Page 488 of 652

The “Tire Pressure Monitoring Telltale Light” will flash
on and off for 75 seconds, and remain on solid when a
system fault is detected. The system fault will also sound
a chime. If the ignition switch is cycled, this sequence will
repeat, providing the system fault still exists. The “Tire
Pressure Monitoring Telltale Light” will turn off when
the fault condition no longer exists. A system fault can
occur with any of the following scenarios:
1. Jamming due to electronic devices or driving next to
facilities emitting the same radio frequencies as the TPMS
sensors.
2. Installing some form of aftermarket window tinting
that affects radio wave signals.
3. Accumulation of excessive snow and/or ice around
the wheels or wheel housings.
4. Using tire chains on the vehicle.
5. Using wheels/tires not equipped with TPMS sensors.Vehicles With Compact Spare
1. The compact spare tire (if equipped) does not have a
TPMS sensor. Therefore the TPMS will not monitor the
pressure in the compact spare tire.
2. If you install the compact spare tire in place of a road
tire that has a pressure below the low-pressure warning
limit, upon the next ignition switch cycle, a chime will
sound, a “LOW TIRE PRESSURE” message will be
displayed and the “Tire Pressure Monitoring Telltale
Light” will turn on.
3. After driving for up to 20 minutes above 15 mph
(24 km/h), the “Tire Pressure Monitoring Telltale Light”
will flash on and off for 75 seconds and then remain on
solid.
4. For each subsequent ignition switch cycle, a chime will
sound, the “Tire Pressure Monitoring Telltale Light” will
flash on and off for 75 seconds and then remain on solid.
486 STARTING AND OPERATING
Page 489 of 652

5. Once you repair or replace the original road tire and
reinstall it on the vehicle in place of the compact spare
tire, the TPMS will automatically update, and the “Tire
Pressure Monitoring Telltale Light” will turn off as long
as no tire pressure is below the low-pressure warning
limit in any of the four active road tires.
NOTE:The vehicle may need to be driven for up to
20 minutes above 15 mph (24 km/h) for the TPMS to
receive this information.
Premium System – If Equipped
The TPMS uses wireless technology with wheel rim-
mounted electronic sensors to monitor tire pressure lev-
els. Sensors mounted to each wheel as part of the valve
stem transmit tire pressure readings to the Receiver
Module.
NOTE: It is particularly important to regularly check
and maintain proper tire pressure in all the tires. The Premium TPMS consists of the following compo-
nents:
•Receiver Module
•Four TPMS Sensors
•Various TPMS messages, which display in the Elec-
tronic Vehicle Information Center (EVIC), and graph-
ics displaying tire pressures
•TPMS Telltale Warning Light
TPMS Low Pressure Warnings
The “Tire Pressure Monitoring Telltale Light” will illumi-
nate in the instrument cluster, and an audible chime will
be activated when one or more of the four active road tire
pressures are low. In addition, the EVIC will display a
“LOW TIRE PRESSURE” message for a minimum of five
seconds and a graphic display of the pressure value(s)
with the low tire(s) flashing.
5
STARTING AND OPERATING 487
Page 491 of 652

4. Using tire chains on the vehicle.
5. Using wheels/tires not equipped with TPMS sensors.
The EVIC will also display a “SERVICE TPM SYSTEM”
message for a minimum of five seconds when a system
fault possibly related to an incorrect sensor location fault
is present. In this case, the “SERVICE TPM SYSTEM”
message is then followed by a graphic display with
pressure values still shown. This indicates that the pres-
sure values are still being received from the TPM sensors
but they may not be in the correct vehicle position. The
system still needs to be serviced as long as the “SERVICE
TPM SYSTEM” message exists.Vehicles With Compact Spare
1. The compact spare tire (if equipped) does not have a
TPMS. Therefore, the TPMS will not monitor the pressure
in the compact spare tire.
2. If you install the compact spare tire in place of a road
tire that has a pressure below the low-pressure warning
limit, upon the next ignition switch cycle, the “Tire
Pressure Monitoring Telltale Light” will remain on, the
“LOW TIRE PRESSURE” message will be displayed, a
chime will sound, and the EVIC will still display a
flashing pressure value in the graphic display.
3. After driving the vehicle for up to 20 minutes above
15 mph (24 km/h), the “Tire Pressure Monitoring Telltale
Light” will flash on and off for 75 seconds and then
remain on solid. In addition, the EVIC will display a
“SERVICE TPM SYSTEM” message for a minimum of
five seconds and then display dashes (- -) in place of the
pressure value.
5
STARTING AND OPERATING 489
Page 492 of 652

4. For each subsequent ignition switch cycle, a chime will
sound, the “Tire Pressure Monitoring Telltale Light” will
flash on and off for 75 seconds and then remain on solid,
and the EVIC will display a “SERVICE TPM SYSTEM”
message for a minimum of five seconds and then display
dashes (- -) in place of the pressure value.
5. Once you repair or replace the original road tire, and
reinstall it on the vehicle in place of the compact spare,
the TPMS will update automatically. In addition, the
“Tire Pressure Monitoring Telltale Light” will turn off
and the graphic in the EVIC will display a new pressure
value instead of dashes (- -), as long no tire pressure is
below the low pressure warning limit in any of the four
active road tires.
NOTE:The vehicle may need to be driven for up to
20 minutes above 15 mph (24 km/h) in order for the
TPMS to receive this information.General Information
This device complies with Part 15 of the FCC rules and
RSS 210 of Industry Canada. Operation is subject to the
following conditions:
•This device may not cause harmful interference.
•This device must accept any interference received,
including interference that may cause undesired
operation.
The tire pressure sensors are regulated under one of the
following licenses:
United States ................... MRXC4W4MA4
Canada ..................... 2546A-C4W4MA4
490 STARTING AND OPERATING
Page 496 of 652

