Beam
Mini-Fuses Usage
3 Driver Side Low-Beam
4 Passenger Side Low-Beam
5 Windshield Wiper
6 Washer/Regulated Voltage Control
7 Fog Lamps
8 Transmission Control Module
9 Supplemental Inatable Restraint
10 Auxiliary Power
11 Horn
12 Emission
13 Air Conditioner Clutch
14 Oxygen Sensor
15 Powertrain Control Module
16Powertrain Control Module,
Electronic Throttle Control
17 Electronic Throttle Control
18 Display
19 Antilock Brake Solenoid
20 Fuel Injector
21 Transmission Solenoid 3.6L & 3.8L V6 Engines
5-112

Engine
Air Cleaner/Filter.........................................5-23
Change Engine Oil Light...............................3-45
Check and Service Engine Soon Light............3-42
Coolant......................................................5-27
Coolant Heater............................................2-27
Coolant Temperature Gage...........................3-40
Coolant Temperature Warning Light................3-40
Drive Belt Routing.......................................6-14
Engine Compartment Overview......................5-12
Exhaust.....................................................2-37
Oil .............................................................5-18
Oil Life System...........................................5-21
Overheated Protection Operating Mode...........5-32
Overheating................................................5-30
Reduced Power Light...................................3-46
Starting......................................................2-26
Enhanced Traction System (ETS)........................ 4-7
Warning Light.............................................3-39
Entry Lighting.................................................3-16
Event Data Recorders.....................................7-18
Extender, Safety Belt.......................................1-29
Exterior Lamps...............................................3-13
Exterior Lighting Battery Saver..........................3-15F
Filter
Engine Air Cleaner......................................5-23
Finish Damage.............................................5-105
Flashers, Hazard Warning.................................. 3-6
Flash-to-Pass................................................... 3-8
Flat Tire........................................................5-86
Flat Tire, Changing.........................................5-87
Flat Tire, Storing.....................................5-95, 5-97
Fluid.............................................................5-25
Power Steering...........................................5-43
Windshield Washer......................................5-44
Fog Lamp
Fog ...........................................................3-15
Folding Rear Seat............................................ 1-8
Fuel............................................................... 5-5
Additives...................................................... 5-7
California Fuel.............................................. 5-6
Check Gas Cap Light...................................3-49
Filling a Portable Fuel Container....................5-10
Filling the Tank............................................. 5-8
Fuels in Foreign Countries.............................. 5-7
Gage.........................................................3-48
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-6
Low Warning Light.......................................3-48
Running Out of...........................................2-37
5

Fuses
Fuses and Circuit Breakers.........................5-109
Instrument Panel Fuse Block.......................5-110
Underhood Fuse Block...............................5-112
Windshield Wiper.......................................5-109
G
Gage
Engine Coolant Temperature.........................3-40
Fuel..........................................................3-48
Speedometer..............................................3-32
Tachometer.................................................3-32
Garage Door Opener.......................................2-47
Gasoline
Octane........................................................ 5-5
Specications............................................... 5-6
Glove Box.....................................................2-52
GM Mobility Reimbursement Program.................. 7-7
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-6
Headlamp
Aiming.......................................................5-56
Headlamp Wiring...........................................5-109Headlamps
Bulb Replacement.......................................5-58
Daytime Running Lamps/Automatic
Headlamp System....................................3-14
Exterior Lamps............................................3-13
Flash-to-Pass............................................... 3-8
Halogen Bulbs............................................5-58
High/Low Beam Changer................................ 3-8
Suggested Light..........................................3-47
Heated Seats................................................... 1-3
Heater...........................................................3-20
Heater...........................................................3-24
Highbeam On Light.........................................3-46
Highway Hypnosis...........................................4-15
Hill and Mountain Roads..................................4-16
Hood
Checking Things Under................................5-10
Release.....................................................5-11
Horn............................................................... 3-6
How to Wear Safety Belts Properly...................1-14I
Ignition Positions.............................................2-24
Infants and Young Children, Restraints...............1-33
Ination - Tire Pressure...................................5-70
Instrument Panel
Overview..................................................... 3-4
6