2006 BUICK LUCERNE battery

Using the Auxiliary Input Jack
Your radio system has an auxiliary input jack located on
the lower right side of the faceplate. This is not an audio
output; do not plug the headphone set into the front
auxiliary input jack. You can however, connect an
external audio device such as an iPod, laptop computer,
MP3 player, CD changer, or cassette tape player, etc.
to the auxiliary input jack for use as another source for
audio listening.
To use a portable audio player, connect a 3.5 mm
(1/8 inch) cable to the radio’s front auxiliary input jack.
When a device is connected, press the radio CD/AUX
button to begin playing audio from the device over the
car speakers.
O(Power/Volume):Turn this knob clockwise or
counterclockwise to increase or decrease the volume of
the portable player. You may need to do additional
volume adjustments from the portable device if
the volume does not go loud or soft enough.
BAND:Press this button to listen to the radio while a
portable audio device is playing. The portable audio device
will continue playing, so you may want to stop it or turn it off.
CD/AUX (CD/Auxiliary):Press this button to play a CD
while a portable audio device is playing. Press this button
again and the system will begin playing audio from the
connected portable audio player. If a portable audio player
is not connected, “no input device found” will be displayed.
Navigation/Radio System
Your vehicle may have a navigation radio system.
The navigation system has built-in features intended to
minimize driver distraction. Technology alone, no
matter how advanced, can never replace your own
judgment. See the navigation system manual for some
tips to help you reduce distractions while driving.
Theft-Deterrent Feature
THEFTLOCK®is designed to discourage theft of your
vehicle’s radio. It works by using a secret code to
disable all radio functions whenever battery power is
removed and the radio is placed in a different vehicle.
This feature requires no user input to be activated.
The radio is automatically armed when it is put into the
vehicle for the rst time.
If THEFTLOCK
®is activated, the radio will not operate
if stolen. The radio will display LOCKED. If this occurs,
the radio will need to be returned to your GM dealer.
3-98

{CAUTION:
Snow can trap exhaust gases under your
vehicle. This can cause deadly CO (carbon
monoxide) gas to get inside. CO could
overcome you and kill you. You cannot see it
or smell it, so you might not know it is in your
vehicle. Clear away snow from around the
base of your vehicle, especially any that is
blocking your exhaust pipe. And check around
again from time to time to be sure snow does
not collect there.
Open a window just a little on the side of the
vehicle that is away from the wind. This will
help keep CO out.Run your engine only as long as you must. This saves
fuel. When you run the engine, make it go a little
faster than just idle. That is, push the accelerator
slightly. This uses less fuel for the heat that you get
and it keeps the battery charged. You will need a
well-charged battery to restart the vehicle, and possibly
for signaling later on with your headlamps. Let the
heater run for a while.
Then, shut the engine off and close the window almost
all the way to preserve the heat. Start the engine
again and repeat this only when you feel really
uncomfortable from the cold. But do it as little as
possible. Preserve the fuel as long as you can. To help
keep warm, you can get out of the vehicle and do
some fairly vigorous exercises every half hour or so
until help comes.
4-27

Service............................................................5-3
Accessories and Modications..........................5-3
California Proposition 65 Warning.....................5-3
Doing Your Own Service Work.........................5-4
Adding Equipment to the Outside of Your
Vehicle......................................................5-5
Fuel................................................................5-5
Gasoline Octane............................................5-5
Gasoline Specications....................................5-5
California Fuel...............................................5-6
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-7
Filling the Tank..............................................5-8
Filling a Portable Fuel Container.....................5-10
Checking Things Under the Hood....................5-10
Hood Release..............................................5-11
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-15
Engine Oil Life System..................................5-18
Engine Air Cleaner/Filter................................5-19
Automatic Transaxle Fluid..............................5-21
Engine Coolant.............................................5-23
Radiator Pressure Cap..................................5-27
Coolant Surge Tank Pressure Cap..................5-27
Engine Overheating.......................................5-27Overheated Engine Protection Operating
Mode (4.6L V8 Engine Only).......................5-28
Cooling System (3.8L V6 Engine)....................5-29
Cooling System (4.6L V8 Engine)....................5-34
Power Steering Fluid.....................................5-38
Windshield Washer Fluid................................5-39
Brakes........................................................5-40
Battery........................................................5-42
Jump Starting...............................................5-44
Headlamp Aiming...........................................5-49
Bulb Replacement..........................................5-52
Halogen Bulbs..............................................5-52
Taillamps, Turn Signal, Stoplamps and
Sidemarker Lamps.....................................5-52
Taillamps and Back-Up Lamps.......................5-54
Windshield Wiper Blade Replacement..............5-55
Tires..............................................................5-56
Tire Sidewall Labeling...................................5-57
Tire Terminology and Denitions.....................5-59
Ination - Tire Pressure.................................5-62
Check Tire Pressure System..........................5-63
Tire Inspection and Rotation...........................5-65
When It Is Time for New Tires.......................5-66
Buying New Tires.........................................5-66
Section 5 Service and Appearance Care
5-1

