2004 CHEVROLET ASTRO door lock

Fuse/Circuit
Breaker Usage
3 Courtesy Lamps, Glove Box Lamp,
Dome Reading Lamps, Vanity Mirror
Lamps, Courtesy Lamps
4 Daytime Running Lamps Relay,
Instrument Panel Cluster
5 Rear Defogger
6 Cruise Module, Truck Body Control
Module, Instrument Panel Cluster,
Cruise Control Switch,
Electrochromic Mirror
7 Power Outlets, Subwoofer Ampli®er
8 Crank Circuit Fuse, Park/Neutral
Switch, Starter Enabler Relay
9 License Plate Lamp, Tailamps,
Parking Lamps, Ashtray Lamp,
Panel Lights, Trailer Taillamps, Front
and Rear Sidemarker Lamps, Door
Switch Illumination, Headlamp
Switch Illumination, Rear Seat Audio
Illumination, Truck Body Control
Module
10 Air Bag System
11 Not UsedFuse/Circuit
Breaker Usage
12 Blower Motor, Rear Air Conditioning
Relay Coil, Front Cont. Temp. Door
Motor, HI Blower Relay, Defogger
Timer Coil
13 Cigarette Lighter, Door Lock
Switches, Dutch Door Release
Module
14 Cluster Illumination, Climate
Controls, Chime Module, Radio
Illumination, Rear Heat Switch
Illumination, Rear Wiper/Washer
Switch Illumination, Rear Liftgate
Switch Illumination, Remote
Cassette Illumination, Overhead
Console, Truck Body Control
Illumination
15 Truck Body Module, Headlamp
Relay
16 Front Turn Signals, Rear Turn
Signals, Trailer Turn Signals,
Back-Up Lamps, Brake
Transmission Shift Interlock Solenoid
17 Front Wipers, Front Washer Pump
5-98

Fuse/Circuit
Breaker Usage
18 VCM-Ign 3, VCM-Brake, Cruise
Stepper Motor Signal, ATC Module
19 Instrument Panel Radio: ATC (Main
Feed), 2000 Series (Standby)
20 PRNDL/Odometer, Shift A and Shift
B Solenoids, 3±2 Downshift
Solenoid, Instrument Panel Cluster,
VCM Module
21 Powr Adjust Mirrors
22 Not Used
23 Rear Wiper, Rear Washer Pump
24 Not Used
A (Circuit Breaker) Power Door Lock
Relay, 6±Way Power Seats
B (Circuit Breaker) Power WindowsUnderhood Fuse Block
The underhood fuse block is located toward the rear of
the engine compartment on the driver's side of the
vehicle.
Lift the hood and open the cover to gain access to this
fuse block.
A fuse puller is included in the underhood fuse block.
You will also ®nd spare fuses.
5-99

Wiper Blade Check
Inspect wiper blades for wear or cracking. Replace
blade inserts that appear worn or damaged or that
streak or miss areas of the windshield. Also see
Cleaning the Outside of Your Vehicle on page 5-83.
Spare Tire Check
At least twice a year, after the monthly in¯ation check of
the spare tire determines that the spare is in¯ated to
the correct tire in¯ation pressure, make sure that
the spare tire is stored securely. Push, pull, and then try
to rotate or turn the tire. If it moves, use the wheel
wrench to tighten the cable. See
Changing a Flat Tire
on page 5-68.
Weatherstrip Lubrication
Silicone grease on weatherstrips will make them last
longer, seal better, and not stick or squeak. Apply
silicone grease with a clean cloth. During very cold,
damp weather more frequent application may be
required. See
Part D: Recommended Fluids and
Lubricants on page 6-30.
Automatic Transmission Check
Check the transmission ¯uid level; add if needed. SeeAutomatic Transmission Fluid on page 5-21. A ¯uid loss
may indicate a problem. Check the system and repair
if needed.
At Least Once a Year
Key Lock Cylinders Service
Lubricate the key lock cylinders with the lubricant
speci®ed in Part D.
Body Lubrication Service
Lubricate all body door hinges, the body hood, fuel door
and rear compartment hinges, latches and locks
including interior glove box and console doors, hood
latch assembly, secondary latch, pivots, spring anchor,
release pawl and any moving seat hardware. Lubricate
the hood safety lever pivot and prop rod pivot. Part D
tells you what to use. More frequent lubrication may be
required when exposed to a corrosive environment.
6-25

