2007 GMC YUKON XL brake light

(a)Visually inspect brake lines and hoses for
proper hook-up, binding, leaks, cracks, chang,
etc. Inspect disc brake pads for wear and rotors for
surface condition. Inspect other brake parts,
including calipers, parking brake, etc.
(b)Visually inspect front and rear suspension and
steering system for damaged, loose, or missing
parts, signs of wear, or lack of lubrication. Inspect
power steering lines and hoses for proper
hook-up, binding, leaks, cracks, chang, etc.
Visually check constant velocity joints, rubber
boots, and axle seals for leaks.
(c)Visually inspect hoses and have them replaced
if they are cracked, swollen, or deteriorated.
Inspect all pipes, ttings, and clamps; replace with
genuine GM parts as needed. To help ensure
proper operation, a pressure test of the cooling
system and pressure cap and cleaning the outside
of the radiator and air conditioning condenser is
recommended at least once a year.
(d)Visually inspect wiper blades for wear or
cracking. Replace wiper blades that appear worn
or damaged or that streak or miss areas of
the windshield.(e)Make sure the safety belt reminder light and all
your belts, buckles, latch plates, retractors, and
anchorages are working properly. Look for
any other loose or damaged safety belt system
parts. If you see anything that might keep a safety
belt system from doing its job, have it repaired.
Have any torn or frayed safety belts replaced. Also
look for any opened or broken airbag coverings,
and have them repaired or replaced. The
airbag system does not need regular maintenance.
(f)Lubricate all key lock cylinders, hood latch
assembly, secondary latch, pivots, spring anchor,
release pawl, rear compartment hinges, outer
liftgate handle pivot points, rear door detent link,
roller mechanism, liftgate handle pivot points, latch
bolt, fuel door hinge, cargo door hinge, locks,
and folding seat hardware. More frequent
lubrication may be required when exposed to a
corrosive environment. Applying silicone grease on
weatherstrips with a clean cloth will make them
last longer, seal better, and not stick or squeak.
(g)Check vent hose at transfer case for kinks and
proper installation.
559

A
Accessories and Modications...................... 426
Accessory Power Outlet(s)........................... 208
Adding a Snow Plow or Similar Equipment...... 396
Adding Equipment to Your
Airbag-Equipped Vehicle........................... 105
Additives, Fuel............................................. 429
Add-On Electrical Equipment........................ 539
Adjustable Throttle and Brake Pedal............. 140
Air Cleaner/Filter, Engine.............................. 443
Air Conditioning....................................210, 213
Airbag
Passenger Status Indicator....................... 228
Readiness Light........................................ 227
Airbag Sensing and Diagnostic
Module (SDM).......................................... 583
Airbag System............................................... 90
Adding Equipment to Your
Airbag-Equipped Vehicle........................ 105
How Does an Airbag Restrain?................... 98
Passenger Sensing System....................... 100
Servicing Your Airbag-Equipped Vehicle...... 104
What Makes an Airbag Inate?................... 98Airbag System (cont.)
What Will You See After an
Airbag Inates?....................................... 99
When Should an Airbag Inate?.................. 96
Where Are the Airbags?.............................. 93
Antenna, Rear Side Window........................ 337
Antenna, XM™ Satellite Radio
Antenna System....................................... 337
Anti-Lock Brake System (ABS)..................... 345
Anti-Lock Brake, System Warning Light........ 233
Appearance Care......................................... 527
Aluminum or Chrome-Plated Wheels......... 534
Care of Safety Belts................................. 531
Chemical Paint Spotting............................ 536
Cleaning Exterior Lamps/Lenses............... 532
Cleaning the Inside of Your Vehicle........... 528
Fabric/Carpet............................................ 529
Finish Care............................................... 532
Finish Damage.......................................... 536
Instrument Panel, Vinyl, and Other
Plastic Surfaces..................................... 531
Leather..................................................... 530
Sheet Metal Damage................................ 535
Tires......................................................... 535
Underbody Maintenance............................ 536
593

