towing CHEVROLET SUBURBAN 2007 10.G Owner's Guide

Heavy-Duty Trailer Wiring Harness
Package
Your vehicle is equipped with the seven-wire
trailer towing harness. This harness with a
seven-pin universal trailer connector is attached to
a bracket on the hitch platform.The seven-wire harness contains the following
trailer circuits:
Yellow: Left Stop/Turn Signal
Dark Green: Right Stop/Turn Signal
Brown: Taillamps
White: Ground
Light Green: Back-up Lamps
Red: Battery Feed*
Dark Blue: Trailer Brake*
*The fuses for these two circuits are installed in
the underhood electrical center, but the wires
are not connected. They should be connected by
your dealer or a qualied service center.
If you are charging a remote (non-vehicle) battery,
press the tow/haul mode button located at the
end of the shift lever. This will boost the vehicle
system voltage and properly charge the battery. If
the trailer is too light for tow/haul mode, you
can turn on the headlamps as a second way to
boost the vehicle system and charge the battery.
439

Electric Brake Control Wiring
Provisions
These wiring provisions are included with your
vehicle as part of the trailer wiring package. These
provisions are for an electric brake controller. The
instrument panel contains blunt cut wires near the
data link connector for the trailer brake controller.
The harness contains the following wires:
Dark Blue: Brake Signal to Trailer Connector
Red/Black: Battery
Light Blue/White: Brake Switch
White: Ground
It should be installed by your dealer or a qualied
service center.
Power Winches
If you wish to use a power winch on your vehicle,
only use it when your vehicle is stationary or
anchored.
Trailer Recommendations
You must subtract your hitch loads from the Cargo
Weight Rating (CWR) for your vehicle. CWR is
the maximum weight of the load your vehicle can
carry. It doesn’t include the weight of the people
inside. But you can gure about 150 lbs. (68 kg) for
each seat. The total cargo load must not be
more than your vehicle’s CWR.
Weigh your vehicle with the trailer attached, so
that you won’t go over the GVWR or GAWR. If you
are using a weight-distributing hitch, weigh the
vehicle without the spring bars in place.
You’ll get the best performance if you spread out
the weight of your load the right way, and if
you choose the correct hitch and trailer brakes.
For more information, seeTowing a Trailer
on page 422.
440

If No Steam Is Coming From Your
Engine
The ENGINE OVERHEATED STOP ENGINE or
the ENGINE OVERHEATED IDLE ENGINE
message, along with a low coolant condition, can
indicate a serious problem.
If you get an engine overheat warning, but see or
hear no steam, the problem may not be too
serious. Sometimes the engine can get a little too
hot when you:
Climb a long hill on a hot day.
Stop after high-speed driving.
Idle for long periods in traffic.
Tow a trailer. SeeTowing a Trailer on
page 422.If you get the ENGINE OVERHEATED STOP
ENGINE or the ENGINE OVERHEATED IDLE
ENGINE message with no sign of steam, try this
for a minute or so:
1. If you have an air conditioner and it is on, turn
it off.
2. Turn on your heater to full hot at the highest
fan speed and open the windows as
necessary.
3. In heavy traffic, let the engine idle in
NEUTRAL (N) while stopped. If it is safe to do
so, pull off the road, shift to PARK (P) or
NEUTRAL (N) and let the engine idle.
If you no longer have the overheat warning, you
can drive. Just to be safe, drive slower for
about 10 minutes. If the warning does not come
back on, you can drive normally.
If the warning continues, pull over, stop, and park
your vehicle immediately.
475

