brake pads HUMMER H3 2009 Owners Manual

Brake Wear
This vehicle has disc brakes. Disc
brake pads have built-in wear
indicators that make a high-pitched
warning sound when the brake
pads are worn and new pads are
needed. The sound can come
and go or be heard all the time the
vehicle is moving, except when
applying the brake pedal rmly.
{CAUTION
The brake wear warning sound
means that soon the brakes will
not work well. That could lead to
an accident. When the brake wear
warning sound is heard, have the
vehicle serviced.Notice:Continuing to drive with
worn-out brake pads could
result in costly brake repair.
Some driving conditions or climates
can cause a brake squeal when
the brakes are rst applied or lightly
applied. This does not mean
something is wrong with the brakes.
Properly torqued wheel nuts are
necessary to help prevent
brake pulsation. When tires are
rotated, inspect brake pads for wear
and evenly tighten wheel nuts in
the proper sequence to torque
specications inCapacities and
Specifications on page 5-96.
Brake linings should always be
replaced as complete axle sets.
Brake Pedal Travel
See your dealer/retailer if the brake
pedal does not return to normal
height, or if there is a rapid increase
in pedal travel. This could be a
sign that brake service might
be required.
Brake Adjustment
Every brake stop, the disc brakes
adjust for wear.
Replacing Brake System Parts
The braking system on a vehicle
is complex. Its many parts have
to be of top quality and work
well together if the vehicle is
to have really good braking.
The vehicle was designed and
tested with top-quality brake parts.
5-32 Service and Appearance Care

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, 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, 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. Rotate and inspect
U-joints, retainers, and bolts on
rear drive shaft for seizing or
loosening. (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.
Maintenance Schedule 6-7