2005 GMC ENVOY XL turn signal bulb

Turn Signal/Multifunction Lever
The lever on the left side of the steering column
includes the following:
GTurn and Lane Change Signals
2Headlamp High/Low-Beam Changer
Flash-to-Pass Feature
NWindshield Wipers
JWindshield Washer
ICruise Control (If Equipped)
Turn and Lane-Change Signals
The turn signal has two upward (for right) and
two downward (for left) positions. These positions
allow you to signal a turn or a lane change.
To signal a turn, move the lever all the way up or
down. When the turn is nished, the lever will return
automatically.
An arrow on the instrument
panel cluster will ash
in the direction of the turn
or lane change.
To signal a lane change, just raise or lower the lever
until the arrow starts to ash. Hold it there until you
complete your lane change. The lever will return by
itself when you release it. The bottom of the outside
rearview mirrors may also be equipped with lane change
indicators.
As you signal a turn or a lane change, if the arrows
ash more quickly than normal, a signal bulb may
be burned out and other drivers won’t see your turn
signal.
3-7

If a bulb is burned out, replace it to help avoid an
accident. If the arrows don’t go on at all when you signal
a turn, check the fuse. SeeFuses and Circuit Breakers
on page 5-91and check for burned-out bulbs.
If you have a trailer towing option with added wiring
for the trailer lamps, a different turn signal asher
is used. With this asher installed, the signal indicator
will ash even if a turn signal bulb is burned out. Check
the front and rear turn signal lamps regularly to make
sure they are working.
Turn Signal On Chime
If your turn signal is left on for more than 3/4 of a mile
(1.2 km), a chime will sound at each ash of the
turn signal. To turn off the chime, move the turn signal
lever to the off position.
Headlamp High/Low-Beam Changer
To change the headlamps from low to high beam,
push the lever toward the instrument panel. To return
to low-beam headlamps, pull the multifunction lever
toward you. Then release it.When the high beams are
on, this indicator light on
the instrument panel
cluster will also be on.
Flash-to-Pass
This feature lets you use your high-beam headlamps to
signal a driver in front of you that you want to pass.
It works even if your headlamps are in the automatic
position.
To use it, pull the turn signal lever toward you, then
release it.
If your headlamps are in the automatic position or on
low beam, your high-beam headlamps will turn on.
They’ll stay on as long as you hold the lever toward you.
The high-beam indicator on the instrument panel
cluster will come on. Release the lever to return to
normal operation.
3-8

Following Distance
Stay at least twice as far behind the vehicle ahead as
you would when driving your vehicle without a trailer.
This can help you avoid situations that require
heavy braking and sudden turns.
Passing
You’ll need more passing distance up ahead when
you’re towing a trailer. And, because you’re a good deal
longer, you’ll need to go much farther beyond the
passed vehicle before you can return to your lane.
Backing Up
Hold the bottom of the steering wheel with one hand.
Then, to move the trailer to the left, just move that hand
to the left. To move the trailer to the right, move your
hand to the right. Always back up slowly and, if possible,
have someone guide you.
Making Turns
Notice:Making very sharp turns while trailering
could cause the trailer to come in contact with the
vehicle. Your vehicle could be damaged. Avoid
making very sharp turns while trailering.
When you’re turning with a trailer, make wider turns than
normal. Do this so your trailer won’t strike soft shoulders,
curbs, road signs, trees or other objects. Avoid jerky or
sudden maneuvers. Signal well in advance.
Turn Signals When Towing a Trailer
The arrows on your instrument panel will ash whenever
you signal a turn or lane change. Properly hooked up,
the trailer lamps will also ash, telling other drivers
you’re about to turn, change lanes or stop.
When towing a trailer, the arrows on your instrument
panel will ash for turns even if the bulbs on the trailer
are burned out. Thus, you may think drivers behind
you are seeing your signal when they are not. It’s
important to check occasionally to be sure the trailer
bulbs are still working.
4-62

Service............................................................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...................................................5-15
Engine Oil Life System..................................5-18
Engine Air Cleaner/Filter................................5-19
Automatic Transmission Fluid.........................5-21
Engine Coolant.............................................5-23
Radiator Pressure Cap..................................5-26
Engine Overheating.......................................5-26
Cooling System............................................5-28
Engine Fan Noise.........................................5-33
Power Steering Fluid.....................................5-34Windshield Washer Fluid................................5-34
Brakes........................................................5-35
Battery........................................................5-38
Jump Starting...............................................5-39
Rear Axle.......................................................5-43
Four-Wheel Drive............................................5-44
Front Axle......................................................5-44
Bulb Replacement..........................................5-45
Halogen Bulbs..............................................5-45
Headlamps, Front Turn Signal, Sidemarker,
and Parking Lamps....................................5-46
Taillamps, Turn Signal, and Stoplamps............5-46
Back-Up Lamps............................................5-47
Replacement Bulbs.......................................5-47
Windshield Wiper Blade Replacement..............5-48
Tires..............................................................5-50
Tire Sidewall Labelling...................................5-51
Tire Terminology and Denitions.....................5-54
Ination - Tire Pressure.................................5-56
Tire Inspection and Rotation...........................5-57
When It Is Time for New Tires.......................5-59
Buying New Tires.........................................5-59
Uniform Tire Quality Grading..........................5-60
Wheel Alignment and Tire Balance..................5-61
Section 5 Service and Appearance Care
5-1

