2009 BUICK ENCLAVE service

Replacing Brake System Parts
The braking system on a vehicle
is complex. Its many parts have to
be of top quality and work well
together if the vehicle is to have
really good braking. The vehicle was
designed and tested with top-quality
brake parts. When parts of the
braking system are replaced — for
example, when the brake linings
wear down and new ones are
installed — be sure to get new
approved replacement parts. If this
is not done, the brakes might
not work properly. For example, if
someone puts in brake linings
that are wrong for the vehicle, the
balance between the front and
rear brakes can change — for the
worse. The braking performance
expected can change in many other
ways if the wrong replacement
brake parts are installed.
Battery
This 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.
For battery replacement, see your
dealer/retailer or the service manual.
To purchase a service manual,
seeService Publications Ordering
Information on page 7-13.
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.
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 5-28for tips on working
around a battery without
getting hurt.
Infrequent Usage: If the vehicle is
driven infrequently, remove the
black, negative (−) cable from the
battery. This helps keep the battery
from running down.
Extended Storage: For extended
storage of the vehicle, remove
the black, negative (−) cable from
the battery or use a battery
trickle charger. This helps maintain
the charge of the battery over
an extended period of time.
Service and Appearance Care 5-27

Jump Starting
If the vehicle’s battery has run
down, you may want to use another
vehicle and some jumper cables
to start your vehicle. Be sure to use
the following steps to do it safely.
{CAUTION
Batteries can hurt you. They can
be dangerous because:
They contain acid that can
burn you.
They contain gas that can
explode or ignite.
They contain enough
electricity to burn you.
If you do not follow these steps
exactly, some or all of these
things can hurt you.Notice:Ignoring these steps
could result in costly damage to
your vehicle that would not
be covered by your warranty.
Trying to start your vehicle
by pushing or pulling it will not
work, and it could damage
your vehicle.
1. Check the other vehicle. It must
have a 12-volt battery with a
negative ground system.
Notice:If the other vehicle’s
system is not a 12-volt system
with a negative ground, both
vehicles can be damaged. Only
use vehicles with 12-volt systems
with negative grounds to jump
start your vehicle.
2. Get the vehicles close enough so
the jumper cables can reach, but
be sure the vehicles are not
touching each other. If they are, it
could cause a ground connection
you do not want. You would not
be able to start your vehicle, and
the bad grounding could damage
the electrical systems.To avoid the possibility of the
vehicles rolling, set the parking
brake rmly on both vehicles
involved in the jump start
procedure. Put an automatic
transmission in P (Park) or a
manual transmission in Neutral
before setting the parking brake.
If you have a four-wheel-drive
vehicle, be sure the transfer case
is not in Neutral.
Notice:If you leave the radio or
other accessories on during
the jump starting procedure, they
could be damaged. The repairs
would not be covered by the
warranty. Always turn off
the radio and other accessories
when jump starting the 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!
5-28 Service and Appearance Care

4. Open the hoods and locate the
positive (+) and negative (−)
terminal locations on the other
vehicle. Your vehicle has a
remote positive (+) and a
remote negative (−) jump
starting terminal. SeeEngine
Compartment Overview on
page 5-10for more information
on the terminal locations.
{CAUTION
Using a match near a battery can
cause battery gas to explode.
People have been hurt doing this,
and some have been blinded. Use
a ashlight if you need more light.
Be sure the batteries have
enough water. You do not need to
add water to the ACDelco
®
battery (or batteries) installed in
your new vehicle. But if a battery
(Continued)
CAUTION (Continued)
has ller caps, be sure the right
amount of uid is there. If it is
low, add water to take care of that
rst. If you do not, explosive gas
could be present.
Battery uid contains acid that
can burn you. Do not get it on
you. If you accidentally get it in
your eyes or on your skin, ush
the place with water and get
medical help immediately.
{CAUTION
Fans or other moving engine
parts can injure you badly. Keep
your hands away from moving
parts once the engine is running.5. Check that the jumper cables do
not have loose or missing
insulation. If they do, you could
get a shock. The vehicles
could be damaged too.
Before you connect the cables,
here are some basic things you
should know. Positive (+) will go
to positive (+) or to a remote
positive (+) terminal if the vehicle
has one. Negative (−) will go to a
heavy, unpainted metal engine
part or to a remote negative (−)
terminal if the vehicle has one.
Do not connect positive (+) to
negative (−) or you will get
a short that would damage the
battery and maybe other
parts too. And do not connect
the negative (−) cable to
the negative (−) terminal on the
dead battery because this
can cause sparks.
Service and Appearance Care 5-29

6. Connect the red positive (+)
cable to the positive (+) terminal
of the dead battery.
Use a remote positive (+)
terminal if the vehicle has one.
7. Do notlet the other end touch
metal. Connect it to the
positive (+) terminal of the good
battery. Use a remote positive (+)
terminal if the vehicle has one.8. Now connect the black
negative (−) cable to the
negative (−) terminal of the
good battery. Use a remote
negative (−) terminal if the
vehicle has one.
Do not let the other end touch
anything until the next step. The
other end of the negative (−)
cable does not go to the dead
battery. It goes to a heavy,
unpainted metal engine part, or to
a remote negative (−) terminal on
the vehicle with the dead battery.9. Connect the other end of the
negative (−) cable at least
18 inches (45 cm) away from the
dead battery, but not near
engine parts that move.
The electrical connection is just
as good there, and the chance
of sparks getting back to the
battery is much less.
Your vehicle has a remote
negative (−) terminal for this
purpose.
5-30 Service and Appearance Care

