turn signal bulb HUMMER H2 2007 Owners Manual

An arrow on the
instrument panel
cluster will ash in the
direction of the turn
or lane change.
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 will not
see your turn signal.
If a bulb is burned out, replace it to help avoid an
accident. If the arrows do not go on at all when you
signal a turn, check for burned-out bulbs and a
blown fuse. SeeInstrument Panel Fuse Block on
page 504andUnderhood Fuse Block on page 507.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 and the message TURN SIGNAL
ON will also appear in the DIC. SeeDIC
Warnings and Messages on page 226. To turn the
chime and message off, move the turn signal
lever to the off position.
Headlamp High/Low-Beam Changer
53(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.
179

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. 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.
383

Service........................................................ 392
Accessories and Modications................... 392
California Proposition 65 Warning.............. 393
Doing Your Own Service Work.................. 393
Adding Equipment to the Outside of
Your Vehicle.......................................... 394
Fuel............................................................. 394
Gasoline Octane........................................ 394
Gasoline Specications.............................. 394
California Fuel........................................... 395
Additives................................................... 395
Fuels in Foreign Countries........................ 396
Filling the Tank......................................... 397
Filling a Portable Fuel Container............... 399
Checking Things Under the Hood.............. 400
Hood Release........................................... 400
Engine Compartment Overview.................. 402
Engine Oil................................................. 404
Engine Oil Life System.............................. 407
Engine Air Cleaner/Filter............................ 409
Automatic Transmission Fluid.................... 412
Engine Coolant.......................................... 415Coolant Surge Tank Pressure Cap............ 418
Engine Overheating................................... 418
Overheated Engine Protection
Operating Mode..................................... 420
Cooling System......................................... 420
Power Steering Fluid ................................. 425
Windshield Washer Fluid........................... 426
Brakes...................................................... 427
Battery...................................................... 431
Jump Starting............................................ 432
Rear Axle.................................................... 437
Four-Wheel Drive........................................ 438
Front Axle................................................... 440
Bulb Replacement....................................... 441
Halogen Bulbs........................................... 441
Headlamps................................................ 441
Front Turn Signal and Parking Lamps.......... 442
Daytime Running Lamps (DRL)................. 443
Roof Marker Lamps................................... 443
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps...................................... 444
Replacement Bulbs................................... 446
Section 5 Service and Appearance Care
389

5. Unplug the electrical
connector.
6. Push the new bulb socket into the headlamp
assembly making sure to align the splines
on the bulb socket with the splines in the
headlamp housing. Use care not to touch the
bulb with your ngers or hands.
7. Turn the bulb socket retainer clockwise to lock
it into place.
8. Plug in the electrical connector.Front Turn Signal and Parking Lamps
To replace a front turn signal or parking lamp bulb,
do the following:
1. Open the hood. SeeHood Release on
page 400for more information.
2. Locate the bulb you need to change.
3. Turn the bulb socket
counterclockwise
and remove it
from the lamp
housing.
4. Pull the bulb from the bulb socket.
5. Install the new bulb into the bulb socket.
6. Reinstall the bulb socket into the lamp housing
and turn it clockwise until it locks.
442

Center Roof Marker Lamps
To replace one of these bulbs, do the following:
1. Push in on the notch with a at tool and pull
the lamp out.
2. Turn the bulb socket counterclockwise and
remove it from the lamp housing.
3. Remove the bulb from the bulb socket.
4. Install a new bulb into the bulb socket.
5. Place the hook end of the lamp in place on
one side and push the other end of the lamp
down until it locks in place.
Taillamps, Turn Signal, Stoplamps
and Back-up Lamps
A. Stoplamp/Taillamp
B. Turn Signal Lamp
C. Back-Up Lamp
To replace one of these bulbs, do the following:
1. Open the liftgate or tailgate. SeeLiftgate
(SUV) on page 104orTailgate/Spare Tire
Carrier on page 108for more information.
444

