CADILLAC STS 2009 1.G Owners Manual

{CAUTION:
Changing a tire can be dangerous. The vehicle
can slip off the jack and roll over or fall on you or
other people. You and they could be badly injured
or even killed. Find a level place to change your
tire. To help prevent the vehicle from moving:
1. Set the parking brake rmly.
2. Put the shift lever in P (Park).
3. Turn off the engine and do not restart while
the vehicle is raised.
4. Do not allow passengers to remain in the
vehicle.
To be even more certain the vehicle will not move,
you should put blocks at the front and rear of the
tire farthest away from the one being changed.
That would be the tire, on the other side, at the
opposite end of the vehicle.When the vehicle has a at tire (B), use the following
example as a guide to assist you in the placement
of wheel blocks (A).
A. Wheel Block
B. Flat Tire
The following information explains how to use the jack
and change a tire.
5-105

Removing the Spare Tire and Tools
The equipment you will need is located in the trunk.
To access to the compact spare tire and jacking
equipment:
1. Open the trunk. SeeTrunk on page 2-15for more
information.
2. Remove the compact spare tire cover.
3. Pull the stow rod (A) to remove it.
4. Turn the nut (B) holding the jack package container
counterclockwise and remove it. Then remove the
jack and wheel wrench.
5. Remove the compact spare tire. SeeCompact
Spare Tire on page 5-114for more information
about the compact spare tire.
5-106

The tools you will be using include the jack (A) and the
wheel wrench (B).
Removing the Flat Tire and
Installing the Spare Tire
1. Do a safety check before proceeding. SeeChanging
a Flat Tire on page 5-104for more information.
2. Loosen all of the wheel nuts, but do not remove
them yet, using the wheel wrench. Turn the
handle about 180 degrees, then ip the handle
back to the starting position. This avoids taking
the wrench off the lug nut for each turn.
5-107

3. Find the vehicle’s jacking location using the
diagram above and corresponding V–shaped
notches located in the plastic molding on the
vehicle’s frame. The notches in the plastic molding
are marked with a triangle shape.
4. Attach the wheel wrench to the jack.
{CAUTION:
Getting under a vehicle when it is jacked up is
dangerous. If the vehicle slips off the jack, you
could be badly injured or killed. Never get under
a vehicle when it is supported only by a jack.
{CAUTION:
Raising your vehicle with the jack improperly
positioned can damage the vehicle and even
make the vehicle fall. To help avoid personal injury
and vehicle damage, be sure to t the jack lift
head into the proper location before raising the
vehicle.
5-108

{CAUTION:
Lifting a vehicle and getting under it to do
maintenance or repairs is dangerous without the
appropriate safety equipment and training. If a jack
is provided with the vehicle, it is designed only for
changing a at tire. If it is used for anything else,
you or others could be badly injured or killed if the
vehicle slips off the jack. If a jack is provided with
the vehicle, only use it for changing a at tire.
Notice:If you position the jack under the rocker
molding and attempt to raise the vehicle, you could
break the molding and/or cause other damage to your
vehicle. Always position the jack so that when the
jack head is raised, it will t rmly in the notch
located inboard from the rocker molding.
5. Turn the wheel wrench counterclockwise to lower
the jack lift head until the jack ts under the vehicle.6. Raise the jack by turning the wheel wrench
clockwise until the slots in the jack head t into
the metal ange located behind the triangle on
the plastic molding as shown.
7. Put the compact spare tire near you.
5-109

8. Raise the vehicle by turning the wheel wrench
clockwise. Raise the vehicle far enough off the
ground for the compact spare tire to t under
the vehicle.9. Remove all the wheel
nuts and the at tire.
{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 changing a wheel, remove any rust
or dirt from places where the wheel attaches to the
vehicle. In an emergency, 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 5-104.
5-110

{CAUTION:
Never use oil or grease on bolts or nuts because
the nuts might come loose. The vehicle’s wheel
could fall off, causing a crash.
10. Remove any rust or dirt
from the wheel bolts,
mounting surfaces,
and spare wheel.
11. Install the spare tire.12. Put the wheel nuts back on with the rounded end of
the nuts toward the wheel.
13. Tighten each wheel nut by turning it clockwise with
your hand until the wheel is held against the hub.
14. Lower the vehicle by turning the wheel wrench
counterclockwise. Lower the jack completely.
5-111

{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 you can and
have the nuts tightened with a torque wrench to the
proper torque specication. SeeCapacities and
Specifications on page 5-134for 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 5-134for the wheel nut torque specication.15. Tighten the wheel nuts
rmly in a crisscross
sequence as shown.
Storing a Flat or Spare Tire and
Tools
{CAUTION:
Storing a jack, a tire, or other equipment in the
passenger compartment of the vehicle could
cause injury. In a sudden stop or collision, loose
equipment could strike someone. Store all these
in the proper place.
5-112

Full-Size Tire and Tools
After you have put the compact spare tire on your
vehicle, you will need to do the following to store
the at tire in your trunk.
1. Open the trunk. SeeTrunk on page 2-15.
2. Store the jack and wheel wrench in the jack
container in the trunk.
When storing the jack, in the container, it must be
raised until the screw end is ush with the edge
of the jack.
3. Store the at tire as far forward in the trunk as
possible.
The compact spare is for temporary use only. Replace
the compact spare tire with a full-size tire as soon
as you can.
Compact Spare Tire and Tools
Use the following diagram as a guide for storing the
compact spare tire and tools in the trunk:
A. Compact Spare
Tire Cover
B. Stow Rod Cap
C. Plastic Wing Nut
D. RetainerE. Jack Container
Package (With Wheel
Wrench and Jack)
F. Compact Spare Tire
G. Foam Support
H. Bolt
1. Open the trunk. SeeTrunk on page 2-15.
2. Make sure the foam support (G) is in place in the
trunk area.
5-113

3. Reinstall the compact spare tire (F) making sure to
line up the wheel center hole with the bolt (H) and
place on the compartment oor.
4. Insert the jack container (E) with wheel wrench and
jack into the center of the compact spare tire making
sure to line up the wheel nut hole with the bolt (H) on
the compartment oor.
5. Secure the tire and wheel with the retainer (D) and
wing nut (C).
6. Cover the exposed bolt with the stow rod cap (B).
7. Reinstall the compact spare tire cover (A).
Compact Spare Tire
Although the compact spare tire was fully inated
when the vehicle was new, it can lose air after a time.
Check the ination pressure regularly. It should be
60 psi (420 kPa).
After installing the compact spare on the vehicle, you
should stop as soon as possible and make sure the spare
tire is correctly inated. The compact spare is made to
perform well at speeds up to 65 mph (105 km/h) for
distances up to 3,000 miles (5 000 km), so you can nishyour trip and have the full-size tire repaired or replaced
where you want. You must calibrate the tire ination
monitor system after installing or removing the compact
spare. SeeTire Pressure Monitor System on page 5-66.
The system may not work correctly when the compact
spare is installed on the vehicle. Of course, it’s best to
replace the spare with a full-size tire as soon as you can.
The spare will last longer and be in good shape in case
you need it again.
Notice:When the compact spare is installed,
do not take the vehicle through an automatic car
wash with guide rails. The compact spare can
get caught on the rails which can damage the
tire, wheel and other parts of the vehicle.
Do not use the compact spare on other vehicles.
And do not mix the compact spare tire or wheel with
other wheels or tires. They will not t. Keep the
spare tire and its wheel together.
Notice:Tire chains will not t the compact spare.
Using them can damage the vehicle and can damage
the chains too. Do not use tire chains on the
compact spare.
5-114