Page 2097 of 2585

white letters. To remove the protective coating, apply
warm water and let it soak for a few minutes. After-
wards, scrub the coating away with a soft bristle
brush. Steam cleaning may also be used to remove
the coating.
CAUTION: DO NOT use gasoline, mineral oil, oil-
based solvent or a wire brush for cleaning.
WHEELS
DESCRIPTION - WHEEL
Original equipment wheels are designed for proper
operation at all loads up to the specified maximum
vehicle capacity.
All models use either steel or aluminum drop-cen-
ter wheels. Every wheel has raised sections between
the rim flanges and rim drop well called safety
humps (Fig. 28). Initial inflation of the tires forces
the bead over these raised sections. In case of air
loss, the safety humps hold the tire in position on the
wheel until the vehicle can be brought to a safe stop.
Cast aluminum wheels require special balance
weights to fit on the flange of the rim (Fig. 29).
When wheel alignment is necessary on a vehicle
with cast aluminum wheels, special wheel clamps are
required to avoid damage to the wheel's finish.
The wheel studs and nuts are designed for specific
wheel applications and must be replaced with equiv-
alent parts.
All aluminum wheels have wheel mounting (lug)
nuts with an enlarged nose. This enlarged nose is
necessary to ensure proper retention of the wheels.
DIAGNOSIS AND TESTING - WHEEL
INSPECTION
Inspect wheels for:
²Excessive runout
²Dents, cracks or irregular bends
²Damaged wheel stud (lug) holes
²Air Leaks
NOTE: Do not attempt to repair a wheel by hammer-
ing, heating or welding.
If a wheel is damaged, an original equipment
replacement wheel should be used. When obtaining
replacement wheels, they must be equivalent in load
carrying capacity. The diameter, width, offset, pilot
hole and bolt circle of the wheel should be the same
as the original wheel.
WARNING: FAILURE TO USE EQUIVALENT
REPLACEMENT WHEELS MAY ADVERSELY
AFFECT THE SAFETY AND HANDLING OF THE
VEHICLE.
WARNING: REPLACEMENT WITH USED WHEELS IS
NOT RECOMMENDED. THE SERVICE HISTORY OF
THE WHEEL MAY HAVE INCLUDED SEVERE TREAT-
MENT OR VERY HIGH MILEAGE. THE RIM COULD
FAIL WITHOUT WARNING.
CLEANING - ALUMINUM WHEEL CARE
Chrome plated and painted aluminum wheels
should be cleaned regularly using mild soap and
water to maintain their luster and to prevent corro-
sion.
Fig. 28 Safety Rim
1 - TIRE
2 - WELL
3 - SAFETY HUMPS
4 - FLANGE
Fig. 29 Styled Aluminum Wheel Weight
1 - TIRE
2 - WHEEL
3 - STYLED WHEEL WEIGHT
22 - 18 TIRES/WHEELSRS
TIRES (Continued)
Page 2098 of 2585

Care must be taken in the selection of tire and
wheel cleaning chemicals and equipment to prevent
damage to the wheels. Any of the ªDO NOT USEº
items listed below WILL damage chrome plated and
painted aluminum wheels.
DO NOT USE:
²any abrasive metal cleaner
²any abrasive cleaning pad or brush
²any cleaner that contains an acid (this will
immediately react with and discolor the chromium
surface)
²chrome polish (unless it is buffed off immedi-
ately after application)
²oven cleaner
²a car wash that uses carbide-tipped wheel clean-
ing brushes
SPECIFICATIONS
WHEEL
SPECIFICATIONS
DESCRIPTION SPECIFICATION
Wheel Mounting (Lug)
Nut Hex Size19 mm
Wheel Mounting Stud
SizeM12 x 1.5 mm
TORQUE SPECIFICATIONS
DESCRIPTION N´mFt.
Lbs.In.
Lbs.
TPM Sensor Mounting Nut 4 Ð 35
Wheel Mounting (Lug ) Nut 135 100 Ð
WHEEL COVER
DESCRIPTION
This vehicle uses a bolt-on type wheel cover (Fig.
30).
This bolt-on wheel cover cannot be removed from
the wheel until three of the five wheel mounting nuts
shown are removed (Fig. 30). The bolt-on wheel cover
can then be removed with the remaining two wheel
nuts tightened in place.
