2007 GMC SIERRA CLASSIC low beam

You can be temporarily blinded by approaching
headlamps. It can take a second or two, or
even several seconds, for your eyes to re-adjust
to the dark. When you are faced with severe glare,
as from a driver who does not lower the high
beams, or a vehicle with misaimed headlamps,
slow down a little. Avoid staring directly into
the approaching headlamps.
Keep the windshield and all the glass on your
vehicle clean — inside and out. Glare at night is
made much worse by dirt on the glass. Even
the inside of the glass can build up a lm caused
by dust. Dirty glass makes lights dazzle and
ash more than clean glass would, making the
pupils of your eyes contract repeatedly.
Remember that the headlamps light up far less of a
roadway when you are in a turn or curve. Keep your
eyes moving; that way, it is easier to pick out dimly
lighted objects. Just as the headlamps should be
checked regularly for proper aim, so should your
eyes be examined regularly. Some drivers suffer
from night blindness — the inability to see in dim
light — and are not even aware of it.Driving in Rain and on Wet Roads
Rain and wet roads can mean driving trouble.
On a wet road, you cannot stop, accelerate,
or turn as well because your tire-to-road
traction is not as good as on dry roads.
392

Driving Through Flowing Water
{CAUTION:
Flowing or rushing water creates strong
forces. If you try to drive through owing
water, as you might at a low water
crossing, your vehicle can be carried
away. As little as six inches of owing
water can carry away a smaller vehicle.
If this happens, you and other vehicle
occupants could drown. Do not ignore
police warning signs, and otherwise be
very cautious about trying to drive
through owing water.
Some Other Rainy Weather Tips
Turn on your low-beam headlamps — not just
your parking lamps — to help make you more
visible to others.
Besides slowing down, allow some extra
following distance. And be especially
careful when you pass another vehicle.
Allow yourself more clear room ahead, and
be prepared to have your view restricted
by road spray.
Have good tires with proper tread depth.
SeeTires on page 543.
395

Headlamps
To replace a headlamp bulb, do the following:
1. Open the hood. SeeHood Release on
page 479for more information.
2. Remove the two pins on the top of the
headlamp assembly. To remove the pins, turn
the outer pin outward and pull it straight up.
To remove the inner pin, turn it in and
pull it straight up.A. Low-Beam Headlamp
B. High-Beam Headlamp
3. Pull the headlamp assembly out.
4. Unplug the electrical connector.
5. Turn the old bulb counterclockwise and
remove it from the headlamp assembly.
6. Install the new bulb into the assembly and
turn it clockwise until it is tight.
7. Plug in the electrical connector.
8. Reinstall the headlamp assembly.
9. Reinstall and tighten the two pins.
533

License Plate Lamp
To replace one of these bulbs, do the following:
1. Reach under the rear bumper for the bulb
socket.
2. Turn the bulb socket counterclockwise and
pull the bulb socket out of the connector.
3. Pull the old bulb from the bulb socket, keeping
the bulb straight as you pull it out.
4. Install the new bulb.
5. Reverse Steps 1 through 3 to reinstall the
bulb socket.
Replacement Bulbs
Exterior Lamp Bulb Number
Back-up Lamp 3157
Back-up Lamp* 1156
Cargo Lamp and Center
High-Mounted Stoplamp (CHMSL)912
Daytime Running Lamp (DRL) 4114K
Fender Marker, Front Roof Marker,
and Sidemarker Lamp (If Equipped)194
Front Parking and Turn Lamp 3457A
Headlamps
High-Beam 9005
Low-Beam 9006
License Plate Lamp 168
Rear Marker Lamp, Taillamp and
Stoplamp*3157
Rear Turn Signal Lamp 3157
Rear Turn Signal Lamp* 1156
Stoplamp and Taillamp* 1157
* Chassis Cab Models
For replacement bulbs not listed here, contact
your dealer.
541

