2005 CHEVROLET ASTRO CARGO VAN climate control

To direct the airow to the rear seating area, use the
right knob located on the main climate control panel.
Generally the upper outlets are used for air conditioning
and the oor outlets are used for heating.
9(Fan):Move the thumbwheel up or down to HIGH,
MED (Medium) or LOW to increase or decrease the
fan speed in the rear seating area. Move the
thumbwheel to OFF to turn off the fan.To increase or decrease the temperature for the entire
vehicle, use the center knob located on the main
climate control panel.
The air conditioning system on the main climate control
panel must be turned on to direct cooled air to the
rear of the vehicle. If it is not on, then the temperature
in the rear of the vehicle will remain at cabin
temperature.
Be sure to keep the area under the front seats clear of
any objects so that the air inside of your vehicle can
circulate effectively.
For information on how to use the main climate control
system, seeClimate Control System on page 3-19.
For information on ventilation, seeOutlet Adjustment on
page 3-21.
3-23

Driving with a Trailer
{CAUTION:
If you have a rear-most window open and you
pull a trailer with your vehicle, carbon
monoxide (CO) could come into your vehicle.
You can not see or smell CO. It can cause
unconsciousness or death. SeeEngine
Exhaust on page 2-26. To maximize your safety
when towing a trailer:
Have your exhaust system inspected for
leaks, and make necessary repairs before
starting on your trip.
Keep the rear-most windows closed.
If exhaust does come into your vehicle
through a window in the rear or another
opening, drive with your front, main
heating or cooling system on and with the
fan on any speed. This will bring fresh,
outside air into your vehicle. Do not use
the climate control setting for maximum air
because it only recirculates the air inside
your vehicle. See Climate Control System
in the Index.Towing a trailer requires a certain amount of experience.
Before setting out for the open road, you’ll want to get
to know your rig. Acquaint yourself with the feel of
handling and braking with the added weight of the trailer.
And always keep in mind that the vehicle you are
driving is now a good deal longer and not nearly as
responsive as your vehicle is by itself.
Before you start, check the trailer hitch and platform
(and attachments), safety chains, electrical connector,
lamps, tires and mirror adjustment. If the trailer has
electric brakes, start your vehicle and trailer moving and
then apply the trailer brake controller by hand to be
sure the brakes are working. This lets you check your
electrical connection at the same time.
During your trip, check occasionally to be sure that the
load is secure, and that the lamps and any trailer
brakes are still working.Following Distance
Stay at least twice as far behind the vehicle ahead as
you would when driving your vehicle without a trailer.
This can help you avoid situations that require
heavy braking and sudden turns.
4-41

Uniform Tire Quality Grading
Quality grades can be found where applicable on the
tire sidewall between tread shoulder and maximum
section width. For example:
Treadwear 200 Traction AA Temperature A
The following information relates to the system
developed by the United States National Highway
Traffic Safety Administration, which grades tires by
treadwear, traction and temperature performance. (This
applies only to vehicles sold in the United States.)
The grades are molded on the sidewalls of most
passenger car tires. The Uniform Tire Quality Grading
system does not apply to deep tread, winter-type
snow tires, space-saver or temporary use spare tires,
tires with nominal rim diameters of 10 to 12 inches
(25 to 30 cm), or to some limited-production tires.
While the tires available on General Motors passenger
cars and light trucks may vary with respect to these
grades, they must also conform to federal safety
requirements and additional General Motors Tire
Performance Criteria (TPC) standards.
Treadwear
The treadwear grade is a comparative rating based on
the wear rate of the tire when tested under controlled
conditions on a specied government test course.
For example, a tire graded 150 would wear one and
a half (1.5) times as well on the government course as
a tire graded 100. The relative performance of tires
depends upon the actual conditions of their use,
however, and may depart signicantly from the norm
due to variations in driving habits, service practices and
differences in road characteristics and climate.
Traction – AA, A, B, C
The traction grades, from highest to lowest, are AA, A,
B, and C. Those grades represent the tire’s ability
to stop on wet pavement as measured under controlled
conditions on specied government test surfaces of
asphalt and concrete. A tire marked C may have poor
traction performance. Warning: The traction grade
assigned to this tire is based on straight-ahead braking
traction tests, and does not include acceleration,
cornering, hydroplaning, or peak traction characteristics.
5-66

