2007 GMC YUKON XL DENALI service indicator

5. Inspect or replace the engine air cleaner/lter.
6. Reinstall the cover and tighten the screws.
7. Reset the air lter restriction indicator, if
the vehicle has one, by pressing the top button
on the indicator.
{CAUTION:
Operating the engine with the air
cleaner/lter off can cause you or others
to be burned. The air cleaner not only
cleans the air; it helps to stop ames if
the engine backres. If it is not there and
the engine backres, you could be
burned. Do not drive with it off, and be
careful working on the engine with the air
cleaner/lter off.
Automatic Transmission Fluid
When to Check and Change Automatic
Transmission Fluid
It is usually not necessary to check the
transmission uid level. A transmission uid leak
is the only reason for uid loss. If you suspect
a small leak, then use the following checking
procedures to check the uid level. However, if
there is a large leak, then it may be necessary to
have the vehicle towed to a dealership service
department and have it repaired before driving the
vehicle further.
Notice:Use of the incorrect automatic
transmission uid may damage your vehicle,
and the damages may not be covered by
your warranty. Always use the automatic
transmission uid listed inRecommended
Fluids and Lubricants on page 561.
Change the uid and lter at the intervals listed in
the Maintenance Schedule. SeeScheduled
Maintenance on page 551. Be sure to use the
transmission uid listed inRecommended Fluids
and Lubricants on page 561.
440

Notice:
Using the wrong uid can badly damage
brake system parts. For example, just a
few drops of mineral-based oil, such
as engine oil, in your brake system can
damage brake system parts so badly that
they will have to be replaced. Do not
let someone put in the wrong kind of uid.
If you spill brake uid on your vehicle’s
painted surfaces, the paint nish can
be damaged. Be careful not to spill brake
uid on your vehicle. If you do, wash it
off immediately. SeeWashing Your Vehicle
on page 530.
Brake Wear
Your vehicle has four-wheel disc brakes.
Disc brake pads have built-in wear indicators that
make a high-pitched warning sound when the
brake pads are worn and new pads are needed.
The sound may come and go or be heard all
the time your vehicle is moving, except when you
are pushing on the brake pedal rmly.
{CAUTION:
The brake wear warning sound means that
soon your brakes will not work well. That
could lead to an accident. When you hear
the brake wear warning sound, have your
vehicle serviced.
Notice:Continuing to drive with worn-out
brake pads could result in costly brake repair.
Some driving conditions or climates may cause
a brake squeal when the brakes are rst applied or
lightly applied. This does not mean something is
wrong with your brakes.
461

Scheduled Maintenance
Service MaintenanceIMaintenanceII
Change engine oil and lter. SeeEngine Oil on page 432. Reset oil life system.
SeeEngine Oil Life System on page 435.An Emission Control Service.••
Lubricate chassis components.See footnote #.••
Visually check for any leaks or damage.See footnote (j).••
Inspect engine air cleaner lter or change indicator (if equipped). If necessary,
replace lter. SeeEngine Air Cleaner/Filter on page 437.See footnote (k).•
Rotate tires and check ination pressures and wear. SeeTire Inspection and
Rotation on page 496and “Tire Wear Inspection” inAt Least Once a Month
on page 558.••
Inspect brake system.See footnote (a).••
Check engine coolant and windshield washer uid levels and add uid as
needed.••
Perform any needed additional services. SeeAdditional Required Services
on page 554.••
Inspect suspension and steering components.See footnote (b).•
Inspect engine cooling system.See footnote (c).•
Inspect wiper blades.See footnote (d).•
Inspect restraint system components.See footnote (e).•
Lubricate body components.See footnote (f).•
Check transmission uid level and add uid as needed.•
Check transfer case uid level and add uid as needed.•
553

Additional Required Services
The following services should be performed at the rst maintenance service (IorII) after the indicated
miles (kilometers) shown for each item.
Additional Required Services
Service and Miles (Kilometers)25,000
(40 000)50,000
(80 000)75,000
(120 000)100,000
(160 000)125,000
(200 000)150,000
(240 000)
Inspect fuel system for damage
or leaks.• •••••
Inspect exhaust system for loose
or damaged components.• •••••
Vehicles without a lter restriction
indicator: Replace engine air cleaner
lter. SeeEngine Air Cleaner/Filter
on page 437.•••
Change automatic transmission
uid and lter (severe service).
See footnote (h).•••
Change automatic transmission uid
and lter (normal service).•
Change transfer case uid.
See footnote (m).•••
Inspect evaporative control system.
An Emission Control Service.
See footnotes † and (g).•••
554

Light (cont.)
StabiliTrak®Indicator................................ 235
Tire Pressure........................................... 236
Tow/Haul Mode........................................ 242
Lighting
Entry........................................................ 207
Exit.......................................................... 207
Loading Your Vehicle................................... 392
Locking Differential...................................... 349
Lockout Protection....................................... 125
Locks
Delayed Locking...................................... 123
Door........................................................ 122
Lockout Protection................................... 125
Power Door............................................. 123
Programmable Automatic Door Locks....... 124
Rear Door Security Locks........................ 124
Loss of Control........................................... 357
Low Fuel Warning Light............................... 244
Luggage Carrier.......................................... 179
Lumbar
Power Controls.......................................... 10M
Maintenance Schedule
Additional Required Services.................... 554
At Each Fuel Fill...................................... 558
At Least Once a Month............................ 558
At Least Once a Year.............................. 559
Introduction.............................................. 548
Maintenance Footnotes............................ 555
Maintenance Record................................ 565
Maintenance Requirements...................... 548
Normal Maintenance Replacement Parts ... 563
Owner Checks and Services.................... 557
Recommended Fluids and Lubricants....... 561
Scheduled Maintenance........................... 551
Using....................................................... 549
Your Vehicle and the Environment............ 549
Malfunction Indicator Light........................... 237
Memory Seat, Mirrors, and Pedals................ 12
Message
DIC Warnings and Messages................... 252
Mirrors
Automatic Dimming Rearview with
OnStar
®, Compass and Temperature
Display................................................. 158
Outside Power Foldaway Mirrors.............. 161
MyGMLink.com............................................ 573
601

