trailer CHEVROLET SILVERADO 2007 1.G Manual PDF

Engine Fan Noise
If your vehicle has a clutched engine cooling fan,
when the clutch is engaged, the fan spins
faster to provide more air to cool the engine. In
most everyday driving conditions, the fan is
spinning slower and the clutch is not fully engaged.
This improves fuel economy and reduces fan
noise. Under heavy vehicle loading, trailer towing,
and/or high outside temperatures, the fan speed
increases as the clutch more fully engages, so you
may hear an increase in fan noise. This is
normal and should not be mistaken as the
transmission slipping or making extra shifts. It is
merely the cooling system functioning properly.
The fan will slow down when additional cooling is
not required and the clutch disengages.
You may also hear this fan noise when you start
the engine. It will go away as the fan clutch
partially disengages.If your vehicle has electric cooling fans, you may
hear the fans spinning at low speed during most
everyday driving. The fans may turn off if no cooling
is required. Under heavy vehicle loading, trailer
towing, and/or high outside temperatures, or if you
are operating your air conditioning system, the fans
may change to high speed and you may hear an
increase in fan noise. This is normal and indicates
that the cooling system is functioning properly. The
fans will change to low speed when additional
cooling is no longer required.
Power Steering Fluid
SeeEngine
Compartment Overview
on page 500for
reservoir location.
526

Fuses Usage
1 Right Trailer Stop/Turn Lamp
2 Not Used
3Electronic Stability Suspension
Control, Automatic Level Control
ExhaustFuses Usage
4 Left Trailer Stop/Turn Lamp
5 Engine Controls
6Engine Control Module, Throttle
Control
7 Trailer Brake Controller
616

Fuses Usage
8 Front Washer
9 Oxygen Sensors
10 Anti-lock Brakes System 2
11 Trailer Back-up Lamps
12 Driver’s Side Low-Beam Headlamp
13 Engine Control Module (Battery)
14Fuel Injectors, Ignition Coils
(Right Side)
15Transmission Control Module
(Battery)
16 Vehicle Back-up Lamps
17Passenger’s Side Low-Beam
Headlamp
18 Air Conditioning Compressor
19 Oxygen Sensors
20 Transmission Controls (Ignition)Fuses Usage
21 Fuel Pump
22 Fuel System Control Module
23 Not Used
24 Not Used
25Fuel Injectors, Ignition Coils
(Left Side)
26 Trailer Park Lamps
27 Driver’s Side Park Lamps
28 Passenger’s Side Park Lamps
29 Fog Lamps
30 Horn
31Passenger’s Side High-Beam
Headlamp
32 Daytime Running Lamps
33 Driver’s Side High-Beam Headlamp
34 Not Used
617

J-Case Fuses Usage
59 Cooling Fan 1
60 Automatic Level Control Compressor
61 Heavy Duty Anti-lock Brake System
62 Cooling Fan 2
63 Anti-lock Brake System 1
64 Starter
65 Stud 2 (Trailer Brakes)
66 Left Bussed Electrical Center 1
67 Not Used
68 Heated Windshield Washer System
69 Four-Wheel Drive System
70Stud 1 (Trailer Connector Battery
Power) (Optional – 40A Fuse
Required)
71 Mid-Bussed Electrical Center 1
72 Climate Control Blower
73 Tailgate Open/Close Assist
74 Left Bussed Electrical Center 2Relays Usage
FAN HI Cooling Fan High Speed
FAN LO Cooling Fan Low Speed
ENG EXH VLV Not Used
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
619

