2003 CHEVROLET VENTURE heater

Notice:Engine damage from running your engine
without coolant isn't covered by your warranty.
See ªOverheated Engine Protection Operating
Modeº in the Index for information on driving to a
safe place in an emergency.
Notice:Using coolant other than DEX-COOLžmay
cause premature engine, heater core or radiator
corrosion. In addition, the engine coolant may
require changing sooner, at 30,000 miles (50 000 km)
or 24 months, whichever occurs ®rst. Any repairs
would not be covered by your warranty. Always use
DEX-COOL
ž(silicate-free) coolant in your vehicle.
How to Add Coolant to the Coolant
Recovery Tank
If you haven't found a problem yet, but the coolant level
isn't at or above the FULL COLD mark, add a
50/50 mixture of
clean, drinkable waterand DEX-COOLž
engine coolant at the coolant recovery tank. SeeEngine Coolant on page 5-23for more information.
{CAUTION:
Adding only plain water to your cooling
system can be dangerous. Plain water, or
some other liquid such as alcohol, can boil
before the proper coolant mixture will. Your
vehicle's coolant warning system is set for the
proper coolant mixture. With plain water or the
wrong mixture, your engine could get too hot
but you would not get the overheat warning.
Your engine could catch ®re and you or others
could be burned. Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
žcoolant.
Notice:In cold weather, water can freeze and crack
the engine, radiator, heater core and other parts.
Use the recommended coolant and the proper
coolant mixture.
5-31

Fuse Usage
HTD MIRROR Heated Mirrors
RH T/LP Driver's Side Taillamp (Export Only)
RR FOG LP Fog Lamps (Export Only)
CIGAR/DIC/
APO FRTCigarette Lighter, DIC, Front
Auxiliary Power Outlets, Data Link
T/SIG Turn Signal Switch
PWR QTR
VENTInterior Lamp and Multifunction
Switch (Power Vent Switch), Auto
Level
FRT/WPR/
WSHRWindshield Wiper/Washer Motor and
Switch
HAZARD Hazard Switch
RR PWR SCKTRear Electric Accessory Plug
Housing
DRLDaytime Running Lamp Control
Module
LH T/LPPassenger's Side Taillamp
(Export Only)
RR
DEFOG/HTD
MIRRORRear Window Defogger Relay,
Heated Mirrors
ON STAR OnStar
ž
Fuse Usage
SIR In¯atable Restraint Control Module
HVAC
BLOWERHeater-A/C Control
MALL
CLUSTERInstrument Cluster, Body Control
Module, Electronic Level Control
(ELC) Sensor and Relay, Theft,
Door Ajar
STOP LAMP Stoplamp Switch
CLUSTER
BATTModule/Electronic Brake Control
Module/Electronic Brake Traction
Control Module (EBCM/EBTCM)
ENHANCED
EVAP/AWDEvaporative Emissions (EVAP)
Canister Vent Solenoid Valve,
All-Wheel Drive (AWD)
Blank Not Used
ELC/TRAILERELC Air Compressor and ELC
Height Sensor, Trailer Harness
CTSY LAMP Courtesy Lamp
IGN 1BCM, Electronic Brake Control
Indicator Lamp Driver Module,
Instrument Panel Cluster, Rear Side
Door Actuator Control Module, Rear
Windows, Rear Parking Aid
RR HVAC
TEMP CONTRear HVAC-A/C Control
5-98

Fuse Usage
RR
WPR/WSHRRear Window Wiper Motor, Rear
Window Wiper/Washer and
Multifunction Switch (Rear Window
Wiper/Washer Switch)
LH HEADLP
LOWPassenger's Side Low Beam
Headlamp (Export Only)
LH HEADLP
HIGHPassenger's Side High Beam
Headlamp (Export Only)
Blank Not Used
Blank Not Used
Blank Not Used
RAP RELAYRetained 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 RelayFuse Usage
BCM PRGRAM BCM Programming
RH HEAD LP
LOWDriver's Side Low Beam Headlamp
(Export Only)
RH HEAD LP
HIGHDriver's Side High Beam Headlamp
(Export Only)
PCM/ABSIGN MAIN Relay and PCM,
Electronic Brake Control Module
Circuit Breaker Usage
HEADLAMPDaytime 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 PSDSix-Way Power Seats and Rear
Side Door Actuator Motor
FRT HVAC HI
BLWRBlower Motor Hi Speed Relay
Module
5-99