N
Navigation/Radio System, see Navigation
Manual..................................................... 321
New Vehicle Break-In.................................. 139
Normal Maintenance Replacement Parts..... 563
O
Odometer.................................................... 227
Odometer, Trip............................................ 227
Off-Road Driving.......................................... 359
Off-Road Recovery...................................... 355
Oil
Engine..................................................... 432
Pressure Gage......................................... 240
Pressure Light.......................................... 241
Oil, Engine Oil Life System......................... 435
Older Children, Restraints............................. 61
Online Owner Center................................... 573
OnStar
®System, see OnStar®Manual........ 164
Other Warning Devices................................ 192
Outlet Adjustment........................................ 222
Outlet(s), Accessory Power.......................... 213Outside
Power Foldaway Mirrors........................... 161
Overheated Engine Protection
Operating Mode....................................... 450
Owner Checks and Services....................... 557
Owners, Canadian.......................................... 3
P
Paint, Damage............................................ 534
Park Aid...................................................... 208
Park (P)
Shifting Into............................................. 153
Shifting Out of......................................... 154
Parking
Assist....................................................... 208
Brake....................................................... 152
Over Things That Burn............................ 155
Passenger Airbag Status Indicator............... 230
Passenger Sensing System......................... 101
Passing....................................................... 356
PASS-Key
®III+........................................... 136
PASS-Key®III+ Operation........................... 137
602

Seats (cont.)
Heated Seats - Rear.................................. 17
Memory, Mirrors and Pedals...................... 12
Power Lumbar........................................... 10
Power Reclining Seatbacks........................ 14
Power Seats................................................ 9
Third Row Seat......................................... 32
Secondary Latch System............................. 518
Securing a Child Restraint
Center Front Seat Position......................... 85
Rear Seat Position..................................... 83
Right Front Seat Position........................... 86
Security Light.............................................. 241
Service........................................................ 420
Accessories and Modications.................. 421
Adding Equipment to the Outside of
Your Vehicle......................................... 423
California Proposition 65 Warning............. 421
Doing Your Own Work............................. 422
Engine Soon Light................................... 237
Publications Ordering Information............. 589
Servicing Your Airbag-Equipped Vehicle....... 106
Setting the Time.................................274, 275
Sheet Metal Damage................................... 533
Shifting Into Park (P)................................... 153
Shifting Out of Park (P)............................... 154
Shoulder Belt Height Adjuster........................ 50Signals, Turn and Lane-Change.................. 194
Spare Tire................................................... 526
Installing.................................................. 512
Removing................................................ 507
Storing..................................................... 522
Specications, Capacities............................ 546
Speedometer............................................... 227
Split Bench Seat (60/40)............................... 18
StabiliTrak
®System..................................... 349
StabiliTrak®Indicator Light........................... 235
Starting Your Engine................................... 141
Steering...................................................... 353
Steering Wheel Controls, Audio................... 335
Steering Wheel, Tilt Wheel.......................... 193
Storage Areas
Cargo Management System..................... 182
Center Console Storage Area................... 179
Convenience Net..................................... 180
Cupholder(s)............................................ 178
Glove Box................................................ 178
Instrument Panel Storage Area................. 178
Luggage Carrier....................................... 179
Rear Storage Area................................... 180
Stuck in Sand, Mud, Ice, or Snow............... 390
Sun Visors.................................................. 134
Sunroof....................................................... 185
605

Transmission
Fluid, Automatic....................................... 440
Transmission Operation, Automatic.............. 145
Trip Odometer............................................. 227
Turn and Lane-Change Signals................... 194
Turn Signal/Multifunction Lever.................... 193
U
Ultrasonic Rear Parking Assist (URPA)........ 208
Understanding Radio Reception................... 336
Uniform Tire Quality Grading....................... 501
Universal Home Remote System........166, 167
Operation........................................168, 174
V
Vehicle
Control..................................................... 346
Damage Warnings....................................... 5
Loading.................................................... 392
Symbols...................................................... 5
Vehicle Customization, DIC......................... 262Vehicle Data Collection and Event Data
Recorders................................................ 582
Vehicle Identication
Number (VIN).......................................... 536
Service Parts Identication Label.............. 536
Ventilation Adjustment.................................. 222
Visors.......................................................... 134
Voltmeter Gage........................................... 232
W
Warning Lights, Gages and Indicators......... 225
Warnings
DIC Warnings and Messages................... 252
Hazard Warning Flashers......................... 192
Other Warning Devices............................ 192
Safety and Symbols..................................... 4
Vehicle Damage.......................................... 5
Wheels
Alignment and Tire Balance..................... 502
Different Size........................................... 500
Replacement............................................ 503
Where to Put the Restraint............................ 72
607