REMOVAL
(1) Noting the location of the valve stem in rela-
tionship to the wheel mounting nuts, remove the
three wheel mounting nuts securing the wheel cover
to the wheel and hub (Fig. 30).
CAUTION: When removing the wheel cover, do not
pry the wheel cover from the wheel. This can resultin damage to the wheel cover. The wheel cover is
removed by pulling it off the wheel by hand.
(2) Grasp the wheel cover at the edges in line with
the remaining installed wheel nuts and pull straight
outward from the wheel. This will pop the wheel
cover retaining tabs over the two remaining wheel
nuts, removing the wheel cover from the wheel.
INSTALLATION
NOTE: Wheel mounting nuts must be installed on
the studs as shown to allow installation of the
wheel cover (Fig. 31).
Fig. 30 Nuts Securing Wheel Cover
1 - VALVE STEM
2 - BOLT-ON WHEEL COVER
3 - NUTS SECURING WHEEL COVER
Fig. 31 Two Wheel Mounting Nuts Installed
1 - WHEEL
2 - VALVE STEM
3 - HUB PILOT
4 - NUTS
RSTIRES/WHEELS22-19
WHEELS (Continued)
Page 2099 of 2585

(1) Place the wheel cover on the wheel in the fol-
lowing fashion:
(a) Align the valve notch in the wheel cover with
the valve stem on the wheel.
(b) At the same time, align the two holes in the
wheel cover having the retaining tabs with the two
installed wheel nuts (Fig. 32).
(c) Press in on center of wheel cover until wheel
cover retaining tabs push past and engage rear of
previously installed wheel mounting nuts (Fig. 32).
This will hold the wheel cover in place.
(2) Install andlightly tightenthe three remain-
ing wheel mounting nuts, securing the wheel cover in
place (Fig. 30).
(3) Tighten all five wheel mounting nuts in the
proper sequence (Fig. 33). Tighten wheel nuts to a
torque of 135 N´m (100 ft. lbs.).WHEEL MOUNTING STUDS -
FRONT
REMOVAL
CAUTION: If a wheel mounting stud needs to be
replaced in the hub and bearing assembly, the
studs MUST NOT be hammered out of the hub
flange. If a stud is removed by hammering it out of
the bearing flange, damage to the hub and bearing
assembly will occur leading to premature bearing
failure.
(1) Raise vehicle on jackstands or centered on a
frame contact type hoist. See Hoisting in Lubrication
and Maintenance.
(2) Remove the front wheel and tire assembly from
the vehicle.
(3) Remove the two adapter mounting bolts secur-
ing both the disc brake caliper adapter to the steer-
ing knuckle (Fig. 34).
(4) Remove the disc brake caliper and adapter as
an assembly from the steering knuckle (Fig. 34).
Hang the assembly out of the way using wire or a
bungee cord. Use care not to overextend the brake
hose when doing this.
(5) Remove brake rotor from hub by pulling it
straight off wheel mounting studs (Fig. 34).
(6) On the wheel mounting stud to be removed,
install a wheel mounting (lug) nut far enough so the
threads on the stud are even with end of nut. Install
Fig. 32 Wheel Cover Installation Over Two Nuts
1 - RETAINING TABS
2 - VALVE STEM
3 - BOLT-ON WHEEL COVER
Fig. 33 Nut Tightening Sequence
Fig. 34 Front Brake Mounting
1 - BRAKE ROTOR
2 - HUB AND BEARING
3 - STEERING KNUCKLE
4 - ADAPTER MOUNTING BOLTS
5 - BRAKE CALIPER
6 - ADAPTER
7 - CLIP
22 - 20 TIRES/WHEELSRS
WHEEL COVER (Continued)
Page 2100 of 2585

Remover, Special Tool C-4150A on hub and bearing
assembly flange and wheel stud (Fig. 35).
(7) Tighten down on special tool, pushing wheel
stud out of the hub flange. When shoulder of wheel
stud is past flange, remove special tool from hub and
bearing. Remove nut from stud and remove stud
from hub flange.
INSTALLATION
(1) Install replacement wheel stud into flange of
hub and bearing assembly. Install washers on wheel
stud, then install a wheel mounting (lug) nut on stud
with flat side of lug nut against washers as shown
(Fig. 36).
