2009 GMC ENVOY 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
23Headlamp High/Low-Beam Changer
Flash-to-Pass Feature
NWindshield Wipers
JWindshield Washer
ICruise Control
Information for these features is on the pages following.
Turn and Lane-Change Signals
An arrow on the instrument
panel cluster ashes in the
direction of the turn or
lane change.
Move the lever all the way up or down to signal a turn.
Raise or lower the lever until the arrow starts to ash
to signal a lane change. Hold it there until the lane
change is complete.
The lever returns to its starting position when it is
released.
If after signaling a turn or lane change the arrows ash
rapidly or do not come on, a signal bulb could be
burned out.
Have the bulbs replaced. If the bulb is not burned out,
check the fuse. SeeFuses and Circuit Breakers on
page 5-113.
3-7

If the vehicle has a trailer towing option with added
wiring for the trailer lamps, a turn signal asher is used.
With this asher installed, the signal indicator ashes
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
A chime sounds if the turn signal has been on 3/4 of a
mile (1.2 km). Move the turn signal lever to off.
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 high-beam headlamps be used to
signal to a driver in front of you that you want to pass.
It works even if the headlamps are in the automatic
position.
To use it, pull the turn signal lever toward you, then
release it.
If the headlamps are in the automatic position or on low
beam, the high-beam headlamps turn on. They will stay
on as long as the lever is held toward you. The high-beam
indicator on the instrument panel cluster comes on.
Release the lever to return to normal operation.
Windshield Wipers
8(Mist):Turn the band to mist, for a single wiping
cycle. Hold it there until the wipers start, then release it.
The wipers will stop after one wipe. Hold the band on
mist longer if more wipe cycles are needed.
9(Off):Turns the wipers off.
N(Windshield Wipers):Turn the band to control the
windshield wipers.
6: Turn the band to set the wiper speed for a long or
short delay between wipes. The closer to the top of the
lever, the shorter the delay time.
3-8

Backing Up
Hold the bottom of the steering wheel with one hand.
Then, to move the trailer to the left, 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. The vehicle could be damaged. Avoid
making very sharp turns while trailering.
When turning with a trailer, make wider turns than
normal. Do this so the trailer will not 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 the instrument panel ash whenever
signaling a turn or lane change. Properly hooked up, the
trailer lamps also ash, telling other drivers the vehicle
is turning, changing lanes or stopping.When towing a trailer, the arrows on the instrument
panel ash for turns even if the bulbs on the trailer are
burned out. For this reason you may think other
drivers are seeing the signal when they are not. It is
important to check occasionally to be sure the
trailer bulbs are still working.
Driving On Grades
Reduce speed and shift to a lower gearbeforestarting
down a long or steep downgrade. If the transmission is
not shifted down, the brakes might have to be used so
much that they would get hot and no longer work well.
Vehicles can tow in D (Drive). Shift the transmission to
a lower gear if the transmission shifts too often under
heavy loads and/or hilly conditions.
When towing at high altitude on steep uphill grades,
consider the following: Engine coolant will boil at a lower
temperature than at normal altitudes. If the engine is
turned off immediately after towing at high altitude
on steep uphill grades, the vehicle may show signs
similar to engine overheating. To avoid this, let
the engine run while parked, preferably on level ground,
with the transmission in P (Park) for a few minutes
before turning the engine off. If the overheat warning
comes on, seeEngine Overheating on page 5-30.
4-54

Service............................................................5-3
Accessories and Modications..........................5-3
California Proposition 65 Warning.....................5-4
California Perchlorate Materials Requirements.....5-4
Doing Your Own Service Work.........................5-4
Adding Equipment to the Outside of the
Vehicle......................................................5-5
Fuel................................................................5-5
Gasoline Octane............................................5-5
Gasoline Specications....................................5-6
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................................5-20
Automatic Transmission Fluid.........................5-21
Cooling System............................................5-24
Engine Coolant.............................................5-25
Engine Overheating.......................................5-30
Engine Fan Noise.........................................5-32Power Steering Fluid.....................................5-33
Windshield 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
Headlamp Aiming
...........................................5-45
Bulb Replacement..........................................5-46
Halogen Bulbs..............................................5-46
Headlamps..................................................5-46
Front Turn Signal, Sidemarker and
Parking Lamps..........................................5-47
Taillamps, Turn Signal, and Stoplamps............5-47
Back-Up Lamps............................................5-48
License Plate Lamp......................................5-49
Replacement Bulbs.......................................5-49
Windshield Wiper Blade Replacement..............5-50
Tires..............................................................5-53
Tire Sidewall Labeling...................................5-54
Tire Terminology and Denitions.....................5-57
Ination - Tire Pressure.................................5-60
High-Speed Operation...................................5-62
Tire Pressure Monitor System.........................5-63
Section 5 Service and Appearance Care
5-1

