2009 CHEVROLET SILVERADO climate control

If either the CHECK TRAILER WIRING or SERVICE
TRAILER BRAKE SYSTEM message is displayed while
driving the vehicle, power is no longer available to
the trailer brakes. When traffic conditions allow, carefully
pull the vehicle over to the side of the road and turn
the ignition off. Check the wiring connection to the trailer
and turn the ignition back on. If either of these
messages continues, either the vehicle or trailer needs
service.
An authorized GM dealer may be able to diagnose and
repair problems with the trailer. However, any
diagnosis and repair of the trailer is not covered under
the vehicle warranty. Please contact your trailer
dealer for assistance with trailer repairs and trailer
warranty information.Driving with a Trailer
{CAUTION:
When towing a trailer, exhaust gases may collect
at the rear of the vehicle and enter if the liftgate,
trunk/hatch, or rear-most window is open.
Engine exhaust contains carbon monoxide (CO)
which cannot be seen or smelled. It can cause
unconsciousness and even death.
To maximize safety when towing a trailer:
Have the exhaust system inspected for
leaks and make necessary repairs before
starting a trip.
Never drive with the liftgate, trunk/hatch, or
rear-most window open.
Fully open the air outlets on or under the
instrument panel.
Adjust the Climate Control system to a setting
that brings in only outside air and set the fan
speed to the highest setting. See Climate
Control System in the Index.
For more information about carbon monoxide, see
Engine Exhaust on page 2-55.
4-76

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.
5-87

Fuses Usage
5Dome Lamps, Driver Side Turn
Signal
6 Driver Side Turn Signal, Stoplamp
7 Instrument Panel Back Lighting
8Passenger Side Turn Signal,
Stoplamp
9Passenger Door Module, Driver
Unlock
10 Power Door Lock 2 (Unlock Feature)
11 Power Door Lock 2 (Lock Feature)
12Stoplamps, Center-High Mounted
Stoplamp
13 Rear Climate Controls
14 Power Mirror
15 Body Control Module (BCM)
16 Accessory Power Outlets
17 Interior Lamps
18 Power Door Lock 1 (Unlock Feature)
19 Rear Seat Entertainment
20Ultrasonic Rear Parking Assist,
Power LiftgateFuses Usage
21 Power Door Lock 1 (Lock Feature)
22 Driver Information Center (DIC)
23 Rear Wiper
24 Cooled Seats
25Driver Seat Module, Remote
Keyless Entry System
26Driver Power Door Lock
(Unlock Feature)
Circuit Breaker Usage
LT DRDriver Side Power Window Circuit
Breaker
Harness
ConnectorUsage
LT DR Driver Door Harness Connection
BODY Harness Connector
BODY Harness Connector
5-125

Fuses Usage
7 Front Washer
8 Oxygen Sensor
9 Antilock Brakes System 2
10 Trailer Back-up Lamps
11 Driver Side Low-Beam Headlamp
12 Engine Control Module (Battery)
13Fuel Injectors, Ignition Coils
(Right Side)
14Transmission Control Module
(Battery)
15 Vehicle Back-up Lamps
16Passenger Side Low-Beam
Headlamp
17 Air Conditioning Compressor
18 Oxygen Sensors
19 Transmission Controls (Ignition)
20 Fuel Pump
21 Fuel System Control Module
22 Not Used
23 Not Used
24Fuel Injectors, Ignition Coils
(Left Side)
25 Trailer Park Lamps
26 Driver Side Park LampsFuses Usage
27 Passenger Side Park Lamps
28 Fog Lamps
29 Horn
30Passenger Side High-Beam
Headlamp
31 Daytime Running Lamps
32 Driver Side High-Beam Headlamp
33 Daytime Running Lights 2
34 Sunroof
35Key Ignition System, Theft Deterrent
System
36 Windshield Wiper
37 SEO B2 Uptter Usage (Battery)
38 Electric Adjustable Pedals
39 Climate Controls (Battery)
40 Airbag System (Ignition)
41 Amplier
42 Audio System
43Miscellaneous (Ignition), Cruise
Control
44 Not Used
45 Airbag System (Battery)
46 Instrument Panel Cluster
47 Power Take-Off
5-128