(2) Tighten the nut, pulling the wheel stud into
the flange of the hub and bearing. When the head of
the stud is fully seated against the rear of the hub
flange, remove nut and washers from stud.
(3) Install the brake rotor back on the hub and
bearing (Fig. 34).
(4) Install brake caliper and adapter back over
brake rotor aligning adapter with mounting holes on
steering knuckle (Fig. 34).
(5) Install the two adapter mounting bolts securing
the adapter to the steering knuckle. Tighten the
mounting bolts to 169 N´m (125 ft. lbs.) torque.
(6) Install wheel and tire assembly on vehicle.
Tighten the wheel mounting lug nuts in proper
sequence until all nuts are torqued to half specifica-
tion, then repeat the tightening sequence to the full
specified torque of 135 N´m (100 ft. lbs.).
(7) Lower vehicle to the ground.
WHEEL MOUNTING STUDS -
REAR
REMOVAL
CAUTION: If a wheel attaching stud needs to be
replaced in the hub and bearing assembly the studs
MUST NOT be hammered out of the hub flange. If a
stud is removed by hammering it out of the bearing
flange, damage to the hub and bearing assembly
will occur leading to premature hub and bearing
failure.
(1) Raise vehicle on jackstands or centered on a
frame contact type hoist. See Hoisting in Lubrication
and Maintenance.
(2) Remove the rear wheel and tire assembly.
(3) Remove the brake drum or disc brake caliper
and rotor. Refer to Brakes.
(4) Install a lug nut on the wheel stud to be
removed from the hub and bearing assembly (Fig. 37)
so the threads on stud are even with end of lug nut.
Install Remover, Special Tool C-4150A on hub and
bearing assembly flange and wheel stud (Fig. 37).
(5) Tightening down on special tool will push
wheel stud out of the hub and bearing assembly
flange.
(6) Remove lug nut from stud and remove wheel
stud from flange.
Fig. 35 Wheel Stud Removal (Typical)
1 - WHEEL MOUNTING (LUG) NUT
2 - HUB AND BEARING ASSEMBLY
3 - SPECIAL TOOL C-4150A
4 - STEERING KNUCKLE
5 - WHEEL STUD
Fig. 36 Installing Wheel Stud (Typical)
1 - WASHERS
2 - HUB AND BEARING ASSEMBLY
3 - WHEEL MOUNTING (LUG) NUT
4 - STEERING KNUCKLE
RSTIRES/WHEELS22-21
WHEEL MOUNTING STUDS - FRONT (Continued)
Page 2101 of 2585

INSTALLATION
(1) Install replacement wheel stud into flange of
hub and bearing assembly. Install washers on wheel
stud, then install a wheel lug nut on stud with flat
side of lug nut against washers (Fig. 38).
(2) Tighten the wheel lug nut, pulling the wheel
stud into the flange of the hub and bearing assembly.
When the head of the stud is fully seated against the
bearing flange, remove lug nut and washers from
wheel stud.(3) Install the brake drum or disc brake rotor and
caliper on the hub and bearing assembly.
(4) Install wheel and tire assembly on vehicle.
Tighten the wheel mounting stud nuts in proper
sequence until all nuts are torqued to half specifica-
tion. Then repeat the tightening sequence to the full
specified torque of 135 N´m (100 ft. lbs.).
(5) Lower vehicle to the ground.
Fig. 37 Wheel Stud Removal From Hub And Bearing
1 - HUB AND BEARING ASSEMBLY
2 - WHEEL MOUNTING (LUG) NUT
3 - WHEEL STUD
4 - SPECIAL TOOL C-4150A
Fig. 38 Wheel Stud Installation
1 - WHEEL MOUNTING (LUG) NUT
2 - HUB AND BEARING ASSEMBLY
3 - WASHERS
4 - WHEEL STUD
22 - 22 TIRES/WHEELSRS
WHEEL MOUNTING STUDS - REAR (Continued)
Page 2102 of 2585

TIRES/WHEELS
TABLE OF CONTENTS
page page
TIRE PRESSURE MONITORING............... 1TIRES................................... 5
TIRE PRESSURE MONITORING
TABLE OF CONTENTS
page page
TIRE PRESSURE MONITORING DESCRIPTION ..........................1
OPERATION ............................1
SENSOR - TPM DESCRIPTION ..........................1
OPERATION ............................2
CAUTION ..............................2 DIAGNOSIS AND TESTING - TIRE PRESSURE
SENSOR .............................2
STANDARD PROCEDURE - TIRE PRESSURE SENSOR RETRAIN .....................2
REMOVAL .............................2
INSTALLATION ..........................3
TIRE PRESSURE MONITORING
DESCRIPTION
Some versions of this vehicle are equipped with a
Tire Pressure Monitoring (TPM) system. It monitors
air pressure in the four road tires. Pressure in the
spare tire is not monitored. There is a sensor (transmitter) in each of the vehi-
cle's four road wheels that is built in to the valve
stem. The system alerts the driver when tire pres-
sure falls outside predetermined thresholds (pressure
too low or too high). A message is then displayed on
the Compass Mini Trip Computer (CMTC). For further information, refer to the Owners Man-
ual or the appropriate diagnostic information.