Canceling the Sliding Door
Security Lock..............................................2-10
Capacities and Speci®cations..........................5-102
Carbon Monoxide...........................4-24, 4-35, 2-28
Care of
Safety Belts................................................5-89
Your CD Player...........................................3-50
Your CDs ...................................................3-50
Cargo Van Models..........................................1-50
Cargo Vans...........................................1-41, 1-48
CD Messages................................................3-45
Center Passenger Position, Safety Belts.............1-27
Chains, Tires..................................................5-74
Charging System Light....................................3-27
Check
Engine Light...............................................3-30
Gages Warning Light...................................3-36
Checking Brake Fluid......................................5-40
Checking Coolant............................................5-26
Checking Engine Oil........................................5-13
Checking Things Under the Hood....................... 5-9
Checking Your Restraint Systems......................1-70
Chemical Paint Spotting...................................5-93
Child Restraints
Child Restraint Systems...............................1-44
Infants and Young Children...........................1-38Child Restraints (cont.)
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-52
Older Children.............................................1-35
Securing a Child Restraint Designed for
the LATCH System...................................1-55
Securing a Child Restraint in a Center
Seat Position...........................................1-58
Securing a Child Restraint in a Rear
Outside Seat Position...............................1-55
Securing a Child Restraint in the Right
Front Seat Position...................................1-60
Top Strap...................................................1-48
Top Strap Anchor Location............................1-50
Where to Put the Restraint...........................1-47
Cigarette Lighter.............................................3-17
Cleaning
Inside of Your Vehicle..................................5-87
Outside of Your Vehicle................................5-90
Underbody Maintenance...............................5-93
Weatherstrips..............................................5-89
Cleaning Aluminum Wheels..............................5-92
Cleaning Exterior Lamps/Lenses.......................5-90
Cleaning Fabric/Carpet....................................5-87
Cleaning Glass Surfaces..................................5-89
Cleaning Interior Plastic Components.................5-89
3

Cleaning Leather............................................5-88
Cleaning the Top of the Instrument Panel...........5-89
Cleaning the Windshield and
Wiper Blades..............................................5-91
Cleaning Tires................................................5-92
Cleaning Vinyl................................................5-88
Climate Control System...................................3-18
Outlet Adjustment........................................3-20
Rear Air Conditioning System........................3-21
Rear Heating System...................................3-21
Compact Spare Tire........................................5-86
Composite Headlamps.....................................5-51
Control of a Vehicle.......................................... 4-6
Convenience Net............................................2-41
Coolant
Engine Temperature Gage............................3-30
Heater, Engine............................................2-20
Cooling System..............................................5-30
Cruise Control................................................3-10
Current and Past Model Order Forms................7-12
Customer Assistance Information
Courtesy Transportation.................................. 7-7
Customer Assistance for Text Telephone
(TTY) Users.............................................. 7-4
Customer Assistance Offices........................... 7-4
Customer Satisfaction Procedure..................... 7-2Customer Assistance Information (cont.)
GM Mobility Program for Persons with
Disabilities................................................ 7-5
Reporting Safety Defects to
General Motors........................................7-11
Reporting Safety Defects to the Canadian
Government............................................7-11
Reporting Safety Defects to the United
States Government...................................7-10
Roadside Assistance Program......................... 7-6
Service Publications Ordering Information........7-11
D
Daytime Running Lamps (DRL).........................3-14
Defensive Driving............................................. 4-2
Defogging and Defrosting.................................3-19
Directing the Air¯ow........................................3-22
Disabling the Theft-Deterrent Feature.................3-49
Doing Your Own Service Work........................... 5-3
Dome Lamps.................................................3-16
Door
Locks.......................................................... 2-6
Power Door Locks......................................... 2-7
Programmable Automatic Door Locks............... 2-7
Rear Doors.................................................2-11
Sliding Side Door.......................................... 2-9
4

Inspection (cont.)
Throttle System...........................................6-29
Transfer Case and Front Axle
(All-Wheel Drive)......................................6-29
Installing a Garage Door Opener.......................2-37
Instrument Panel
Cluster.......................................................3-24
Overview..................................................... 3-2
Instrument Panel Brightness Control..................3-15
Instrument Panel Fuse Block............................5-97
Interior Lamps................................................3-15
J
Jump Starting.................................................5-43
K
Key Lock Cylinders Service..............................6-25
Keys............................................................... 2-2
L
Lamps
Exterior......................................................3-12
Interior.......................................................3-15Lamps On Reminder.......................................3-14
Lap Belt........................................................1-27
Lap-Shoulder Belt...................................1-18, 1-29
LATCH System
Child Restraints...........................................1-52
Securing a Child Restraint Designed for the
LATCH System........................................1-55
Latches, Seatback............................................ 1-6
Leaving Your Vehicle......................................... 2-8
Leaving Your Vehicle With the Engine Running . . . 2-26
Light
Air Bag Readiness.......................................3-26
Anti-Lock Brake System Warning...................3-29
Brake System Warning.................................3-28
Charging System.........................................3-27
Check Gages Warning.................................3-36
Low Fuel Warning.......................................3-37
Malfunction Indicator....................................3-30
Safety Belt Reminder...................................3-26
Security.....................................................3-35
Service All-Wheel-Drive................................3-35
Tow/Haul Mode...........................................3-36
Loading Your Vehicle.......................................4-30
Locking Rear Axle............................................ 4-9
8