Fuses Usage
48Auxiliary Climate Control (Ignition),
Compass-Temperature Mirror
49Center High-Mounted Stoplamp
(CHMSL)
50 Rear Defogger
51 Heated Mirrors
52 SEO B1 Uptter Usage (Battery)
53Cigarette Lighter, Auxiliary Power
Outlet
54Automatic Level Control Compressor
Relay, SEO Uptter Usage
55 Climate Controls (Ignition)
56Engine Control Module, Secondary
Fuel Pump (Ignition)
J-Case Fuses Usage
57 Cooling Fan 1
58 Not Used
59 Heavy Duty Antilock Brake System
60 Cooling Fan 2
61 Antilock Brake System 1
62 Starter
63 Stud 2 (Trailer Brakes)
64 Left Bussed Electrical Center 1
65 Not Used
J-Case Fuses Usage
66 Heated Windshield Washer System
67 Four-Wheel Drive System
68Stud 1 (Trailer Connector Battery
Power) (Optional - 40A Fuse
Required)
69 Mid-Bussed Electrical Center 1
70 Climate Control Blower
71 Not Used
72 Left Bussed Electrical Center 2
Relays Usage
FAN HI Cooling Fan High Speed
FAN LO Cooling Fan Low Speed
FAN CNTRL Cooling Fan Control
HDLP LO/HID Low-Beam Headlamp
FOG LAMP Front Fog Lamps
A/C CMPRSR Air Conditioning Compressor
STRTR Starter
PWR/TRN Powertrain
FUEL PMP Fuel Pump
PRK LAMP Parking Lamps
REAR DEFOG Rear Defogger
RUN/CRANK Switched Power
5-129

Capacities and Specications..........................5-130
Carbon Monoxide...........................2-12, 2-55, 4-28
Care of
Safety Belts..............................................5-117
Cargo Lamp...................................................3-21
Cargo Management System.............................2-83
CD, MP3 ............................................3-108, 3-113
Center Console Storage Area...........................2-82
Center High-Mounted Stoplamp (CHMSL) and
Cargo Lamp...............................................5-59
Center Seat...................................................1-14
Chains, Tire...................................................5-90
Charging System Light....................................3-41
Check
Engine Lamp..............................................3-45
Checking Things Under the Hood......................5-12
Chemical Paint Spotting.................................5-121
Child Restraints
Child Restraint Systems...............................1-45
Infants and Young Children...........................1-41
Lower Anchors and Tethers for Children..........1-49
Older Children.............................................1-38
Securing a Child Restraint in a Rear Seat
Position..................................................1-58Child Restraints (cont.)
Securing a Child Restraint in the Center
Front Seat Position...................................1-61
Securing a Child Restraint in the Right
Front Seat Position..................1-61, 1-66, 1-71
Where to Put the Restraint...........................1-47
Cigarette Lighter.............................................3-23
Cleaning
Aluminum or Chrome-Plated Wheels.............5-120
Exterior Lamps/Lenses................................5-118
Fabric/Carpet............................................5-116
Finish Care...............................................5-119
Instrument Panel, Vinyl, and Other Plastic
Surfaces...............................................5-117
Interior.....................................................5-114
Leather....................................................5-116
Tires........................................................
5-121
Underbody Maintenance.............................5-121
Washing Your Vehicle.................................5-118
Weatherstrips............................................5-117
Windshield and Wiper Blades......................5-119
Climate Control System...........................3-24, 3-26
Dual Automatic............................................3-28
Outlet Adjustment........................................3-33
3

Driving (cont.)
Highway Hypnosis.......................................4-26
Hill and Mountain Roads..............................4-27
In Rain and on Wet Roads...........................4-25
Off-Road ....................................................4-12
Recovery Hooks..........................................4-31
Rocking Your Vehicle to Get it Out.................4-30
Winter........................................................4-28
Driving for Better Fuel Economy......................... 4-2
Dual Automatic Climate Control System.............3-28
Dual Tire Operation.........................................5-75
DVD
Rear Seat Entertainment System..................3-129
E
EDR .............................................................7-16
Electrical System
Add-On Equipment.....................................5-123
Center Instrument Panel Fuse Block.............5-126
Fuses and Circuit Breakers.........................5-123
Instrument Panel Fuse Block.......................5-124
Power Windows and Other Power Options....5-123
Underhood Fuse Block...............................5-127
Windshield Wiper Fuses.............................5-123Electronic Immobilizer
PASS-Key
®III+...........................................2-19
Electronic Immobilizer Operation
PASS-Key
®III+...........................................2-19
Engine
Air Cleaner/Filter.........................................5-19
Check and Service Engine Soon Lamp...........3-45
Coolant......................................................5-29
Coolant Heater............................................2-26
Coolant Temperature Gage...........................3-44
Drive Belt Routing.......................................6-18
Engine Compartment Overview......................5-14
Exhaust.....................................................2-55
Fan Noise..................................................5-37
Fast Idle System.........................................2-25
Oil .............................................................5-15
Oil Life System...........................................5-18
Overheated Protection Operating Mode...........5-37
Overheating................................................5-34
Starting......................................................2-23
Entry Lighting.................................................3-20
Event Data Recorders.....................................7-17
Exit Lighting...................................................3-20
Extender, Safety Belt.......................................1-37
Exterior Lamps...............................................3-16
5