2010 BUICK LACROSSE engine

10-4 Service and Maintenance
.Windshield wiper blade
inspection for wear, cracking,
or contamination and windshield
and wiper blade cleaning,
if contaminated. SeeExterior
Care
on page 9‑82. Worn or
damaged wiper blade
replacement. See Wiper Blade
Replacement on page 9‑29.
.Body hinges and latches, key
lock cylinders, folding seat
hardware, and sunroof
(if equipped) lubrication.
See Recommended Fluids and
Lubricants
on page 10‑7.
More frequent lubrication may
be required when vehicle is
exposed to a corrosive
environment. Applying silicone
grease on weatherstrips with a
clean cloth makes them last
longer, seal better, and not stick
or squeak.
.Restraint system component
check. See Safety System
Check on page 2‑23.
.Automatic transmission fluid
level check and adding fluid,
if needed. See Automatic
Transmission Fluid
on
page 9‑15.
.Engine air cleaner filter
inspection. See Engine Air
Cleaner/Filter on page 9‑15.
.Passenger compartment air
filter replacement (or every
12 months, whichever occurs
first). More frequent replacement
may be required if vehicle is
driven regularly under dusty
conditions.
Additional Required Services
At Each Fuel Stop
.Engine oil level check. See
Engine Oil on page 9‑11.
.Engine coolant level check. See
Engine Coolant on page 9‑18.
.Windshield washer fluid level
check. See Washer Fluidon
page 9‑23.
Once a Month
.Tire inflation check. See Tire
Pressure on page 9‑53.
.Tire wear inspection. See Tire
Inspection on page 9‑59.
Once a Year
.See Starter Switch Checkon
page 9‑27.
.See Automatic Transmission
Shift Lock Control System
Check on page 9‑27.

Service and Maintenance 10-5
.SeeIgnition Transmission Lock
Check on page 9‑28.
.See Park Brake and P (Park)
Mechanism Checkon
page 9‑28.
.Engine cooling system and
pressure cap pressure check.
Radiator and air conditioning
condenser outside cleaning.
See Cooling System
on
page 9‑17.
.Exhaust system and nearby heat
shields inspection for loose or
damaged components.
.Accelerator pedal check for
damage, high effort, or binding.
Replace if needed.
First Engine Oil Change After
Every 40 000 km/25,000 Miles
.Fuel system inspection for
damage or leaks. First Engine Oil Change After
Every 80 000 km/50,000 Miles
.Engine air cleaner filter
replacement. See
Engine Air
Cleaner/Filter on page 9‑15.
.Automatic transmission fluid
change (severe service) for
vehicles mainly driven in heavy
city traffic in hot weather,
in hilly or mountainous terrain,
when frequently towing a
trailer, or used for taxi,
police, or delivery service.
See Automatic Transmission
Fluid on page 9‑15.
First Engine Oil Change After
Every 160 000 km/100,000 Miles
.Automatic transmission fluid
change (normal service).
See Automatic Transmission
Fluid on page 9‑15.
.Spark plug replacement and
spark plug wires inspection.
An Emission Control Service. First Engine Oil Change After
Every 240 000 km/150,000 Miles
.Engine cooling system drain,
flush, and refill, cooling system
and cap pressure check, and
cleaning of outside of radiator
and air conditioning condenser
(or every 5 years, whichever
occurs first). See
Cooling
System
on page 9‑17.
An Emission Control Service.
.Engine accessory drive belt
inspection for fraying, excessive
cracks, or obvious damage
and replacement, if needed.
An Emission Control Service.

10-6 Service and Maintenance
ServiceMaintenanceIMaintenance
II
Change engine oil and filter. Reset oil life system. ••
Engine coolant level check. ••
Windshield washer fluid level check. ••
Tire inflation pressures check. ••
Tire wear inspection. ••
Rotate tires. ••
Fluids visual leak check. ••
Engine air cleaner filter inspection (vehicles driven in dusty conditions only). ••
Brake system inspection. ••
Steering and suspension inspection. •
Engine cooling system inspection. •
Windshield wiper blades inspection. •
Body components lubrication. •
Restraint system components check. •
Automatic transmission fluid level check. •
Engine air cleaner filter inspection (vehicles not driven in dusty conditions). •
Passenger compartment air filter replacement. •

