turn signal GMC ENVOY DENALI 2006 Owner's Guide

Trailer Wiring Harness
Your vehicle may be equipped with the seven-wire
trailer towing harness. This harness has a seven-pin
universal heavy-duty trailer connector (if equipped with
the trailering package) that is attached to a bracket
on the hitch platform. If your vehicle is not equipped with
the heavy-duty trailer connector, you may purchase
one from your dealer.The seven-wire harness contains the following trailer
circuits:
Yellow: Left Stop/Turn Signal
Dark Green: Right Stop/Turn Signal
Brown: Running Lamps
White: Ground
Light Green: Back-up Lamps
Red: Battery Feed
Dark Blue: Electric Brakes
If you need to tow a light-duty trailer with a standard
four-way round pin connector, an adapter connector is
available from your dealer.
Your vehicle may also be equipped with wiring for an
electric trailer brake controller. These wires are located
inside the vehicle on the driver’s side under the
instrument panel. These wires should be connected to
an electric trailer brake controller by your dealer or
a qualied service center.
4-68

Service............................................................5-3
Accessories and Modications..........................5-3
California Proposition 65 Warning.....................5-3
Doing Your Own Service Work.........................5-4
Adding Equipment to the Outside of
Your Vehicle..............................................5-5
Fuel................................................................5-5
Gasoline Octane............................................5-5
Gasoline Specications....................................5-5
California Fuel...............................................5-6
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-7
Filling the Tank..............................................5-8
Filling a Portable Fuel Container.....................5-10
Checking Things Under the Hood....................5-10
Hood Release..............................................5-11
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-16
Engine Oil Life System..................................5-20
Engine Air Cleaner/Filter................................5-21
Automatic Transmission Fluid.........................5-23
Engine Coolant.............................................5-25
Radiator Pressure Cap..................................5-28
Engine Overheating.......................................5-28
Cooling System............................................5-30
Engine Fan Noise.........................................5-35Power Steering Fluid.....................................5-36
Windshield Washer Fluid................................5-37
Brakes........................................................5-38
Battery........................................................5-41
Jump Starting...............................................5-42
Rear Axle.......................................................5-47
Four-Wheel Drive............................................5-48
Front Axle......................................................5-49
Bulb Replacement..........................................5-50
Halogen Bulbs..............................................5-50
Headlamps, Front Turn Signal, Sidemarker,
and Parking Lamps....................................5-50
Taillamps, Turn Signal, and Stoplamps............5-51
Back-Up Lamps............................................5-52
Replacement Bulbs.......................................5-52
Windshield Wiper Blade Replacement..............5-53
Tires..............................................................5-55
Tire Sidewall Labeling...................................5-56
Tire Terminology and Denitions.....................5-59
Ination - Tire Pressure.................................5-62
Tire Inspection and Rotation...........................5-63
When It Is Time for New Tires.......................5-65
Buying New Tires.........................................5-66
Different Size Tires and Wheels......................5-67
Uniform Tire Quality Grading..........................5-68
Section 5 Service and Appearance Care
5-1

Bulb Replacement
For the proper type of replacement bulbs, see
Replacement Bulbs on page 5-52.
For any bulb changing procedure not listed in this
section, contact your dealer.
Halogen Bulbs
{CAUTION:
Halogen bulbs have pressurized gas inside and
can burst if you drop or scratch the bulb. You or
others could be injured. Be sure to read and
follow the instructions on the bulb package.
Headlamps, Front Turn Signal,
Sidemarker, and Parking Lamps
To replace one of these bulbs, do the following:
1. Open the hood.Hood Release on page 5-11for
more information.
2. Lift the inner quick release clips.
3. Pull the headlamp assembly away from the vehicle.
4. Remove the cover from the headlamp bulb.
5. Disconnect the wiring harness.
5-50

6. Remove the bulb that needs to be replaced by
turning the socket counterclockwise.
7. Replace the old bulb with a new one using care not
to touch the glass with your ngers.
8. Reinstall by reversing Steps 1 through 6.
Taillamps, Turn Signal, and
Stoplamps
To replace a stoplamp/taillamp or turn signal bulb, do
the following:
1. Open the liftgate. SeeLiftgate/Liftglass on
page 2-13for more information.
2. Remove the
two screws from
the taillamp
assembly.
3. Pull the assembly away from the vehicle.4. Unclip the wiring harness (A) and remove the
three socket retaining screws (B).
5. Remove the socket by releasing the retaining tabs.
6. Holding the socket, pull the bulb to release it from
the socket.
7. Push the new bulb into the socket until it clicks.
8. Reinstall the socket and screws.
9. Reconnect the wiring harness.
10. Reinstall the taillamp assembly and tighten the
screws.
11. Close the liftgate.
5-51

