warning light Ram C/V 2013 Workshop Manual

TIRE PRESSURE MONITOR SYSTEM (TPMS)
The TPMS will warn the driver of a low tire pressure
based on the cold inflation tire placard pressure require-
ments found on the tire placard label located on the
driver’s-side B-pillar.
The tire pressure will vary with temperature by about 1
psi (7 kPa) for every 12°F (6.5°C). This means that when
the outside temperature decreases, the tire pressure will
decrease. Tire pressure should always be set based on
cold inflation tire pressure. This is defined as the tire
pressure after a vehicle has not been driven for more than
three hours - and in outside ambient temperature.Refer
to “Tires – General Information” in “Starting and
Operating” 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
threshold for any reason, including low temperature
effects, or natural air 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 recommended
cold tire placard pressure. Once the low tire pressure
warning has been illuminated, the tire pressure must be
increased to the recommended cold tire placard pressure
in order for the “Tire Pressure Monitoring Telltale Light”
to be turned off. The system will automatically update
and the “Tire Pressure Monitoring Telltale Light” will
extinguish once the updated tire pressures have been
received.
NOTE:
The vehicle may need to be driven for up to 20
minutes above 15 mph (24 km/h) to receive this infor-
mation.
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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.
• 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 pressure
gage, even if under-inflation has not reached the level
to trigger illumination of the “Tire Pressure Monitor-
ing Telltale Light.” •
Seasonal temperature changes will affect tire pressure,
and the TPMS will monitor the actual tire pressure in
the tire.
Base System
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 for you to check the
tire pressure in all of your tires regularly and to maintain
the proper pressure.
The Basic TPMS consists of the following components:
• Receiver Module
• Four Tire Pressure Monitoring Sensors
• TPMS Telltale Warning Light
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Tire Pressure Monitoring Low Tire Pressure
Warnings
The “Tire Pressure Monitoring Telltale Light”
will illuminate in the instrument cluster, a
“LOW TIRE PRESSURE” message will display
in the instrument cluster, 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 tire placard pressure value
(located on the placard label on the driver’s-side B-Pillar).
The system will automatically update and the “Tire
Pressure Monitoring Telltale Light” will extinguish once
the updated tire pressures have been received. NOTE:
The vehicle may need to be driven for up to 20
minutes above 15 mph (24 km/h) to receive this infor-
mation.
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.
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3. Accumulation of excessive snow and/or ice aroundthe 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 warn-
ing limit, upon the next ignition switch cycle, a chime
will sound, a “LOW TIRE PRESSURE” message will
be displayed and the “Tire Pressure Monitoring Tell-
tale 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.
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.
532 STARTING AND OPERATING

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 graphics
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” message and a graphic display of the
pressure value(s) with the low tire(s) flashing. An Inflate
Tire to XX message will also be displayed.
Should a low tire condition occur on any of the four
active road tire(s), you should stop as soon as possible,
and inflate the low tire(s) that is flashing on the graphic
display to the vehicle’s recommended cold tire pressure
value as shown in the Inflate Tire to XXmessage. The
system will automatically update, the graphic display of
the pressure value(s) will stop flashing, and the “Tire
Pressure Monitoring Telltale Light” will extinguish once
the updated tire pressure(s) have been received.
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5. Once you repair or replace the original road tire, andreinstall 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 op-
eration.
The TPM sensors are regulated under one of the follow-
ing licenses:
United States MRXC4W4MA4
Canada 2546A-C4W4MA4
536 STARTING AND OPERATING

NOTE:The driver’s side sliding door cannot be opened
while the fuel door is open. This feature operates only
when the sliding door is fully closed prior to opening the
fuel door.
CAUTION!
• Damage to the fuel system or emissions control
system could result from using an improper fuel
tank filler tube cap (gas cap). A poorly fitting cap
could let impurities into the fuel system and may
cause the “Malfunction Indicator Light (MIL)” to
turn on, due to fuel vapors escaping from the
system.
• To avoid fuel spillage and overfilling, do not “top
off” the fuel tank after filling.
WARNING!
• Never have any smoking materials lit in or near the
vehicle when the gas cap is removed or the tank is
being filled.
• Never add fuel when the engine is running. This is
in violation of most state and federal fire regula-
tions and may cause the MIL to turn on.
• A fire may result if gasoline is pumped into a
portable container that is inside of a vehicle. You
could be burned. Always place gas containers on
the ground while filling.
NOTE:
• When the fuel nozzle “clicks” or shuts off, the fuel tank
is full.
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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.
584 WHAT TO DO IN EMERGENCIES

3. Align the valve notch in the wheel cover with thevalve stem on the wheel. Install the cover by hand,
snapping the cover over the two lug nuts. Do not use
a hammer or excessive force to install the cover.
4. Install the remaining lug nuts with the cone shaped end of the nut toward the wheel. Lightly tighten the
lug nuts.
WARNING!
To avoid the risk of forcing the vehicle off the jack,
do not tighten the wheel nuts fully until the vehicle
has been lowered. Failure to follow this warning may
result in personal injury. 5. Lower the vehicle to the ground by turning the jack
handle counterclockwise.
6. Finish tightening the lug nuts. Push down on the wrench while at the end of the handle for increased
leverage. Tighten the lug nuts in a star pattern until
each nut has been tightened twice. The correct tight-
ness of each lug nut is 100 ft/lbs (135 N·m). If in doubt
about the correct tightness, have them checked with a
torque wrench by your authorized dealer or service
station.
7. After 25 miles (40 km) check the lug nut torque with a torque wrench to ensure that all lug nuts are properly
seated against the wheel.
590 WHAT TO DO IN EMERGENCIES

Vehicles Without Wheel Covers
1. Mount the road tire on the axle.
2. Install the remaining lug nuts with the cone shapedend of the nut toward the wheel. Lightly tighten the
lug nuts.
WARNING!
To avoid the risk of forcing the vehicle off the jack,
do not tighten the wheel nuts fully until the vehicle
has been lowered. Failure to follow this warning may
result in personal injury. 3. Lower the vehicle to the ground by turning the jack
handle counterclockwise.
4. Finish tightening the lug nuts. Push down on the wrench while at the end of the handle for increased
leverage. Tighten the lug nuts in a star pattern until
each nut has been tightened twice. The correct tight-
ness of each lug nut is 100 ft/lbs (135 N·m). If in doubt
about the correct tightness, have them checked with a
torque wrench by your authorized dealer or service
station.
5. After 25 miles (40 km) check the lug nut torque with a torque wrench to ensure that all lug nuts are properly
seated against the wheel.
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