lock BUICK LESABRE 2005 Manual PDF

When replacing the fuel cap, turn it to the right
(clockwise) until it clicks. Make sure the cap is fully
installed. The diagnostic system can determine if the fuel
cap has been left off or improperly installed. This
would allow fuel to evaporate into the atmosphere. See
Malfunction Indicator Lamp on page 3-41.
If your vehicle has a Driver Information Center (DIC),
the GAS CAP LOOSE-CHECK CAP message will
be displayed if the fuel cap is not properly installed.
{CAUTION:
If a re starts while you are refueling, do not
remove the nozzle. Shut off the ow of fuel by
shutting off the pump or by notifying the
station attendant. Leave the area immediately.
Notice:If you need a new fuel cap, be sure to get
the right type. Your dealer can get one for you.
If you get the wrong type, it may not t properly.
This may cause your malfunction indicator lamp to
light and may damage your fuel tank and emissions
system. SeeMalfunction Indicator Lamp on
page 3-41.
5-9

A. Engine Compartment Fuse Block. SeeEngine
Compartment Fuse Block on page 5-89.
B. Windshield Washer Fluid Reservoir. See “Adding
Washer Fluid” underWindshield Washer Fluid
on page 5-34.
C. Remote Positive (+) Terminal. SeeJump Starting on
page 5-40.
D. Engine Coolant Recovery Tank. SeeCooling System
on page 5-28.
E. Radiator Pressure Cap. SeeRadiator Pressure Cap
on page 5-26.
F. Engine Oil Dipstick. See “Checking Engine Oil”
underEngine Oil on page 5-13.
G. Engine Oil Fill Cap. See “When to Add Engine Oil”
underEngine Oil on page 5-13.
H. Engine Coolant Air Bleed Valve. See “How to Add
Coolant to the Radiator” underCooling System
on page 5-28.
I. Automatic Transaxle Fluid Dipstick. See “Checking
the Fluid Level” underAutomatic Transaxle Fluid
on page 5-21.
J. Brake Master Cylinder Reservoir. See “Brake Fluid”
underBrakes on page 5-35.
K. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 5-18.Engine Oil
If the ENGINE OIL LOW
CHECK LEVEL DIC
message appears on the
instrument cluster, it
means you need to check
your engine oil level
right away. For more
information, seeDIC
Warnings and Messages
on page 3-50.
You should check your engine oil level regularly; this is
an added reminder.
Checking Engine Oil
It is a good idea to check your engine oil every time you
get fuel. 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 5-12for
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 you do not do this,
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.
5-13

Then, without shutting off the engine, follow these steps:
The transaxle uid dipstick
top is a round, red loop
and is located next to the
brake master cylinder
behind the engine block.
SeeEngine Compartment
Overview on page 5-12
for more information
on location.
1. Pull out the dipstick and wipe it with a clean rag or
paper towel.
2. Push it back in all the way, wait three seconds and
then pull it back out again.3. Check both sides of the dipstick, and read the
lower level. The uid level must be in the
cross-hatched area.
4. If the uid level is in the acceptable range, push the
dipstick back in all the way.
5-23

How to Add Coolant to the Radiator
1. You can remove the radiator pressure cap when
the cooling system, including the radiator pressure
cap and upper radiator hose, is no longer hot.
Turn the pressure cap slowly counterclockwise until
it rst stops. Do not press down while turning the
pressure cap.
If you hear a hiss, wait for that to stop. A hiss
means there is still some pressure left.
2. Then keep turning the pressure cap, but now push
down as you turn it. Remove the pressure cap.
3. Remove the 3800 Series II V6 engine cover shield
to access the bleed valve.3.1. Clean the area around the engine oil ll tube
and cap before removing. Twist the oil ll
tube, with cap attached, counterclockwise
and remove it.
3.2. If you have the supercharged engine,
remove the nut in the center of the
cover shield.
3.3. Lift the engine cover shield at the front, slide
the catch tab out of the engine bracket and
remove the cover shield.
3.4. Put the oil ll tube, with cap attached, in the
valve cover oil ll hole until you are ready to
replace the cover shield.
5-31