CAUTION! (Continued)
•An out-of-tune engine or certain fuel or ignition
malfunctions can cause the catalytic converter to
overheat. If you notice a pungent burning odor or
some light smoke, your engine may be out of tune
or malfunctioning and may require immediate
service. Contact your authorized dealer for service
assistance.
•The use of fuel additives, which are now being
sold as octane enhancers, is not recommended.
Most of these products contain high concentra-
tions of methanol. Fuel system damage or vehicle
performance problems resulting from the use of
such fuels or additives is not the responsibility of
the manufacturer.
NOTE: Intentional tampering with the emissions con-
trol system can result in civil penalties being assessed
against you.
Carbon Monoxide Warnings
WARNING!
Carbon monoxide (CO) in exhaust gases is deadly.
Follow the precautions below to prevent carbon
monoxide poisoning:
•Do not inhale exhaust gases. They contain carbon
monoxide, a colorless and odorless gas, which can
kill. Never run the engine in a closed area, such as
a garage, and never sit in a parked vehicle with the
engine running for an extended period. If the
vehicle is stopped in an open area with the engine
running for more than a short period, adjust the
ventilation system to force fresh, outside air into
the vehicle.
(Continued)
494 STARTING AND OPERATING
Page 516 of 652

CAUTION!
If the trailer weighs more than 1,000 lbs (454 kg)
loaded, it should have its own brakes and they
should be of adequate capacity. Failure to do this
could lead to accelerated brake lining wear, higher
brake pedal effort, and longer stopping distances.
WARNING!
•Do not connect trailer brakes to your vehicle’s
hydraulic brake lines. It can overload your brake
system and cause it to fail. You might not have
brakes when you need them and could have a
collision.(Continued)
WARNING! (Continued)
•Towing any trailer will increase your stopping
distance. When towing you should allow for addi-
tional space between your vehicle and the vehicle
in front of you. Failure to do so could result in an
collision.
Towing Requirements – Trailer Lights And Wiring
Whenever you pull a trailer, regardless of the trailer size,
stop lights and turn signals on the trailer are required for
motoring safety.
The Trailer Tow Package may include a four-pin or a
seven-pin wiring harness. Use a factory approved trailer
harness and connector.
NOTE:Do not cut or splice wiring into the vehicles
wiring harness.
514 STARTING AND OPERATING
Page 536 of 652

WARNING!
Being under a jacked-up vehicle is dangerous. The
vehicle could slip off the jack and fall on you. You
could be crushed. Never get any part of your body
under a vehicle that is on a jack. If you need to get
under a raised vehicle, take it to a service center
where it can be raised on a lift.
3. Place the wrench on the jack screw and turn to the
right until the jack head is properly engaged in the
described location. Do not raise the vehicle until you are
sure the jack is securely engaged.
4. Raise the vehicle by turning the jack screw to the right,
using the swivel wrench. Raise the vehicle only until the
tire just clears the surface and enough clearance is
obtained to install the spare tire. Minimum tire lift
provides maximum stability.
WARNING!
Raising the vehicle higher than necessary can make
the vehicle less stable. It could slip off the jack and
hurt someone near it. Raise the vehicle only enough
to remove the tire.
5. Remove the wheel lug nuts, for vehicles with wheel
covers, remove the cover from the wheel by hand. Do not
pry the wheel cover off. Then pull the wheel off the hub.
6. Install the compact spare tire. Lightly tighten the lug
nuts.
CAUTION!
Be sure to mount the spare tire with the valve stem
facing outward. The vehicle could be damaged if the
spare tire is mounted incorrectly.
534 WHAT TO DO IN EMERGENCIES
Page 540 of 652

WARNING!
Verify that both retainer tabs of the wheel spacer
have been properly extended through the center of
the wheel and spare tire/cover assembly. Failure to
properly engage both retainer tabs could result in
loss of the spare tire and cover assembly, which will
cause vehicle damage and may cause loss of vehicle
control.
4. Using the winch T-handle, rotate the drive nut to the
right until the compact spare tire/cover assembly is
drawn into place against the underside of the vehicle.
5. Continue to rotate the nut to the right until you hear
the winch mechanism click three times. It cannot be
overtightened. Check under the vehicle to ensure the
compact spare tire/cover assembly is positioned cor-
rectly against the underside of the vehicle.
CAUTION!
The winch mechanism is designed specifically to
stow a compact spare tire only. Do not attempt to use
the winch to stow the full size flat tire, or any other
full-size tire. Vehicle damage may result.
Road Tire Installation
Vehicles Equipped With Wheel Covers
1. Mount the road tire on the axle.
2. To ease the installation process for steel wheels with
wheel covers, install two lug nuts on the mounting studs
which are on each side of the valve stem. Install the lug
nuts with the cone shaped end of the nut toward the
wheel. Lightly tighten the lug nuts.
538 WHAT TO DO IN EMERGENCIES