Fuse Usage
5Ignition Switch to Fuses (Instrument
Panel): ABS/TCS Ignition, Cruise,
DRL, Electronic PRNDL, Ignition 1,
AWD, 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
7Fuses (Instrument Panel): ABS
Module Battery, Cigarette Lighter,
Courtesy Lamps, Front Power
Socket, Power Locks, Power Mirrors
and Right Rear Power Socket,
OnStar, RAP
8Ignition 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, RAPFuse Usage
18 Fuel Injectors 1±6
19 Not Used
20 Not Used
21Evaporative Emissions (EVAP)
Canister Purge Valve, Heated
Oxygen Sensors 1 and 2, Mass Air
Flow (MAF) Sensor
22 Not Used
23 Not Used
24 Not Used
25 Ignition Control Module (ICM)
26 Not Used
27Transaxle Range Switch to Back-up
Lamps
28A/C Clutch Relay to A/C
Compressor Clutch Oil
29Driver Information Display, Heater
A/C Control, Radio, Rear (LH and
RH) Side Door Actuator Control
Motor, Remote Control Door Lock
Receiver (RCDLR), Security
Indicator Lamp and Theft-Deterrent
Shock Sensor
5-101

Cleaning Glass Surfaces..................................5-89
Cleaning Interior Plastic Components.................5-89
Cleaning Leather............................................5-89
Cleaning the Top of the Instrument Panel...........5-89
Cleaning Tires................................................5-92
Cleaning Vinyl................................................5-89
Cleaning Windshield, Backglass and
Wiper Blades..............................................5-92
Cleaning........................................................5-87
Inside of Your Vehicle..................................5-87
Outside of Your Vehicle................................5-90
Underbody Maintenance...............................5-93
Video Screen............................................3-105
Weatherstrips..............................................5-90
Your DVD Player.......................................3-105
Climate Control System...................................3-25
Air Filter, Passenger Compartment.................3-33
Outlet Adjustment........................................3-28
Rear..................................................3-29, 3-31
Compact Disc Messages.................3-71, 3-81, 3-92
Compact Overhead Console.............................2-52
Compact Spare Tire........................................5-86
Compass Variance..........................................3-59
Content Theft-Deferrent....................................2-27
Content Theft-Deterrent System,
Arming and Disarming..................................2-68
Content Theft-Deterrent System........................2-67Control of a Vehicle.......................................... 4-5
Convenience Center........................................2-58
Convenience Net............................................2-57
Coolant.........................................................3-44
Engine Temperature Gage............................3-44
Engine Temperature Warning Message...........3-51
Heater, Engine............................................2-33
Cooling System..............................................5-29
Cruise Control................................................3-11
Cupholder(s)..................................................2-51
Current and Past Model Order Forms................7-11
Customer Assistance Information........................ 7-7
Courtesy Transportation.................................. 7-7
Customer Assistance for Text Telephone
(TTY) Users.............................................. 7-4
Customer Assistance Offices........................... 7-4
Customer Satisfaction Procedure..................... 7-2
GM Mobility Program for Persons with
Disabilities................................................ 7-5
Reporting Safety Defects to General Motors....7-10
Reporting Safety Defects to the Canadian
Government............................................7-10
Reporting Safety Defects to the United
States Government.................................... 7-9
Roadside Assistance Program......................... 7-6
Service Publications Ordering Information........7-10
4

