2017 JEEP PATRIOT light

WARNING!
Many factors, such as vehicle loading, road conditions
and driving conditions, influence the chance that
wheel lift or rollover may occur. ERM cannot prevent
all wheel lift or roll overs, especially those that involve
leaving the roadway or striking objects or other ve-
hicles. The capabilities of an ERM-equipped vehicle
must never be exploited in a reckless or dangerous
manner which could jeopardize the user’s safety or the
safety of others.
Hill Descent Control (HDC) — If Equipped
This system maintains vehicle speed while descending hills
during off-road driving situations. HDC will automatically
apply the brakes to control downhill speed to between
4 mph (7 km/h) and 6 mph (9 km/h) depending on terrain.
The system is activated by placing the vehicle in “Off-
Road” mode and placing the gear selector in LOW or
REVERSE. Refer to “Off-Road Driving Tips” in “Starting
And Operating” for further information.When HDC is properly enabled, the “Hill Decent
Control Light” in the instrument cluster will be
illuminated. HDC has the capability to sense terrain and will only
activate when the vehicle is descending a hill. It will not
activate on level ground. If desired, HDC can be fully
deactivated by putting the vehicle into ESC “Full Off”
mode. This is done by pushing and holding the “ESC Off”
button for five seconds. Refer to “Electronic Stability
Control (ESC)” in this section of the manual.
HDC operation can be overridden with brake application
to slow the vehicle down below the HDC control speed.
Conversely, if more speed is desired during HDC control,
the accelerator pedal will increase vehicle speed like nor-
mal. When either the brake or the accelerator is released,
HDC will control the vehicle back to the original set speed.
HDC is only intended for low speed off-road driving. At
vehicle speeds above 31 mph (50 km/h), HDC will no
longer function. If the “HDC Indicator Light” begins to
flash, this indicates that the brakes are getting too hot and
the vehicle should be stopped to allow the brakes to cool.
WARNING!
HDC is only intended to assist the driver in controlling
vehicle speed when descending hills. The driver must
remain attentive to the driving conditions and is re-
sponsible for maintaining a safe vehicle speed.
5
SAFETY 139

AUXILIARY DRIVING SYSTEMS
Tire Pressure Monitoring System (TPMS)
The Tire Pressure Monitor System (TPMS) will warn the
driver of a low tire pressure based on the vehicle recom-
mended cold placard pressure.
The tire pressure will vary with temperature by about 1 psi
(7.0 kPa) for every 12°F (6.5°C). This means that when the
outside temperature decreases, the tire pressure will de-
crease. Tire pressure should always be set based on “cold
inflation tire pressure”. This is defined as the tire pressure
after the vehicle has not been driven for at least three
hours, or driven less than 1 mile (1.6 km) after a three hour
period. The cold tire inflation pressure must not exceed the
maximum inflation pressure molded into the tire sidewall.
Refer to “Tires – General Information” in “Servicing And
Maintenance” for information on how to properly inflate
the vehicle’s tires. The tire pressure will also increase as the
vehicle is driven - this is normal and there should be no
adjustment for this increased pressure.
The TPMS will warn the driver of a low tire pressure if the
tire pressure falls below the low-pressure warning limit for
any reason, including low temperature effects, or natural
pressure loss through the tire.The TPMS will continue to warn the driver of low tire
pressure as long as the condition exists, and will not turn
off until the tire pressure is at or above the recommended
cold placard pressure. Once the low tire pressure warning
(Tire Pressure Monitoring Telltale Light) illuminates, you
must increase the tire pressure to the recommended cold
placard pressure in order for the Tire Pressure Monitoring
Telltale Light to turn off. The system will automatically
update and the Tire Pressure Monitoring Telltale Light will
turn off once the system receives the updated tire pres-
sures.
NOTE:
When filling warm tires, the tire pressure may need
to be increased up to an additional 4 psi (30 kPa) above the
recommended cold placard pressure in order to turn the
Tire Pressure Monitoring Telltale Light off.
The vehicle may need to be driven for up to 10 minutes
above 15 mph (24 km/h) in order for the TPMS to receive
this information.
For example, your vehicle may have a recommended cold
(parked for more than three hours) placard pressure of 30
psi (207 kPa). If the ambient temperature is 68°F (20°C) and
the measured tire pressure is 27 psi (186 kPa), a tempera-
ture drop to 20°F (-7°C) will decrease the tire pressure to
140 SAFETY

