lock BUICK LUCERNE 2009 Owner's Manual

10. Install the compact spare tire.
{CAUTION:
Never use oil or grease on bolts or nuts because
the nuts might come loose. The vehicle’s wheel
could fall off, causing a crash.
11. Put the wheel nuts back on with the rounded end of
the nuts toward the wheel. Turn each nut clockwise
by hand until the wheel is held against the hub.
12. Lower the vehicle by turning the jack handle
counterclockwise. Lower the jack completely.
{CAUTION:
Incorrect or improperly tightened wheel nuts can
cause the wheel to come loose and even come
off. This could lead to a crash. If you have to
replace them, be sure to get new original
equipment wheel nuts. Stop somewhere as soon
as you can and have the nuts tightened with a
torque wrench to the proper torque specication.
SeeCapacities and Specifications on page 5-109
for wheel nut torque specication.
5-88

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/retailer immediately.
Underhood Fuse Block
The underhood fuse block is located on the passenger
side of the engine compartment. Remove the fuse
cover and secondary service cover to access the
fuse block.
Notice:Spilling liquid on any electrical components
on the vehicle may damage it. Always keep the
covers on any electrical component.
5-101

Fuses Usage
7 Emission Device
8 Transmission, Ignition 1
9Engine Control Module (ECM),
Powertrain Control Module (PCM)
10Climate Control System, Instrument
Panel Cluster Ignition 1
11 Airbag System
12 Horn
13 Windshield Wiper
14 Fog Lamps
15 Right High-Beam Headlamp
16 Left High-Beam Headlamp
17 Left Low-Beam Headlamp
18 Right Low-Beam Headlamp
19 Windshield Washer Pump Motor
20 Left Front Cornering Lamp
21 Right Front Cornering Lamp
22 Air Pump (J-Case)
23Antilock Brake System (ABS)
(J-Case)Fuses Usage
24 Starter (J-Case)
25Antilock Brake System (ABS)
Motor (J-Case)
26 Cooling Fan 2 (J-Case)
27 Cooling Fan 1 (J-Case)
28 Windshield Washer Heater (J-Case)
Relays Usage
29 Powertrain
30 Starter
31 Cooling Fan 2
32 Cooling Fan 3
33 Cooling Fan 1
34 Air Conditioning Clutch
35 Air Injection Reactor (AIR) Solenoid
36 Ignition
37 Air Pump
5-103

Rear Underseat Fuse Block
The rear fuse block is located under the rear seat on
the driver 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.
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.
5-104

To reinstall the rear seat cushion, do the following:
{CAUTION:
A safety belt that is not properly routed through the
seat cushion or is twisted will not provide the
protection needed in a crash. If the safety belt has
not been routed through the seat cushion at all, it
will not be there to work for the next passenger. The
person sitting in that position could be badly injured.
After reinstalling the seat cushion, always check to
be sure that the safety belts are properly routed and
are not twisted.
1. Buckle the center passenger position safety belt,
then route the safety belts through the proper slots
in the seat cushion. Do not let the safety belts get
twisted.
2. Slide the rear of the cushion up and under the
seatback so the rear-locating guides hook into the
wire loops on the back frame.
3. With the seat cushion lowered, push rearward and
then press down on the seat cushion until the spring
locks on both ends engage.
4. Check to make sure the safety belts are properly
routed and that no portion of any safety belt is
trapped under the seat. Also make sure the seat
cushion is secured.
5-105

Fuses Usage
5Engine Control Module
(ECM)/Transmission Control
Module (TCM)
6 Memory Module
7 Not Used
8 Steering Wheel Illumination
9 Front Heated/Cooled Seat Module
10Run 2 - Heated/Cooled Seats,
Heated Washer Fluid
11 Not Used
12 RPA Module
13 PASS-Key
®III System
14 Unlock/Lock Module
15 Magnetic Ride Control
16 Daytime Running Lamps (DRL)
17 Sunroof
18 Body Control Module (BCM) Dim
19 Body Control Module (BCM)
20 Run 1-Heated Steering Wheel
Fuses Usage
21 Ignition Switch
22 Driver Door Module
23 Not Used
24 Electronic Leveling Control Module
25Body Control Module
(Left Turn Signal)
26Cigarette Lighter, Auxiliary Power
Outlet
27 Not Used
28 Retained Accessory Power 1 (RAP)
29 Passenger Door Module
30 Sensing and Diagnostic Module
31 Accessory Power Outlets
32Body Control Module (BCM)
(Inadvertent)
33 Retained Accessory Power 2 (RAP)
34 CanisterVent Solenoid
35 Body Control Module (Courtesy)
36Body Control Module
(Right Turn Signal)
5-107

Fuses Usage
37 Trunk Release
38 Amplier, Radio
39 Body Control Module (CHMSL)
40 Body Control Module
41 Not Used
42 OnStar
®Module
43 Body Modules
44 Radio
45 Not Used
46 Rear Defogger (J-Case)
47Electronic Leveling Control
Compressor (J-Case)
48 Blower (J-Case)
49 Not Used
Resistor Usage
50 Terminating Resistor
Relays Usage
51 Not Used
52 Rear Defogger
53Electronic Leveling Control
Compressor
Relays Usage
58 Park Lamps
59 Fuel Pump
60 Not Used
61 Not Used
62 Unlock
63 Lock
64 Run
65 Daytime Running Lamps
66 Not Used
67 Trunk Release
68 Not Used
69 Not Used
70 Retained Accessory Power (RAP)
Circuit
BreakersUsage
54 Right Front Seat
55 Left Front Power Seat
56 Power Windows
57 Power Tilt Steering Wheel
5-108

(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. 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 1-74.
(f)Lubricate all key lock cylinders. Lubricate all
hinges and latches, including those for the hood, rear
compartment, glove box door, and console door. 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)If driving regularly under dusty conditions, the filter
may require replacement more often.
(h)Change automatic transmission fluid and filter 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.(j)Drain, flush, and refill cooling system. This service
can be complex; you should have your dealer/retailer
perform this service. See Engine Coolant (4.6L Engine)
on page 5-28 or Engine Coolant (3.9L Engine) on
page 5-32 for what to use. Inspect hoses. Clean
radiator, condenser, pressure cap, and filler neck.
Pressure test the cooling system and pressure cap.
(k)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.
(l)Visually inspect belt for fraying, excessive cracks, or
obvious damage. Replace belt if necessary.
(m)If driving regularly under dusty conditions, inspect
the filter at each engine oil change.
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
inRecommended Fluids and Lubricants on page 6-12.
6-8

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.
6-10

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.
Parking Brake and Automatic
Transmission P (Park) Mechanism
Check
{CAUTION:
When you are doing this check, the vehicle could
begin to move. You or others could be injured and
property could be damaged. Make sure there is
room in front of the vehicle in case it begins to
roll. Be ready to apply the regular brake at once
should the vehicle begin to move.Park on a fairly steep hill, with the vehicle facing
downhill. Keeping your foot on the regular brake,
set the parking brake.
To check the parking brake’s holding ability:
With the engine running and the transmission
in N (Neutral), slowly remove foot pressure from
the regular brake pedal. Do this until the vehicle
is held by the parking brake only.
To check the P (Park) mechanism’s holding ability:
With the engine running, shift to P (Park). Then
release the parking brake followed by the regular
brake.
Contact your dealer/retailer if service is required.
Underbody Flushing Service
At least every spring, use plain water to ush any
corrosive materials from the underbody. Take care
to clean thoroughly any areas where mud and other
debris can collect.
6-11