Headlamps, Front Turn Signal,
Sidemarker, and Parking Lamps
To replace a headlamp, front turn signal/parking or
sidemarker bulb, 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.
6. Remove the bulb that needs to be replaced by
turning the socket counterclockwise.
7. Replace the old bulb with a new one.
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.
5-46

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.
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.
5-47

Audio System(s) (cont.)
Fixed Mast Antenna...................................3-129
Navigation/Radio System, see
Navigation Manual..................................3-113
Radio with Cassette and CD.........................3-87
Radio with CD....................................3-63, 3-73
Radio with Six-Disc CD..............................3-100
Rear Seat Audio (RSA)...............................3-124
Setting the Time..........................................3-62
Theft-Deterrent Feature...............................3-125
Understanding Radio Reception...................3-127
XM™ Satellite Radio Antenna System...........3-129
Automatic Headlamp System............................3-16
Automatic Transmission
Fluid..........................................................5-21
Operation...................................................2-24
B
Battery..........................................................5-38
Run-Down Protection...................................3-19
Before Leaving on a Long Trip.........................4-34
Brake
Anti-Lock Brake System (ABS)........................ 4-6
Emergencies................................................ 4-8
Parking......................................................2-31
System Warning Light..................................3-38
Brake Pedal, Throttle.......................................2-22Brakes..........................................................5-35
Braking........................................................... 4-5
Braking in Emergencies..................................... 4-8
Break-In, New Vehicle.....................................2-19
Bulb Replacement...........................................5-45
Back-Up Lamps...........................................5-47
Halogen Bulbs............................................5-45
Headlamps, Front Turn Signal, Sidemarker,
and Parking Lamps..................................5-46
Replacement Bulbs......................................5-47
Taillamps, Turn Signal, and Stoplamps............5-46
Buying New Tires...........................................5-59
C
California Fuel.................................................. 5-6
Canadian Owners................................................ ii
Capacities and Specications..........................5-103
Carbon Monoxide...................2-13, 2-35, 4-38, 4-55
Care of
Safety Belts................................................5-85
Your Cassette Tape Player..........................3-127
Your CD and DVD Player...........................3-128
Your CDs and DVDs..................................3-128
Cargo Cover..................................................2-58
Center Console Storage Area...........................2-54
Chains, Tire...................................................5-63
Charging System Light....................................3-37
2

G
Gage
Check Gages Warning Light..........................3-47
Engine Coolant Temperature.........................3-40
Fuel..........................................................3-48
Oil Pressure...............................................3-44
Speedometer..............................................3-33
Tachometer.................................................3-33
Voltmeter Gage...........................................3-38
Garage Door Opener.......................................2-49
Gasoline
Octane........................................................ 5-5
Specications............................................... 5-5
Gate Ajar Light...............................................3-47
Glove Box.....................................................2-53
GM Mobility Reimbursement Program.................. 7-5
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-9
Headlamps....................................................3-14
Automatic Headlamp System.........................3-16
Bulb Replacement.......................................5-45
Daytime Running Lamps...............................3-15
Electrical System.........................................5-91
Flash-to-Pass............................................... 3-8Headlamps (cont.)
Halogen Bulbs............................................5-45
Headlamps, Front Turn Signal, Sidemarker,
and Parking Lamps..................................5-46
High/Low Beam Changer................................ 3-8
On Reminder..............................................3-15
Washer......................................................3-11
Heated Seats................................................... 1-6
Heater...........................................................3-20
Heater...........................................................3-23
Highbeam On Light.........................................3-46
Highway Hypnosis...........................................4-35
Hill and Mountain Roads..................................4-36
HomeLink
®Wireless Control System.................2-49
HomeLink®Wireless Control System
Operation...................................................2-50
Hood
Checking Things Under................................5-10
Release.....................................................5-11
Horn............................................................... 3-6
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-18
I
Ignition Positions.............................................2-20
Infants and Young Children, Restraints...............1-34
Ination -- Tire Pressure..................................5-56
6