Back-Up Lamps
The back-up lamps are located in the rear bumper. To
replace a bulb, do the following:
1. Reach behind the rear bumper and locate the
bulb socket.
2. Turn it counterclockwise to remove from the bulb
assembly.
3. Pull the bulb from the bulb socket.
4. Push in a new bulb into the bulb socket.
5. Reinstall the bulb socket by lining up the tabs in the
lamp assembly and turn it clockwise to secure it.
Replacement Bulbs
Exterior Lamp Bulb Number
Back-up Lamps 3157
Front Sidemarker Lamps 194
Front Turn Signal Lamps 3457
Halogen Headlamps
High-Beam 9005 HB3
Low-Beam 9006 HB4
Rear Turn Signal, Stoplamp and
Taillamp3057
For replacement bulbs not listed here, contact
your dealer.
5-52

Fuses Usage
29 Rainsense™ Wipers
30 Parking Lamps
31 Truck Body Controller Accessory
32 Truck Body Controller 5
33 Front Wipers
34 Vehicle Stop
35 Transmission Control Module
36Heat Ventilation Air
Conditioning B
37 Front Parking LampsFuses Usage
38 Left Turn Signal
39Heat Ventilation Air
Conditioning 1
40 Truck Body Controller 4
41 Radio
42 Trailer Park
43 Right Turn Signal
44 Heat Ventilation Air Conditioning
5-114

Fuses Usage
35 Transmission Control Module
36Heat Ventilation Air
Conditioning B
37 Front Parking Lamps
38 Left Turn Signal
39Heat Ventilation Air
Conditioning 1
40 Truck Body Controller 4
41 Radio
42 Trailer Park
43 Right Turn Signal
44 Heat Ventilation Air Conditioning
45 Rear Fog Lamps
46 Auxiliary Power 1Fuses Usage
47 Ignition 0
48 Four-Wheel Drive
49 Blank
50 Truck Body Controller Ignition
51 Brakes
52 Truck Body Controller Run
BLANK Blank
BLANK Blank
BLANK Blank
BLANK Blank
BLANK Blank
BLANK Blank
5-118

Audio System(s) (cont.)
Chime Level Adjustment.............................3-143
Fixed Mast Antenna...................................3-143
Navigation/Radio System, see
Navigation Manual..................................3-124
Radio with Cassette and CD.........................3-96
Radio with CD....................................3-68, 3-80
Radio with Six-Disc CD..............................3-110
Rear Seat Audio (RSA)...............................3-137
Setting the Time..........................................3-68
Theft-Deterrent Feature...............................3-139
Understanding Radio Reception...................3-140
XM™ Satellite Radio Antenna System...........3-143
Automatic Headlamp System............................3-16
Automatic Transmission
Fluid..........................................................5-23
Operation...................................................2-24
B
Battery..........................................................5-41
Run-Down Protection...................................3-19
Before Leaving on a Long Trip.........................4-37
Brake
Anti-Lock Brake System (ABS)........................ 4-7
Emergencies................................................ 4-9
Parking......................................................2-31
System Warning Light..................................3-39
Brake Pedal, Throttle.......................................2-22Brakes..........................................................5-38
Braking........................................................... 4-6
Braking in Emergencies..................................... 4-9
Break-In, New Vehicle.....................................2-19
Bulb Replacement...........................................5-50
Back-Up Lamps...........................................5-52
Halogen Bulbs............................................5-50
Headlamps, Front Turn Signal, Sidemarker,
and Parking Lamps..................................5-50
Replacement Bulbs......................................5-52
Taillamps, Turn Signal, and Stoplamps............5-51
Buying New Tires...........................................5-66
C
Calibration.............................2-39, 2-40, 2-43, 2-44
California Fuel.................................................. 5-6
California Proposition 65 Warning....................... 5-3
Canadian Owners................................................ ii
Capacities and Specications..........................5-119
Carbon Monoxide...................2-13, 2-34, 4-40, 4-56
Care of
Safety Belts................................................5-95
Your Cassette Tape Player..........................3-141
Your CD and DVD Player...........................3-142
Your CDs and DVDs ..................................3-142
Cargo Cover..................................................2-61
Cargo Tie Downs............................................2-61
Center Console Storage Area...........................2-56
2

