CADILLAC DTS 2008 1.G Owners Manual

Changing a Flat Tire
If a tire goes at, avoid further tire and wheel damage
by driving slowly to a level place. Turn on your vehicle’s
hazard warning ashers. SeeHazard Warning Flashers
on page 3-6for more information.
{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.
CAUTION: (Continued)
CAUTION: (Continued)
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 your vehicle has a at tire, use the following
example as a guide to assist you in the placement of
wheel blocks.
The following information tells you how to use the jack
and change a tire.
5-79

Removing the Spare Tire and Tools
The equipment needed is in the trunk. To access
the equipment:
1. Open the trunk. SeeTrunk on page 2-12for more
information.
2. Press the area at the
front of the handle
located on the cover
so that the back
edge raises.3. Grab the handle and
remove the cover.
4. Turn the wing nut to remove the retainer that holds
the wrench and jack.
5-80

5. Remove the wheel wrench, jack and spare tire from
the trunk. SeeSpare Tire on page 5-89for more
information.
The tools to be used are 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 5-79for more information.
2. For models having aluminum wheels with a center
wheel cover, use the at end of the wheel wrench to
gently pry the wheel covers off. Store the wheel
cover and lug nut caps in the trunk until you have the
at tire repaired or replaced. Be careful not to scratch
the aluminum wheel edge and do not try to remove it
with your hands. Then loosen the wheel nuts with the
wheel wrench. Do not remove them yet.
5-81

3. For models with exposed lug nuts, loosen them
using the wheel wrench. Do not remove them yet.4. Find the jacking location from the diagram above
and use the corresponding cutouts located in the
plastic molding.
The front location is (A) 8.5 inches (21 cm) from
the rear edge of the front wheel well, and the rear
location (B) is 3.5 inches (8.5 cm) from the front
edge of the rear wheel well.
The notches may also be labeled JACK with an
arrow pointing to the jacking location on the vehicle.
5-82

{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.
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 jack handle counterclockwise to lower the
jack lift head until the jack ts under the vehicle.
6. Raise the jack until the metal ange ts rmly into
the channel of the jack head.
7. Put the spare tire near you.
5-83

8. Raise the vehicle by turning the jack handle
clockwise. Raise the vehicle far enough off the
ground for the spare tire to t under the vehicle.9. Remove all wheel nuts and the at tire.
10. Remove any rust or dirt
from the wheel bolts,
mounting surfaces, and
spare wheel.
5-84

{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 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 5-79.
11. Place the spare tire on the wheel-mounting surface.
{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.
12. Put the wheel nuts
back on with the
rounded end of the
nuts toward the wheel.
Tighten each nut by
hand until the wheel is
held against the hub.
5-85

13. Lower the vehicle by turning the jack handle
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 you can and have the
nuts tightened with a torque wrench to the
proper torque specication. SeeCapacities
and Specifications on page 5-109for 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 5-109for the wheel nut torque specication.
5-86

14. Tighten the wheel nuts rmly in a crisscross
sequence as shown.
If your vehicle is equipped with wheel nut covers,
screw the nut covers on with your ngers, then
tighten one-quarter turn with the wheel wrench.
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.
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.
After you have put the spare tire on your vehicle, store
the at tire in your trunk.
Store the at tire as far forward in the trunk as possible.
Store the jack and wheel wrench in their compartment
in the trunk. For storage, the jack must be raised
until the screw end is ush with the edge of the jack.
The compact spare is for temporary use only. Replace
the compact spare tire with a full-size tire as soon
as you can. 5-Wheel Nuts
8-Wheel Nuts
5-87

A. Cover
B. Wing Nut
C. Retainer
D. Jack and Wheel Wrench
E. Jack Container
F. Spare Tire
G. Bolt1. Open the trunk. SeeTrunk on page 2-12.
2. Reinstall the spare tire (F) making sure to line up
the wheel center hole with the bolt (G) and place it
on the compartment oor.
3. Insert the jack container (E) into the spare tire (F).
Then insert the jack and wheel wrench (D) into the
center of the spare tire making sure to line up
the wheel nut hole with the bolt (G) on the
compartment oor.
4. Secure the spare tire and the jack container with
the retainer (C) and then the wing nut (B).
5. Reinstall the spare tire cover (A).
5-88