2004 CHEVROLET ASTRO CARGO VAN door lock

Front Turn Signal Lamps
1. Remove the two screws at the inside edge of
the parking/turn signal lamp assembly.
2. Remove the lamp assembly.
3. Squeeze the tab
on the side of the
lamp socket while
turning the socket
counterclockwise.
4. Pull the socket out of the lamp assembly.
5. Pull the bulb from the socket.
6. Gently push the new bulb into the socket.
7. Put the socket back into the lamp assembly and
turn it clockwise until it locks.
8. Put the parking/turn signal lamp assembly back
into the vehicle and tighten the screws.
Taillamps
1. Open the rear door.
2. Remove the
two screws from
behind the door.
5-57

The ratchet has
an UP side.
It also has a
DOWN side.
4. Attach the ratchet to the extension, with the DOWN
side facing you. The extension has a socket end
and a at chisel end.5. Put the at end of the extension on an angle
through the hole in the rear door frame, above
the bumper. Be sure the at end connects into
the hoist shaft.
6. Turn the ratchet counterclockwise to lower the
compact spare tire to the ground. Keep turning
the ratchet until the spare tire can be pulled out
from under the vehicle.
5-81

Notice:Improperly tightened wheel nuts can lead
to brake pulsation and rotor damage. To avoid
expensive brake repairs, evenly tighten the wheel
nuts in the proper sequence and to the proper
torque specication. SeeCapacities and
Specifications on page 5-107for the wheel nut
torque specication.
13. Remove the wheel blocks.
Notice:Wheel covers will not t on your compact
spare. If you try to put a wheel cover on the compact
spare, you could damage the cover or the spare.
Storing a Flat or Spare Tire and Tools
{CAUTION:
Storing a jack, a tire, or other equipment in
the passenger compartment of the vehicle
could cause injury. In a sudden stop or
collision, loose equipment could strike
someone. Store all these in the proper place.1. Put the at tire on the ground at the rear of the
vehicle with the valve stem pointed down.
2. Tilt the retainer plate downward and through the
wheel opening. Make sure it is fully seated across
the underside of the wheel. Attach the ratchet,
with the UP side facing you, to the extension.
3. Put the at end of the extension on an angle
through the hole in the rear door frame, above
the bumper.
The compact spare is for temporary use only.
Replace the compact spare tire with a full-size tire
as soon as you can. SeeCompact Spare Tire
on page 5-90. See the storage instructions label
to restore your compact spare properly.
4. Raise the tire fully against the underside of the
vehicle by turning the ratchet/wheel wrench until
you hear two clicks or feel it skip twice. The spare
tire hoist cannot be overtightened.
5-89

Fuse/Circuit
BreakerUsage
1Stop/Turn/Hazard Lamps,
Center High Mounted Stop Lamp,
Anti-Lock Brakes
2Radio Accessory, Rear Seat
Audio Controls
Fuse/Circuit
BreakerUsage
3Courtesy Lamps, Glove Box Lamp,
Dome Reading Lamps, Vanity
Mirror Lamps, Courtesy Lamps
4Daytime Running Lamps Relay,
Instrument Panel Cluster
5 Rear Defogger
6Cruise Module, Truck Body
Control Module, Instrument Panel
Cluster, Cruise Control Switch,
Electrochromic Mirror
7 Power Outlets, Subwoofer Amplier
8Crank Circuit Fuse, Park/Neutral
Switch, Starter Enabler Relay
9License Plate Lamp, Taillamps,
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
5-102

Fuse/Circuit
BreakerUsage
11 Not Used
12Blower Motor, Rear Air Conditioning
Relay Coil, Front Cont. Temp.
Door Motor, HI Blower Relay,
Defogger Timer Coil
13Cigarette Lighter, Door Lock
Switches, Dutch Door
Release Module
14Cluster 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
15Truck Body Module,
Headlamp Relay
16Front Turn Signals, Rear
Turn Signals, Trailer Turn
Signals, Back-Up Lamps,
Brake Transmission Shift
Interlock SolenoidFuse/Circuit
BreakerUsage
17 Front Wipers, Front Washer Pump
18VCM-Ign 3, VCM-Brake,
Cruise Stepper Motor Signal,
ATC Module
19Instrument Panel Radio: ATC
(Main Feed), 2000 Series (Standby)
20PRNDL/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 Windows
5-103