(e)Make sure the safety belt reminder light and all
your belts, buckles, latch plates, retractors, and
anchorages are working properly. Look for
any other loose or damaged safety belt system
parts. If you see anything that might keep a safety
belt system from doing its job, have it repaired.
Have any torn or frayed safety belts replaced. Also
look for any opened or broken airbag coverings,
and have them repaired or replaced. The
airbag system does not need regular maintenance.
(f)Lubricate all key lock cylinders, body door
hinges, hood latch assembly, secondary latch,
pivots, spring anchor, release pawl, tailgate hinges,
tailgate linkage, tailgate handle pivot points,
latch bolt, fuel door hinge, locks, and folding seat
hardware. More frequent lubrication may be
required when exposed to a corrosive
environment. Applying silicone grease on
weatherstrips with a clean cloth will make them
last longer, seal better, and not stick or squeak.
(g)Check vent hose at transfer case for kinks and
proper installation. Check to be sure vent hose
is unobstructed, clear, and free of debris.(h)Change automatic transmission uid and lter
if the vehicle Gross Vehicle Weight Rating
(GVWR) is over 8600 lbs or if the vehicle is mainly
driven under one or more of these conditions:
In heavy city traffic where the outside
temperature regularly reaches 90°F (32°C) or
higher.
In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such as found in taxi, police or delivery
service.
(i)Drain, ush, and rell cooling system. This
service can be complex; you should have
your dealer perform this service. See Engine
Coolant on page 514 for what to use. Inspect
hoses. Clean radiator, condenser, pressure cap,
and ller neck. Pressure test the cooling
system and pressure cap.
(j)A uid loss in any vehicle system could indicate
a problem. Have the system inspected and
repaired and the uid level checked. Add uid
if needed.
634

(k)Inspect system. Check all fuel and vapor lines
and hoses for proper hook-up, routing, and
condition. Check that the purge valve, if the vehicle
has one, works properly. Replace as needed.
(l)Extreme Duty Service: Change transfer case
uid if the vehicle is mainly driven off-road in
four-wheel drive, or is used for heavy trailer towing.
Farming, mining, forestry, and Department of
Natural Resources (DNR) vehicles meet this
denition.
(m)During any maintenance, if a power washer is
used to clean mud and dirt from the underbody,
care should be taken to not directly spray the
transfer case output seals. High pressure water can
overcome the seals and contaminate the transfer
case uid. Contaminated uid will decrease the life
of the transfer case and should be replaced.
(n)Vehicles with diesel engine or with GVWR
above 10,000 lbs (4 536 kg) only: Inspect shields
for damage or looseness. Adjust or replace as
required. This is a Noise Emission Control Service.
Applicable to vehicles sold in the United States
and recommended for vehicles sold in Canada.
(p)If you drive regularly under dusty conditions,
inspect the lter or change indicator (if equipped)
at each engine oil change.(q)Visually inspect belt for fraying, excessive
cracks, or obvious damage. Replace belt if
necessary.
Owner Checks and Services
These owner checks and services should be
performed at the intervals specied to help
ensure the safety, dependability, and emission
control performance of your vehicle. Your
GM Goodwrench
®dealer can assist you with
these checks and services.
Be sure any necessary repairs are completed at
once. Whenever any uids or lubricants are added
to your vehicle, make sure they are the proper
ones, as shown inRecommended Fluids and
Lubricants on page 639.
At the First 100, 1,000 and
6,000 Miles (160, 1 600 and
10 000 km)
Check dual wheel nut torque. For proper torque,
seeCapacities and Specications on page 620.
635

