cooling HUMMER H3 2007 Owner's Manual

Additional Required Services (cont’d)
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)
Engine cooling system service (or every
ve years, whichever occurs rst).
An Emission Control Service.
See footnote (i).•
Inspect engine accessory drive belt.
An Emission Control Service.
See footnote (k).•
Maintenance Footnotes
#Lubricate the front suspension, steering linkage,
transmission shift linkage, and parking brake
cable guides. Control arm ball joints require
lubrication but should not be lubricated unless
their temperature is 10°F (-12°C) or higher, or
they could be damaged.
(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. Rotate and inspect
U-joints, retainers, and bolts on rear drive shaft
for seizing or loosening.
433

(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
swing-gate handle pivot points, rear door detent
link, roller mechanism, swing-gate 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)Check vent hose at transfer case for kinks and
proper installation.
(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.
434

(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 335 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)Visually inspect belt for fraying, excessive
cracks, or obvious damage. Replace belt if
necessary.Owner Checks and Services
These owner checks and services should be
performed at the intervals specied to help
ensure the safety, dependability, and emission
control performance of your vehicle. Your
GM Goodwrench
®dealer can assist you with
these checks and services.
Be sure any necessary repairs are completed at
once. Whenever any uids or lubricants are added
to your vehicle, make sure they are the proper
ones, as shown inRecommended Fluids and
Lubricants on page 440.
435

Cooling System........................................... 340
Cruise Control............................................. 159
Cruise Control Light.................................... 190
Cupholder(s)................................................ 143
Customer Assistance Information
Courtesy Transportation........................... 456
Customer Assistance for Text
Telephone (TTY) Users......................... 452
Customer Assistance Offices.................... 452
Customer Satisfaction Procedure.............. 448
GM Mobility Reimbursement Program...... 453
Reporting Safety Defects to
General Motors..................................... 464
Reporting Safety Defects to the
Canadian Government.......................... 464
Reporting Safety Defects to the
United States Government.................... 464
Roadside Assistance Program.................. 454
Service Publications Ordering
Information........................................... 465
D
Daytime Running Lamps............................. 164
Defensive Driving........................................ 234
Disc, MP3................................................... 222Doing Your Own Service Work.................... 315
Dome Lamp................................................ 167
Dome Lamp Override.................................. 168
Door
Locks......................................................... 92
Power Door Locks..................................... 93
Programmable Automatic Door Locks......... 94
Driver
Position, Safety Belt................................... 22
Driver Information Center (DIC)................... 192
DIC Controls and Displays....................... 192
DIC Warnings and Messages................... 196
Driving
At Night................................................... 272
City.......................................................... 276
Defensive................................................. 234
Drunken................................................... 235
Freeway................................................... 277
Hill and Mountain Roads.......................... 279
In Rain and on Wet Roads...................... 273
Off-Road.................................................. 250
Recovery Loops....................................... 287
Rocking Your Vehicle to Get it Out.......... 286
Winter...................................................... 281
470