If there is still no sign of steam and your vehicle is
equipped with an engine-driven cooling fan,
push down the accelerator until the engine speed
is about twice as fast as normal idle speed for
at least ve minutes while you are parked.
If there is still no sign of steam and your vehicle is
equipped with an electric cooling fan, idle the
engine for ve minutes while you are parked.
If you still have the warning, turn off the engine
and get everyone out of the vehicle until it
cools down. Also, see “Overheated Engine
Protection Operating Mode” later in this section.
You may decide not to lift the hood but to get
service help right away.Overheated Engine Protection
Operating Mode
If an overheated engine condition exists and the
REDUCED ENGINE POWER message is
displayed, an overheat protection mode which
alternates ring groups of cylinders helps prevent
engine damage. In this mode, you will notice a
loss in power and engine performance. This
operating mode allows your vehicle to be driven to
a safe place in an emergency. Driving extended
miles (km) and/or towing a trailer in the overheat
protection mode should be avoided.
Notice:After driving in the overheated engine
protection operating mode, to avoid engine
damage, allow the engine to cool before
attempting any repair. The engine oil will be
severely degraded. Repair the cause of coolant
loss, change the oil and reset the oil life
system. SeeEngine Oil on page 459.
476

5. Then replace the pressure cap. Be sure the
pressure cap is hand-tight and fully seated.
6. Verify coolant level after engine is shut off
and the coolant is cold. If necessary, repeat
coolant ll procedure steps 1 through 6.
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.
483

(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, hood latch
assembly, secondary latch, pivots, spring anchor,
release pawl, rear compartment hinges, outer
liftgate handle pivot points, rear door detent link,
roller mechanism, liftgate handle pivot points, latch
bolt, fuel door hinge, cargo 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.(h)Change automatic transmission uid and lter
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 470 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.
585

Towing and Road Service Exclusions
Specically excluded from Roadside Assistance
coverage are towing or services for vehicles
operated on a non-public roadway or highway,
nes, impound towing caused by a violation
of local, Municipal, State, Provincial, or Federal
law, and mounting, dismounting or changing
of snow tires, chains, or other traction devices.
Courtesy Transportation
To enhance your ownership experience, we and
our participating dealers/retailers are proud to offer
Courtesy Transportation, a customer support
program for new vehicles.
For warranty repairs during the Bumper-to-Bumper
(U.S.) or Base Warranty Coverage period
(Canada), provided by the New Vehicle Limited
Warranty, interim transportation may be available
under the Courtesy Transportation program.
Several courtesy transportation options are
available to assist in reducing your inconvenience
when warranty repairs are required.Courtesy Transportation is not a part of the New
Vehicle Limited Warranty and is available only
at participating dealers/retailers. A separate
booklet entitled “Warranty and Owner Assistance
Information” furnished with each new vehicle
provides detailed warranty coverage information.
Scheduling Service Appointments
When your vehicle requires warranty service,
contact your dealer/retailer and request an
appointment. By scheduling a service appointment
and advising your service consultant of your
transportation needs, your dealer/retailer can help
minimize your inconvenience.
If your vehicle cannot be scheduled into the
service department immediately, keep driving it
until it can be scheduled for service, unless,
of course, the problem is safety-related. If it is,
please call your dealership/retailer, let them know
this, and ask for instructions.
If the dealer/retailer requests that you simply drop
the vehicle off for service, you are urged to do
so as early in the work day as possible to allow for
the same day repair.
607

If your vehicle cannot be driven, know where
the towing service will be taking it. Get a
card from the tow truck operator or write down
the driver’s name, the service’s name, and
the phone number.
Remove any valuables from your vehicle
before it is towed away. Make sure this
includes your insurance information and
registration if you keep these items in your
vehicle.
Gather the important information you will need
from the other driver. Things like name,
address, phone number, driver’s license
number, vehicle license plate, vehicle make,
model and model year, Vehicle Identication
Number (VIN), insurance company and
policy number, and a general description of
the damage to the other vehicle.
If possible, call your insurance company from
the scene of the accident. They will walk you
through the information they will need. If
they ask for a police report, phone or go to
the police department headquarters the
next day and you can get a copy of the report
for a nominal fee. In some states/provinces
with “no fault” insurance laws, a report may not
be necessary. This is especially true if there
are no injuries and both vehicles are driveable.
Choose a reputable collision repair facility
for your vehicle. Whether you select a
GM dealer/retailer or a private collision repair
facility to x the damage, make sure you
are comfortable with them. Remember, you
will have to feel comfortable with their work for
a long time.
Once you have an estimate, read it carefully
and make sure you understand what work
will be performed on your vehicle. If you have
a question, ask for an explanation. Reputable
shops welcome this opportunity.
613