approximately 23 psi (158 kPa). This tire pressure is suffi-
ciently low enough to turn ON the Tire Pressure Monitor-
ing Telltale Light. Driving the vehicle may cause the tire
pressure to rise to approximately 27 psi (186 kPa), but the
Tire Pressure Monitoring Telltale Light will still be ON. In
this situation, the Tire Pressure Monitoring Telltale Light
will turn OFF only after the tires are inflated to the
vehicle’s recommended cold placard pressure value.
NOTE:When filling warm tires, the tire pressure may need
to be increased up to an additional 4 psi (30 kPa) above the
recommended cold placard pressure in order to turn the
Tire Pressure Monitoring Telltale Light off.
CAUTION!
• The TPMS has been optimized for the original
equipment tires and wheels. TPMS pressures and
warning have been established for the tire size
equipped on your vehicle. Undesirable system op-
eration or sensor damage may result when using
replacement equipment that is not of the same size,
type, and/or style. Aftermarket wheels can cause
sensor damage.
(Continued)
CAUTION! (Continued)
•Using aftermarket tire sealants may cause the Tire
Pressure Monitoring System (TPMS) sensor to be-
come inoperable. After using an aftermarket tire
sealant it is recommended that you take your vehicle
to an authorized dealer to have your sensor function
checked.
• After inspecting or adjusting the tire pressure always
reinstall the valve stem cap. This will prevent mois-
ture and dirt from entering the valve stem, which
could damage the TPMS sensor.
NOTE:
• The TPMS is not intended to replace normal tire care and
maintenance or to provide warning of a tire failure or
condition.
• The TPMS should not be used as a tire pressure gauge
while adjusting your tire pressure.
• Driving on a significantly under-inflated tire causes the
tire to overheat and can lead to tire failure. Under-
inflation also reduces fuel efficiency and tire tread life,
and may affect the vehicle’s handling and stopping
ability.
5
SAFETY 141

•The TPMS is not a substitute for proper tire mainte-
nance, and it is the driver ’s responsibility to maintain
correct tire pressure using an accurate tire gauge, even if
under-inflation has not reached the level to trigger
illumination of the Tire Pressure Monitoring Telltale
Light.
• Seasonal temperature changes will affect tire pressure,
and the TPMS will monitor the actual tire pressure in the
tire.
Base System
This is the TPMS warning indicator located in the
instrument cluster.
The TPMS uses wireless technology with wheel rim
mounted electronic sensors to monitor tire pressure levels.
Sensors, mounted to each wheel as part of the valve stem,
transmit tire pressure readings to the Receiver Module.
NOTE: It is particularly important for you to check the tire
pressure in all of the tires on your vehicle regularly and to
maintain the proper pressure.
The TPMS consists of the following components:
• Receiver Module. •
Four Tire Pressure Monitoring Sensors.
• Tire Pressure Monitoring Telltale Light.
Tire Pressure Monitoring Low Pressure Warnings
The Tire Pressure Monitoring Telltale Light will illuminate
in the instrument cluster, a LOW TIRE message will be
displayed for a minimum of five seconds, and an audible
chime will be activated when one or more of the four active
road tire pressures are low. Should this occur, you should
stop as soon as possible, check the inflation pressure of
each tire on your vehicle, and inflate each tire to the
vehicle’s recommended cold placard pressure value. The
system will automatically update and the Tire Pressure
Monitoring Light will extinguish and the LOW TIRE
message will turn off once the updated tire pressures have
been received.
NOTE: When filling warm tires, the tire pressure may need
to be increased up to an additional 4 psi (30 kPa) above the
recommended cold placard pressure in order to turn the
Tire Pressure Monitoring Telltale Light off.
The vehicle may need to be driven for up to 10 minutes
above 15 mph (24 km/h) to receive this information.
142 SAFETY

Check TPMS Warnings
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 key 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 tofacilities emitting the same radio frequencies as the TPM
sensors.
2. Installing some form of aftermarket window tinting that affects radio wave signals.
3. Snow or ice around the wheels or wheel housings.
4. Using tire chains on the vehicle.
5. Using wheels/tires not equipped with TPM sensors.
NOTE: Your vehicle is equipped with a compact spare
wheel and tire assembly.
1. The compact spare tire does not have a tire pressure monitoring sensor. Therefore, the TPMS will not moni-
tor the tire 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 key cycle, a chime will
sound and the Tire Pressure Monitoring Telltale Light
and LOW TIRE message will still turn ON due to the
low tire.
3. However, after driving the vehicle for up to 10 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 key cycle, a chime will sound and the Tire Pressure Monitoring Telltale Light
will flash on and off for 75 seconds and then remain on
solid.
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 update automatically 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. The vehicle may
need to be driven for up to 10 minutes above 15 mph
(24 km/h) in order for the TPMS to receive this infor-
mation.
5
SAFETY 143