Fuse/Circuit
BreakerUsage
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
Solenoid
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)Fuse/Circuit
BreakerUsage
20PRNDL/Odometer, Shift A and Shift
B Solenoids, 3–2 Downshift
Solenoid, Instrument Panel Cluster,
VCM Module
21 Power Adjust Mirrors
22 Not Used
23 Rear Wiper, Rear Washer Pump
24 Not Used
Circuit
BreakersUsage
APower Door Lock Relay, 6–Way
Power Seats
B Power Windows
5-95

Fuse/Circuit
BreakerUsage
BATTPower Accessory Circuit Breaker,
Stop/Hazard Fuse, Auxiliary Power
Fuse, Cigarette Lighter Fuse, Radio
Battery Fuse
IGN A Starter Relay, Ignition Switch
IGN B Ignition Switch
ABSElectronic Brake
Control Module
BLANK Not Used
RAP Radio Accessory, Power Windows
HTD MIR/RR
DEFOGRear Window Defogger,Climate
Control HeadRelays Usage
A/C RELAY Rear/Heat and Air Conditioning
UPFITTER-
ACCY RELAYUptter Accessory
STARTER
ENABLE
RELAYStarter
A/C ENABLE
RELAYAir Conditioning
HEAD LAMPS
RELAYHeadlamps
FUEL PUMP
RELAYFuel Pump
Feed Usage
AUX B Uptter Battery Feed
AUX A Uptter Accessory Feed
5-98

Check
Engine Light...............................................3-31
Gages Warning Light...................................3-36
Checking Things Under the Hood......................5-10
Chemical Paint Spotting...................................5-89
Child Restraints
Child Restraint Systems...............................1-42
Infants and Young Children...........................1-36
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-50
Older Children.............................................1-33
Securing a Child Restraint Designed for the
LATCH System........................................1-52
Securing a Child Restraint in a Center Rear
Seat Position...........................................1-55
Securing a Child Restraint in a Rear Outside
Seat Position...........................................1-53
Securing a Child Restraint in the Right Front
Seat Position...........................................1-57
Top Strap...................................................1-46
Top Strap Anchor Location............................1-48
Where to Put the Restraint...........................1-45
Cigarette Lighter.............................................3-18
Cleaning
Aluminum Wheels........................................5-88
Exterior Lamps/Lenses.................................5-86
Fabric/Carpet..............................................5-84
Finish Care.................................................5-87
Inside of Your Vehicle..................................5-83Cleaning (cont.)
Instrument Panel, Vinyl, and Other Plastic
Surfaces.................................................5-85
Leather......................................................5-85
Tires..........................................................5-88
Underbody Maintenance...............................5-89
Washing Your Vehicle...................................5-86
Weatherstrips..............................................5-86
Windshield and Wiper Blades........................5-87
Climate Control System...................................3-19
Outlet Adjustment........................................3-21
Rear Air Conditioning System........................3-22
Rear Heating System...................................3-22
Comfort Guides, Rear Safety Belt.....................1-31
Compact Spare Tire........................................5-82
Control of a Vehicle.......................................... 4-5
Convenience Net............................................2-38
Coolant
Engine Temperature Gage............................3-30
Heater, Engine............................................2-19
Cooling System..............................................5-30
Cruise Control................................................3-11
Customer Assistance Information
Courtesy Transportation.................................. 7-7
Customer Assistance for Text
Telephone (TTY) Users............................... 7-4
Customer Assistance Offices........................... 7-4
Customer Satisfaction Procedure..................... 7-2
GM Mobility Reimbursement Program............... 7-5
3