2005 GMC YUKON XL check engine light

(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 blade inserts 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,
door hinges, liftgate hinge, liftgate linkage, liftgate handle
pivot points, latch bolt, fuel 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)Inspect system. Check all fuel and vapor lines and
hoses for proper hook-up, routing and condition.
Check that the purge valve works properly (if equipped).
Replace as needed.
(h)Change automatic transmission uid and lter if the
vehicle is mainly driven under one or more of these
conditions:
In heavy city traffic where the outside temperature
regularly reaches 90°F (32°C) or higher.
In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such as found in taxi, police or delivery
service.
(i)Drain, ush and rell cooling system. This service
can be complex; you should have your dealer perform
this service. See Engine Coolant on page 5-25 for
what to use. Inspect hoses. Clean radiator, condenser,
pressure cap and ller neck. Pressure test the cooling
system and pressure cap.
(j)A uid loss in any vehicle system could indicate a
problem. Have the system inspected and repaired and
the uid level checked. Add uid if needed.
(k)If you drive regularly under dusty conditions, inspect
the lter at each engine oil change.
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Carbon Monoxide...................2-14, 2-30, 4-38, 4-52
Care of
Safety Belts................................................5-98
Your Cassette Tape Player..........................3-100
Your CD and DVD Player...........................3-102
Your CD Player.........................................3-101
Your CDs and DVDs..................................3-101
Cargo Cover..................................................2-46
CD Changer...................................................3-96
Center Console Storage Area...........................2-43
Center Passenger Position, Safety Belts.............1-40
Chains, Tire...................................................5-73
Charging System Light....................................3-33
Check
Engine Light...............................................3-39
Checking Things Under the Hood......................5-10
Chemical Paint Spotting.................................5-102
Child Restraints
Child Restraint Systems...............................1-53
Infants and Young Children...........................1-50
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-61
Older Children.............................................1-47
Securing a Child Restraint Designed for
the LATCH System...................................1-63
Securing a Child Restraint in a Center
Rear Seat Position...................................1-65Child Restraints (cont.)
Securing a Child Restraint in a Rear
Outside Seat Position...............................1-63
Securing a Child Restraint in the Right
Front Seat Position...................................1-67
Top Strap...................................................1-57
Top Strap Anchor Location............................1-58
Where to Put the Restraint...........................1-56
Chime Level Adjustment.................................3-102
Cigarette Lighter.............................................3-20
Cleaning
Aluminum Wheels......................................5-100
Exterior Lamps/Lenses.................................5-98
Fabric/Carpet..............................................5-95
Finish Care.................................................5-99
Glass Surfaces............................................5-97
Instrument Panel.........................................5-97
Interior Plastic Components...........................5-97
Leather......................................................5-97
Speaker Covers..........................................5-97
Tires........................................................5-101
Underbody Maintenance.............................5-102
Vinyl..........................................................5-96
Washing Your Vehicle...................................5-98
Weatherstrips..............................................5-98
Windshield, Backglass, and Wiper Blades......5-100
Wood Panels..............................................5-97
3

Driving
At Night.....................................................4-29
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Freeway.....................................................4-34
Hill and Mountain Roads..............................4-36
In Rain and on Wet Roads...........................4-31
Recovery Hooks..........................................4-43
Rocking Your Vehicle to Get it Out.................4-42
Winter........................................................4-38
Dual Automatic Climate Control System.............3-20
DVD
Rear Seat Entertainment System...................3-83
E
Electrical System
Add-On Equipment.....................................5-105
Center Instrument Panel Fuse Block.............5-108
Fuses and Circuit Breakers.........................5-105
Instrument Panel Fuse Block.......................5-106
Power Windows and Other Power Options....5-105
Underhood Fuse Block...............................5-109
Windshield Wiper Fuses.............................5-105
Engine
Air Cleaner/Filter.........................................5-19
Battery.......................................................5-41Engine (cont.)
Check and Service Engine Soon Light............3-39
Coolant......................................................5-25
Coolant Heater............................................2-22
Coolant Temperature Gage...........................3-37
Engine Compartment Overview......................5-12
Exhaust.....................................................2-30
Fan Noise..................................................5-35
Oil .............................................................5-14
Overheated Protection Operating Mode...........5-30
Overheating................................................5-28
Starting......................................................2-21
Entry Lighting.................................................3-18
Event Data Recorders (EDR)............................7-10
Exit Lighting...................................................3-18
Extender, Safety Belt.......................................1-47
F
Filter
Engine Air Cleaner......................................5-19
Finish Damage.............................................5-101
Fixed Mast Antenna.......................................3-102
Flash-to-Pass................................................... 3-9
Flat Tire........................................................5-74
Flat Tire, Changing.........................................5-74
Flat Tire, Storing.............................................5-90
5

Reporting Safety Defects
Canadian Government..................................7-12
General Motors...........................................7-12
United States Government............................7-11
Restraint System Check
Checking Your Restraint Systems...................1-85
Replacing Restraint System Parts
After a Crash..........................................1-86
Restraint Systems
Checking....................................................1-85
Replacing Parts...........................................1-86
Retained Accessory Power (RAP)......................2-20
Right Front Passenger Position, Safety Belts......1-40
Roadside
Assistance Program....................................... 7-6
Rocking Your Vehicle to Get it Out....................4-42
Running Your Engine While You Are Parked.......2-31
S
Safety Belt
Reminder Light............................................3-30
Safety Belts
Care of......................................................5-98
Center Passenger Position............................1-40
Driver Position............................................1-32Safety Belts (cont.)
How to Wear Safety Belts Properly................1-32
Questions and Answers About Safety Belts.....1-31
Rear Safety Belt Comfort Guides for
Children and Small Adults.........................1-44
Rear Seat Passengers.................................1-41
Right Front Passenger Position......................1-40
Safety Belt Extender....................................1-47
Safety Belt Use During Pregnancy.................1-39
Safety Belts Are for Everyone.......................1-27
Safety Warnings and Symbols.............................. iii
Scheduled Maintenance..................................... 6-4
Seats
50/50 Split Bench Seat.................................1-13
60/40 Split Bench Seat.................................1-10
Bench Seat................................................1-18
Bucket Seats, Rear......................................1-24
Head Restraints............................................ 1-7
Heated Seats............................................... 1-5
Heated Seats, Rear....................................... 1-9
Memory.....................................................2-48
Power Lumbar.............................................. 1-4
Power Seats................................................. 1-3
Rear Seat Operation...................................... 1-8
Reclining Seatbacks...................................... 1-6
Secondary Latch System.................................5-86
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