2003 CHEVROLET TAHOE air conditioning

Operation Tips
·
Keep the hood and front air inlets free of ice, snow,
or any other obstruction (such as leaves). The
heater and defroster will work far better, reducing
the chance of fogging the inside of your windows.
·Keep the air path under the front seats clear
of objects. This helps air to circulate throughout your
vehicle.
·Adding outside equipment to the front of your
vehicle, such as hood-air de¯ectors, etc., may affect
the performance of the heating and air conditioning
system. Check with your dealer before adding
equipment to the outside of your vehicle.
Rear Air Conditioning System
If your vehicle is equipped with the optional rear air
conditioner it has two rear air conditioning fan speed
selectors. One fan speed selector is located in the
overhead console and the other is located in the
headliner above the second row seats.
To increase and decrease the ¯ow of cooled air to the
rear vents, turn the knob to the fan speed you want.
The knob has three speed positions. To increase
the ¯ow of cooled air, turn the knob clockwise. To
decrease the ¯ow of cooled air, turn it counterclockwise.
To turn the fan off, turn the knob to the off position.
To operate the rear system using the front control, just
turn the knob to the fan position you want.Front Control
3-31

To use the rear control, ®rst turn the front control to the
AUX position. Then, the rear control can be used to
increase and decrease the air¯ow.
Rear Air Conditioning and Heating
System
If your vehicle is equipped with this system, there are
two rear heat and air conditioning controls. One control
is located in the overhead console and the other is
located in the headliner above the second row seats.
The system can be controlled from the front controls as
well as the rear controls.
The front control has three knobs that control air¯ow
speed, temperature and air¯ow location. Rear Control
Front Control
3-32

Fan Knob
The fan knob on the left side of the control panel
adjusts the fan speed. To increase air¯ow, turn the knob
clockwise. To decrease air¯ow, turn it counterclockwise.
To turn the fan off, turn the knob to the off position.
9(Off):Turn the knob to this position to turn the rear
seat comfort controls on or off.
Temperature Knob
The middle knob on the control panel lets you select the
temperature of the air ¯owing into the passenger
area. Turn the knob clockwise toward the red area for
warmer air. Turn the knob counterclockwise toward
the blue area for cooler air.
Mode Knob
The right knob on the control panel allows you to
choose the direction of air delivery.
H(Vent):This setting directs the air through the
headliner outlets.
)(Bi-Level):Air is delivered through the ¯oor outlets
as well as the headliner outlets. The ¯ow can be
divided between vent and ¯oor outlets depending upon
where the knob is placed between the settings.
6(Floor):This setting directs most of the air through
the ¯oor outlets.
Rear Air Conditioning and Heating
System and Electronic Climate
Controls
If your vehicle is equipped with this system, there are
controls located in the overhead console and on
the back of the console in the rear seat area. The
system can be controlled from the overhead controls or
the rear controls.
Front Controls
3-34

Fuses Usage
SUNROOF Sunroof
SEO B2 Off-Road Lamps
4WSVent Solenoid
Canister/Quadrasteer Module
Power
RR HVAC Rear Climate Control
AUX PWRAuxiliary Power Outlet Ð
Console
IGN 1 Ignition Relay
PCM 1 Powertrain Control Module
ETC/ECMElectronic Throttle Control,
Electronic Brake Controller
IGN EInstrument Panel Cluster, Air
Conditioning Relay, Turn
Signal/Hazard Switch, Starter
Relay
RTD Ride Control
TRL B/U Backup Lamps Trailer Wiring
PCM BPowertrain Control Module,
Fuel Pump
F/PMP Fuel Pump (Relay)Fuses Usage
B/U LPBack-up Lamps, Automatic
Transmission Shift Lock
Control System
RR DEFOG Rear Window Defogger
HDLP-HI Headlamp High Beam Relay
PRIME Not Used
SIRSupplemental In¯atable
Restraint System
FRT PARKFront Parking Lamps,
Sidemarker Lamps
DRLDaytime Running Lamps
(Relay)
SEO IGN Rear Defog Relay
TBC IGN1 Truck Body Controller Ignition
HI HDLP-LT High Beam Headlamp-Left
LH HID Not Used
DRL Daytime Running Lamps
IPC/DICInstrument Panel
Cluster/Driver Information
Center
5-116

Fuses Usage
HVAC/ECAS Climate Control Controller
CIG LTR Cigarette Lighter
HI HDLP-RT High Beam Headlamp-Right
HDLP-LOW Headlamp Low Beam Relay
A/C COMP Air Conditioning Compressor
A/C COMPAir Conditioning Compressor
Relay
RR WPR Rear Wiper/Washer
RADIO Audio System
SEO B1Mid Bussed Electrical Center,
HomeLink, Rear Heated
Seats
LO HDLP-LT Headlamp Low Beam-Left
BTSIBrake Transmission Shift
Interlock System
CRANK Starting System
LO HDLP-RT Headlamp Low Beam-RightFuses Usage
FOG LP Fog Lamp Relay
FOG LP Fog Lamps
HORN Horn Fuse
HORN Horn Relay
W/S WASHWindshield and Rear Window
Washer Pump Relay
W/S WASHWindshield and Rear Window
Washer Pump
INFOOnStar/Rear Seat
Entertainment
RADIO AMP Radio Ampli®er
RH HID Not Used
EAP Electric Adjustable Pedals
TREC All-Wheel Drive Module
SBA Supplemental Brake Assist
5-117