Locks
Door........................................................... 2-6
Leaving Your Vehicle..................................... 2-8
Power Door.................................................. 2-7
Programmable Automatic Door Locks............... 2-7
Long Trip/Highway De®nition.............................. 6-6
Long Trip/Highway Intervals............................... 6-6
Long Trip/Highway Scheduled Maintenance........6-16
Loss of Control...............................................4-13
Low Fuel Warning Light...................................3-37
Luggage Carrier..............................................2-41
Lumbar
Manual Controls............................................ 1-3
M
Maintenance, Normal Replacement Parts..........5-104
Maintenance Schedule
At Each Fuel Fill.........................................6-24
At Least Once a Month................................6-24
At Least Once a Year..................................6-25
At Least Twice a Year..................................6-24
Brake System Inspection..............................6-29
Engine Cooling System Inspection.................6-28
Exhaust System Inspection...........................6-28Maintenance Schedule (cont.)
Fuel System Inspection................................6-28
How This Section is Organized....................... 6-3
Introduction.................................................. 6-2
Long Trip/Highway Scheduled Maintenance.....6-16
Maintenance Requirements............................. 6-2
Part A - Scheduled Maintenance Services......... 6-4
Part B - Owner Checks and Services.............6-24
Part C - Periodic Maintenance Inspections......6-28
Part D - Recommended Fluids
and Lubricants.........................................6-30
Part E - Maintenance Record........................6-32
Selecting the Right Schedule.......................... 6-5
Short Trip/City Scheduled Maintenance............. 6-6
Steering, Suspension and Front Drive Axle
Boot and Seal Inspection..........................6-28
Throttle System Inspection............................6-29
Transfer Case and Front Axle (All-Wheel
Drive) Inspection......................................6-29
Using Your................................................... 6-4
Your Vehicle and the Environment................... 6-2
Maintenance When Trailer Towing.....................4-44
Making Turns.................................................4-42
Malfunction Indicator Light................................3-30
Manual Lumbar Controls.................................... 1-3
9

Part C - Periodic Maintenance Inspections..........6-28
Part D - Recommended Fluids and Lubricants....6-30
Part E - Maintenance Record...........................6-32
Passenger Van Models....................................1-51
Passing.................................................4-12, 4-42
Passlock
ž......................................................2-16
Payload.........................................................4-35
Plan Ahead When Possible................................ 7-7
Playing a CD.................................................3-43
Playing the Radio...................................3-39, 3-41
Power
Accessory Outlets........................................3-16
Door Locks.................................................. 2-7
Electrical System.........................................5-96
Seat............................................................ 1-3
Steering Fluid.............................................5-37
Windows....................................................2-15
Power Steering................................................ 4-9
Programmable Automatic Door Locks.................. 2-7
Programming the HomeLink
žTransmitter...........2-31
Q
Questions and Answers About Safety Belts.........1-17
R
Radiator Pressure Cap....................................5-27
Radios..........................................................3-38AM-FM Radio.............................................3-39
Care of Your CD Player...............................3-50
Care of Your CDs........................................3-50
Radio with CD............................................3-41
Rear Seat Audio..........................................3-46
Setting the Time for Radios with HR and
MN Buttons.............................................3-38
Setting the Time for Radios with the
Set Button..............................................3-38
Theft-Deterrent............................................3-47
Understanding Reception..............................3-50
Reading Lamps..............................................2-36
Rear Air Conditioning System...........................3-21
Rear Axle......................................................5-48
Locking........................................................ 4-9
Rear Doors....................................................2-11
Rear Heating System......................................3-21
Rear Safety Belt Comfort Guides......................1-32
Rear Seat Audio (RSA)....................................3-46
Rear Seat Operation......................................... 1-7
Rear Seat Outside Passenger Positions.............1-29
Rear Seat Passengers, Safety Belts..................1-29
Rear Window Defogger....................................3-19
Rearview Mirrors.............................................2-30
Reclining Seatbacks.......................................... 1-4
Recreational Vehicle Towing.............................4-29
Reinstalling the Engine Cover...........................5-21
Remote Keyless Entry System, Operation............ 2-4
Removing the Engine Cover.............................5-17
11