2002 GMC YUKON bulbs

2-39
Turn Signal/Multifunction Lever
The lever on the left side of the steering column
includes the following:

Turn and Lane Change Signals

Headlamp High/Low Beam Changer

Flash
-to-Pass Feature

Windshield Wipers

Windshield Washer

Cruise Control (If Equipped)
For information on the exterior lamps, see ªExterior
Lampsº earlier in this section.
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 finished, the lever will return automatically.
An arrow on the instrument
panel cluster will flash 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 flash. Hold it there until you
complete your lane change. The lever will return by
itself when you release it.
If you move the lever all the way up or down, and the
arrow flashes at twice the normal rate, a signal bulb may be
burned out and other drivers may not see your turn signal.
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 for burned
-out bulbs and a blown
fuse. See ªFuses and Circuit Breakersº in the Index.

4-66 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 flash
whenever you signal a turn or lane change. Properly
hooked up, the trailer lamps will also flash, telling other
drivers you're about to turn, change lanes or stop.
When towing a trailer, the arrows on your instrument
panel will flash 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.
Driving On Grades
Reduce speed and shift to a lower gear before you start
down a long or steep downgrade. If you don't shift
down, you might have to use your brakes so much that
they would get hot and no longer work well.
You can tow in DRIVE (D). You may want to shift the
transmission to THIRD (3) or, if necessary, a lower gear
selection if the transmission shifts too often (e.g., under
heavy loads and/or hilly conditions).

6-
6-1
Section 6 Service and Appearance Care
Here you will find information about the care of your vehicle. This section begins with service and fuel information,
and then it shows how to check important fluid and lubricant levels. There is also technical information about your
vehicle, and a part devoted to its appearance care.
6
-2 Service
6
-3 Fuel (Gasoline)
6
-5 Fuel E-85 (85% Ethanol)
6
-7 Fuels in Foreign Countries
6
-7 Filling Your Tank
6
-9 Filling a Portable Fuel Container
6
-10 Checking Things Under the Hood
6
-15 Engine Oil
6
-21 Engine Air Cleaner/Filter
6
-23 Passenger Compartment Air Filter
(If Equipped)
6
-24 Automatic Transmission Fluid
6
-27 Rear Axle
6
-28 Four-Wheel Drive
6
-31 Engine Coolant
6
-34 Coolant Surge Tank Pressure Cap6
-35 Power Steering Fluid
6
-36 Windshield Washer Fluid
6
-37 Brakes
6
-41 Battery
6
-42 Bulb Replacement
6
-48 Windshield Wiper Blade Replacement
6
-49 Tires
6
-59 Appearance Care
6
-60 Cleaning the Inside of Your Vehicle
6
-63 Cleaning the Outside of Your Vehicle
6
-67 GM Vehicle Care/Appearance Materials
6
-68 Vehicle Identification Number (VIN)
6
-69 Electrical System
6
-77 Replacement Bulbs
6
-78 Capacities and Specifications
6
-81 Normal Maintenance Replacement Parts

6-42 Vehicle Storage
If you're not going to drive your vehicle for 25 days
or more, remove the black, negative (
-) cable from
the battery. This will help keep your battery from
running down.
CAUTION:
Batteries have acid that can burn you and gas
that can explode. You can be badly hurt if you
aren't careful. See ªJump Startingº in the Index
for tips on working around a battery without
getting hurt.
Contact your dealer to learn how to prepare your vehicle
for longer storage periods.
Also, for your audio system, see ªTheft
-Deterrent
Featureº in the Index.
Bulb Replacement
For any bulb changing procedure not listed in this
section, contact your dealer.
See ªReplacement Bulbsº in the Index for the proper
types of bulbs to use.
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.

6-77
Fuse Usage
LT TURN Left Turn Signals
FR PRK Front Parking Lamps,
Sidemarker Lamps
W/W PMP Windshield Washer Pump
HORN Horn (Relay)
IGN C Ignition Switch, Fuel Pump,
PRND321 Display, Crank
RDO AMP Radio Amplifier
HAZ LP Exterior Lamps, Hazard Lamps
EXP LPS Not Used
HORN Horn
CTSY LP Interior Lamps
RR WPR Rear Wipers
TBC Body Control Module, Remote
Keyless Entry, HeadlampsReplacement Bulbs
Low-Beam Headlamps2 9006
High
-Beam Headlamps2 9005
Daytime Running
Lamps (DRL)2 4157K
Front Roof Marker Lamp 5 194
Front Parking and
Turn Lamp2 3157A
Rear Marker Lamp,
Taillamp and Stop Lamp2 3157
Rear Turn Lamp 2 3157
Back
-up Lamp2 3157
For any bulb not listed here contact your dealer.