cooling GMC SIERRA 2007 Owner's Guide

Maintenance Footnotes
(Gasoline Engine)
This maintenance section applies to vehicles with
a gasoline engine. If your vehicle has a diesel
engine, see the maintenance schedule section in
the DURAMAX
®Diesel Engine Supplement.
†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,
transmission shift linkage, and parking brake
cable guides. Control arm ball joints on 2500/3500
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. Vehicles used under severe
commercial operating conditions require lubrication
on a regular basis every 3,000 miles (5 000 km).(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 drum brake
linings/shoes for wear or cracks. Inspect other
brake parts, including drums, wheel cylinders,
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.
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(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, body door
hinges, hood latch assembly, secondary latch,
pivots, spring anchor, release pawl, tailgate hinges,
tailgate linkage, tailgate 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. Check to be sure vent hose
is unobstructed, clear, and free of debris.(h)Change automatic transmission uid and lter
if the vehicle Gross Vehicle Weight Rating
(GVWR) is over 8600 lbs or 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 513 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.
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Cleaning (cont.)
Weatherstrips........................................... 601
Windshield and Wiper Blades................... 603
Climate Control System......................234, 237
Dual Automatic......................................... 238
Outlet Adjustment..................................... 245
Clock.......................................................... 301
Collision Damage Repair............................. 657
Comfort Guides, Rear Safety Belt................. 41
Compass............................................169, 173
Content Theft-Deterrent............................... 128
Control of a Vehicle..................................... 378
Coolant
Engine Temperature Gage........................ 258
Heater, Engine......................................... 136
Surge Tank Pressure Cap........................ 516
Cooling System........................................... 520
Cruise Control............................................. 218
Cruise Control Light.................................... 265
Cupholder(s)................................................ 196
Customer Assistance Information
Courtesy Transportation........................... 653
Customer Assistance for Text Telephone
(TTY) Users.......................................... 648
Customer Assistance Offices.................... 648
Customer Satisfaction Procedure.............. 644
GM Mobility Reimbursement Program...... 649Customer Assistance Information (cont.)
Reporting Safety Defects to General
Motors.................................................. 662
Reporting Safety Defects to the
Canadian Government.......................... 662
Reporting Safety Defects to the United
States Government............................... 662
Roadside Assistance Program.................. 650
Service Publications Ordering
Information........................................... 663
D
Daytime Running Lamps............................. 222
Defensive Driving........................................ 374
Delayed Locking.......................................... 119
Disc, MP3..........................................339, 345
Doing Your Own Service Work.................... 487
Dome Lamp Override.................................. 226
Dome Lamps............................................... 226
Door
Delayed Locking...................................... 119
Locks....................................................... 118
Power Door Locks................................... 119
Programmable Automatic Door Locks....... 119
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