Chrysler 300M, Dodge Interpid. Manual — part 339
INSTALLATION - TIRE AND WHEEL ASSEMBLY
(STEEL WHEEL)
NOTE: Never use oil or grease on studs or wheel
mounting nuts.
(1) Position the tire and wheel assembly on the
wheel mounting studs using the hub pilot as a guide.
Place and hold the wheel flush up against the mount-
ing surface.
NOTE: Wheel mounting nuts must be installed on
the studs as shown (Fig. 14) to allow proper instal-
lation of the wheel cover.
(2) Using the valve stem as an index placed at the
12 O’clock position, install and lightly tighten two
wheel mounting nuts on the studs located at the 2
O’clock and 10 O’clock positions as shown (Fig. 14).
(3) 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. 15).
(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. 15).
This will hold the wheel cover in place.
(4) Install and lightly tighten the three remain-
ing wheel mounting nuts, securing the wheel cover in
place (Fig. 12).
(5) Progressively tighten all five wheel mounting
nuts in the proper sequence (Fig. 16). Tighten wheel
nuts to a torque of 135 N·m (100 ft. lbs.).
(6) Lower the vehicle.
Fig. 13 Tightening Sequence
Fig. 14 Two Wheel Mounting Nuts Installed
1 - VALVE STEM
2 - NUTS
3 - HUB
4 - WHEEL
Fig. 15 Wheel Cover Installation Over Two Nuts
1 - RETAINING TABS
2 - VALVE STEM
3 - WHEEL COVER
LH
TIRES/WHEELS
22 - 9
TIRES/WHEELS (Continued)
TIRE PRESSURE MONITORING
(TPM)
DESCRIPTION
Some versions of this vehicle are equipped with a
Tire Pressure Monitoring (TPM) system. It monitors
air pressure in all five tires (includes full-size
spare).
There is a sensor (transmitter) in each of the vehi-
cle’s five wheels. The system alerts the driver when
tire pressure falls outside predetermined thresholds
(pressure too low or too high). A message is then dis-
played on the Electronic Vehicle Information Center
(EVIC) located in the overhead console. Tire air pres-
sures in the four road wheels are displayed on the
EVIC when chosen. Pressure in the spare tire,
although monitored, is not displayed on the EVIC.
For further information, refer to the Owners Man-
ual or the appropriate diagnostic information.
OPERATION
The Tire Pressure Monitoring (TPM) system uses
wireless technology to monitor tire air pressure lev-
els. Sensors, mounted to each road wheel as part of
the valve stem, transmit tire pressure readings to a
receiver located in the overhead console. These trans-
missions occur once every minute at speeds over 20
mph (32 km/h). The tire pressure status is shown on
the Electronic Vehicle Information Center (EVIC) dis-
play upon demand. The Tire Pressure Monitoring
system remains active even if it is not displayed in
the EVIC.
If any road tire pressure has exceeded the low or
high pressure threshold (refer to chart below), the
TPM system will display a message on the EVIC and
sound a chime. It will then go into the tire pressure
display screen and flash the pressure value of the
tire that is low or high. This will be displayed for the
rest of the ignition cycle, or until either the C/T,
MENU, STEP or RESET button is pressed.
If a road tire is replaced by the spare, the TPM
system will detect the swap automatically (after the
ignition has been cycled) and display
9SPARE SWAP
DETECTED
9 along with a chime (This could take up
to 10 minutes with the vehicle speed above 20 mph
(32 km/h).
For further information, refer to the Owners Man-
ual or the Appropriate Diagnostic Information.
NOTE: TPM thresholds have been established for
the original tire size equipped on the vehicle.
TPM THRESHOLD PRESSURES
DESCRIPTION
300M
300M
SPECIAL
High Pressure Threshold
45 PSI
(310 kPa)
45 PSI
(310 kPa)
Placard Pressure (Cold)
30 PSI
(207 kPa)
32 PSI
(221 kPa)
Low Pressure Threshold
24 PSI
(165 kPa)
26 PSI
(179 kPa)
WARNING
WARNING: DO NOT USE THE EVIC DISPLAY TO
MONITOR
AIR
PRESSURE
CHANGES
WHILE
ADJUSTING AIR PRESSURE IN THE TIRES. THE
TPM SYSTEM CANNOT BE EXPECTED TO FUNC-
TION AS A REAL TIME TIRE PRESSURE GAUGE.
THERE CAN BE A DELAY BETWEEN THE INSTANT
THE AIR PRESSURE IS ADJUSTED IN A TIRE AND
WHEN THE SYSTEM UPDATES THE DISPLAY.
CAUTION
CAUTION: TPM thresholds have been established
for the original tire size equipped on the vehicle.
Use original size tires only to maintain system
accuracy.
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.
