wheel torque GMC ACADIA 2009 Owner's Manual

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 time the brakes are applied,
with or without the vehicle moving,
the 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 designedand tested with top-quality brake
parts. When parts of the braking
system are replaced — for example,
when the brake linings wear down
and new ones are installed — be
sure to get new approved
replacement parts. If this is not
done, the brakes might not work
properly. For example, if someone
puts in brake linings that are wrong
for the vehicle, the balance between
the front and rear brakes can
change — for the worse. The braking
performance expected can change
in many other ways if the wrong
replacement brake parts are
installed.
Service and Appearance Care 5-27

Reset the Tire Pressure Monitor
System. SeeTire Pressure
Monitor Operation on page 5-44.
Make certain that all wheel
nuts are properly tightened.
See “Wheel Nut Torque” under
Capacities and Specifications
on page 5-96.
{CAUTION
Rust or dirt on a wheel, or
on the parts to which it is
fastened, can make wheel
nuts become loose after time.
The wheel could come off and
cause an accident. When you
change a wheel, remove any
(Continued)
CAUTION (Continued)
rust or dirt from places where
the wheel attaches to the
vehicle. In an emergency, you
can use a cloth or a paper
towel to do this; but be sure to
use a scraper or wire brush
later, if needed, to get all the
rust or dirt off. SeeChanging
a Flat Tire on page 5-69.
Make sure the spare tire, if
the vehicle has one, is stored
securely. Push, pull, and then
try to rotate or turn the tire. If it
moves, tighten the cable. See
Storing a Flat or Spare Tire and
Tools on page 5-78.When It Is Time for New
Tires
Various factors, such as
maintenance, temperatures, driving
speeds, vehicle loading, and road
conditions inuence when you need
new tires.
One way to tell when it is time for
new tires is to check the treadwear
indicators, which will appear
when the tires have only 1/16 inch
(1.6 mm) or less of tread remaining.
5-48 Service and Appearance Care

12. Put the nuts on by hand by
turning the clockwise until
the wheel is held against the
mounting surface. Make
sure the rounded end is
toward the wheel.
13. Lower the vehicle by attaching
the lug wrench to the jack
and turning the wrench
counterclockwise. Lower
the jack completely.
{CAUTION
Incorrect or improperly tightened
wheel nuts can cause the wheel
to come loose and even come off.
This could lead to a crash. If you
have to replace them, be sure to
get new original equipment wheel
nuts. Stop somewhere as soon as
(Continued)
CAUTION (Continued)
you can and have the nuts
tightened with a torque wrench to
the proper torque specication.
SeeCapacities and Specifications
on page 5-96for wheel nut torque
specication.
Notice:Improperly tightened
wheel nuts can lead to brake
pulsation and rotor damage.
To avoid expensive brake repairs,
evenly tighten the wheel nuts
in the proper sequence and to
the proper torque specication.
SeeCapacities and Specifications
on page 5-96for the wheel nut
torque specication.14. Tighten the wheel nuts rmly
in a crisscross sequence, as
shown.
Notice:Wheel covers will not t
on your vehicle’s compact spare.
If you try to put a wheel cover on
the compact spare, the cover or
the spare could be damaged.
Service and Appearance Care 5-75

Capacities and Specications
The following approximate capacities are given in English and metric conversions. SeeRecommended Fluids and
Lubricants on page 6-12 for more information.
Application Capacities
English Metric
Air Conditioning Refrigerant R134a For the air conditioning system refrigerant charge
amount, see the refrigerant caution label located
under the hood. See your dealer/retailer for more information.
Cooling System 11.4 qt 10.8 L
Engine Oil with Filter 5.5 qt 5.2 L
Fuel Tank 22.0 gal 83.3 L
Transmission Fluid* 5.3 qt 5.0 L
Wheel Nut Torque 140 lb ft 190 Y
*Transmission uid capacity is approximate. See Automatic Transmission Fluid on page 5-16for information on
checking uid level.
All capacities are approximate. When adding, be sure to ll to the approximate level, as recommended in this
manual. Recheck uid level after lling.
Engine Specications
Engine VIN CodeTransmission Spark Plug Gap
3.6L V6 Engine DAutomatic 0.043 in (1.10 mm)
5-96 Service and Appearance Care