OPERATION
The Tire Pressure Monitoring (TPM) system uses
radio and sensor technology to monitor tire air pres-
sure levels. Sensors, mounted to each road wheel as
part of the valve stem, transmit an RF frequency
indicating their individual pressure to a receiver
located in the Sentry Key Remote Entry Module
(SKREEM). These transmissions occur approximately
once every minute at speeds over 13 mph (20 km/h).
The Tire Pressure Monitoring system remains active
even if no tire pressure related message is displayed.
SENSOR - TPM
DESCRIPTION
On vehicles equipped with Tire Pressure Monitor-
ing, one tire pressure sensor is mounted to each
wheel (Fig. 2). Each sensor has an internal battery
that lasts up to 10 years. The battery is not service-
able. At the time of battery failure, the sensor must
be replaced. The serviceable components of the tire
pressure sensor are: ² Sensor-To-Wheel Grommet
² Valve Stem Cap
² Valve Stem Core
Valve stem caps and cores are specifically designed
for the tire pressure monitoring sensors. Although
similar to standard valve stem caps and cores, they
are different.
CAUTION: Do not use a standard valve stem cap or
core in a tire pressure sensor. Always use the orig-
inal equipment style sensor cap and core.
CAUTION: Do not reuse the Sensor-To Wheel Grom-
met. Always use a new grommet when installing a
pressure sensor and properly torque the sensor
nut.
RS TIRES/WHEELS22s-1
Page 2103 of 2585

CAUTION: Do not try to install a tire pressure sen-
sor in a steel wheel or aftermarket wheel. Use only
in original style factory wheels.
OPERATION
The tire pressure sensors are battery operated.
Each sensor transmits tire pressure data approxi-
mately once every minute at speeds above 13 mph
(20 km/h). Each sensor's (transmitter) broadcast is
uniquely coded so that the SKREEM can monitor the
states of each individual sensor on the vehicle.
Unlike prior model year TPM systems, a magnet is
not required to retrain the system. The SKREEM
automatically learns while driving after a sensor has
been replaced. (Refer to 22 - TIRES/WHEELS/TIRE
PRESSURE MONITORING/SENSOR - STANDARD
PROCEDURE) For additional information, refer to Appropriate
Diagnostic Information.
CAUTION
CAUTION: The use of tire sealants is strictly prohib-
ited for vehicles equipped with the Tire Pressure
Monitoring system. Tire sealants can clog tire pres-
sure sensors.
CAUTION: Tire pressure sensor valve stem caps
and cores are specially designed for the sensors.
Due to risk of corrosion, do not use a standard
valve stem cap or core in a tire pressure sensor in
place of the original equipment style sensor cap
and core.
CAUTION: Do not attempt to install a tire pressure
sensor in a steel wheel or aftermarket wheel. Use
tire pressure sensors in original style factory
wheels only.
NOTE: TPM thresholds have been established for
the original tire size equipped on the vehicle. Use
original size tires only to maintain system accuracy.
DIAGNOSIS AND TESTING - TIRE PRESSURE
SENSOR
NOTE: Tire pressure may increase from 2 to 6 psi
(14 to 41 kPa) during normal driving conditions. Do
NOT reduce this normal pressure build up.
If a fault in the system is detected, always check
air pressure in the tires first with a known accurate
air gauge and correct the inflation pressure. If any
tire is low, inspect allthe tires. If the gauge-read pressure in the tires does not
indicate a tire pressure issue, refer to the appropri-
ate diagnostic information.
