BUICK LUCERNE 2010 Owner's Manual

Vehicle Identification
Vehicle Identification Number (VIN)
This legal identifier is in the front corner of the
instrument panel, on the driver side. It can be seen
through the windshield from outside. The VIN also
appears on the Vehicle Certification and Service
Parts labels and certificates of title and registration.
Engine Identification
The eighth character in the VIN is the engine code. This
code identifies the vehicle's engine, specifications, and
replacement parts. See“Engine Specifications”under
Capacities and Specifications
on page 6‑118for the
vehicle's engine code.
Service Parts Identification Label
This label, on the spare tire cover, has the following
information:
.Vehicle Identification Number (VIN)
.Model designation
.Paint information
.Production options and special equipment
Do not remove this label from the vehicle.
6-109

Electrical System
Add-On Electrical Equipment
Notice:Do not add anything electrical to the vehicle
unless you check with your dealer first. Some
electrical equipment can damage the vehicle and
the damage would not be covered by the vehicle's
warranty. Some add-on electrical equipment can
keep other components from working as they
should.
Add-on equipment can drain the vehicle battery, even if
the vehicle is not operating.
The vehicle has an airbag system. Before attempting to
add anything electrical to the vehicle, see Servicing
Your Airbag-Equipped Vehicle
on page 2‑72and
Adding Equipment to Your Airbag-Equipped Vehicleon
page 2‑73.
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 fixed 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 fires
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 find 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
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.
6-110

FusesUsage
1 Engine Control Module (ECM), Crank
2 Fuel Injectors Odd
3 Fuel Injectors Even
4 Air Conditioning Clutch
FusesUsage
5 Air Injection Reactor (AIR) Solenoid
6 Oxygen Sensor
7 Emission Device
8 Transmission, Ignition 1
6-111

FusesUsage
9Engine Control Module (ECM),
Powertrain Control Module (PCM)
10 Climate 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)
23 Antilock 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)
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
6-112

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.
6-113

To reinstall the rear seat cushion, do the following:
{WARNING:
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(Continued)
WARNING: (Continued)
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.
6-114

FusesUsage
1 Fuel Pump
2 Left Park Lamp
3 Not Used
4 Right Park Lamp
FusesUsage
5Engine Control Module (ECM)/
Transmission Control Module (TCM)
6 Memory Module
7 Not Used
6-115

FusesUsage
8 Steering Wheel Illumination
9 Front Heated/Cooled Seat Module
10 Run 2 - Heated/Cooled Seats 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
21 Ignition Switch
22 Driver Door Module
23 Not Used
24 Electronic Leveling Control Module
25 Body Control Module (Left Turn
Signal)
26 Cigarette Lighter, Auxiliary Power
Outlet
27 Not Used
Fuses Usage
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)
36 Body Control Module (Right Turn
Signal)
37 Trunk Release
38 Amplifier, 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)
6-116

FusesUsage
47Electronic Leveling Control
Compressor (J-Case)
48 Blower (J-Case)
49 Not Used
Resistor Usage
50 Terminating Resistor
RelaysUsage
51 Not Used
52 Rear Defogger
53Electronic Leveling Control
Compressor
58 Park Lamps
59 Fuel Pump
60 Not Used
61 Not Used
Relays Usage
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
Breakers Usage
54 Right Front Seat
55 Left Front Power Seat
56 Power Windows
57 Power Tilt Steering Wheel
6-117

Capacities and Specifications
The following approximate capacities are given in English and metric conversions. SeeRecommended Fluids and
Lubricantson page 7‑9for more information.
Application Capacities
English Metric
Air Conditioning Refrigerant R134a For the air conditioning system refrigerant charge
amount, see the refrigerant caution label located
under the hood. See your dealer for more information.
Engine Cooling System 3.9L V6 Engine 9.7 qt9.2 L
4.6L V8 Engine 12.7 qt12.0 L
Engine Oil with Filter
3.9L V6 Engine 4.0 qt3.8 L
4.6L V8 Engine 7.4 qt7.0 L
Fuel Tank
3.9L V6 Engine (with NU6 emissions) 18.3 gal69.3 L
3.9L V6 Engine (without NU6 emissions) 18.6 gal70.4 L
4.6L V8 Engine 18.6 gal70.4 L
6-118