2010 BUICK LACROSSE air filter

Climate Controls 7-1
Climate Controls
Climate Control Systems
Automatic Climate ControlSystem . . . . . . . . . . . . . . . . . . . . . . 7-1
Dual Automatic Climate Control System . . . . . . . . . . . . . . 7-4
Air Vents
Air Vents . . . . . . . . . . . . . . . . . . . . . . 7-8
Maintenance
Air Intake . . . . . . . . . . . . . . . . . . . . . 7-8
Passenger Compartment AirFilter . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
Climate Control Systems
Automatic Climate Control System
The heating, cooling, and ventilation for the vehicle can be controlled with
this system.
A. Power
B. Temperature Control
C. Fan Control
D. Air Delivery Mode Control
E. Recirculation F. AUTO
G. Defrost
H. Air Conditioning
I. Rear Window Defogger

7-8 Climate Controls
Air Vents
Use the louvers located on the air
vents to change the direction of the
airflow.
To open the vent, move the
thumbwheel to
R. To close the vent,
move the thumbwheel to
(.
Operation Tips
.Keep all outlets open whenever
possible for best system
performance.
.Keep the path under all seats
clear of objects to help circulate
the air inside the vehicle more
effectively.
.Use of non-GM approved hood
deflectors can adversely affect
the performance of the system.
Maintenance
Air Intake
Clear away any ice, snow, or leaves
from the air intake at the base of the
windshield that can block the flow of
air into the vehicle.
Passenger Compartment
Air Filter
The filter removes dust, pollen, and
other airborne irritants from outside
air that is pulled into the vehicle.
The filter should be replaced as part
of routine scheduled maintenance.
See Scheduled Maintenance
on
page 10‑2for replacement
intervals. To find out what type of
filter to use, see Maintenance
Replacement Parts on page 10‑9. The passenger compartment air
filter can be accessed by removing
the entire glove box.
1. Open the passenger side door.
Remove the end cover located
on the side of the instrument
panel in the top right corner.
Remove the screw affixed to the
side of the glove box.
2. Open the glove box door and remove the attached screws
from around the glove box.
3. Lower the loosened glove box housing.
4. Unplug both wire cables and remove the glove box.
5. Pull the three tabs to release and open the filter door.

Climate Controls 7-9
6. Remove the old air filter.7. Install the new air filter.
8. Reinstall the air filter door.Re-install the glove box.
See your dealer/retailer if additional
assistance is needed.

Vehicle Care 9-1
Vehicle Care
General Information
General Information . . . . . . . . . . . 9-2
California Proposition65 Warning . . . . . . . . . . . . . . . . . . 9-2
California Perchlorate Materials Requirements . . . . . . . . . . . . . . . 9-3
Accessories and Modifications . . . . . . . . . . . . . . . . 9-3
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . . 9-4
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . 9-6
Engine Oil . . . . . . . . . . . . . . . . . . . 9-11
Engine Oil Life System . . . . . . 9-13
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . 9-15
Engine Air Cleaner/Filter . . . . . 9-15
Cooling System . . . . . . . . . . . . . . 9-17
Engine Coolant . . . . . . . . . . . . . . 9-18
Engine Overheating . . . . . . . . . 9-20
Overheated Engine Protection Operating Mode . . . . . . . . . . . . 9-21
Power Steering Fluid . . . . . . . . 9-22 Washer Fluid . . . . . . . . . . . . . . . . 9-23
Brakes . . . . . . . . . . . . . . . . . . . . . . . 9-24
Brake Fluid . . . . . . . . . . . . . . . . . . 9-25
Battery . . . . . . . . . . . . . . . . . . . . . . . 9-26
Starter Switch Check . . . . . . . . 9-27
Automatic Transmission Shift
Lock Control System
Check . . . . . . . . . . . . . . . . . . . . . . 9-27
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . 9-28
Park Brake and P (Park) Mechanism Check . . . . . . . . . 9-28
Wiper Blade Replacement . . . 9-29Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . 9-30
Bulb Replacement
Bulb Replacement . . . . . . . . . . . 9-33
Halogen Bulbs . . . . . . . . . . . . . . . 9-33
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . . . . . . 9-33
Headlamps, Front Turn Signal and Parking Lamps . . . . . . . . . 9-33
Fog Lamps . . . . . . . . . . . . . . . . . . 9-35 Taillamps, Turn Signal,
Stoplamps, and Back-Up
Lamps . . . . . . . . . . . . . . . . . . . . . . 9-35
License Plate Lamp . . . . . . . . . . 9-36
Replacement Bulbs . . . . . . . . . . 9-37
Electrical System
Electrical System Overload . . . . . . . . . . . . . . . . . . . 9-38
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . . 9-38
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . 9-39
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . 9-41
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . 9-43
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . 9-46
Winter Tires . . . . . . . . . . . . . . . . . . 9-46
Tire Sidewall Labeling . . . . . . . 9-47
Tire Designations . . . . . . . . . . . . 9-49
Tire Terminology and
Definitions . . . . . . . . . . . . . . . . . . 9-50
Tire Pressure . . . . . . . . . . . . . . . . 9-53
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . 9-54