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 5-95.
Spare Tire Check
At least twice a year, after the monthly ination check
of the spare tire determines that the spare is inated
to the correct tire ination 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. SeeChanging a Flat Tire
on page 5-78.
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. SeePart D: Recommended Fluids and
Lubricants on page 6-28.
Automatic Transmission Check
Check the transmission uid level; add if needed.
SeeAutomatic Transmission Fluid on page 5-23.
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
specied 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.
6-23

Automatic Transmission
Fluid..........................................................5-23
Operation...................................................2-22
Automatic Transmission Check..........................6-23
Automatic Transmission Shift Lock Control
System Check.............................................6-24
B
Backing Up....................................................4-42
Battery..........................................................5-44
Battery Replacement......................................... 2-6
Battery Run-Down Protection............................3-15
Before Leaving on a Long Trip.........................4-20
Bench Seat............................................1-10, 1-56
Body Lubrication Service..................................6-23
Brake
Parking......................................................2-25
System Inspection.......................................6-27
System Warning Light..................................3-27
Brake Adjustment............................................5-43
Brake Fluid....................................................5-40
Brake Pedal Travel.........................................5-43
Brake Wear...................................................5-42
Brakes..........................................................5-40
Braking........................................................... 4-6
Braking in Emergencies..................................... 4-8Break-In, New Vehicle.....................................2-18
Bucket Seats, Rear.........................................1-12
Bulb Replacement...........................................5-53
Front Turn Signal Lamps..............................5-57
Halogen Bulbs............................................5-53
Headlamps.................................................5-53
Replacement Bulbs......................................5-59
Taillamps....................................................5-57
Buying New Tires...........................................5-73
C
California Fuel.................................................. 5-5
Canada – Customer Assistance.......................... 7-5
Canadian Owners................................................ ii
Canadian Roadside Assistance........................... 7-7
Canceling the Sliding Door Security Lock...........2-11
Capacities and Specications..........................5-107
Carbon Monoxide...........................2-29, 4-24, 4-35
Care of
Safety Belts................................................5-94
Your CD Player...........................................3-47
Your CDs ...................................................3-47
Cargo Van.....................................................1-49
Cargo Vans...........................................1-41, 1-47
CD Messages................................................3-42
Center Passenger Position, Safety Belts.............1-27
2

Cruise Control.................................................. 3-9
Current and Past Model Order Forms................7-13
Customer Assistance Information
Courtesy Transportation.................................. 7-8
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.......................................... 7-6
Reporting Safety Defects to
General Motors........................................7-12
Reporting Safety Defects to the
Canadian Government..............................7-11
Reporting Safety Defects to the
United States Government.........................7-11
Roadside Assistance Program......................... 7-6
Service Publications Ordering Information........7-12
D
Daytime Running Lamps (DRL).........................3-13
Defensive Driving............................................. 4-2
Defogging and Defrosting.................................3-18
Directing the Airow........................................3-21Disabling the Theft-Deterrent Feature.................3-46
Doing Your Own Service Work........................... 5-3
Dome Lamps.................................................3-15
Door
Locks.......................................................... 2-7
Power Door Locks......................................... 2-8
Programmable Automatic Door Locks............... 2-8
Rear Doors.................................................2-12
Sliding Side Door.......................................... 2-9
Driver
Position, Safety Belt.....................................1-18
Driver Information System................................2-40
Driving
At Night.....................................................4-14
City...........................................................4-18
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Freeway.....................................................4-19
Hill and Mountain Roads..............................4-22
In Rain and on Wet Roads...........................4-15
Winter........................................................4-24
Driving On Grades..........................................4-43
Driving on Snow or Ice....................................4-24
Driving Through Deep Standing Water...............4-17
Driving Through Flowing Water.........................4-17
Driving with a Trailer.......................................4-41
4