2007 BUICK LUCERNE fuse

A. Underhood Fuse Block. SeeUnderhood Fuse
Block on page 428.
B. Remote Positive (+) Battery Terminal. See
Jump Starting on page 372.
C. Windshield Washer Fluid Reservoir. See
“Adding Washer Fluid” underWindshield
Washer Fluid on page 365.
D. Engine Coolant Surge Tank. See Index.
E. Power Steering Fluid. SeePower Steering
Fluid on page 364.
F. Engine Oil Fill Cap. See “When to Add Engine
Oil” underEngine Oil on page 337.
G. Engine Oil Dipstick. See “Checking Engine Oil”
underEngine Oil on page 337.
H. Brake Master Cylinder. See “Brake Fluid” under
Brakes on page 367.
I. Automatic Transaxle Fluid Cap and Dipstick
(Out of View). SeeAutomatic Transaxle
Fluid on page 343.
J. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 342.Engine Oil
If the OIL LEVEL LOW ADD OIL message
appears in the Driver Information Center (DIC), it
means you need to check the engine oil level
right away. For more information, seeDIC
Warnings and Messages on page 221. You should
check the engine oil level regularly; this is an
added reminder.
Checking Engine Oil
It is a good idea to check the 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.
SeeEngine Compartment Overview on page 334
for 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.
337

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 431. You do not need to access
the battery to jump start your vehicle. See
Jump Starting on page 372.
370

Electrical System
Add-On Electrical Equipment
Notice:Do not add anything electrical to your
vehicle unless you check with your dealer
rst. Some electrical equipment can damage
your vehicle and the damage would not
be covered by your warranty. Some add-on
electrical equipment can keep other
components from working as they should.
Add-on equipment can drain your vehicle’s battery,
even if your vehicle is not operating.
Your vehicle has an airbag system. Before
attempting to add anything electrical to your
vehicle, seeServicing Your Airbag-Equipped
Vehicle on page 86.
Power Windows and Other Power
Options
Circuit breakers in the rear fuse block protect the
power windows and other power accessories.
When the current load is too heavy, the circuit
breaker opens and closes, protecting the circuit
until the problem is xed or goes away.
Fuses and Circuit Breakers
The wiring circuits in your vehicle are protected
from short circuits by a combination of fuses
and circuit breakers. This greatly reduces
the chance of res caused by electrical problems.
Look at the silver-colored band inside the fuse.
If the band is broken or melted, replace the fuse.
Be sure you replace a bad fuse with a new
one of the identical size and rating.
You will nd a fuse puller clipped in both of the
fuse blocks. Snap the wide end of the fuse puller
at the side indentations and pull the fuse out.
The MaxiFuses are located in two fuse blocks,
one located in the engine compartment on
the passenger’s side and the other under the rear
seat on the driver’s side. If a MaxiFuse should
blow, have your vehicle serviced by your dealer
immediately.
Underhood Fuse Block
The underhood fuse block is located on the
passenger’s side of the engine compartment.
Remove the fuse cover and secondary service
cover to access the fuse block.
428

Fuses Usage
F1 Spare
F2 Driver’s Side Low-Beam
F3 Passenger’s Side Low-BeamFuses Usage
F4 Airbag Ignition
F5 Engine Control Module
F6 Transaxle Ignition
429

Fuses Usage
F7 Spare
F8 Spare
F9 Spare
F10Passenger’s Side High-Beam
Headlamp
F11 Driver’s Side High-Beam Headlamp
F12 Windshield Washer Pump
F13 Spare
F14Climate Controls, Instrument Panel
Cluster
F15 Spare
F16 Fog Lamps
F17 Horn
F18 Windshield Wiper
F19 Driver’s Side Corner Lamp
F20 Passenger’s Side Corner Lamp
F21 Oxygen Sensor
F22 Powertrain
F23Engine Control Module (ECM),
Crank
F24 Injector Coil
F25 Injector Coil
F26 Air Conditioning
F27 Air SolenoidFuses Usage
F28Engine Control Module, Transaxle
Control Module (ECM/TCM)
F29 Spare
F30 Spare
F31 Spare
F32 Spare
J-Case Fuse Usage
JC1 Heated Windshield Washer
JC2 Cooling Fan 1
JC3 Spare
JC4 Crank
JC5 Cooling Fan 2
JC6 Anti-lock Brake System 2
JC7 Anti-lock Brake System 1
JC8 Air Pump
Relays Usage
R1 Cooling Fan 1
R2 Cooling Fan
R3 Crank
R4 Powertrain
R5 Spare
430

Relays Usage
R6 Run/Crank
R7 Cooling Fan 2
R8 Windshield Wiper
R9 Air Pump
R10 Windshield Wiper High
R11 Air Conditioning
R12 Air Solenoid
Rear Underseat Fuse Block
The rear fuse block is located under the rear seat
on the driver’s side. The rear seat cushion
must be removed to access the rear fuse block.
Removing the Rear Seat Cushion
Notice:If you touch the exposed wires with
the metal on the seat cushion, you could cause
a short that could damage the battery and or
wires. Avoid contact between the rear seat and
the fuse center whenever you remove or
reinstall the rear seat. Do not remove covers
from any of the covered parts, and do not store
anything under the seats.To remove the rear seat cushion, do the following:
1. Pull up on the front of the cushion to release
the front hooks.
2. Pull the cushion up and out toward the front
of the vehicle.
3. To access the fuse block, pull out and lift up
on the cover latch, located at the end of the
fuse block, near the battery cable.
431

J-Case Fuses Usage
JC1 Climate Control Fan
JC2 Rear Defogger
JC3Electronic Leveling
Control/CompressorFuses Usage
F1 Amplier (Option)
F2 Not Used
F3 Interior Lamps
433

Fuses Usage
F4Courtesy/Passenger Side Front Turn
Signal
F5 Canister Vent
F6Magnetic Ride Control Module
(Option)
F7 Leveling Compressor
F8 Not Used
F9 Not Used
F10 Switch Dimmer
F11 Fuel Pump
F12 Body Control Module Logic
F13 Airbag
F14 Accessory Power Outlets
F15 Driver’s Side Turn Signal
F16 Passenger Side Rear Turn Signal
F17 Sunroof
F18Center High-Mounted Stoplamp,
Back-up Lamps
F19 Rear Door Locks
F20 Not Used
F21 Radio, S-Band
F22 OnStar
®(Option)
F23 Accessory Power Outlet
F24 Driver Door Module
Fuses Usage
F25 Passenger Door Module
F26 Trunk Release
F27 Heated/Cooled Seats (Option)
F28Engine Control Module, Transaxle
Control Module (ECM/TCM)
F29 Regulated Voltage Control Sense
F30 Daytime Running Lamps
F31 Instrument Panel Harness Module
F32 Not Used
F33 Not Used
F34 Steering Wheel Illumination
F35 Body Harness Module
F36Memory Seat Module Logic
Massage (Option)
F37 Object Detection Sensor (Option)
F38 Not Used
F40 Shifter Solenoid
F41Retained Accessory Power,
Miscellaneous
F42 Driver’s Side Park Lamp
F43 Passenger’s Side Park Lamp
F44 Heated Steering Wheel (Option)
F45 Not Used
F46 Not Used
434