2010 GMC YUKON turn signal bulb

Turn Signal/Multifunction Lever
The lever on the left side of the steering column
includes the following:
G:Turn and Lane Change Signals
5 3:Headlamp High/Low-Beam Changer
N:Windshield Wipers
L:Windshield Washer
5:Rear Wiper Delay
Z:Rear Wiper
=:Rear Wiper Wash
Flash-to-Pass.
Information for these features is on the pages following.
Turn and Lane-Change Signals
An arrow on the
instrument panel cluster
flashes 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 for less than one second until
the arrow starts to flash to signal a lane change. This
causes the turn signals to automatically flash three
times. It will flash six times if tow-haul mode is active.
Holding the turn signal lever for more than one second
will cause the turn signals to flash until you release the
lever.
The lever returns to its starting position whenever it is
released.
If after signaling a turn or a lane change the arrows
flash 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. See Fuses and Circuit Breakers
on
page 6‑118.
4-4

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.
If the trailer turn signal bulbs burn out, the arrows on the
instrument panel will still flash for turns. 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 gear beforestarting
down a long or steep downgrade. If the transmission
is not shifted down, the brakes might 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.
The tow/haul mode may be used if the transmission
shifts too often. See Tow/Haul Mode on page 3‑39.
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
automatic transmission in P (Park) for a few minutes
before turning the engine off. If the overheat warning
comes on, see Engine Overheating on page 6‑36.
5-65

Section 6 Service and Appearance Care
Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Accessories and Modifications . . . . . . . . . . . . . . . . . . 6-4
California Proposition 65 Warning . . . . . . . . . . . . . . . 6-5
California Perchlorate Materials Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Doing Your Own Service Work . . . . . . . . . . . . . . . . . . 6-5
Adding Equipment to the Outside of the Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Gasoline Octane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Gasoline Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
California Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
Additives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
Fuel E85 (85% Ethanol) . . . . . . . . . . . . . . . . . . . . . . . . . 6-9
Fuels in Foreign Countries . . . . . . . . . . . . . . . . . . . . . 6-10
Filling the Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11
Filling a Portable Fuel Container . . . . . . . . . . . . . . . 6-13
Checking Things Under the Hood . . . . . . . . . . . . . . .6-14
Hood Release . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14
Engine Compartment Overview . . . . . . . . . . . . . . . . 6-16
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18
Engine Oil Life System . . . . . . . . . . . . . . . . . . . . . . . . 6-20
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . . . . . . . . . 6-22
Automatic Transmission Fluid (4-Speed Transmission) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-24 Automatic Transmission Fluid (6-Speed
Transmission) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-27
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-30
Engine Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-32
Engine Overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-36
Overheated Engine Protection Operating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-39
Engine Fan Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-39
Power Steering Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 6-40
Windshield Washer Fluid . . . . . . . . . . . . . . . . . . . . . . 6-41
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-42
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-45
Jump Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-46
Rear Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-51
Four-Wheel Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-52
Front Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-53
Headlamp Aiming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-55
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-58
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-58
Taillamps, Turn Signal, Stoplamps and Back-up Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-58
License Plate Lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-60
Replacement Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-60
Windshield Wiper Blade Replacement . . . . . . . . . . .6-61
6-1

Bulb Replacement
For the proper type of replacement bulbs, see
Replacement Bulbs on page 6‑60.
For any bulb changing procedure not listed in this
section, contact your dealer.
Halogen Bulbs
{WARNING:
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.
Taillamps, Turn Signal, Stoplamps
and Back-up Lamps
If your vehicle is a Two-mode Hybrid, see the
Two-mode Hybrid supplement for the bulb changing
procedure.
A. Taillamp/TurnSignal Lamp
B. Back-up Lamp
C. Stoplamp/Taillamp
6-58

License Plate Lamp
1. Remove the two screws holding each of thelicense plate lamps to the molding that is part of
the liftgate.
2. Twist and pull the license plate lamp forward through the molding opening. 3. Turn the bulb socket counterclockwise and pull the
bulb straight out of the socket.
4. Install the new bulb.
5. Reverse Steps 1 through 3 to reinstall the license plate lamp.
Replacement Bulbs
If your vehicle is a Two-mode Hybrid, see the
Two-mode Hybrid manual for more information.
Exterior Lamp Bulb Number
Back-up Lamp 7441
License Plate Lamp 168
Rear Turn Signal Lamp, Taillamp, and
Stoplamp 3057KX
For replacement bulbs not listed here, contact your
dealer.
6-60

Audio System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-80Audio Steering Wheel Controls . . . . . . . . . . . . . . . . . .4-136
Navigation/Radio System, see Navigation
Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-114
Radio Reception . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-139
Rear Seat (RSA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-134
Setting the Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-81
Theft-Deterrent Feature . . . . . . . . . . . . . . . . . . . . . . . . . .4-136
XM™ Satellite Radio Antenna System . . . . . . . . . . .4-140
Audio System(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-82
Automatic Headlamp System . . . . . . . . . . . . . . . . . . . . . . 4-12
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-24, 6-27
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33
Autoride
®. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-48
Auxiliary
Roof Mounted Lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
Axle, Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-51
B
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-45 Electric Power Management . . . . . . . . . . . . . . . . . . . . . . 4-15
Run-Down Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16 Belt Routing, Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-14
Bench Seat, Split (60/40) . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
Bluetooth
®. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-114
Brake Emergencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Pedal and Adjustable Throttle . . . . . . . . . . . . . . . . . . . . 3-31
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-42
Antilock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Parking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-48
System Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-36
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3
Braking in Emergencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-5
Break-In, New Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27
Bucket Seats, Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-60 Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-58
Headlamp Aiming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-55
Headlamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-58
License Plate Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-60
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-58
Buying New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-80
i - 2