2009 BUICK ENCLAVE Owner's Manual

{CAUTION
Performing maintenance work on
a vehicle can be dangerous. In
trying to do some jobs, you can
be seriously injured. Do your own
maintenance work only if you
have the required know-how and
the proper tools and equipment
for the job. If you have any doubt,
see your dealer/retailer to have a
qualied technician do the work.
SeeDoing Your Own Service
Work on page 5-4.
Some maintenance services can be
complex. So, unless you are
technically qualied and have the
necessary equipment, have
your dealer/retailer do these jobs.
When you go to your dealer/retailer
for service, trained and supported
service technicians will perform
the work using genuine parts.To purchase service information,
seeService Publications Ordering
Information on page 7-13.
Owner Checks and Services on
page 6-8tells what should be
checked, when to check it, and what
can easily be done to help keep
the vehicle in good condition.
The proper replacement parts,
uids, and lubricants to use
are listed inRecommended Fluids
and Lubricants on page 6-12
andMaintenance Replacement
Parts on page 6-14. When the
vehicle is serviced, make sure these
are used. All parts should be
replaced and all necessary repairs
done before you or anyone else
drives the vehicle. We recommend
the use of genuine parts from
your dealer/retailer.
Scheduled Maintenance
When the CHANGE ENGINE
OIL SOON message displays,
service is required for the vehicle.
Have the vehicle serviced as
soon as possible within the next
600 miles (1 000 km). It is possible
that, if driving under the best
conditions, the engine oil life system
might not indicate that vehicle
service is necessary for over a year.
However, the engine oil and lter
must be changed at least once
a year and at this time the system
must be reset. Your dealer/retailer
has trained service technicians
who will perform this work using
genuine parts and reset the system.
If the engine oil life system is ever
reset accidentally, service the vehicle
within 3,000 miles (5 000 km) since
the last service. Remember to reset
the oil life system whenever the oil is
changed. SeeEngine Oil Life
System on page 5-13for information
on the Engine Oil Life System and
resetting the system.
Maintenance Schedule 6-3

When the CHANGE ENGINE OIL
SOON message appears, certain
services, checks, and inspections
are required. Required services
are described in the following
for “MaintenanceI” and
“Maintenance II.” Generally, it is
recommended that the rst service
be Maintenance I, the second
service be Maintenance II, and then
alternate Maintenance Iand Maintenance
IIthereafter. However,
in some cases, Maintenance II
may be required more often.
Maintenance I—Use
Maintenance Iif the CHANGE
ENGINE OIL SOON message
displays within 10 months since the
vehicle was purchased or
Maintenance IIwas performed. Maintenance
II—Use
Maintenance IIif the previous
service performed was
Maintenance I. Always use
Maintenance IIwhenever the
message displays 10 months or
more since the last service or if the
message has not come on at all
for one year.
Scheduled Maintenance
Service MaintenanceIMaintenance II
Change engine oil and lter. See Engine Oil on page 5-11. Reset oil life
system. See Engine Oil Life System on page 5-13 .An Emission Control
Service. ••
Visually check for any leaks or damage. See footnote (g). ••
Inspect engine air cleaner lter. If necessary, replace lter. See Engine Air
Cleaner/Filter on page 5-14 .See footnote (l). •
Rotate tires and check ination pressures and wear. See Tire Inspection and
Rotation on page 5-48 and “Tire Wear Inspection” in At Least Once a Month
on page 6-9. ••
Inspect brake system. See footnote (a). ••
Check engine coolant and windshield washer uid levels and add uid
as needed. ••
6-4 Maintenance Schedule

Scheduled Maintenance (cont’d)
ServiceMaintenanceIMaintenance II
Perform any needed additional services. See “Additional Required Services” in
this section. ••
Inspect suspension and steering components. See footnote (b). •
Inspect engine cooling system. See footnote (c). •
Inspect wiper blades. See footnote (d). •
Inspect restraint system components. See footnote (e). •
Lubricate body components. See footnote (f). •
Inspect throttle system. See footnote (j). •
Maintenance Schedule 6-5

Additional Required Services
The following services should be performed at the rst maintenance service (Ior II) after the indicated miles
(kilometers) shown for each item.
Additional Required Services
Service and Miles (Kilometers) 25,000
(40 000) 50,000
(80 000) 75,000
(120 000) 100,000
(160 000) 125,000
(200 000) 150,000
(240 000)
Inspect fuel system for damage
or leaks. • •••••
Inspect exhaust system for loose or
damaged components. • •••••
Replace engine air cleaner lter. See
Engine Air Cleaner/Filter on page 5-14 .•••
Change automatic transmission uid
(severe service). See footnote (h). •••
Change automatic transmission uid
(normal service). •
All-wheel-drive vehicles: Change
transfer case uid (severe service).
See footnote (m). •••
All-wheel-drive vehicles: Change
transfer case uid (normal service). •
Replace spark plugs and inspect spark
plug wires. An Emission Control
Service. •
6-6 Maintenance Schedule

