Page 397 of 455

6-56
Cleaning Glass Surfaces
Glass should be cleaned often. GM Glass Cleaner or
a liquid household glass cleaner will remove normal
tobacco smoke and dust films on interior glass.
See ªAppearance Care and Materialsº in the Index.
NOTICE:
Don't use abrasive cleaners on glass, because
they may cause scratches. Avoid placing decals
on the inside rear window, since they may have
to be scraped off later. If abrasive cleaners
are used on the inside of the rear window,
an electric defogger element may be damaged.
Any temporary license should not be attached
across the defogger grid.
Cleaning the Outside of the
Windshield, Backglass and
Wiper Blades
If the windshield is not clear after using the windshield
washer, or if the wiper blade chatters when running,
wax, sap or other material may be on the blade
or windshield.
Clean the outside of the windshield with a full
-strength
glass cleaning liquid. The windshield is clean if beads
do not form when you rinse it with water.
Grime from the windshield will stick to the wiper
blades and affect their performance. Clean the
blade by wiping vigorously with a cloth soaked in
full
-strength windshield washer solvent. Then rinse
the blade with water.
Check the wiper blades and clean them as necessary;
replace blades that look worn.
Page 404 of 455

6-63
Electrical System
Add-On Electrical Equipment
NOTICE:
Don't add anything electrical to your vehicle
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 vehicle, see ªServicing
Your Air Bag
-Equipped Vehicleº in the Index.
Headlamp Wiring
The headlamp wiring is protected by an internal circuit
breaker in the instrument panel fuse panel. An electrical
overload will cause the lamps to go on and off, or in
some cases to remain off. If this happens, have your
headlamp wiring checked right away.
Windshield Wipers
The windshield wiper motor is protected by an internal
circuit breaker and a fuse. If the motor overheats due
to heavy snow, etc., the wiper will stop until the motor
cools. If the overload is caused by some electrical
problem, be sure to get it fixed.
Power Windows and Other Power Options
Circuit breakers in the instrument panel fuse panel
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.
Page 406 of 455
6-65
Circuit Breakers
Usage
HEADLAMP Daytime Running Lamps (DRL)
Control Module, Headlamp and
Instrument Panel Dimmer Switch
PWR SLD DR Power Sliding Door
PWR WDO Front Power Windows
PWR/HEATED
SEAT PSDSix6
-Way Power Seats and Rear
Side Door Actuator Motor
FRT HVAC
HI BLWRBlower Motor Hi Speed
Relay ModuleFuses Usage
SWC
BACKLIGHTSteering Wheel Radio Control
Switches (Illumination)
PCM/PASS
KEY/CLUSTERInstrument Cluster to
PRNDL Indicators
PWR MIRROR Power Remote Control
Mirror Switch
CRUISE Cruise Control Module,
Switch and Release Switch
Blank Not Used
PCM/CRANK Powertrain Control Module
(PCM), Ignition Crank
PASS KEY PASS
-Key III System
PWR LOCK Power Door Locks
HTD MIRROR Heated Mirrors
RH T/LP Driver's Side Taillamp
RR FOG LP Fog Lamps
CIGAR/DIC/
APO FRTCigarette Lighter, DIC, Front
Auxiliary Power Outlets
T/SIG Turn Signal Switch
PWR
QTR VENTInterior Lamp and Multifunction
Switch (Power Vent Switch)
Page 407 of 455

6-66
Fuses Usage
FRT/
WPR/WSHRWindshield Wiper/Washer Motor
and Switch
HAZARD Hazard Switch
RR PWR SCKT Rear Electric Accessory Plug
Housing
DRL Daytime Running Lamp
Control Module
LH T/LP Passenger's Side Taillamp
RR DEFOG/
HTD MIRRORRear Window Defogger Relay,
Heated Mirrors
ON STAR OnStar
SIR Inflatable Restraint Control Module
HVAC BLOWER Heater
-A/C Control
MALL
CLUSTERInstrument Cluster, Body Control
Module, Electronic Level Control
(ELC) Sensor and Relay
STOP LAMP Stoplamp Switch
CLUSTER BATT Module/Electronic Brake Control
Module/Electronic Brake Traction
Control Module (EBCM/EBTCM)Fuses Usage
ENHANCED
EVAP/AWDEvaporative Emissions (EVAP)
Canister Vent Solenoid Valve,
All
-Wheel Drive (AWD)
Blank Not Used
ELC/TRAILER ELC Air Compressor and
ELC Relay, Trailer Harness
CTSY LAMP Courtesy Lamp
IGN 1 BCM, Electronic Brake Control
Indicator Lamp Driver Module,
Instrument Panel Cluster, Rear
Side Door Actuator Control
Module, Rear Windows
RR HVAC
TEMP CONTRear HVAC
-A/C Control
RR WPR/WSHR Rear Window Wiper Motor,
Rear Window Wiper/Washer
and Multifunction Switch (Rear
Window Wiper/Washer Switch)
LH
HEADLP LOWPassenger's Side Low
Beam Headlamp
LH
HEADLP HIGHPassenger's Side High
Beam Headlamp
Page 408 of 455
6-67
Fuses Usage
Blank Not Used
Blank Not Used
Blank Not Used
RAP RELAY Retained Accessory Power
(RAP) Relay
Blank Not Used
HVAC/DIC/DRL/
HEATED SEATAir Inlet Actuator, DIC Display,
DRL Control Module, Heater
-A/C
Control, Temperature Door
Actuator (Front) and Rear
Window Defogger Relay
BCM PRGRAM BCM Programming
RH HEAD
LP LOWDriver's Side Low
Beam Headlamp
RH HEAD
LP HIGHDriver's Side High
Beam Headlamp
PCM/ABS IGN MAIN Relay and PCM,
Electronic Brake Control ModuleUnderhood Fuse Block
This fuse block is located
in the engine compartment,
in front of the windshield
washer fluid reservoir.
See ªEngine Compartment
Overviewº in the Index
for more information
on location.
The fuses marked spare are available if a replacement
fuse is needed.
To remove the cover, turn the knob counterclockwise
and lift up.
When finished, to put the cover back on, turn the
knob clockwise to tighten it. Make sure that the
remote positive (+) terminal cover is on correctly.
Page 409 of 455
6-68
Maxi Fuse Usage
1 Coolant Fans
2 Not Used
3 Circuit Breakers: Front Comfort
Controls Hi Blower, and Headlamp
Fuses (Instrument Panel): Hazard
and Stoplamp
4 Circuit Breaker: Power Seat. Fuses
(Instrument Panel): Electronic Level
Control and Rear DefoggerMaxi Fuse Usage
5 Ignition Switch to Fuses (Instrument
Panel): ABS/TCS Ignition, Cruise,
DRL, Electronic PRNDL, Ignition 1,
PSD, Air Bag, Turn Signal and
Powertrain Control Module
[IGN MAIN Relay (Underhood
Fuse Block: A/C Clutch, Electronic
Ignition, Ignition 1
-U/H, INJ, TCC)]
6 Coolant Fans
7 Fuses (Instrument Panel): ABS
Module Battery, Cigarette Lighter,
Courtesy Lamps, Front Power Socket,
Power Locks, Power Mirrors and
Right Rear Power Socket
8 Ignition Switch to Fuses (I/P): Body
Control Module Program, Front
Comfort Controls Low/Medium
Blower, Front Wiper/Washer,
HVAC/DRL, MALL/Radio/DIC,
Power Quarter Vent, Rear HVAC,
Rear Wiper/Washer. SWC Accessory
and Power Window Circuit Breaker