2007 CHEVROLET TAHOE brake light

Trailer Wiring Harness
Your vehicle is equipped with the following wiring
harnesses for towing a trailer.
Basic Trailer Wiring
The trailer wiring harness, with a seven-pin
connector, is located at the rear of the vehicle and
is tied to the vehicle’s frame. The harness
connector can be plugged into a seven-pin
universal heavy-duty trailer connector available
through your dealer.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.
438

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

{CAUTION:
If you have too much brake uid, it can
spill on the engine. The uid will burn if
the engine is hot enough. You or others
could be burned, and your vehicle could
be damaged. Add brake uid only when
work is done on the brake hydraulic
system. See “Checking Brake Fluid” in
this section.
When the brake uid falls to a low level, the brake
warning light will come on. SeeBrake System
Warning Light on page 249.
Refer to the Maintenance Schedule to determine
when to check your brake uid. SeeScheduled
Maintenance on page 579.
Checking Brake Fluid
You can check the brake uid without taking off
the cap.
Look at the brake uid
reservoir. The uid level
should be above
MIN. If it is not, have
your brake system
checked to see if there
is a leak.
After work is done on the brake hydraulic system,
make sure the level is above the MIN but not
over the MAX mark.
487

Brake Wear
Your vehicle has four-wheel disc brakes.
Disc brake pads have built-in wear indicators that
make a high-pitched warning sound when the
brake pads are worn and new pads are needed.
The sound may come and go or be heard all
the time your vehicle is moving, except when you
are pushing on the brake pedal rmly.
{CAUTION:
The brake wear warning sound means that
soon the brakes will not work well. That
could lead to an accident. When you hear
the brake wear warning sound, have your
vehicle serviced.
Notice:Continuing to drive with worn-out
brake pads could result in costly brake repair.Some driving conditions or climates may cause a
brake squeal when the brakes are rst applied
or lightly applied. This does not mean something
is wrong with your brakes.
Properly torqued wheel nuts are necessary to help
prevent brake pulsation. When tires are rotated,
inspect brake pads for wear and evenly tighten
wheel nuts in the proper sequence to GM torque
specications.
Brake linings should always be replaced as
complete axle sets.
Brake Pedal Travel
See your dealer if the brake pedal does not return
to normal height, or if there is a rapid increase
in pedal travel. This could be a sign of brake
trouble.
Brake Adjustment
Every time you make a brake stop, your disc
brakes adjust for wear.
489

A
Accessories and Modications..................... 444
Adding a Snow Plow or Similar
Equipment................................................ 412
Adding Equipment to Your
Airbag-Equipped Vehicle........................... 107
Additives, Fuel............................................ 448
Add-On Electrical Equipment....................... 563
Adjustable Throttle and Brake Pedal............ 143
Air Cleaner/Filter, Engine............................. 464
Air Conditioning..................................227, 231
Airbag
Passenger Status Indicator....................... 246
Readiness Light....................................... 245
Airbag Sensing and Diagnostic
Module (SDM).......................................... 609
Airbag System............................................... 90
What Will You See After an
Airbag Inates?...................................... 99
When Should an Airbag Inate?................. 96
Where Are the Airbags?............................. 93
Airbag Systems
Adding Equipment to Your
Airbag-Equipped Vehicle....................... 107
How Does an Airbag Restrain?.................. 99Airbag Systems (cont.)
Passenger Sensing System...................... 101
Servicing Your Airbag-Equipped Vehicle..... 106
What Makes an Airbag Inate?.................. 98
Antenna, Rear Side Window........................ 354
Antenna, XM™ Satellite Radio Antenna
System.................................................... 354
Anti-Lock Brake System.............................. 361
Anti-Lock Brake, System Warning Light....... 251
Appearance Care
Aluminum or Chrome-Plated Wheels........ 559
Care of Safety Belts................................ 556
Chemical Paint Spotting........................... 561
Cleaning Exterior Lamps/Lenses.............. 557
Cleaning the Inside of Your Vehicle.......... 553
Fabric/Carpet........................................... 554
Finish Care.............................................. 557
Finish Damage......................................... 560
Instrument Panel, Vinyl, and Other
Plastic Surfaces.................................... 556
Leather.................................................... 555
Sheet Metal Damage............................... 560
Tires........................................................ 560
Underbody Maintenance........................... 560
Vehicle Care/Appearance Materials.......... 561
Washing Your Vehicle.............................. 557
619

Appearance Care (cont.)
Weatherstrips........................................... 556
Windshield, Backglass, and
Wiper Blades........................................ 558
Ashtray....................................................... 227
Audio System.............................................. 290
Audio Steering Wheel Controls................. 351
Care of Your CD and DVD Player............ 353
Care of Your CDs and DVDs................... 353
Navigation/Radio System,
see Navigation Manual......................... 337
Radio with CD......................................... 294
Rear Seat Audio (RSA)............................ 348
Setting the Time.....................291, 292, 293
Theft-Deterrent Feature............................ 350
Understanding Radio Reception............... 352
XM™ Satellite Radio Antenna System...... 354
Audio System(s)
Radio with CD and DVD.......................... 305
Rear Side Window Antenna..................... 354
Automatic Headlamp System....................... 217
Automatic Transmission
Fluid........................................................ 466
Operation................................................. 145
Autoride
®..................................................... 422
Auxiliary Roof Mounted Lamp Switch.......... 218
B
Battery........................................................ 490
Electric Power Management..................... 220
Run-Down Protection............................... 221
Before Leaving on a Long Trip.................... 396
Bench Seat, Split (60/40).............................. 20
Brake
Emergencies............................................ 363
Parking.................................................... 156
Brakes........................................................ 486
System Warning Light.............................. 249
Braking....................................................... 360
Braking in Emergencies............................... 363
Break-In, New Vehicle................................. 139
Bucket Seats, Rear....................................... 26
Bulb Replacement....................................... 502
Halogen Bulbs......................................... 502
Headlamp Aiming..................................... 499
License Plate Lamps................................ 504
Replacement Bulbs.................................. 504
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps..................................... 502
Buying New Tires........................................ 524
620

J
Jump Starting.............................................. 491
K
Keyless Entry System................................. 114
Keys........................................................... 113
L
Labeling, Tire Sidewall................................. 508
Lamps
Auxiliary Roof Mounted Lamp.................. 218
Dome....................................................... 219
Dome Lamp Override............................... 219
Exterior.................................................... 215
Reading................................................... 220
LATCH System
Child Restraints......................................... 74
Level Control............................................... 421
License Plate Lamps................................... 504
Liftgate, Power............................................ 127
Liftgate/Liftglass........................................... 125
Liftglass/Liftgate........................................... 125Light
Airbag Readiness..................................... 245
Anti-Lock Brake System Warning............. 251
Brake System Warning............................. 249
Charging System..................................... 248
Cruise Control.......................................... 258
Fog Lamp................................................ 258
Highbeam On.......................................... 259
Low Fuel Warning.................................... 260
Malfunction Indicator................................ 253
Oil Pressure............................................. 257
Passenger Airbag Status Indicator............ 246
Passenger Safety Belt Reminder.............. 245
Safety Belt Reminder............................... 244
Security................................................... 258
StabiliTrak
®Indicator................................ 252
Tire Pressure........................................... 253
Tow/Haul Mode........................................ 259
Lighting
Entry........................................................ 220
Exit.......................................................... 220
Loading Your Vehicle................................... 407
Locking Rear Axle....................................... 363
Lockout Protection....................................... 124
626