Additional Required Services (cont’d)
Service and Miles (Kilometers)25,000
(40 000) 50,000
(80 000) 75,000
(120 000) 100,000
(160 000) 125,000
(200 000) 150,000
(240 000)
Engine cooling system service
(or every ve years, whichever occurs
rst). An Emission Control Service.
See footnote (i). •
Inspect engine accessory drive belt.
An Emission Control Service.
See footnote (k). •
Maintenance Footnotes
(a)
Visually inspect brake lines
and hoses for proper hook-up,
binding, leaks, cracks, chafing, etc.
Inspect disc brake pads for wear
and rotors for surface condition.
Inspect other brake parts, including
calipers, parking brake, etc.
Check parking brake adjustment.
(b) Visually inspect front and
rear suspension and steering
system for damaged, loose, or
missing parts or signs of wear. Inspect power steering lines and
hoses for proper hook-up, binding,
leaks, cracks, chafing, etc.
(c)
Visually inspect hoses and have
them replaced if they are cracked,
swollen, or deteriorated. Inspect all
pipes, fittings and clamps; replace
with genuine parts as needed. To
help ensure proper operation, a
pressure test of the cooling system
and pressure cap and cleaning the
outside of the radiator and air
conditioning condenser is
recommended at least once a year. (d)
Inspect wiper blades for wear,
cracking, or contamination. Clean the
windshield and wiper blades, if
contaminated. Replace wiper blades
that are worn or damaged. See
Windshield Wiper Blade
Replacement on page 5-36 and
Windshield, Backglass, and Wiper
Blades on page 5-88 for more
information.
(e) Make sure the safety belt
reminder light and safety belt
assemblies are working properly.
Look for any other loose or
damaged safety belt system parts.
Maintenance Schedule 6-7

If you see anything that might keep
a safety belt system from doing
its job, have it repaired. Have any
torn or frayed safety belts replaced.
Also see Checking the Restraint
Systems on page 1-58.
(f)Lubricate all key lock cylinders,
hood latch assemblies, secondary
latches, pivots, spring anchor
and release pawl, hood and door
hinges, rear folding seats, and
liftgate hinges. More frequent
lubrication may be required when
exposed to a corrosive environment.
Applying silicone grease on
weatherstrips with a clean cloth will
make them last longer, seal
better, and not stick or squeak.
(g)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.(h)Change automatic transmission
fluid if the vehicle is mainly
driven under one or more of these
conditions:
In heavy city traffic where the
outside temperature regularly
reaches 90°F (32°C) or higher.
In hilly or mountainous terrain.
When doing frequent trailer
towing.
Uses such as found in taxi,
police, or delivery service.
(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 5-17 for
what to use. Inspect hoses. Clean
radiator, condenser, pressure cap,
and filler neck. Pressure test the
cooling system and pressure cap.
(j)Check system for interference or
binding and for damaged or missing
parts. Replace parts as needed.
Replace any components that havehigh effort or excessive wear. Do not
lubricate accelerator or cruise control
cables.
(k)Visually inspect belt for fraying,
excessive cracks, or obvious
damage. Replace belt if necessary.
(l)If driving regularly under dusty
conditions, inspect the filter at each
engine oil change.
(m)Change transfer case fluid if the
vehicle is mainly driven under
one or more of these conditions:
In heavy city traffic where
the outside temperature regularly
reaches 90°F (32°C) or higher.
In hilly or mountainous terrain.
When doing frequent trailer
towing.
Uses such as found in taxi,
police, or delivery service.
6-8 Maintenance Schedule

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 in
Recommended Fluids and
Lubricants on page 6-12.
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 theproper 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. See
Engine Oil on page 5-11.
Engine Coolant Level Check
Check the engine coolant level
and add DEX-COOL®coolant
mixture if necessary. SeeEngine
Coolant on page 5-17.
Windshield Washer Fluid
Level Check
Check the windshield washer uid
level in the windshield washer
uid reservoir and add the proper
uid if necessary.
At Least Once a Month
Tire Ination Check
Inspect the vehicle’s tires and
make sure they are inated to the
correct pressures. Do not forget
to check the spare tire, if the vehicle
has one. SeeInflation - Tire
Pressure on page 5-42.Ifthe
vehicle has a spare tire, check to
make sure it is stored securely. See
Changing a Flat Tire on page 5-71.
Tire Wear Inspection
Tire rotation may be required for
high mileage highway drivers prior to
the Engine Oil Life System service
notication. Check the tires for
wear and, if necessary, rotate the
tires. SeeTire Inspection and
Rotation on page 5-48.
Maintenance Schedule 6-9

At Least Once a Year
Starter Switch Check
{CAUTION
When you are doing this
inspection, the vehicle could move
suddenly. If the vehicle moves,
you or others could be injured.
1. Before starting this check, be
sure there is enough room
around the vehicle.
2. Firmly apply both the parking
brake and the regular brake.
SeeParking Brake on page 2-27.
Do not use the accelerator
pedal, and be ready to turn off
the engine immediately if it starts.
3. Try to start the engine in
each gear. The vehicle should
start only in P (Park) or
N (Neutral).
If the vehicle starts in any other
position, contact your
dealer/retailer for service.
Automatic Transmission Shift
Lock Control System Check
{CAUTION
When you are doing this
inspection, the vehicle could move
suddenly. If the vehicle moves,
you or others could be injured.
1. Before starting this check, be
sure there is enough room
around the vehicle. It should be
parked on a level surface.
2. Firmly apply the parking brake.
SeeParking Brake on page 2-27.
Be ready to apply the regular
brake immediately if the vehicle
begins to move.3. With the engine off, turn the
ignition to ON/RUN, but do not
start the engine. Without applying
the regular brake, try to move the
shift lever out of P (Park) with
normal effort. If the shift lever
moves out of P (Park), contact
your dealer/retailer for service.
Ignition Transmission Lock
Check
While parked, and with the parking
brake set, try to turn the ignition
to LOCK/OFF in each shift
lever position.
The ignition should turn to
LOCK/OFF only when the
shift lever is in P (Park).
The ignition key should come out
only in LOCK/OFF.
Contact your dealer/retailer if
service is required.
6-10 Maintenance Schedule