2005 CHEVROLET ASTRO automatic transmission

Ignition Transmission Lock Check
While parked, and with the parking brake set, try to turn
the ignition to LOCK in each shift lever position.
The ignition should turn to LOCK only when the
shift lever is in PARK (P).
The key should come out only in LOCK.
Parking Brake and Automatic
Transmission Park (P) Mechanism
Check
{CAUTION:
When you are doing this check, your vehicle
could begin to move. You or others could be
injured and property could be damaged. Make
sure there is room in front of your vehicle in
case it begins to roll. Be ready to apply the
regular brake at once should the vehicle begin
to move.Park on a fairly steep hill, with the vehicle facing
downhill. Keeping your foot on the regular brake, set the
parking brake.
To check the parking brake’s holding ability: With
the engine running and transmission in
NEUTRAL (N), slowly remove foot pressure from
the regular brake pedal. Do this until the vehicle is
held by the parking brake only.
To check the PARK (P) mechanism’s holding ability:
With the engine running, shift to PARK (P). Then
release the parking brake followed by the regular
brake.
Underbody Flushing Service
At least every spring, use plain water to ush any
corrosive materials from the underbody. Take care to
clean thoroughly any areas where mud and other
debris can collect.
6-27

Usage Fluid/Lubricant
Parking Brake
Cable GuidesChassis Lubricant (GM Part No.
U.S. 12377985, in Canada
88901242) or lubricant meeting
requirements of NLGI #2,
Category LB or GC-LB.
Power Steering
SystemGM Power Steering Fluid
(GM Part No. U.S. 89021184, in
Canada 89021186).
Automatic
TransmissionDEXRON
®-III Automatic
Transmission Fluid. Look for
“Approved for the H-Specication”
on the label.
Key Lock
CylindersMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474).
Chassis
LubricationChassis Lubricant (GM Part No.
U.S. 12377985, in Canada
88901242) or lubricant meeting
requirements of NLGI #2,
Category LB or GC-LB.
Front Wheel
BearingsWheel bearing lubricant meeting
requirements of NLGI #2, Category
GC or GC-LB (GM Part No. U.S.
1051344, in Canada 993037).
Usage Fluid/Lubricant
Front AxleSAE 80W-90 Axle Lubricant
(GM Part No. U.S. 1052271,
in Canada 10950849).
Rear AxleSAE 75W-90 Synthetic Axle
Lubricant (GM Part No. U.S.
12378261, in Canada 10953455)
meeting GM Specication 9986115.
Transfer CaseAUTO-TRAK II Fluid
(GM Part No. U.S. 12378508,
in Canada 10953626).
Hood Latch
Assembly,
Secondary
Latch,
Pivots, Spring
Anchor and
Release PawlLubriplate Lubricant Aerosol
(GM Part No. U.S. 12346293,
in Canada 992723) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.
Hood and Door
HingesMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474).
Weatherstrip
ConditioningDielectric Silicone Grease
(GM Part No. U.S. 12345579,
in Canada 992887).
6-30

Audio System(s) (cont.)
Setting the Time for Radios with
HR and MN Buttons.................................3-40
Setting the Time for Radios with the
Set Button..............................................3-40
Theft-Deterrent Feature................................3-48
Understanding Radio Reception.....................3-50
Automatic Headlamp System............................3-16
Automatic Transmission
Fluid..........................................................5-23
Operation...................................................2-20
B
Battery..........................................................5-42
Run-Down Protection...................................3-17
Before Leaving on a Long Trip.........................4-20
Bench Seat....................................................1-11
Brake
Anti-Lock Brake System (ABS)........................ 4-7
Emergencies................................................ 4-8
Parking......................................................2-23
System Inspection.......................................6-29
System Warning Light..................................3-28
Brakes..........................................................5-38
Braking........................................................... 4-6
Braking in Emergencies..................................... 4-8
Break-In, New Vehicle.....................................2-16
Bucket Seats, Rear.........................................1-17Bulb Replacement...........................................5-50
Front Turn Signal and Parking Lamps.............5-54
Halogen Bulbs............................................5-50
Replacement Bulbs......................................5-56
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps........................................5-55
Buying New Tires...........................................5-67
C
California Fuel.................................................. 5-6
Canadian Owners................................................ ii
Capacities and Specications..........................5-101
Carbon Monoxide...........................2-26, 4-23, 4-34
Care of
Safety Belts................................................5-87
Your CD Player...........................................3-50
Your CDs ...................................................3-50
Center Rear Passenger Position, Safety Belts.....1-34
Chains, Tire...................................................5-71
Charging System Light....................................3-27
Check
Engine Light...............................................3-30
Gages Warning Light...................................3-35
Checking Things Under the Hood......................5-10
Chemical Paint Spotting...................................5-91
Child Restraints
Child Restraint Systems...............................1-46
Infants and Young Children...........................1-40
2

Engine (cont.)
Oil .............................................................5-13
Overheating................................................5-28
Starting......................................................2-18
Entry Lighting.................................................3-17
Event Data Recorders (EDR)............................7-10
Exit Lighting...................................................3-17
Extender, Safety Belt.......................................1-37
Exterior Lamps...............................................3-14
F
Filter
Engine Air Cleaner......................................5-21
Finish Damage...............................................5-91
Fixed Mast Antenna........................................3-50
Flash-to-Pass................................................... 3-8
Flat Tire........................................................5-71
Flat Tire, Changing.........................................5-72
Flat Tire, Storing.............................................5-82
Fluid
Automatic Transmission................................5-23
Power Steering...........................................5-36
Windshield Washer......................................5-37
Front Axle......................................................5-49
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Filling a Portable Fuel Container....................5-10Fuel (cont.)
Filling Your Tank........................................... 5-8
Fuels in Foreign Countries.............................. 5-7
Gage.........................................................3-36
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-5
Low Warning Light.......................................3-36
Regulator...................................................2-19
System Inspection.......................................6-28
Fuses
Fuses and Circuit Breakers...........................5-95
Instrument Panel Fuse Block.........................5-96
Underhood Fuse Block.................................5-98
Windshield Wiper.........................................5-94
GGage
Check Gages Warning Light..........................3-35
Engine Coolant Temperature.........................3-29
Fuel..........................................................3-36
Oil Pressure...............................................3-33
Speedometer..............................................3-25
Voltmeter Gage...........................................3-27
Garage Door Opener.......................................2-29
Gasoline
Octane........................................................ 5-5
Specications............................................... 5-5
GM Mobility Reimbursement Program.................. 7-6
5

Tires (cont.)
Wheel Replacement.....................................5-70
When It Is Time for New Tires......................5-66
Top Strap......................................................1-50
Top Strap Anchor Location...............................1-52
Tow/Haul Mode...............................................2-22
Tow/Haul Mode Light.......................................3-35
Towing
Recreational Vehicle.....................................4-34
Towing a Trailer..........................................4-34
Your Vehicle...............................................4-33
Transmission
Fluid, Automatic...........................................5-23
Transmission Operation, Automatic....................2-20
Trip Odometer................................................3-25
Turn and Lane-Change Signals.......................... 3-7
Turn Signal/Multifunction Lever........................... 3-7U
Understanding Radio Reception........................3-50
Uniform Tire Quality Grading............................5-68
V
Vehicle
Control........................................................ 4-5
Damage Warnings........................................... iv
Symbols......................................................... iv
Vehicle Data Collection and Event Data
Recorders..................................................7-10
Vehicle Identication
Number (VIN).............................................5-93
Service Parts Identication Label...................5-93
Ventilation Adjustment......................................3-21
Visors...........................................................2-15
Voltmeter Gage..............................................3-27
13