2010 GMC YUKON XL low beam

What to Use
Refer to the Maintenance Schedule to determine what
kind of lubricant to use. SeeRecommended Fluids and
Lubricants on page 7‑11.
Headlamp Aiming
The vehicle has a visual optical headlamp aiming
system. The aim of the headlamps have been preset at
the factory and should need no further adjustment.
However, if the vehicle is damaged in a crash, the aim
of the headlamps may be affected and adjustment may
be necessary.
If oncoming vehicles flash their high beams at you, this
may mean the vertical aim of your headlamps needs to
be adjusted.
It is recommended that the vehicle is taken to your
dealer for service if the headlamps need to be adjusted.
It is possible however, to re-aim the headlamps as
described. The vehicle should:
.Be placed so the headlamps are 25 ft. (7.6 m) from
a light colored wall.
.Have all four tires on a level surface which is level
all the way to the wall.
.Be placed so it is perpendicular to the wall.
.Not have any snow, ice, or mud on it.
.Be fully assembled and all other work stopped
while headlamp aiming is being performed.
.Normally loaded with a full tank of fuel and one
person or 160 lbs (75 kg) sitting on the driver seat.
.Have the tires properly inflated.
.Have the spare tire is in its proper location in the
vehicle.
Headlamp aiming is done with the vehicle's low-beam
headlamps. The high-beam headlamps will be correctly
aimed if the low-beam headlamps are aimed properly.
6-55

To adjust the vertical aim:1. Open the hood. See Hood Release on page 6‑14
2. Locate the aim dot on the lens of the low‐beam
headlamp.
3. Record the distance from the ground to the aim dot on the low‐beam headlamp.
4. At a wall, measure from the ground upward (A) tothe recorded distance from Step 3 and mark it.
5. Draw or tape a horizontal line (B) on the wall the width of the vehicle at the height of the mark in
Step 4.
Notice: Do not cover a headlamp to improve beam
cut-off when aiming. Covering a headlamp may
cause excessive heat build-up which may cause
damage to the headlamp.
6. Turn on the low-beam headlamps and place a piece of cardboard or equivalent in front of the
headlamp not being adjusted. This allows only the
beam of light from the headlamp being adjusted to
be seen on the flat surface.
6-56

7. Locate the vertical headlamp aiming screws, whichare under the hood near each headlamp assembly.
The adjustment screw can be turned with an
E8 Torx
®socket.
8. Turn the vertical aiming screw until the headlamp beam is aimed to the horizontal tape line. Turn it
clockwise or counterclockwise to raise or lower the
angle of the beam.
9. Make sure that the light from the headlamp is
positioned at the bottom edge of the horizontal
tape line. The lamp on the left (A) shows the
correct headlamp aim. The lamp on the right (B)
shows the incorrect headlamp aim.
10. Repeat Steps 7 through 9 for the opposite headlamp.
6-57

FusesUsage
5Engine Control Module,
Throttle Control
6 Trailer Brake Controller
7 Front Washer
8 Oxygen Sensors
9 Antilock Brakes System 2
10 Trailer Back-up Lamps 11 Driver Side Low-Beam Headlamp
12 Engine Control Module (Battery)
13 Fuel Injectors, Ignition Coils
(Right Side)
14 Transmission Control Module
(Battery)
15 Vehicle Back-up Lamps
16 Passenger Side Low-Beam Headlamp
17 Air Conditioning Compressor
18 Oxygen Sensors
Fuses Usage
19 Transmission Controls (Ignition)
20 Fuel Pump
21 Fuel System Control Module
22 Headlamp Washer
23 Rear Windshield Washer
24Fuel Injectors, Ignition Coils
(Left Side)
25 Trailer Park Lamps
26 Driver Side Park Lamps
27 Passenger Side Park Lamps
28 Fog Lamps
29 Horn
30 Passenger Side High-Beam
Headlamp
31 Daytime Running Lamps (DRL)
32 Driver Side High-Beam Headlamp
33 Daytime Running Lamps 2
6-123

J-Case FusesUsage
57 Cooling Fan 1
58 Automatic Level Control Compressor
59 Heavy Duty Antilock Braking System
60 Cooling Fan 2
61 Antilock Brake System 1
62 Starter
63 Stud 2 (Trailer Brakes)
64 Left Bussed Electrical Center 1
65 Electric Running Boards
66 Heated Windshield Washer System
67 Transfer Case
68Stud 1 (Trailer Connector Battery
Power)
69 Mid-Bussed Electrical Center 1
70 Climate Control Blower
71 Power Liftgate Module
72 Left Bussed Electrical Center 2
Relays Usage
FAN HI Cooling Fan High Speed
FAN LO Cooling Fan Low Speed
FAN CNTRL Cooling Fan Control
HDLP LO/HID Low-Beam Headlamp
FOG LAMP Front Fog Lamps
A/C CMPRSR Air Conditioning Compressor
STRTR Starter
PWR/TRN Powertrain
FUEL PMP Fuel Pump
PRK LAMP Parking Lamps
REAR DEFOG Rear Defogger
RUN/CRANK Switched Power
6-125

FusesCenter Instrument Panel Fuse Block . . . . . . . . . . . . .6-121
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . . . . . 6-118
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . 6-119
Underhood Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . .6-122
Windshield Wiper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-118
G
Garage Door Opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-69
Gasoline
Octane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Gauges
Engine Coolant Temperature . . . . . . . . . . . . . . . . . . . . . 4-38
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-46
Oil Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-43
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
Voltmeter Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-35
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-75
GM Mobility Reimbursement Program . . . . . . . . . . . . . . .8-7
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-58
Hazard Warning Flashers . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
Head Restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
Headlamps Aiming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-55
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-58
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . . 4-11
Exterior Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
High/Low Beam Changer . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
On Reminder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Heated Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8, 2-9
Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18 Engine Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-31
Highbeam On Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-45
Highway Hypnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-26
Hill and Mountain Roads . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-26
Hood Checking Things Under . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14
Release . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
How to Wear Safety Belts Properly . . . . . . . . . . . . . . . . 2-37
i - 7

LightsAirbag Readiness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-32
Antilock Brake System (ABS) Warning . . . . . . . . . . . . 4-37
Brake System Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-36
Charging System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-34
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-45
Exterior Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-45
High/Low Beam Changer . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Highbeam On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-45
Low Fuel Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-47
Oil Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-44
On Reminder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . 4-33
Safety Belt Reminders . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-44
StabiliTrak
®Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-38
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-39
Tow/Haul Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-45
Loading Your Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-31
Locking Rear Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-8
Locks
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Lockout Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12 Locks (cont.)
Power Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
Programmable Automatic Door Locks . . . . . . . . . . . . 3-11
Rear Door Security Locks . . . . . . . . . . . . . . . . . . . . . . . . 3-12
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
Low Fuel Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-47
Lower Anchors and Tethers for Children . . . . . . . . . . . 2-67
Lumbar Manual Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Power Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
M
Maintenance Schedule
Maintenance Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-15
Maintenance Replacement Parts . . . . . . . . . . . . . . . . . 7-13
Owner Checks and Services . . . . . . . . . . . . . . . . . . . . . . . 7-9
Recommended Fluids and Lubricants . . . . . . . . . . . . 7-11
Scheduled Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Malfunction Indicator Lamp . . . . . . . . . . . . . . . . . . . . . . . . 4-39
Manual Lumbar Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
Manual Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
Memory Seat, Mirrors, and Pedals . . . . . . . . . . . . . . . . . 2-10
Message DIC Warnings and Messages . . . . . . . . . . . . . . . . . . . . . 4-61
i - 9