cooling GMC YUKON 2009 Owner's Guide

Maintenance Footnotes
†The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not nullify
the emission warranty or limit recall liability prior to
the completion of the vehicle’s useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the
maintenance be recorded.
#Lubricate the front suspension, steering linkage, and
parking brake cable guides. Control arm ball joints on
2500 series vehicles require lubrication but should not be
lubricated unless their temperature is 10°F (−12°C) or
higher, or they could be damaged. Control arm ball joints
on 1500 series vehicles are maintenance-free.
(a)Visually inspect brake lines and hoses for proper
hook-up, binding, leaks, cracks, chafing, 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, chafing, 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,
fittings, and clamps; replace with genuine 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)Inspect wiper blades for wear, cracking, or
contamination. Clean the windshield and wiper blades,
if contaminated. Replace wiper blades that are worn or
damaged. See Windshield Wiper Blade Replacement on
page 5-60 and Windshield, Backglass, and Wiper Blades
on page 5-112 for more information.
(e)Make sure the safety belt reminder light and safety
belt assemblies 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 see Checking the Restraint Systems
on page 1-98.
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(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. Check to be sure vent hose is unobstructed,
clear, and free of debris. During any maintenance, if a
power washer is used to clean mud and dirt from the
underbody, care should be taken to not directly spray the
transfer case output seals. High pressure water can
overcome the seals and contaminate the transfer case
fluid. Contaminated fluid will decrease the life of the
transfer case and should be replaced.
(h)Change automatic transmission fluid and filter 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, flush, and refill cooling system. This service can
be complex; you should have your dealer/retailer perform
this service. See Engine Coolant on page 5-29 for what to
use. Inspect hoses. Clean radiator, condenser, pressure
cap, and filler neck. Pressure test the cooling system and
pressure cap.
(j)A fluid loss in any vehicle system could indicate a
problem. Have the system inspected and repaired and
the fluid level checked. Add fluid if needed.
(k)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.
(l)If driving regularly under dusty conditions, inspect the
filter at each engine oil change.
(m)Visually inspect belt for fraying, excessive cracks, or
obvious damage. Replace belt if necessary.
(n)Severe Service: Change transfer case fluid if the
vehicle is mainly used for trailer towing or driven in city
traffic, wet environment, or high ambient temperatures.
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Child Restraints
Child Restraint Systems...............................1-61
Infants and Young Children...........................1-57
Lower Anchors and Tethers for
Children..................................................1-66
Older Children.............................................1-54
Securing a Child Restraint in a
Rear Seat Position...................................1-73
Securing a Child Restraint in the
Center Front Seat Position........................1-77
Securing a Child Restraint in the
Right Front Seat Position..........................1-78
Where to Put the Restraint...........................1-64
Cigarette Lighter.............................................3-21
Cleaning
Aluminum or Chrome-Plated Wheels.............5-113
Exterior Lamps/Lenses................................5-111
Fabric/Carpet............................................5-109
Finish Care...............................................5-112
Instrument Panel, Vinyl, and Other Plastic
Surfaces...............................................5-110
Interior.....................................................5-108
Leather....................................................5-110
Tires........................................................5-114
Underbody Maintenance.............................5-114
Washing Your Vehicle.................................5-111
Weatherstrips............................................5-111
Windshield, Backglass, and Wiper Blades......5-112
Climate Control System...................................3-22
Dual Automatic............................................3-25Climate Control System (cont.)
Outlet Adjustment........................................3-31
Rear Air Conditioning and Heating
System...................................................3-31
Rear Air Conditioning and Heating
System, Electronic....................................3-33
Clock, Setting.................................................3-84
Collision Damage Repair..................................7-11
Compass.......................................................3-61
Content Theft-Deterrent....................................2-21
Control of a Vehicle
.......................................... 4-3
Coolant
Engine.......................................................5-29
Engine Temperature Gage............................3-43
Cooled Seats................................................... 1-8
Cooling System..............................................5-28
Cruise Control................................................3-12
Cruise Control Light........................................3-49
Cupholders....................................................2-74
Customer Assistance Information
Courtesy Transportation................................7-10
Customer Assistance for Text Telephone
(TTY) Users.............................................. 7-6
Customer Assistance Offices........................... 7-6
Customer Satisfaction Procedure..................... 7-2
GM Mobility Reimbursement Program............... 7-7
Reporting Safety Defects to
General Motors........................................7-15
Reporting Safety Defects to the
Canadian Government..............................7-15
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