A. Radiator Pressure Cap. SeeRadiator Pressure Cap
on page 5-27.
B. Windshield Washer Fluid Reservoir. See “Adding
Washer Fluid” underWindshield Washer Fluid
on page 5-39.
C. Remote Positive (+) Battery Terminal. SeeJump
Starting on page 5-44.
D. Underhood Fuse Block. SeeUnderhood Fuse Block
on page 5-93.
E. Engine Coolant Recovery Tank. SeeCooling System
(3.8L V6 Engine) on page 5-29orCooling System
(4.6L V8 Engine) on page 5-34.
F. Electric Engine Cooling Fans. SeeCooling System
(3.8L V6 Engine) on page 5-29orCooling System
(4.6L V8 Engine) on page 5-34.G. Engine Oil Dipstick (Out of View). See “Checking
Engine Oil” underEngine Oil on page 5-15.
H. Engine Oil Fill Cap. See “When to Add Engine Oil”
underEngine Oil on page 5-15.
I. Automatic Transaxle Fluid Dipstick. See “Checking
the Fluid Level” underAutomatic Transaxle Fluid
on page 5-21.
J. Brake Fluid Reservoir. See “Brake Fluid” under
Brakes on page 5-40.
K. Power Steering Fluid Reservoir (Out of View). See
Power Steering Fluid on page 5-38.
L. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 5-19.
5-13

A. Underhood Fuse Block. SeeUnderhood Fuse Block
on page 5-93.
B. Remote Positive (+) Battery Terminal. SeeJump
Starting on page 5-44.
C. Windshield Washer Fluid Reservoir. See “Adding
Washer Fluid” underWindshield Washer Fluid
on page 5-39.
D. Engine Coolant Surge Tank. SeeCooling System
(3.8L V6 Engine) on page 5-29orCooling System
(4.6L V8 Engine) on page 5-34.
E. Power Steering Fluid. SeePower Steering Fluid on
page 5-38.
F. Engine Oil Fill Cap. See “When to Add Engine Oil”
underEngine Oil on page 5-15.
G. Engine Oil Dipstick. See “Checking Engine Oil”
underEngine Oil on page 5-15.
H. Brake Master Cylinder. See “Brake Fluid” under
Brakes on page 5-40.
I. Automatic Transaxle Fluid Cap and Dipstick (Out of
View). SeeAutomatic Transaxle Fluid on page 5-21.
J. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 5-19.Engine Oil
If the ENGINE OIL LOW ADD OIL message appears in
the Driver Information Center (DIC), it means you
need to check your engine oil level right away. For more
information, seeDIC Warnings and Messages on
page 3-56.
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.
5-15

Brake Pedal Travel
See your dealer if the brake pedal does not return to
normal height, or if there is a rapid increase in
pedal travel. This could be a sign of brake trouble.
Brake Adjustment
Every time you apply the brakes, with or without the
vehicle moving, your brakes adjust for wear.
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 5-96. You do not need to access the battery to
jump start your vehicle. SeeJump Starting on
page 5-44.
5-42

{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.
To be sure the vent hose (A) is properly attached, the
vent hose connectors (B) must be securely reattached to
the vent outlets (C) on each side of the battery, and
the vent assembly grommet (D) must be secured to the
oor pan (E).
5-43

Vehicle Storage
If you are not going to drive your vehicle for 25 days or
more, remove the black, negative (−) cable from the
battery. This will help keep your battery from
running down.
{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 5-44for tips on working around a battery
without getting hurt.
Also, for your audio system, seeTheft-Deterrent
Feature on page 3-98.
Jump Starting
If your 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.
5-44