10. Now start the vehicle with the
good battery and run the
engine for a while.
11. Try to start the vehicle that had
the dead battery. If it will not
start after a few tries, it probably
needs service.
Notice:If the jumper cables are
connected or removed in the
wrong order, electrical shorting
may occur and damage the
vehicle. The repairs would not be
covered by your warranty. Always
connect and remove the jumper
cables in the correct order,
making sure that the cables do not
touch each other or other metal.A. Heavy, Unpainted Metal Engine
Part or Remote Negative (−)
Terminal
B. Good Battery or Remote
Positive (+) and Remote
Negative (−) Terminals
C. Dead Battery or Remote
Positive (+) TerminalTo disconnect the jumper cables
from both vehicles, do the following:
1. Disconnect the black negative (−)
cable from the vehicle that had
the dead battery.
2. Disconnect the black negative (−)
cable from the vehicle with the
good battery.
3. Disconnect the red positive (+)
cable from the vehicle with the
good battery.
4. Disconnect the red positive (+)
cable from the other vehicle. Jumper Cable Removal
Service and Appearance Care 5-31

All-Wheel Drive
Be sure to perform the lubricant
checks described in this section.
There are two additional systems
that need lubrication.
Transfer Case
When to Check Lubricant
Refer to the Maintenance Schedule
to determine how often to check
the lubricant. SeeScheduled
Maintenance on page 6-3.How to Check Lubricant
To get an accurate reading, the
vehicle should be on a level surface.
If the level is below the bottom of
the ller plug hole, you will need to
add some lubricant. Add enough
lubricant to raise the level to
the bottom of the ller plug hole.
Use care not to overtighten the plug.What to Use
Refer to the Maintenance Schedule
to determine what kind of lubricant
to use. SeeRecommended
Fluids and Lubricants on page 6-12.
Rear Drive Module
When to Check Lubricant
Refer to the Maintenance Schedule
to determine how often to check
the lubricant. SeeScheduled
Maintenance on page 6-3.
(A) Drain Plug (B) Filler Plug
5-32 Service and Appearance Care

How to Check Lubricant
To get an accurate reading, the
vehicle should be on a level surface.
If the level is below the bottom of
the ller plug hole, you will need to
add some lubricant. Add enough
lubricant to raise the level to
the bottom of the ller plug hole.
Use care not to overtighten the plug.
What to Use
Refer to the Maintenance Schedule
to determine what kind of lubricant to
use. SeeRecommended Fluids and
Lubricants on page 6-12.Headlamp Aiming
Headlamp aim has been preset at
the factory and should need no
further adjustment.
However, if your vehicle is damaged
in a crash, the headlamp aim may
be affected. Aim adjustment to
the low-beam headlamps may be
necessary if oncoming drivers ash
their high-beam headlamps at
you (for vertical aim).
If the headlamps need to be
re-aimed, it is recommended that
you take the vehicle to your
dealer/retailer for service.
Bulb Replacement
For the proper type of replacement
bulbs, seeReplacement Bulbs
on page 5-35.
For any bulb changing procedure
not listed in this section, contact
your dealer/retailer.
High Intensity Discharge
(HID) Lighting
{CAUTION
The low beam high intensity
discharge lighting system operates
at a very high voltage. If you try
to service any of the system
components, you could be
seriously injured. Have your
dealer/retailer or a qualied
technician service them.
Your vehicle has HID headlamps.
After your vehicle’s HID headlamp
bulb has been replaced, you may
notice that the beam is a slightly
different shade than it was originally.
This is normal. (A) Filler Plug (B) Drain Plug
Service and Appearance Care 5-33

Halogen Bulbs
{CAUTION
Halogen bulbs have pressurized
gas inside and can burst if you
drop or scratch the bulb. You or
others could be injured. Be sure
to read and follow the instructions
on the bulb package.
Taillamps, Turn Signal,
Stoplamps and
Sidemarker Lamps
A. Taillamp
B. Sidemarker Lamp
To replace one of these bulbs:
1. Open the liftgate. SeeLiftgate on
page 2-10orPower Liftgate on
page 2-10.
2. Remove the convenience net.3. Remove the three hex nuts
holding the taillamp assembly
in place.
4. Pull out the taillamp assembly.
5. Turn the bulb socket
counterclockwise and pull it
straight out to remove it.
6. Replace the old bulb with a
new one.
7. Reverse steps 3 through 5 to
reinstall the taillamp assembly.
When reinstalling the taillamp
assembly, the plastic pin on the
taillamp assembly must line
up and be inserted correctly into
the opening.
5-34 Service and Appearance Care