Vehicle Care 9-7
A.Engine Air Cleaner/Filteron
page 9‑15
B. Engine Cover.
C. Engine Oil Fill Cap. See Engine
Oil on page 9‑11
D. Engine Oil Dipstick. See Engine
Oil on page 9‑11
E. Transmission Fluid Cap and Dipstick. See Automatic
Transmission Fluid
on
page 9‑15
F. Brake Master Cylinder Reservoir. See Brakeson
page 9‑24
G. Power Steering Reservoir and Cap. See Power Steering Fluid
on page 9‑22
H. Engine Coolant Reservoir and
Pressure Cap. See Engine
Coolant on page 9‑18
I. Battery Cover. See Battery
on
page 9‑26
J. Engine Compartment Fuse
Block on page 9‑39
K. Windshield Washer Fluid Reservoir. See Washer Fluid
on
page 9‑23

Vehicle Care 9-9
A.Engine Air Cleaner/Filteron
page 9‑15
B. Power Steering Reservoir and
Cap. See Power Steering Fluid
on page 9‑22
C. Engine Oil Fill Cap. See Engine
Oil on page 9‑11
D. Engine Oil Dipstick (Out of View). See Engine Oil
on
page 9‑11
E. Engine Cover.
F. Transmission Fluid Cap and Dipstick. See Automatic
Transmission Fluid
on
page 9‑15
G. Brake Master Cylinder Reservoir. See Brakeson
page 9‑24
H. Engine Coolant Reservoir and Pressure Cap. See Engine
Coolant on page 9‑18
I. Battery Cover. See Battery
on
page 9‑26
J. Engine Compartment Fuse
Block on page 9‑39
K. Windshield Washer Fluid Reservoir. See Washer Fluid
on
page 9‑23

Vehicle Care 9-11
A.Engine Air Cleaner/Filteron
page 9‑15.
B. Power Steering Reservoir and Cap. See Power Steering Fluid
on page 9‑22.
C. Engine Oil Fill Cap. See Engine
Oil on page 9‑11.
D. Engine Oil Dipstick (Out of View). See Engine Oil
on
page 9‑11.
E. Engine Cover.
F. Transmission Fluid Cap and Dipstick. See Automatic
Transmission Fluid
on
page 9‑15. G. Brake Master Cylinder
Reservoir. See Brakes
on
page 9‑24.
H. Engine Coolant Reservoir and Pressure Cap. See Engine
Coolant on page 9‑18.
I. Battery Cover. See Battery
on
page 9‑26.
J. Engine Compartment Fuse
Block on page 9‑39.
K. Windshield Washer Fluid Reservoir. See Washer Fluid
on
page 9‑23.
Engine Oil
Checking Engine Oil
It is a good idea to check the engine
oil level at each fuel fill. In order to
get an accurate reading, the oil
must be warm and the vehicle must
be on level ground.
The engine oil dipstick handle is a
yellow loop. See Engine
Compartment Overview
on
page 9‑6for the location of the
engine oil dipstick.
1. Turn off the engine and give the oil several minutes to drain back
into the oil pan. If this is not
done, the oil dipstick might not
show the actual level.
2. Pull out the dipstick and clean it with a paper towel or cloth, then
push it back in all the way.
Remove it again, keeping the tip
down, and check the level.

Vehicle Care 9-15
Automatic Transmission
Fluid
How to Check Automatic
Transmission Fluid
It is not necessary to check the
transmission fluid level.
A transmission fluid leak is the only
reason for fluid loss. If a leak
occurs, take the vehicle to your
dealer/retailer service department
and have it repaired as soon as
possible.
There is a special procedure for
checking and changing the
transmission fluid. Because this
procedure is difficult, you should
have this done at your dealer/
retailer service department. Contact
your dealer/retailer for additional
information or the procedure can be
found in the service manual. To
purchase a service manual, see
Service Publications Ordering
Information on page 12‑12.Change the fluid and filter at the
intervals listed in
Scheduled
Maintenance
on page 10‑2, and be
sure to use the fluid listed in
Recommended Fluids and
Lubricants on page 10‑7.
Engine Air Cleaner/Filter
The engine air cleaner/filter is
located in the engine compartment
on the driver's side of the vehicle.
See Engine Compartment Overview
on page 9‑6for more information
on location.
When to Inspect the Engine Air
Cleaner/Filter
Inspect the air cleaner/filter at the
Maintenance IIintervals and replace
it at the first oil change after each
80 000 km (50,000 mile) interval.
See Scheduled Maintenance
on
page 10‑2for more information.
If you are driving in dusty/dirty
conditions, inspect the filter at each
engine oil change.
How to Inspect the Engine Air
Cleaner/Filter
To inspect the air cleaner/filter,
remove the filter from the vehicle
and lightly shake the filter to release
loose dust and dirt. If the filter
remains caked with dirt, a new filter
is required.
To inspect or replace the engine air
cleaner/filter do the following:
2.4 L L4 Engine
1. Remove the screws on top of the engine air cleaner/filter
housing.