Your vehicle may have a taillamp in the bumper.
To replace it, do the following:
1. Locate the affected
taillamp which is
behind and
under the bumper.
2. Turn the bulb socket counterclockwise and
remove it from the lamp housing.
3. Remove the bulb from the bulb socket.
4. Install the new bulb into the bulb socket.
5. Reinstall the bulb socket into the lamp housing
and turn it clockwise to lock it.Replacement Bulbs
Exterior Lamp Bulb Number
Back-up Lamp 3156K
Daytime Running Lamp (DRL) 4114K LCP
Front Turn Signal and
Parking Lamp4157K or 3157KX
Low-Beam and High-Beam
Headlamps9007
Rear Taillamp and Stoplamp 3057K
Rear Taillamp in Bumper 3057K
Rear Turn Signal Lamp 3156K
Roof Marker Lamp Center 168
Roof Marker Lamp Corner 194
For replacement bulbs not listed here, contact
your dealer.
446

Bulb Replacement....................................... 441
Daytime Running Lamps.......................... 443
Front Turn Signal and Parking Lamps......... 442
Halogen Bulbs......................................... 441
Headlamps............................................... 441
Replacement Bulbs.................................. 446
Roof Marker Lamps................................. 443
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps..................................... 444
Buying New Tires........................................ 460
C
Calibration................................................... 139
California Fuel............................................. 395
California Proposition 65 Warning................ 393
Canadian Owners........................................... 3
Capacities and Specications...................... 512
Carbon Monoxide.............104, 105, 108, 137,
353, 374
Care of
Safety Belts............................................. 495
Your Cassette Tape Player....................... 297
Your CD and DVD Player........................ 300
Your CDs and DVDs................................ 299Cargo Area, All-Weather .............................. 165
Cargo Tie Downs........................................ 165
Center Console Storage Area...................... 160
Center Overhead Console........................... 160
Chains, Tire................................................. 465
Charging System Light................................ 209
Check
Engine Light............................................ 215
Checking Things Under the Hood ................ 400
Chemical Paint Spotting .............................. 500
Child Restraints
Child Restraint Systems............................. 53
Infants and Young Children........................ 49
Lower Anchors and Tethers for
Children.................................................. 59
Older Children........................................... 46
Securing a Child Restraint in a
Rear Seat Position................................. 69
Securing a Child Restraint in the
Right Front Seat Position........................ 71
Where to Put the Restraint........................ 57
Chime Level Adjustment .............................. 300
Cigarette Lighter.......................................... 197
557

Fuel (cont.)
Filling Your Tank...................................... 397
Fuels in Foreign Countries....................... 396
Gage....................................................... 221
Gasoline Octane...................................... 394
Gasoline Specications............................ 394
Low Warning Light................................... 221
Fuses
Center Instrument Panel Fuse Block........ 506
Fuses and Circuit Breakers...................... 504
Instrument Panel Fuse Block................... 504
Underhood Fuse Block............................. 507
Windshield Wiper..................................... 503
G
Gage
Engine Coolant Temperature.................... 213
Fuel......................................................... 221
Oil Pressure............................................. 218
Speedometer........................................... 206
Tachometer.............................................. 206
Transmission Temperature........................ 213
Voltmeter Gage........................................ 210Garage Door Opener..........................148, 149
Gasoline
Octane..................................................... 394
Specications........................................... 394
Glove Box................................................... 160
GM Mobility Reimbursement Program.......... 541
H
Hazard Warning Flashers............................ 176
Head Restraints............................................ 14
Headlamps.................................................. 441
Automatic Headlamp System.................... 189
Bulb Replacement.................................... 441
Daytime Running Lamps.................188, 443
Flash-to-Pass........................................... 180
Front Turn Signal and Parking Lamps......... 442
Halogen Bulbs......................................... 441
High/Low Beam Changer......................... 179
On Reminder........................................... 188
Roof Marker Lamps................................. 443
Heated Seats................................................ 10
Heater......................................................... 197
Highbeam On Light..................................... 220
561