Page 236 of 340
3. Lift the plastic locking
tab on the electrical
connector and pull the
connector from the
headlamp bulb socket.
4. Align the tabs on the new bulb socket with
in the housing and install the bulb socket.
5. Turn the bulb socket clockwise. the
slots
6. Snap the electrical connector into the bulb socket.
Taillamps
1. Remove the plastic nuts and pull the carpet away
from the rear of the trunk.
6-28
ProCarManuals.com
Page 237 of 340
2. Remove the plastic wing nuts. 3. Pull the taillamp housing away from the body of the
4. Squeeze the tab on the socket and turn the socket
5. Pull out the socket.
6. Pull the bulb out of the socket.
7. Push in a new bulb.
8. Replace the socket into the housing and turn clockwise.
9. Replace the taillamp housing to the body of the vehicle.
vehicle.
counterclockwise.
10. Install the wing nuts.
11. Reposition the carpet and tighten the plastic nuts.
ProCarManuals.com
Page 255 of 340

Add-on Electrical Equipment Fuses and Circuit Breakers
NOTICE:
Don’t add anything electrical to your Buick unless
you check with your dealer first. Some electrical
equipment can damage your vehicle and the
damage wouldn’t be covered by your warranty.
Some add-on electrical equipment can keep other
components from working as they should.
Your vehicle has an air bag system. Before attempting to
add anything electrical to your Buick, see “Servicing
Your Air Bag-Equipped Buick”
in the Index. The wiring
circuits
in your vehicle are protected from
short circuits by
a combination of fuses, circuit breakers,
and fusible thermal links in the wiring itself. This
greatly reduces the chance of fires caused
by electrical
problems.
Some fuses are
in a fuse
block on the passenger
side of the instrument panel.
Pull off
the cover labeled
FUSES to expose the fuses.
Additional fuses are
in the underhood electrical centers
on the right and left sides of the engine compartment.
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.
6-47
ProCarManuals.com
Page 256 of 340
Instrument Panel Fuse Block Fuse
1
5
6
7
10
11
12
14
15
Circuit Description
Breaker
C Power Windows
Description
CIGAR LIGHTER -- Instrument Panel
Cigar Lighter
HAZARD FLASHER
POWER ACCESSORY
#2 -- Sunroof
Control Unit
LOCK CONTROL
-- Door Lock Relay
I/p ELECTRONICS BATTERY FEED --
Chime Module, Electronic Brake Control
Module (EBCM), Theft Deterrent
Module, Radio, Radio Amplifier,
Trip
Computer
STARTER MOTOR
ANTI-THEFT
-- Theft Deterrent Module
HVAC BLOWER MOTOR
-- Blower
Motor Relay
HVAC
#1 -- Air Temperature Valve
Motor,
Trip Computer, Daytime Running
Lamps Module (with
DRL), HVAC
Control Assembly, Multifunction Lever
Cruise Control Switch
D Power Seats
6-48
ProCarManuals.com
Page 257 of 340

r use
16
19
21
23
24 2s
Description
REAR DEFOG -- HVAC Control
Assembly Rear Window Defogger Switch
POWER ACCESSORY
#1-- Antenna
Relay, Power Mirror Switch, Door Lock
Switches, Door Handle Switches
AIR BAG
-- Sensing and Diagnostic
Module (SDM)
STOPLAMPS
-- TCCBrake Switch
HVAC #2
-- HVAC Control Assembly,
Solenoid Box
CTSY LAMPS
-- Vanity Mirrors, I/P
Courtesy Lamps, UP Compartment Lamp,
Trunk Courtesy Lamp, Header Courtesy
and Reading Lamp,
US Lighted Rearview
Mirror, Dome and Reading Lamp,
Quarter Courtesy Lamps
Fuse
29
30
32
33
37
3s
39
Description
WIPER -- Wiper Switch
TURN SIGNAL
-- Turn Signal Flasher
POWER LOCKS
-- Door Lock Relay
ABS -- Electronic Brake Control Module
(EBCM), ABS Relay
AUXILIARY POWER
RADIO
-- Radio, Steering Wheel Radio
Switches
I/P ELECTRONICS IGNITION FEED --
Headlamp Switch, Cruise Control
Cut-Out Switch, Sensing and Diagnostic
Module (SDM), TCCBrake Switch,
Instrument Cluster, Chime Module,
Second Gear Start Switch, Head-Up
Display (HUD) Switch, Daytime Running
Lamps Module (with DRL)
6-49
I
ProCarManuals.com
Page 259 of 340
Fuse
F/INJN
ECM IGN
ELEK
IGN
10
I1
12
13
Description
Fuel Injectors
Powertrain Control Module
(PCM), EGR, CCP, VAPSW, Mass
Air Flow (MAF) Sensor (VIN X
only). Oxy Sensor
Electronic Ignition
(EI) Control
Module
I/P Fuse Block
FAN CONT
#I Relay
Passenger Side Underhood
Electrical Center and
I/P FLW
Blocks: Fuses 5, 14, 23 and 32
FAN CONT #2 Relay and I/P Fuse
Block: Fuse
16. Power Seat
Circuit Breaker
“D”
Relay
14
1s
16
17
18
Description
FUEL PUMP
A/C CMPR
FAN CONT
#2 -- Secondary
Cooling Fan (Passenger Side)
FAN CONT #1 -- Primary
Cooling Fan (Driver Side)
Ignition Relay
6-51
ProCarManuals.com
Page 260 of 340
Underhood Electrical Center -- Driver Side
000 FOG LPS PARKLPS HORN
VAR PIS u
12
Fuse
FOG LPS
PARK LPS
HORN
VAR
P/S
uescription
Fog Lamps
Headlamp Switch
Horn Relay, Underhood Lamp
EVO Steering
Fuse
10
11
12
13
Relay
14
15
16
Description
IGN SW2 -- UP Fuse Block: PWR
WDO and Circuit Breaker “D”;
Passenger Side Underhood
Electrical Center:
TCC and ENG
EMIS Fuses
IGN
SW 1 -- UP Fuse Block:
Radio, Wiper, HVAC, ABS and
Turn Signal Fuses; Passenge.r Side
Underhood Electrical Center:
F/IJN,
ECM IGN and ELEK IGN
Fuses
HD LPS -- Circuit Breaker to
Headlamp Switch
ABS
-- ABS Relay
Description
ABS -- Anti-lock Brake System
FOG LPS
HORN
6-52
ProCarManuals.com
Page 305 of 340

At Least Once a Year
Key Lock Cylinders
Lubricate the key lock cylinders with the lubricant
specified
in Part D.
Body Lubrication
Lubricate all hinges and latches including those for the
body doors, hood, rear compartment, glove
box door,
console door and any folding seat hardware. Part
D tells
you what to use. More frequent lubrication may be
required when exposed to a corrosive environment.
Starter Switch
I I
When you are doing this check, the vehicle could
move suddenly. If it does, you or others could be
injured. Follow
the steps below.
1. Before you start, be sure you have enough room
around the vehicle.
2. Firmly apply both the parking brake (see “Parking
Brake”
in the Index if necessary) and the regular brake.
NOTE: 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 starter
should work only
in PARK (P) or NEUTRAL (N). If
the starter works in any other position, your vehicle
needs service.
Brake-Transaxle Shift Interlock -- BTSI
I I
1. Before you start, be sure you have enough room
around the vehicle. It should
be parked on a level
surface.
2. Firmly apply the parking brake (see “Parking Brake”
in the Index
if necessary).
NOTE: Be ready to apply the regular brake
immediately
if the vehicle begins to move.
7-37
ProCarManuals.com