Fuses Usage
DRL Daytime Running Lamps
RVC Regulated Voltage Control
IPC/DICInstrument Panel
Cluster/Driver Information
Center
HVAC/ECAS Climate Control Controller
CIG LTR Cigarette Lighter
HI HDLP-RT High Beam Headlamp-Right
HDLP-LOW Headlamp Low Beam Relay
A/C COMPAir Conditioning Compressor
Relay
A/C COMP Air Conditioning Compressor
TCMB Transmission Control Module
RR WPR Not Used
RADIO Audio System
SEO B1Mid Bussed Electrical Center,
Rear Heated Seats,
Universal Home Remote
SystemFuses Usage
LO HDLP-LT Headlamp Low Beam-Left
BTSIBrake Transmission Shift
Interlock System
CRNK Starting System
LO HDLP-RT Headlamp Low Beam-Right
FOG LP Fog Lamps Relay
FOG LP Fog Lamps
HORN Horn Relay
W/S WASHWindshield Washer
Pump Relay
W/S WASH Windshield Washer Pump
INFOOnStar
®/Rear Seat
Entertainment
RADIO AMP Radio Amplier
RH HID Not Used
HORN Horn
EAP Not Used
TREC Not Used
607

Fuses
Center Instrument Panel Fuse Block........ 602
Fuses and Circuit Breakers...................... 600
Instrument Panel Fuse Block................... 600
Underhood Fuse Block............................. 603
Windshield Wiper..................................... 599
G
Gage
Engine Coolant Temperature.................... 256
Fuel......................................................... 264
Oil Pressure............................................. 262
Speedometer........................................... 246
Tachometer.............................................. 246
Transmission Temperature........................ 257
Voltmeter Gage........................................ 253
Garage Door Opener..........................191, 192
Gasoline
Octane..................................................... 470
Specications........................................... 471
Glove Box................................................... 202
GM Mobility Reimbursement Program.......... 643
H
Hazard Warning Flashers............................ 212
Head Restraints............................................ 18
Headlamps.........................................221, 533
Automatic Headlamp System.................... 223
Bulb Replacement.................................... 532
Daytime Running Lamps.......................... 222
Flash-to-Pass........................................... 216
Front Turn Signal, Sidemarker and
Daytime Running Lamps....................... 534
Halogen Bulbs......................................... 532
High/Low Beam Changer......................... 215
On Reminder........................................... 222
Pickup Box Identication and Fender
Marker Lamps...................................... 538
Roof Marker Lamps................................. 535
Heated Seats................................................ 11
Heater................................................230, 231
Heater......................................................... 235
Highbeam On Light..................................... 263
Highway Hypnosis....................................... 399
Hill and Mountain Roads............................. 400
Hood
Checking Things Under............................ 478
Release................................................... 479
665

Horn............................................................ 213
How to Use This Manual................................ 4
How to Wear Safety Belts Properly............... 27
Hydraulic Clutch.......................................... 501
I
Ignition Positions......................................... 135
Infants and Young Children, Restraints.......... 47
Ination - Tire Pressure............................... 551
Instrument Panel
Overview.................................................. 210
Instrument Panel (I/P)
Brightness................................................ 226
Cluster..................................................... 245
J
Jump Starting.............................................. 521
K
Keyless Entry System................................. 116
Keys........................................................... 115
L
Labeling, Tire Sidewall................................. 544
Lamps
Auxiliary Roof Mounted Lamp.................. 226
Cargo...................................................... 228
Dome....................................................... 226
Dome Lamp Override............................... 227
Fog .......................................................... 225
Front Reading.......................................... 227
LATCH System
Child Restraints......................................... 58
Latches, Seatback......................................... 18
License Plate Lamps................................... 541
Light
Airbag Off................................................ 248
Airbag Readiness..................................... 247
Anti-Lock Brake System Warning............. 255
Battery Warning....................................... 253
Brake System Warning............................. 254
Cruise Control.......................................... 263
Four-Wheel-Drive..................................... 263
Highbeam On.......................................... 263
Low Fuel Warning.................................... 265
Malfunction Indicator................................ 258
666