Front Turn Signal, Sidemarker and
Parking Lamps
To replace one of these bulbs:
1. Follow Steps 1 through 3 underHeadlamps on
page 5-46to access the front turn signal,
sidemarker or parking lamp.
2. Turn the bulb socket counterclockwise and remove
it from the lamp assembly.
3. Holding the socket, pull the old bulb to release it
from the socket.
4. Push the new bulb into the socket until it clicks.
5. Insert the bulb socket into the lamp assembly and
turn it clockwise to secure.
6. Reinstall the headlamp assembly by lining up the
headlamp assembly with the slots in the headlamp
retaining clips.
7. Press down on the headlamp retaining clips to
secure the headlamp assembly.
Taillamps, Turn Signal, and
Stoplamps
To replace a stoplamp/taillamp or turn signal bulb:
1. Open the liftgate. SeeLiftgate/Liftglass on
page 2-12.
2. Remove the
two screws from
the taillamp
assembly.
3. Pull the assembly away from the vehicle.
5-47

License Plate Lamp
1. Remove the two screws holding the license plate
lamp lens.
2. Pull the lens away from the lamp assembly.
3. Pull the old bulb straight out from the bulb socket.
4. Push the new bulb into the socket until it clicks.
5. Replace the lamp assembly lens and tighten
the screws.
Replacement Bulbs
Exterior Lamp Bulb Number
Back-up Lamps/Rear Turn Signal
Lamp, Stoplamp, and Taillamp3157
Front Sidemarker Lamps 194
Front Turn Signal Lamps 3457
License Plate Lamp W5W
High-Beam Headlamps 9005 HB3
Low-Beam Headlamps 9006 HB4
For replacement bulbs not listed here, contact your
dealer/retailer.
5-49

Audio System (cont.)
Setting the Clock.........................................3-63
Theft-Deterrent Feature...............................3-110
XM™ Satellite Radio Antenna System...........3-112
Audio System(s).............................................3-64
Automatic Headlamp System............................3-14
Automatic Transmission
Fluid..........................................................5-21
Operation...................................................2-25
B
Battery..........................................................5-38
Electric Power Management..........................3-17
Run-Down Protection...................................3-18
Bluetooth
®.....................................................3-86
Brake
Emergencies................................................ 4-6
Brake Fluid....................................................5-35
Brakes..........................................................5-35
System Warning Light..................................3-35
Braking........................................................... 4-4
Braking in Emergencies..................................... 4-6
Break-In, New Vehicle.....................................2-20
Bulb Replacement...........................................5-46
Back-Up Lamps...........................................5-48
Front Turn Signal, Sidemarker and
Parking Lamps.........................................5-47
Halogen Bulbs............................................5-46Bulb Replacement (cont.)
Headlamp Aiming........................................5-45
Headlamps.................................................5-46
License Plate Lamps....................................5-49
Replacement Bulbs......................................5-49
Taillamps, Turn Signal, and Stoplamps............5-47
Buying New Tires...........................................5-70
C
Calibration.....................................................2-40
California Fuel.................................................. 5-6
California Perchlorate Materials Requirements....... 5-4
California Proposition 65 Warning....................... 5-4
Canadian Owners................................................ ii
Capacities and Specications..........................5-120
Carbon Monoxide...........................2-12, 2-37, 4-28
Care of
Safety Belts..............................................5-106
Cargo Cover..................................................2-54
Cargo Tie Downs............................................2-55
CD, MP3 .......................................................3-80
Center Console Storage Area...........................2-52
Chains, Tire...................................................5-76
Charging System Light....................................3-33
Check
Engine Lamp..............................................3-38
Gages Warning Light...................................3-45
Check Gas Cap Light......................................3-47
2

Fuel (cont.)
Gage .........................................................3-46
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-6
Low Warning Light.......................................3-47
Fuses
Engine Compartment Fuse Block.................5-113
Fuses and Circuit Breakers.........................5-113
Rear Underseat Fuse Block.........................5-116
Windshield Wiper.......................................5-112
G
Gage
Check Gages Warning Light..........................3-45
Engine Coolant Temperature.........................3-37
Fuel..........................................................3-46
Oil Pressure...............................................3-42
Speedometer..............................................3-29
Tachometer.................................................3-29
Voltmeter Gage...........................................3-34
Garage Door Opener.......................................2-46
Gasoline
Octane........................................................ 5-5
Specications............................................... 5-6
Gate Ajar Light...............................................3-45
Glove Box.....................................................2-51
GM Mobility Reimbursement Program.................. 7-7
H
Hazard Warning Flashers................................... 3-6
Head Restraints..............................................1-10
Headlamp
Aiming .......................................................5-45
Headlamps............................................3-13, 5-46
Bulb Replacement.......................................5-46
Daytime Running Lamp................................3-14
Electrical System.......................................5-112
Flash-to-Pass............................................... 3-8
Front Turn Signal, Sidemarker and
Parking Lamps.........................................5-47
Halogen Bulbs............................................5-46
High/Low Beam Changer................................ 3-8
On Reminder..............................................3-14
Washer......................................................3-10
Heated Seats................................................... 1-4
Heater...........................................................3-19
Engine Coolant...........................................2-24
Heater...........................................................3-22
Highbeam On Light.........................................3-44
High-Speed Operation, Tires.............................5-62
Highway Hypnosis...........................................4-26
Hill and Mountain Roads..................................4-27
Hood
Checking Things Under................................5-10
Release.....................................................5-11
Horn ............................................................... 3-6
How to Wear Safety Belts Properly...................1-18
6