2004 CHEVROLET ASTRO CARGO VAN tow bar

Manual Lumbar
If your vehicle has this feature, there will be a knob
located on the inboard side of the driver’s and
passenger’s bucket seats.
Turn the knob toward the front of the vehicle to increase
lumbar support. Turn the knob toward the rear of the
vehicle to decrease lumbar support.
Reclining Seatbacks
There is a lever located on the inside of the seat to
adjust the seatback.
You can adjust the
seatback by lifting the
lever and leaning back.
Release the lever to
lock the seatback where
you want it. Pull up on
the lever, lean forward
and the seatback will go
to an upright position.
1-4

Weight of the Trailer Tongue
The tongue load (A) of any trailer is an important weight
to measure because it affects the total or gross weight of
your vehicle. The Gross Vehicle Weight (GVW) includes
the curb weight of the vehicle, any cargo you may carry in
it, and the people who will be riding in the vehicle. If you
have a lot of options, equipment, passengers or cargo in
your vehicle, it will reduce the tongue weight your vehicle
can carry, which will also reduce the trailer weight your
vehicle can tow. And if you will tow a trailer, you must add
the tongue load to the GVW because your vehicle will be
carrying that weight, too. SeeLoading Your Vehicle on
page 4-29for more information about your vehicle’s
maximum load capacity.The trailer tongue weight (A) should be 10 percent to
15 percent of the total loaded trailer weight, up to a
maximum of 200 lbs (92 kg) with a weight carrying
hitch. The trailer tongue weight (A) should be 10 percent
to 15 percent of the total loaded trailer weight, up to
a maximum of 750 lbs (341 kg) with a weight
distributing hitch.
After you’ve loaded your trailer, weigh the trailer
and then the tongue, separately, to see if the weights
are proper. If they aren’t, you may be able to get
them right simply by moving some items around in
the trailer.
Total Weight on Your Vehicle’s Tires
Be sure your vehicle’s tires are inated to the upper
limit for cold tires. You’ll nd these numbers on
the Certication/Tire label at the rear edge of the
driver’s door or seeLoading Your Vehicle on page 4-29.
Then be sure you don’t go over the GVW limit for
your vehicle, including the weight of the trailer tongue.
If you use a weight distributing hitch, make sure
you don’t go over the rear axle limit before you apply
the weight distribution spring bars.
4-38

K
Key Lock Cylinders Service..............................6-23
Keyless Entry System....................................... 2-4
Keys............................................................... 2-2
L
Lamps
Exterior......................................................3-12
Interior.......................................................3-14
Lamps On Reminder.......................................3-13
Lap Belt........................................................1-27
Lap-Shoulder Belt...................................1-18, 1-29
LATCH System
Child Restraints...........................................1-51
Securing a Child Restraint Designed
for the LATCH System..............................1-54
Latches, Seatback............................................ 1-6
Leaving Your Vehicle......................................... 2-9
Leaving Your Vehicle With the Engine
Running.....................................................2-27
Light
Air Bag Readiness.......................................3-25
Anti-Lock Brake System Warning...................3-28Light (cont.)
Brake System Warning.................................3-27
Charging System.........................................3-26
Check Gages Warning.................................3-34
Low Fuel Warning.......................................3-35
Malfunction Indicator....................................3-29
Safety Belt Reminder...................................3-24
Security.....................................................3-33
Service All-Wheel-Drive................................3-33
Tow/Haul Mode...........................................3-34
Loading Your Vehicle.......................................4-29
Locking Rear Axle............................................ 4-8
Locks
Door........................................................... 2-7
Leaving Your Vehicle..................................... 2-9
Power Door.................................................. 2-8
Programmable Automatic Door Locks............... 2-8
Long Trip/Highway Denition.............................. 6-6
Long Trip/Highway Intervals............................... 6-6
Long Trip/Highway Scheduled Maintenance........6-16
Loss of Control...............................................4-13
Low Fuel Warning Light...................................3-35
Luggage Carrier..............................................2-43
Lumbar
Manual Controls............................................ 1-4
8

M
Maintenance, Normal Replacement Parts..........5-109
Maintenance Schedule
At Each Fuel Fill.........................................6-22
At Least Once a Month................................6-22
At Least Once a Year..................................6-23
At Least Twice a Year..................................6-22
Brake System Inspection..............................6-27
Engine Cooling System Inspection.................6-26
Exhaust System Inspection...........................6-26
Fuel System Inspection................................6-26
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.............6-22
Part C - Periodic Maintenance Inspections......6-26
Part D - Recommended Fluids and
Lubricants...............................................6-28
Part E - Maintenance Record........................6-30
Selecting the Right Schedule.......................... 6-5
Short Trip/City Scheduled Maintenance............. 6-6Maintenance Schedule (cont.)
Steering, Suspension and Front Drive
Axle Boot and Seal Inspection...................6-26
Throttle System Inspection............................6-27
Transfer Case and Front Axle
(All-Wheel Drive) Inspection.......................6-27
Using Your................................................... 6-4
Your Vehicle and the Environment................... 6-2
Maintenance When Trailer Towing.....................4-44
Making Turns.................................................4-42
Malfunction Indicator Light................................3-29
Manual Lumbar Controls.................................... 1-4
Manual Seats................................................... 1-3
Manual Windows............................................2-15
Matching Transmitter(s) to Your Vehicle............... 2-6
Mexico, Central America and Caribbean
Islands/Countries (Except Puerto Rico and
U.S. Virgin Islands) – Customer Assistance....... 7-5
Mirrors
Manual Rearview Mirror................................2-31
Outside Convex Mirror.................................2-32
Outside Manual Mirror..................................2-31
Outside Power Mirrors..................................2-31
Model Reference................................................ vi
MyGMLink.com................................................ 7-4
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