Rear Seat Audio (RSA)............................... 348
Rear Seat Entertainment System................. 337
Rear Seat Passengers, Safety Belts.............. 54
Rear Side Window Antenna......................... 354
Rear Storage Area...................................... 192
Rear Windshield Washer/Wiper.................... 210
Rearview Mirror, Automatic Dimming with
Compass and Temperature Display.......... 166
Rearview Mirror, Automatic Dimming with
OnStar
®, Compass and Temperature
Display..................................................... 162
Reclining Seatbacks...................................... 15
Recommended Fluids and Lubricants.......... 590
Recovery Hooks.......................................... 406
Recreational Vehicle Towing........................ 418
Remote Keyless Entry (RKE) System.......... 114
Remote Keyless Entry (RKE) System,
Operation................................................. 115
Removing the Flat Tire and Installing the
Spare Tire................................................ 537
Removing the Spare Tire and Tools............ 533
Replacement Bulbs..................................... 504
Reporting Safety Defects
Canadian Government............................. 615
General Motors........................................ 615
United States Government....................... 615Restraint System Check
Checking the Restraint Systems............... 108
Replacing Restraint System Parts
After a Crash........................................ 109
Retained Accessory Power (RAP)................ 141
Right Front Passenger Position,
Safety Belts............................................... 52
Roadside
Assistance Program................................. 604
Rocking Your Vehicle to Get it Out.............. 405
Routing, Engine Drive Belt.......................... 593
Running Boards, Power............................... 131
Running the Engine While Parked............... 161
S
Safety Belt
Passenger Reminder Light....................... 245
Pretensioners............................................. 60
Reminder Light........................................ 244
Safety Belts
Care of.................................................... 556
Center Front Passenger Position................ 53
Driver Position........................................... 43
How to Wear Safety Belts Properly............ 43
630

Tires (cont.)
Spare Tire................................................ 552
Storing a Flat or Spare Tire and Tools......... 547
Tire Sidewall Labeling.............................. 508
Tire Terminology and Denitions............... 512
Uniform Tire Quality Grading.................... 527
Wheel Alignment and Tire Balance........... 528
Wheel Replacement................................. 528
When It Is Time for New Tires................. 523
Tow/Haul Mode........................................... 149
Tow/Haul Mode Light................................... 259
Towing
Recreational Vehicle................................. 418
Towing a Trailer....................................... 422
Your Vehicle............................................. 417
Traction
StabiliTrak
®System................................. 363
Trailer
Recommendations.................................... 440
Transmission
Fluid, Automatic....................................... 466
Transmission Operation, Automatic.............. 145
Trip Odometer............................................. 244
Turn and Lane-Change Signals................... 206
Turn Signal/Multifunction Lever.................... 205
U
Ultrasonic Rear Parking Assist (URPA)........ 222
Understanding Radio Reception................... 352
Uniform Tire Quality Grading....................... 527
Universal Home Remote System................. 178
Operation........................................178, 182
System Identication................................ 177
V
Vehicle
Control..................................................... 360
Damage Warnings....................................... 5
Loading.................................................... 407
Symbols...................................................... 5
Vehicle Customization, DIC......................... 280
Vehicle Data Collection and Event Data
Recorders................................................ 609
Vehicle Identication
Number (VIN).......................................... 562
Service Parts Identication Label.............. 563
Ventilation Adjustment.................................. 238
Visors.......................................................... 134
Voltmeter Gage........................................... 249
633