Electrical System (cont.)
Power Windows and Other Power Options......5-96
Windshield Wiper Fuses...............................5-96
Emissions Inspection and Maintenance
Programs...................................................3-48
Engine Coolant Level Check.............................6-10
Engine Oil Additives........................................5-17
Engine Oil and Chassis Lubrication
Scheduled Maintenance................................. 6-6
Engine Oil Level Check...................................6-10
Engine Speci®cations.....................................5-104
Engine..........................................................5-18
Air Cleaner/Filter.........................................5-18
Battery.......................................................5-43
Change Oil Message...................................3-54
Check and Service Engine Soon Light............3-45
Compartment Overview................................5-12
Coolant Heater............................................2-33
Coolant Temperature Gage...........................3-44
Coolant Temperature Warning Message..........3-51
Coolant......................................................5-23
Cooling System Inspection............................6-16
Exhaust.....................................................2-42
Low Oil Level Message................................3-53
Oil .............................................................5-13
Overheating................................................5-26
Starting......................................................2-32
Entering Programming Mode............................2-62
Entertainment System......................................3-92
Cleaning the Video Screen..........................3-105Entertainment System (cont.)
Cleaning Your DVD Player..........................3-105
DVD Distortion..........................................3-103
Entry Lighting.................................................3-18
Erasing HomeLink
žButtons..............................2-50
Exit Lighting...................................................3-19
Exiting Programming Mode...............................2-70
Express-Down Window....................................2-25
Extender, Safety Belt.......................................1-54
Exterior Lamps...............................................3-15
F
Filter.............................................................5-18
Engine Air Cleaner......................................5-18
Finding a PTY Station.....................3-68, 3-75, 3-85
Finding a Station....................3-62, 3-65, 3-73, 3-82
Finish Care....................................................5-91
Finish Damage...............................................5-93
Fixed Mast Antenna.......................................3-105
Flash-to-Pass................................................... 3-9
Flat Tire, Changing.........................................5-71
Flat Tire........................................................5-70
Flip and Fold Rear Seats.................................. 1-7
Fluid.............................................................5-20
Automatic Transaxle.....................................5-20
Power Steering...........................................5-37
Windshield Washer......................................5-38
FM ..............................................................3-104
6

T
Tachometer....................................................3-39
Taillamps.......................................................5-56
Turn Signal, Stoplamps and Back-up Lamps....5-56
TCS Warning Light..........................................3-43
Theft-Deterrent, Radio....................................3-103
Theft-Deterrent Systems...................................2-27
Content Theft-Deterrent................................2-27
PASS-Key
žIII Operation..............................2-29
PASS-KeyžIII .............................................2-29
Throttle System Inspection...............................6-16
Tilt Wheel........................................................ 3-7
Tire In¯ation Check.........................................6-10
Tires.............................................................5-60
Buying New Tires........................................5-64
Chains.......................................................5-67
Changing a Flat Tire....................................5-71
Compact Spare Tire.....................................5-86
If a Tire Goes Flat.......................................5-70
In¯ation -- Tire Pressure...............................5-61
Inspection and Rotation................................5-62
Uniform Tire Quality Grading.........................5-65
Wheel Alignment and Tire Balance.................5-66
Wheel Replacement.....................................5-66
When It Is Time for New Tires......................5-63
To Use the Engine Coolant Heater....................2-34
Top Strap Anchor Location...............................1-67
Top Strap......................................................1-66
Torque Lock...................................................2-41Total Weight on Your Vehicle's Tires..................4-38
Towing..........................................................4-32
Recreational Vehicle.....................................4-32
Towing a Trailer..........................................4-36
Your Vehicle...............................................4-32
Traction.........................................................3-51
Active Message...........................................3-51
Control System (TCS).................................... 4-8
Control System Warning Light.......................3-43
Service Traction System Warning Message.....3-50
Trailer Brakes.................................................4-39
Trailer Wiring Harness.....................................4-43
Transaxle Operation, Automatic.........................2-34
Transaxle.......................................................5-20
Fluid, Automatic...........................................5-20
Transfer Case (Power Transfer Unit)..................5-50
Transmission, Transaxle, Transfer Case Unit
Repair Manual............................................7-10
Transportation Options...................................... 7-8
Trip Computer................................................3-60
Turn and Lane-Change Signals.......................... 3-8
Turn Signal/Multifunction Lever........................... 3-7
Turn Signals When Towing a Trailer..................4-41
U
Ultrasonic Rear Parking Assist (URPA)...............3-22
Underbody Flushing Service.............................6-14
Underhood Fuse Block...................................5-100
16