Fig. 16 Tightening Sequence
22 - 10
TIRES/WHEELS
LH
TIRES/WHEELS (Continued)
SENSOR - TPM
DESCRIPTION
On vehicles equipped with Tire Pressure Monitor-
ing, one tire pressure sensor is mounted to each
wheel (including spare) (Fig. 19). Each sensor has an
internal battery that lasts up to 10 years. The bat-
tery is not serviceable. At the time of battery failure,
the sensor must be replaced. The serviceable compo-
nents of the tire pressure sensor are:
• Sensor-To-Wheel Grommet
• Valve Stem Cap
• 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 try to install a tire pressure sen-
sor in a steel wheel or aftermarket wheel. Use only
in original style factory wheels.
OPERATION
Tire pressure sensors are battery operated. They
transmit tire pressure data once every minute at
speeds above 20 mph (32 km/h) or up to once every
hour when stationary (parked). For additional infor-
mation, 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.
CAUTION: Do not reuse the original Sensor-To-
Wheel Grommet when installing a pressure sensor.
Always use a new grommet and properly torque the
sensor nut to specifications. (Refer to 22 - TIRES/
WHEELS/TIRE PRESSURE MONITORING/SENSOR -
INSTALLATION)
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 as neces-
sary. If any tire is low, inspect all tires.
NOTE: If a tire and wheel rotation is not followed by
the retrain procedure, the system will not properly
inform the driver with the correct vehicle location
for a low or high pressure tire. (Refer to 22 - TIRES/
WHEELS/TIRE PRESSURE MONITORING/SENSOR -
STANDARD PROCEDURE)
If gauge-read pressure in the tires does not reflect
the data on the EVIC, retrain the sensors, then
reevaluate (Refer to 22 - TIRES/WHEELS/TIRE
PRESSURE MONITORING/SENSOR - STANDARD
PROCEDURE). If the gauge-read readings at each
tire still do not reflect the EVIC data, check the accu-
racy of the air gauge (What is the accuracy tolerance
of the gauge being used?). If the gauge used is known
to be accurate and one or more gauge readings still
do not reflect the EVIC readings, but the remaining
gauge readings do, replace the pressure sensor(s) at
the suspect wheels. (Refer to 22 - TIRES/WHEELS/
TIRE
PRESSURE
MONITORING/SENSOR
-
REMOVAL)
Refer to the appropriate diagnostic information for
complete diagnosis of the Tire Pressure Monitoring
System.
STANDARD PROCEDURE - TIRE PRESSURE
SENSOR RETRAIN
WARNING:
DEATH
OR
SERIOUS
INJURY
CAN
OCCUR IF MAGNETICALLY SENSITIVE DEVICES
ARE EXPOSED TO THE RELEARN MAGNET. MAG-
NETS CAN AFFECT PACEMAKERS.
LH
TIRES/WHEELS
22 - 11
CAUTION: Never attempt to train more than one
vehicle at a time. System is capable of reading tire
pressure sensor transmissions from other nearby
vehicles while in train mode.
Each time a wheel rotation or tire pressure sensor
replacement occurs the tire pressure sensors must be
retrained. This is necessary to inform the Electronic
Vehicle Information Center (EVIC) that a sensor
change was made and the new locations of the sen-
sors. Retraining is accomplished through the EVIC
used in conjunction with a Re-learn Magnet, Special
Tool 8821.
NOTE: Use the following procedure to retrain all
five (5) tire pressure sensors. No attempt should be
made to retrain individual sensors.
(1) Open decklid and remove spare tire stowage
cover.
(2) Retrieve Re-learn Magnet, Special Tool 8821.
(3) Press MENU Button on EVIC until
9RETRAIN
TIRE SENSORS - NO
9 is displayed.
(4) Press STEP button to select
9YES9.
NOTE: There is a 60 second timer for training the
first sensor and a 30 second timer between training
the remaining sensors. If either of these timers
expire, the EVIC will abort the training procedure.
NOTE: If at any time the EVIC display reads
(
TRAIN-
ING ABORTED
(
, move the vehicle ahead at least
one foot and repeat the entire retraining procedure.
(5) Press MENU button to start retraining. Dis-
play will read
9TRAIN LEFT FRONT TIRE9
NOTE: The order for retraining all five sensors is:
•
Left Front
•
Right Front
•
Right Rear
•
Left Rear
•
Spare
(6) Starting at left front tire, place Re-learn Mag-
net over valve stem (Fig. 17). Within approximately 5
seconds, vehicle horn will chirp indicating training
complete for that particular sensor. Remove the mag-
net.
(7) Repeat step (6) on remaining sensors as indi-
cated by EVIC until all five TPM sensors positions
are trained.
(8) Once EVIC displays
9TRAINING COMPLETE9,
pressing either STEP, C/T, RESET or MENU button
will exit training routine.
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 ± 10° (Fig. 18), 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. 19).
(4) Remove sensor from wheel (Fig. 19).
Fig. 17 Magnet Placement Over Valve Stem
1 - RE-LEARN MAGNET
2 - VALVE STEM
22 - 12
TIRES/WHEELS
LH
SENSOR - TPM (Continued)
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