2007 CADILLAC ESCALADE EXT service

Trailer Wiring Harness
Heavy-Duty Trailer Wiring Package
Your vehicle is equipped with the seven-wire
trailer towing harness. This harness with a
seven-pin universal heavy-duty trailer connector is
attached to the rear bumper beam. It is located
next to the integrated trailer hitch.
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 w/ Black Stripe: 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 technician.
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.
391

Electric Brake Control Wiring
Provisions
These wiring provisions are included with your
vehicle as part of the heavy-duty trailer wiring
package. These provisions are for an electric
brake controller. The red/black stripe power feed
will not be connected to the battery until the
ring terminal is unstowed and connected to the
underhood electrical center. 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: Auxiliary
Red/Black: Battery
Light Blue/White: Brake Switch
White: Ground
It should be installed by your dealer or a qualied
service center.
Trailer Recommendations
You must subtract your hitch loads from the Cargo
Weight Rating (CWR). 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 vehicles CWR.
Weigh your vehicle with your 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 380.
392

Service........................................................ 396
Accessories and Modications................... 397
California Proposition 65 Warning.............. 397
Doing Your Own Service Work.................. 398
Adding Equipment to the Outside of
Your Vehicle.......................................... 399
Fuel............................................................. 399
Gasoline Octane........................................ 399
Gasoline Specications.............................. 399
California Fuel........................................... 400
Additives................................................... 400
Fuels in Foreign Countries........................ 401
Filling the Tank......................................... 402
Filling a Portable Fuel Container............... 404
Checking Things Under the Hood.............. 404
Hood Release........................................... 405
Engine Compartment Overview.................. 406
Engine Oil................................................. 407
Engine Oil Life System.............................. 410
Engine Air Cleaner/Filter............................ 412
Automatic Transmission Fluid.................... 415
Engine Coolant.......................................... 419Coolant Surge Tank Pressure Cap............ 422
Engine Overheating................................... 422
Overheated Engine Protection
Operating Mode..................................... 425
Cooling System......................................... 426
Engine Fan Noise..................................... 431
Power Steering Fluid ................................. 431
Windshield Washer Fluid........................... 432
Brakes...................................................... 433
Battery...................................................... 437
Jump Starting............................................ 438
All-Wheel Drive........................................... 443
Rear Axle.................................................... 444
Front Axle................................................... 446
Headlamp Aiming........................................ 447
Bulb Replacement....................................... 450
High Intensity Discharge (HID) Lighting..... 450
Taillamps, Turn Signal, Sidemarker,
Stoplamps and Back-up Lamps.............. 450
License Plate Lamp................................... 452
Replacement Bulbs................................... 452
Section 5 Service and Appearance Care
393

Windshield Wiper Blade Replacement....... 453
Tires............................................................ 454
Tire Sidewall Labeling............................... 455
Tire Terminology and Denitions............... 457
Ination - Tire Pressure............................. 460
High-Speed Operation............................... 462
Tire Pressure Monitor System................... 462
Tire Inspection and Rotation...................... 467
When It Is Time for New Tires.................. 469
Buying New Tires...................................... 470
Different Size Tires and Wheels................ 472
Uniform Tire Quality Grading..................... 473
Wheel Alignment and Tire Balance............ 474
Wheel Replacement.................................. 474
Tire Chains............................................... 476
If a Tire Goes Flat.................................... 476
Changing a Flat Tire................................. 477
Removing the Spare Tire and Tools.......... 478
Removing the Flat Tire and Installing
the Spare Tire....................................... 482
Secondary Latch System........................... 489
Storing a Flat or Spare Tire and Tools...... 492
Spare Tire................................................. 495Appearance Care........................................ 496
Cleaning the Inside of Your Vehicle.......... 496
Fabric/Carpet............................................. 498
Leather...................................................... 499
Instrument Panel, Vinyl, and Other
Plastic Surfaces..................................... 499
Wood Panels............................................. 500
Speaker Covers........................................ 500
Care of Safety Belts.................................. 500
Weatherstrips............................................ 501
Washing Your Vehicle............................... 501
Cleaning Exterior Lamps/Lenses................ 502
Finish Care............................................... 502
Windshield and Wiper Blades.................... 503
Aluminum or Chrome-Plated Wheels......... 504
Tires......................................................... 505
Sheet Metal Damage................................. 505
Finish Damage.......................................... 505
Underbody Maintenance............................ 506
Chemical Paint Spotting............................ 506
Vehicle Care/Appearance Materials............ 507
Section 5 Service and Appearance Care
394

Vehicle Identication.................................. 508
Vehicle Identication Number (VIN)........... 508
Service Parts Identication Label............... 508
Electrical System........................................ 509
Add-On Electrical Equipment..................... 509
Windshield Wiper Fuses............................ 509
Power Windows and Other Power
Options.................................................. 509Fuses and Circuit Breakers....................... 509
Instrument Panel Fuse Block..................... 510
Center Instrument Panel Fuse Block......... 512
Underhood Fuse Block.............................. 513
Capacities and Specications.................... 518
Section 5 Service and Appearance Care
395

Service
Your dealer knows your vehicle best and wants
you to be happy with it. We hope you will go
to your dealer for all your service needs. You will
get genuine GM parts and GM-trained and
supported service people.We hope you will want to keep your GM vehicle
all GM. Genuine GM parts have one of these
marks:
396

Accessories and Modications
When you add non-GM accessories to your vehicle
they can affect your vehicle’s performance and
safety, including such things as, airbags, braking,
stability, ride and handling, emissions systems,
aerodynamics, durability, and electronic systems
like anti-lock brakes, traction control and
stability control. Some of these accessories may
even cause malfunction or damage not covered by
warranty.
GM Accessories are designed to complement and
function with other systems on your vehicle.
Your GM dealer can accessorize your vehicle
using genuine GM Accessories. When you go to
your GM dealer and ask for GM Accessories,
you will know that GM-trained and supported
service technicians will perform the work using
genuine GM Accessories.
California Proposition 65 Warning
Most motor vehicles, including this one, contain
and/or emit chemicals known to the State of
California to cause cancer and birth defects or other
reproductive harm. Engine exhaust, many parts and
systems (including some inside the vehicle), many
uids, and some component wear by-products
contain and/or emit these chemicals.
397

Doing Your Own Service Work
{CAUTION:
You can be injured and your vehicle could
be damaged if you try to do service work
on a vehicle without knowing enough
about it.
Be sure you have sufficient knowledge,
experience, the proper replacement
parts, and tools before you attempt any
vehicle maintenance task.
Be sure to use the proper nuts, bolts,
and other fasteners. English and metric
fasteners can be easily confused. If you
use the wrong fasteners, parts can later
break or fall off. You could be hurt.If you want to do some of your own service work,
you will want to use the proper service manual.
It tells you much more about how to service your
vehicle than this manual can. To order the
proper service manual, seeService Publications
Ordering Information on page 562.
Your vehicle has an airbag system. Before
attempting to do your own service work, see
Servicing Your Airbag-Equipped Vehicle on
page 84.
You should keep a record with all parts receipts
and list the mileage and the date of any service
work you perform. SeeMaintenance Record
on page 537.
398