Service and Maintenance 10-7
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
UsageFluid/Lubricant
Engine Oil Engine oil which meets GM Standard GM6094M and displays the
American Petroleum Institute Certified for Gasoline Engines starburst
symbol. To determine the proper viscosity for the vehicle's engine,
see
Engine Oil on page 9‑11.
Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL
®Coolant.
See Engine Coolant on page 9‑18.
Hydraulic Brake System Hydraulic Brake Fluid (GM Part No. U.S. 88862806, in Canada 88862807). Windshield Washer Optikleen
®Washer Solvent.
Hydraulic Power Steering System GM Power Steering Fluid (GM Part No. U.S. 89021184,
in Canada 89021186).

Service and Maintenance 10-9
Maintenance Replacement Parts
Replacement parts identified below by name, part number, or specification can be obtained from your retailer.Part GM Part Number ACDelco Part Number
Engine Air Cleaner/Filter 55560894 A3128C
Engine Oil Filter
2.4L L4 Engine 12605566 PF457G
3.0L V6 Engine 89017524 PF48
3.6L V6 Engine 89017524 PF48
Passenger Compartment Air Filter Element 13271191 CF176
Spark Plugs 2.4L L4 Engine 12620540 41–108
3.0L V6 Engine 12622561 41–109
3.6L V6 Engine 12622561 41–109
Wiper Blades Driver Side –65 cm (25.6 in) 25892079 —
Passenger Side –45 cm (17.7 in) 25892080 —

Technical Data 11-1
Technical Data
Vehicle Identification
Vehicle IdentificationNumber (VIN) . . . . . . . . . . . . . . 11-1
Service Parts Identification Label . . . . . . . . . . . . . . . . . . . . . . . 11-1
Vehicle Data
Capacities andSpecifications . . . . . . . . . . . . . . 11-2
Engine Drive Belt Routing . . . . 11-4
Vehicle Identification
Vehicle Identification
Number (VIN)
This legal identifier is in the front
corner of the instrument panel, on
the left side of the vehicle. It can be
seen through the windshield from
outside. The VIN also appears on
the Vehicle Certification and Service
Parts labels and certificates of title
and registration.
Engine Identification
The eighth character in the VIN
is the engine code. This code
identifies the vehicle's engine,
specifications, and replacement
parts. See “Engine Specifications”
under Capacities and Specifications
on page 11‑2for the vehicle's
engine code.
Service Parts
Identification Label
This label, on the inside of the glove
box, has the following information:
.Vehicle Identification
Number (VIN)
.Model designation
.Paint information
.Production options and special
equipment
Do not remove this label from the
vehicle.

11-2 Technical Data
Vehicle Data
Capacities and Specifications
ApplicationCapacities
Metric English
Air Conditioning Refrigerant R134a For the air conditioning system refrigerant charge
amount, see the refrigerant caution label located
under the hood. See your dealer/retailer for more
information.
Engine Cooling System 2.4L L4 Engine 7.1 L 7.5 qt
3.0L V6 Engine 9.4 L 9.9 qt
3.6L V6 Engine 9.4 L 9.9 qt
Engine Oil with Filter 2.4L L4 Engine 4.7 L 5.0 qt
3.0L V6 Engine 5.7 L 6.0 qt
3.6L V6 Engine 5.2 L 5.5 qt

Technical Data 11-3
ApplicationCapacities
Metric English
Fuel Tank
AWD 74.0 L 19.5 gal
FWD 70.5 L 18.6 gal
Transmission Fluid* (Drain and Refill)
2.4L L4 Engine, 6–Speed Automatic 8.0 L 8.5 qt
3.0L V6 Engine, All Wheel Drive, 6–Speed Automatic 9.0 L 9.5 qt
3.0L V6 Engine, Front Wheel Drive, 6–Speed Automatic 9.0 L 9.5 qt
3.6L V6 Engine, 6–Speed Automatic 9.0 L 9.5 qt
Wheel Nut Torque 150 Y110 ft lb
*See Automatic Transmission Fluid
on page 9‑15for information on checking fluid level.
All capacities are approximate. When adding, be sure to fill to the approximate level, as recommended in this
manual. Recheck fluid level after filling.