Premium System — If Equipped
The TPMS uses wireless technology with wheel rim
mounted electronic sensors to monitor tire pressure levels.
Sensors, mounted to each wheel as part of the valve stem,
transmit tire pressure readings to the receiver module.
NOTE:It is particularly important for you to check the tire
pressure in all of your tires regularly and to maintain the
proper pressure.
The TPMS consists of the following components:
• Receiver Module
• Four Tire Pressure Monitoring Sensors
• Three Trigger Modules (mounted in three of the four
wheel wells)
• Various Tire Pressure Monitoring System Messages,
which display in the instrument cluster
• Tire Pressure Monitoring Telltale Light
Tire Pressure Monitoring Low Pressure Warnings
The Tire Pressure Monitoring Telltale Light will illuminate
in the instrument cluster and an audible chime will be
activated when one or more of the four active road tire
pressures are low. The audible chime will sound once every ignition cycle for the first condition that it detects. In
addition, the instrument cluster will display a “LOW
TIRE” text message for a minimum of five seconds and a
graphic of the pressure value(s) with the low tire(s) flash-
ing.
Should a low tire condition occur on any of the four active
road tire(s), you should stop as soon as possible and inflate
all tires that are flashing on the graphic display to the
vehicle’s recommended cold placard pressure value. The
system will automatically update, the “LOW TIRE” text
message will no longer be displayed, the graphic display of
Tire Pressure Monitoring Display
144 SAFETY

the pressure value(s) will stop flashing, and the Tire
Pressure Monitoring Light will extinguish once the up-
dated tire pressure(s) have been received.
NOTE:When filling warm tires, the tire pressure may need
to be increased up to an additional 4 psi (30 kPa) above the
recommended cold placard pressure in order to turn the
Tire Pressure Monitoring Telltale Light off.
The vehicle may need to be driven for up to 10 minutes
above 15 mph (24 km/h) to receive this information.
Service TPMS Message
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.
The instrument cluster will display a “SERVICE TPM
SYSTEM” message for a minimum of five seconds. This
text message is then followed by a graphic display, with “-
-“ in place of the pressure value(s) indicating which Tire
Pressure Monitoring Sensor(s) is not being received. If the ignition key is cycled, this sequence will repeat,
providing the system fault still exists. If the system fault no
longer exists, the Tire Pressure Monitoring Telltale Light
will no longer flash, the
SERVICE TPM SYSTEM text
message will not be present, and a pressure value will be
displayed instead of dashes. 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 TPM
sensors.
Tire Pressure Monitoring Display
5
SAFETY 145

2. Installing some form of aftermarket window tinting thataffects radio wave signals.
3. Snow or ice around the wheels or wheel housings.
4. Using tire chains on the vehicle.
5. Using wheels/tires not equipped with TPM sensors.
The instrument cluster will also display a SERVICE TPM
SYSTEM message for a minimum of five seconds when a
system fault related to an incorrect sensor location fault is
detected. In this case, the SERVICE TPM SYSTEM mes-
sage is then followed with a graphic display with pressure
values still shown. This indicates that the pressure values
are still being received from the TPM sensors but they may
not be located in the correct vehicle position. The system
still needs to be serviced as long as the SERVICE TPM
SYSTEM message is displayed.
NOTE: Your vehicle is equipped with a compact spare
wheel and tire assembly.
1. The compact spare tire does not have a tire pressure monitoring sensor. Therefore, the TPMS will not moni-
tor the tire 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 key cycle, a chime will
sound and the Tire Pressure Monitoring Telltale Light
will still turn ON due to the low tire. The “LOW TIRE”
text message and the graphic with the low tire pressure
flashing will be displayed.
3. However, after driving the vehicle for up to 10 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 instrument cluster
will display a “SERVICE TPM SYSTEM” message for a
minimum of five seconds and then display dashes (- -)
in place of the pressure values.
4. For each subsequent ignition key cycle, a chime will sound and the Tire Pressure Monitoring Telltale Light
will flash on and off for 75 seconds and then remain on
solid, and the instrument cluster will display a “SER-
VICE TPM SYSTEM” message for a minimum of five
seconds and then display dashes (- -) in place of the
pressure values.
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 update automatically and the Tire
Pressure Monitoring Telltale Light will turn OFF, as long
as no tire pressure is below the low-pressure warning
146 SAFETY