Locks (cont.)
Lockout Protection................................... 122
Power Door............................................. 121
Programmable Automatic Door Locks....... 121
Rear Door Security Locks........................ 122
Loss of Control........................................... 391
Low Fuel Warning Light............................... 269
Luggage Carrier.......................................... 200
Lumbar
Manual Controls......................................... 11
Power Controls.......................................... 11
M
Maintenance Schedule
Additional Required Services.................... 631
At Each Fuel Fill...................................... 636
At Least Once a Month............................ 636
At Least Once a Year.............................. 637
At the First 100, 1,000 and 6,000 Miles
(160, 1 600 and 10 000km).................. 635
Introduction.............................................. 624
Maintenance Footnotes............................ 633
Maintenance Record................................ 644
Maintenance Requirements...................... 624
Normal Maintenance Replacement Parts.... 642Maintenance Schedule (cont.)
Owner Checks and Services.................... 635
Recommended Fluids and Lubricants....... 639
Scheduled Maintenance........................... 627
Using....................................................... 625
Your Vehicle and the Environment............ 625
Malfunction Indicator Light........................... 262
Manual Lumbar Controls............................... 11
Manual Seats.................................................. 9
Manual Windows......................................... 126
Memory Seat, Mirrors, and Pedals................ 13
Message
DIC Warnings and Messages................... 281
Mirrors
Automatic Dimming Rearview with
Compass and Temperature Display....... 175
Automatic Dimming Rearview with
OnStar
®, Compass and Temperature
Display................................................. 171
Manual Rearview Mirror........................... 171
Outside Manual Mirrors............................ 176
Outside Power Foldaway Mirrors.............. 179
Outside Power Mirrors............................. 178
Outside Trailer-Tow Mirrors....................... 177
MP3 ...................................................341, 347
MyGMLink.com............................................ 651
677

N
Navigation/Radio System, see Navigation
Manual..................................................... 357
New Vehicle Break-In.................................. 134
Noise Control System, Tampering................ 544
Normal Maintenance Replacement Parts..... 642
O
Odometer.................................................... 250
Odometer, Trip............................................ 250
Off-Road Driving.......................................... 392
Off-Road Recovery...................................... 389
Oil
Engine..................................................... 502
Pressure Gage......................................... 265
Pressure Light.......................................... 266
Oil, Engine Oil Life System......................... 505
Older Children, Restraints............................. 46
Online Owner Center................................... 651
OnStar
®System, see OnStar®Manual........ 182
Operation, Universal Home Remote
System............................................187, 191
Other Warning Devices................................ 213
Outlet Adjustment........................................ 247Outlets
Accessory Power..................................... 234
Outside
Manual Mirrors......................................... 176
Power Foldaway Mirrors........................... 179
Power Mirrors.......................................... 178
Trailer-Tow Mirrors................................... 177
Overheated Engine Protection Operating
Mode....................................................... 520
Owner Checks and Services....................... 635
Owners, Canadian.......................................... 3
P
Paint, Damage............................................ 608
Park Aid...................................................... 230
Park (P)
Shifting Into............................................. 165
Shifting Out of......................................... 167
Parking
Assist....................................................... 230
Brake....................................................... 164
Over Things That Burn............................ 168
Passenger Airbag Status Indicator............... 254
Passenger Sensing System........................... 99
678

Tires (cont.)
Tire Terminology and Denitions............... 558
Uniform Tire Quality Grading.................... 575
Wheel Alignment and Tire Balance........... 576
Wheel Replacement................................. 576
When It Is Time for New Tires................. 571
Tow/Haul Mode........................................... 146
Tow/Haul Mode Light................................... 268
Towing
Recreational Vehicle................................. 442
Towing a Trailer....................................... 447
Your Vehicle............................................. 441
Traction
StabiliTrak
®System................................. 384
Trailer
Recommendations.................................... 484
Transmission
Fluid, Automatic....................................... 510
Transmission Operation, Automatic.............. 140
Trip Odometer............................................. 250
Truck-Camper Loading Information.............. 438
Turn and Lane-Change Signals................... 215
Turn Signal/Multifunction Lever.................... 214
U
Ultrasonic Rear Parking Assist (URPA)........ 230
Understanding Radio Reception................... 371
Uniform Tire Quality Grading....................... 575
Universal Home Remote System................. 187
Operation........................................187, 191
System Identication................................ 186
V
Vehicle
Control..................................................... 380
Damage Warnings....................................... 5
Loading.................................................... 427
Symbols...................................................... 5
Vehicle Customization, DIC......................... 291
Vehicle Data Collection and Event Data
Recorders................................................ 659
Vehicle Identication
Number (VIN).......................................... 610
Service Parts Identication Label.............. 611
Vehicle Privacy............................................ 659
Ventilation Adjustment.................................. 247
683