STANDARD PROCEDURE - TIRE PRESSURE
SENSOR RETRAIN
CAUTION: If a sensor is replaced, the vehicle must
be parked for a minimum of 15 minutes for the sys-
tem to be ready to learn the new sensor ID code.
(1) Park the car for a minimum of 15 minutes.
(2) Drive the vehicle for a minimum of five min-
utes while maintaining a continuous speed above 13
mph (20 km/h). During this time the system will
learn the new sensor ID code and will clear any
DTC's automatically.
NOTE: If a sensor cannot be trained, refer to appro-
priate diagnostic information.
REMOVAL
(1) Remove tire and wheel assembly from vehicle.
(Refer to 22 - TIRES/WHEELS - REMOVAL)
CAUTION: The cap used on this valve stem con-
tains an O-ring seal to prevent contamination and
moisture from entering the valve stem. Retain this
valve stem cap for reuse. Do not substitute a regu-
lar valve stem cap in its place.
CAUTION: The valve stem used on this vehicle is
made of aluminum and the core is nickel plated
brass. The original valve stem core must be rein-
stalled and not substituted with a valve stem core
made of a different material. This is required to pre-
vent corrosion in the valve stem caused by the dif-
ferent metals.
(2) Dismount tire from wheel following tire
changer manufacturers instructions while paying
special attention to the following to avoid damaging
the pressure sensor: (a) When breaking the tire bead loose from the
wheel rim, avoid using the Bead Breaker in the
area of the sensor. That includes both front and
rear beads of the tire. (b) When preparing to dismount the tire from
the wheel, carefully insert the mounting/dimount-
ing tool at the valve stem 10É (Fig. 1), then pro-
ceed to dismount the tire from the wheel. Use this
process on both the upper and lower tire beads.
(3) Using a thin wall socket, remove special nut
retaining sensor to wheel (Fig. 2). (4) Remove sensor from wheel (Fig. 2).
22s - 2 TIRE PRESSURE MONITORINGRS
SENSOR - TPM (Continued)
Page 2104 of 2585

INSTALLATION
NOTE: Before reinstalling a tire pressure sensor,
replace sealing grommet at base of valve stem.(1) Wipe area clean where sensor sealing grommet
contacts wheel. Make sure surface of wheel is not
damaged. (2) Install sensor in wheel as shown (Fig. 2). Do
not attempt to mount sensor otherwise, damage may
occur. (3) Using a thin wall socket, install special sensor
nut (Fig. 2). Tighten nut to 4 N´m (35 in. lbs.) torque.
CAUTION: Over-torquing the sensor nut by as little
as 12 N´m (106 in. lbs.) may result in sensor sepa-
ration from the valve stem. Under this condition,
the sensor may still function, however, the condi-
tion should be corrected immediately.
(4) Mount tire on wheel following tire changer
manufacturers instructions, paying special attention
to the following to avoid damaging tire pressure sen-
sor: (a) Rotating Wheel Tire Changers - Once the
wheel is mounted to the changer, position the sen-
sor valve stem approximately 210É from the head
of the changer in a clockwise direction before rotat-
ing the wheel (also in a clockwise direction) to
mount the tire (Fig. 3). Use this procedure on both
the upper and lower tire beads. (b) Rotating Tool Tire Changers - Position the
wheel on the changer so that the sensor valve stem
is approximately 210É from the head of the changer
in a clockwise direction from the mounting end of
the tool (Fig. 4) Make sure the sensor is clear of
the lower bead breaker area to avoid damaging the
sensor when the breaker rises (Fig. 4). Rotate the
tool in a counterclockwise direction to mount the
tire. Use this procedure on both the upper and
lower tire beads.
Fig. 1 Start Mount/Dismount Tool Within 10 Degrees Of Valve Stem
Fig. 2 Sensor Mounting To Wheel
1 - TIRE PRESSURE SENSOR
2 - WHEEL
3 - NUT
Fig. 3 Mounting Tire Using Rotating Wheel Machine
1 - HEAD OF CHANGER LOCATED HERE
2 - VALVE STEM
RS TIRE PRESSURE MONITORING22s-3
SENSOR - TPM (Continued)