7. Replace the 3800 Series II V6 engine cover shield.
7.1. Remove the oil ll tube, with cap attached,
from the valve cover.
7.2. Insert the catch tab on the cover shield
under the bracket on the engine.
7.3. Place the hole in the cover shield over the
hole in the valve cover. Install oil ll tube and
cap by twisting clockwise.
7.4. If you have the supercharged engine, install
the nut in the center of the cover shield.
8. Then ll the coolant
recovery tank to the
FULL COLD mark.
9. Put the cap back on the coolant recovery tank, but
leave the radiator pressure cap off.10. Start the engine and let it run until you can feel the
upper radiator hose getting hot. Watch out for the
engine cooling fans.
11. By this time, the coolant level inside the radiator
ller neck may be lower. If the level is lower, add
more of the proper DEX-COOL
®coolant mixture
through the ller neck until the level reaches
the base of the ller neck.
12. Then replace the pressure cap. At any time during
this procedure if coolant begins to ow out of the ller
neck, reinstall the pressure cap. Be sure the arrow
on the pressure cap lines up properly.
5-33

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. Your
vehicle was designed and tested with top-quality GM
brake parts. When you replace parts of your braking
system — for example, when your brake linings
wear down and you need new ones put in — be sure
you get new approved GM replacement parts. If you do
not, your brakes may no longer work properly. For
example, if someone puts in brake linings that are wrong
for your vehicle, the balance between your front and
rear brakes can change — for the worse. The braking
performance you have come to expect can change
in many other ways if someone puts in the wrong
replacement brake parts.
Battery
Your vehicle has a maintenance free battery. When it is
time for a new battery, get one that has the replacement
number shown on the original battery’s label. We
recommend an ACDelco
®replacement battery.
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.The battery is located under the rear seat cushion. To
access the battery, see “Removing the Rear Seat
Cushion” underRear Underseat Fuse Block on
page 5-91. You do not need to access the battery to
jump start your vehicle. SeeJump Starting on
page 5-40.
{CAUTION:
A battery that is not properly vented can let
sulfuric acid fumes into the area under the rear
seat cushion. These fumes can damage your
rear seat safety belt systems. You may not be
able to see this damage, and the safety belts
might not provide the protection needed in a
crash. If a replacement battery is ever needed,
it must be vented in the same manner as the
original battery. Always make sure that the
vent hose is properly reattached before
reinstalling the seat cushion.
5-38

Headlamps
1. Remove the two bolts retaining the
headlamp assembly.
2. Slide the headlamp outward until the pins are loose.
3. Remove the headlamp assembly to access
the bulbs.4. Turn the bulb retainer counterclockwise to remove it
from the bulb assembly.
5. Pull the old bulb straight out from the retainer. Push
the new bulb straight into the retainer.
6. Reverse Steps 1 through 4 to reinstall the
headlamp assembly.
5-49

Front Turn Signal Lamps
1. Follow Steps 1 through 3 underHeadlamps on
page 5-49to remove the headlamp assembly
2. Reach down into the space provided by the
removal of the headlamp assembly and, while
pushing in the tab on the bulb assembly, turn the
assembly counterclockwise and remove it.
3. Remove the old bulb by pulling it straight out of
the retainer.
4. Install the new bulb and turn the bulb assembly
back into place.
Taillamps, Turn Signal, and
Stoplamps
1. Open the trunk. SeeTrunk on page 2-14for
more information.
2. Turn the screws located just inside of the trunk
counterclockwise and remove them.
3. Remove the plastic trim piece from the trunk.
4. Pull the carpet away from the rear area to access
the turn signal bulb assembly.
5. Loosen and remove the bolts that hold the lamp
assembly in place.6. Pull out the lamp assembly.
5-50

7. Turn the bulb socket
one-quarter turn
counterclockwise, while
pressing it rmly.
8. Pull the bulb socket straight out of the assembly.
9. Remove the old bulb by pulling it straight out.
10. Replace with a new bulb by pushing the bulb
straight into the socket until the bulb clicks
into place.
11. Turn the bulb socket one-quarter turn into the
assembly to lock it back into place.
12. Reverse Steps 1 through 5 to reinstall the
lamp assembly.Taillamps and Back-Up Lamps
1. Open the trunk. SeeTrunk on page 2-14for
more information.
2. Loosen and remove the seven fasteners that hold
the taillamp assembly in place. The assembly for
both sides is one piece. The entire piece must
be removed to replace any bulbs.
5-51

3. Pull out the assembly. 4. Push in the tab and turn the bulb socket
counterclockwise to remove it.
5. Remove the bulb by pulling it straight out.
6. Replace the bulb and reverse the steps to reinstall
the assembly.
5-52