Fuses
Engine Compartment Fuse Block.................5-103
Fuses and Circuit Breakers.........................5-103
Rear Underseat Fuse Block.........................5-111
Windshield Wiper.......................................5-102
G
Gage
Check Gages Warning Light..........................3-48
Engine Coolant Temperature.........................3-41
Fuel..........................................................3-49
Oil Pressure...............................................3-45
Speedometer..............................................3-33
Tachometer.................................................3-33
Voltmeter Gage...........................................3-38
Garage Door Opener.......................................2-51
Gasoline
Octane........................................................ 5-5
Specications............................................... 5-5
Gate Ajar Light...............................................3-48
Glove Box.....................................................2-56
GM Mobility Reimbursement Program.................. 7-5
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-8
Headlamps....................................................3-14
Automatic Headlamp System.........................3-16
Bulb Replacement.......................................5-50
Daytime Running Lamps...............................3-15
Electrical System.......................................5-102
Flash-to-Pass............................................... 3-8
Halogen Bulbs............................................5-50
Headlamps, Front Turn Signal, Sidemarker,
and Parking Lamps..................................5-50
High/Low Beam Changer................................ 3-8
On Reminder..............................................3-15
Washer......................................................3-11
Heated Seats................................................... 1-4
Heater...........................................................3-20
Heater...........................................................3-23
Highbeam On Light.........................................3-47
Highway Hypnosis...........................................4-38
Hill and Mountain Roads..................................4-38
Hood
Checking Things Under................................5-10
Release.....................................................5-11
Horn ............................................................... 3-6
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-19
6

Service (cont.)
Doing Your Own Work................................... 5-4
Engine Soon Light.......................................3-42
Four-Wheel-Drive Warning Light.....................3-48
Publications Ordering Information...................7-15
Servicing Your Airbag-Equipped Vehicle..............1-71
Setting the Time.............................................3-68
Sheet Metal Damage.......................................5-99
Shifting Into Park (P).......................................2-32
Shifting Out of Park (P)...................................2-33
Signals, Turn and Lane-Change.......................... 3-7
Snow Plow....................................................4-50
Spare Tire.....................................................5-92
Accessory Inator........................................5-71
Installing....................................................5-78
Removing...................................................5-75
Storing.......................................................5-88
Specications, Capacities...............................5-119
Speedometer..................................................3-33
StabiliTrak
®System.......................................... 4-9
StabiliTrak®Indicator Light................................3-41
StabiliTrak®Service Light.................................3-40
Starting Your Engine.......................................2-20
Steering........................................................4-14
Steering Wheel Controls, Audio.......................3-139
Steering Wheel, Tilt Wheel................................. 3-6
Storage Areas
Center Console Storage Area........................2-56
Convenience Net.........................................2-60
Glove Box..................................................2-56Storage Areas (cont.)
Luggage Carrier..........................................2-57
Overhead Console.......................................2-56
Rear Compartment Storage Panel/Cover.........2-58
Rear Floor Storage Lid.................................2-60
Stuck in Sand, Mud, Ice, or Snow.....................4-44
Sun Visors.....................................................2-16
Sunroof.........................................................2-62
Suspension....................................................4-55
TTachometer....................................................3-33
Taillamps
Turn Signal, and Stoplamps..........................5-51
Theft-Deterrent, Radio....................................3-139
Theft-Deterrent Systems...................................2-17
Content Theft-Deterrent................................2-17
Passlock
®...................................................2-18
Throttle, Adjustable..........................................2-22
Tilt Wheel........................................................ 3-6
Tires.............................................................5-55
Aluminum Wheels, Cleaning..........................5-98
Buying New Tires........................................5-66
Chains.......................................................5-71
Changing a Flat Tire....................................5-74
Cleaning....................................................5-98
Different Size..............................................5-67
If a Tire Goes Flat.......................................5-73
Ination - Tire Pressure................................5-62
12