Appearance Care (cont.)
Vehicle Care/Appearance Materials........... 537
Washing Your Vehicle............................... 532
Weatherstrips............................................ 531
Windshield, Backglass, and Wiper Blades.... 534
Ashtray(s)..................................................... 209
Audio System(s)........................................... 274
Audio Steering Wheel Controls................. 334
Care of Your CD and DVD Player............. 337
Care of Your CDs and DVDs.................... 336
Navigation/Radio System,
see Navigation Manual.......................... 321
Radio with CD.......................................... 278
Radio with CD and DVD........................... 295
Rear Seat Audio (RSA)............................. 332
Rear Side Window Antenna...................... 337
Setting the Time................................276, 277
Theft-Deterrent Feature............................. 334
Understanding Radio Reception................ 335
XM™ Satellite Radio Antenna System....... 337
Automatic Headlamp System........................ 201
Automatic Transmission
Fluid......................................................... 445
Operation.................................................. 142
Autoride
®..................................................... 405
Auxiliary Roof Mounted Lamp Switch........... 203
B
Battery......................................................... 466
Run-Down Protection................................ 204
Before Leaving on a Long Trip..................... 380
Bench Seat, Split (60/40)............................... 20
Brake
Anti-Lock Brake System (ABS).................. 345
Emergencies............................................. 347
Parking..................................................... 151
System Warning Light............................... 232
Brake Pedal, Throttle.................................... 140
Brakes......................................................... 463
Braking........................................................ 344
Braking in Emergencies................................ 347
Break-In, New Vehicle.................................. 136
Bucket Seats, Rear........................................ 26
Bulb Replacement........................................ 478
Halogen Bulbs.......................................... 478
Headlamp Aiming...................................... 475
License Plate Lamps................................. 480
Replacement Bulbs................................... 481
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps..................................... 478
Buying New Tires......................................... 500
594

Lamps (cont.)
Dome Lamp Override................................ 204
Exterior..................................................... 199
Fog ........................................................... 202
Reading.................................................... 204
LATCH System
Child Restraints.......................................... 73
Level Control................................................ 404
License Plate Lamps.................................... 480
Liftgate, Power............................................. 125
Liftgate/Liftglass............................................ 123
Liftglass/Liftgate............................................ 123
Light
Airbag Readiness...................................... 227
Anti-Lock Brake System Warning.............. 233
Brake System Warning............................. 232
Charging System...................................... 230
Cruise Control........................................... 242
Fog Lamp................................................. 241
Highbeam On........................................... 242
Low Fuel Warning..................................... 243
Malfunction Indicator................................. 236
Oil Pressure.............................................. 240
Passenger Airbag Status Indicator............. 228
Passenger Safety Belt Reminder............... 227Light (cont.)
Safety Belt Reminder................................ 226
Security.................................................... 241
StabiliTrak
®Indicator................................. 234
Tire Pressure............................................ 235
Tow/Haul Mode......................................... 242
Lighting
Entry......................................................... 204
Exit........................................................... 204
Loading Your Vehicle.................................... 390
Locking Rear Axle........................................ 347
Lockout Protection........................................ 122
Locks
Delayed Locking....................................... 121
Door......................................................... 120
Lockout Protection.................................... 122
Power Door.............................................. 121
Programmable Automatic Door Locks........ 121
Rear Door Security Locks......................... 122
Loss of Control............................................ 355
Low Fuel Warning Light............................... 243
Luggage Carrier........................................... 175
Lumbar
Power Controls........................................... 11
600

Oil
Engine...................................................... 438
Pressure Gage.......................................... 239
Pressure Light.......................................... 240
Oil, Engine Oil Life System.......................... 441
Older Children, Restraints.............................. 61
Online Owner Center................................... 574
OnStar
®System, see OnStar®Manual......... 167
Other Warning Devices................................ 188
Outlet Adjustment......................................... 220
Outlet(s), Accessory Power........................... 208
Outside
Automatic Dimming Mirror......................... 166
Convex Mirror........................................... 166
Curb View Assist Mirrors........................... 166
Heated Mirrors.......................................... 167
Manual Mirrors.......................................... 163
Power Foldaway Mirrors............................ 165
Power Mirrors........................................... 164
Trailer-Tow Mirrors.................................... 163
Overheated Engine Protection
Operating Mode........................................ 454
Owner Checks and Services........................ 560
Owners, Canadian........................................... 3
P
Paint, Damage............................................. 536
Park Aid....................................................... 205
Park (P)
Shifting Into.............................................. 152
Shifting Out of.......................................... 154
Parking
Assist....................................................... 205
Brake........................................................ 151
Over Things That Burn............................. 154
Passenger Airbag Status Indicator................ 228
Passenger Sensing System.......................... 100
Passing........................................................ 353
PASS-Key
®III+............................................ 134
PASS-Key®III+ Operation............................ 134
Power
Accessory Outlet(s)................................... 208
Door Locks............................................... 121
Electrical System...................................... 539
Liftgate..................................................... 125
Lumbar Controls......................................... 11
Retained Accessory (RAP)........................ 138
Running Boards........................................ 129
Seat........................................................... 10
602