Capacities
ApplicationCapacities
English Metric
Engine Oil with Filter
VORTECŸ 4800 V8 VIN V 6.0 quarts² 5.7 L²
VORTECŸ 5300 V8 VIN T 6.0 quarts² 5.7 L²
VORTECŸ 5300 V8 VIN Z (E-85) 6.0 quarts² 5.7 L²
VORTECŸ 6000 V8 VIN U 6.0 quarts² 5.7 L²
VORTECŸ 8100 V8 VIN G 6.5 quarts² 6.1 L²
Fuel Tank Capacity
Tahoe/Yukon 26.0 gallons 98.4 L
Suburban/Yukon XL (1500 Series) 31.0 gallons 117.3 L
Suburban/Yukon XL (2500 Series) 37.5 gallons 140.0 L
Air Conditioning Refrigerant Capacity
Tahoe/Yukon 2.71 lbs. 1.23 kg
Suburban/Yukon XL 3.0 lbs. 1.36 kg
²Oil ®lter should be changed at every oil change.
5-120

Engine Cooling System Inspection
Inspect the hoses and have them replaced if they
are cracked, swollen or deteriorated. Inspect all pipes,
®ttings and clamps; replace as needed. Clean the
outside of the radiator and air conditioning condenser.
To help ensure proper operation, a pressure test of
the cooling system and pressure cap is recommended
at least once a year.
Transfer Case and Front Axle
(Four-Wheel Drive) Inspection
Every 12 months or at engine oil change intervals,
check front axle and transfer case and add lubricant
when necessary. A ¯uid loss could indicate a problem;
check and have it repaired, if needed. On manual
shift transfer case, oil the control lever pivot point. Check
vent hose at transfer case for kinks and proper
installation. More frequent lubrication may be required
on off-road use.
Brake System Inspection
Inspect the complete system. Inspect brake lines and
hoses for proper hook-up, binding, leaks, cracks,
cha®ng, etc. Inspect disc brake pads for wear and rotors
for surface condition. Inspect other brake parts,
including calipers, parking brake, etc. You may need to
have your brakes inspected more often if your driving
habits or conditions result in frequent braking.
6-17

A
Accessory Power Outlets.................................3-19
Adding Washer Fluid.......................................5-44
Additional Program Information........................... 7-9
Additives, Fuel................................................. 5-6
Add-On Electrical Equipment...........................5-108
Adjustable Throttle and Brake Pedal..................2-24
Adjusting the Speakers (Balance/Fade).....3-75, 3-79,
3-90, 3-104
After Off-Road Driving.....................................4-40
Air Bag Systems.....................................1-73, 1-80
Adding Equipment to Your Air Bag-Equipped
Vehicle...................................................1-88
How Does an Air Bag Restrain?....................1-80
Passenger Sensing System...........................1-83
Servicing Your Air Bag-Equipped Vehicle.........1-87
What Makes an Air Bag In¯ate?....................1-80
What Will You See After an Air Bag In¯ates?......1-81
When Should an Air Bag In¯ate?...................1-79
Where Are the Air Bags?..............................1-76
Air Bag .........................................................3-39
Passenger Status Indicator...........................3-39
Readiness Light..........................................3-39
Air Cleaner/Filter, Engine.................................5-23
Air Conditioning..............................................3-28
All-Wheel Drive with Stabilitrak
ž........................2-34All-Wheel Drive...............................................5-55
AM-FM Radio.................................................3-73
AM .............................................................3-127
Antenna, Fixed Mast......................................3-129
Antenna, XMŸ Satellite Radio
Antenna System........................................3-129
Anti-Lock Brake, System Warning Light..............3-44
Anti-lock Brake System..................................... 4-7
Appearance Care............................................5-99
Care of Safety Belts...................................5-102
Chemical Paint Spotting..............................5-105
Cleaning the Inside of Your Vehicle................5-99
Cleaning the Outside of Your Vehicle............5-102
Finish Damage..........................................5-104
Sheet Metal Damage..................................5-104
Underbody Maintenance.............................5-105
Vehicle Care/Appearance Materials...............5-105
Weatherstrips............................................5-102
Approaching a Hill..........................................4-30
Ashtrays........................................................3-20
Audio Output................................................3-121
Audio System(s).............................................3-72
AM-FM Radio.............................................3-73
Audio Steering Wheel Controls....................3-126
Care of Your Cassette Tape Player...............3-127
Care of Your CD and DVD Player................3-129
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