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WHAT IS THE DIESEL
PARTICULATE FILTER
The diesel particulate filter is part of yourvehicle's emissions system and filtersharmful diesel particulates from theexhaust gas.
HOW DOES THE DIESEL
PARTICULATE FILTER WORK
The diesel particulate filter reducesemissions by trapping exhaust particlesbefore they reach the tailpipe. The systemmust periodically clean the exhaustparticles that gather inside the filter. Thisis carried out in three ways, passiveregeneration, active regeneration andmanual regeneration.
Passive Regeneration
In passive regeneration, the normalexhaust system temperature cleans thefilter by oxidizing the soot. Cleaning occursduring normal vehicle operating conditionsdue to driving patterns.
Active Regeneration
Once the diesel particulate filter is full,active regeneration raises the exhausttemperature to eliminate the particles.
When the engine control module detectsthat the diesel particulate filter is nearlyfull of particulates, and you are notoperating your vehicle in a manner to alloweffective regeneration, messages appearin the information display as a reminderfor you to drive your vehicle in order toclean the diesel particulate filter. If youdrive your vehicle in a manner to alloweffective regeneration, the informationdisplay shows a cleaning exhaust filtermessage.
DIESEL PARTICULATE FILTER
PRECAUTIONS
WARNING: Do not park or idle yourvehicle over dry leaves, dry grass or othercombustible materials. The regenerationprocess creates very high exhaust gastemperatures and the exhaust willradiate a considerable amount of heatduring and after regeneration and afteryou have switched the engine off. This isa potential fire hazard.
WARNING: When the ExhaustFilter Cleaning message appears in theinformation display, do not park nearflammable materials, vapors orstructures until filter cleaning iscomplete.
WARNING: The normal operatingtemperature of the exhaust system isvery high. Never work around or attemptto repair any part of the exhaust systemuntil it has cooled. Use special care whenworking around the diesel oxidationcatalytic converter or the dieselparticulate filter. The diesel oxidationcatalytic converter and the dieselparticulate filter heat up to very hightemperatures after only a short periodof engine operation and remain hot afteryou switch the engine off.
Note:Avoid running out of fuel.
Note: During regeneration at low speed orengine idle, you may smell a hot metallicodor and could notice a clicking metallicsound. This is due to high temperaturesreached during regeneration and is normal.
Note:Changes in the engine or exhaustsound may be heard during the regenerationprocess.
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Failure to perform active or manualregeneration when instructed could resultin a clogged diesel particulate filter. If thediesel particulate filter fills beyond theregeneration threshold, your vehicledisables the ability for active and manualregeneration. This could result inirreversible damage your vehicle Warrantymay not cover.
DIESEL PARTICULATE FILTER
REQUIREMENTS
The diesel particulate filter on your vehiclerequires periodic regeneration to maintainits correct function.
If your journeys meet one of the followingconditions:
•You drive only short distances.
•You frequently switch the ignition onand off.
•Your journeys contain a high level ofacceleration and deceleration.
You must carry out occasional trips withthe following conditions to assist theregeneration process:
•Drive your vehicle in more favorableconditions, which you will find at highervehicle speeds in normal driving, on amain road or freeway for a minimumof 20 minutes. This drive may includeshort stops that will not affect theregeneration process.
•Avoid prolonged idling and observespeed limits and road conditions.
•Do not switch the ignition off.
•Select a suitable gear to ideallymaintain engine speed between 1500and 3000 RPM.
DIESEL PARTICULATE FILTER
MANUAL REGENERATION
WHAT IS DIESEL PARTICULATEFILTER MANUAL REGENERATION
Diesel particulate filter manualregeneration allows you to manually startregeneration of the diesel particulate filterat idle to clean the filter.
Note:If you are not sure whether yourvehicle has this feature, contact yourauthorized dealer.
DIESEL PARTICULATE FILTERMANUAL REGENERATIONPRECAUTIONS
WARNING: Stay clear of theexhaust tailpipe during regeneration. Hotexhaust gases can burn you badly.
You may not be able to use manualregeneration if the service engine soonwarning lamp appears in the informationdisplay.
Note:During the use of manualregeneration, you may observe a lightamount of white smoke. This is normal.
DIESEL PARTICULATE FILTERMANUAL REGENERATIONREQUIREMENTS
You can use the manual regenerationfeature when a message appears in theinformation display and you are not ableto drive in a manner that allows effectiveautomatic active regeneration or if youchoose to manually start the regenerationof the diesel particulate filter while thevehicle is idle.
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Before you start manual regeneration, dothe following:
•Make sure the parking brake is on.
•Shift into park (P) on stable, levelground.
•Park your vehicle outside of anystructure.
•Park your vehicle 10–15 ft (3–5 m)away from any obstructions and awayfrom materials that can easily combustor melt, for example paper, leaves,petroleum products, fuels, plastics andother dry organic material.
•Make sure there is a minimum of 1/8tank of fuel.
•Make sure all fluids are at proper levels.
DIESEL PARTICULATE FILTERMANUAL REGENERATIONLIMITATIONS
You cannot use manual regeneration untilthe diesel particulate filter load percentagehas reached 100% or Full. The dieselparticulate filter load percentagefluctuates up and down when driving yourvehicle due to active and passiveregenerations.
If your vehicle is operated with significantstationary operation, low speed drivecycles less than 25 mph (40 km/h), shortdrive cycles, drive time less than 15 minutesor the vehicle does not fully warm up,passive and active regeneration may notsufficiently clean the diesel particulatefilter system.
Aftermarket devices or modifications tothe exhaust system may reduce theeffectiveness of the exhaust system aswell as cause damage to the exhaustsystem or engine. This may also degradevehicle performance and could lead toengine damage that may not be coveredby the vehicle Warranty.
STARTING DIESEL PARTICULATEFILTER MANUAL REGENERATION
Start with your vehicle engine and when ithas reached the normal operatingtemperature, press the information displaycontrol button on the steering wheel. SeeInstrument Cluster Display (page 143).
If the diesel particulate filter is near or atsaturation, a message requestingpermission to initiate filter cleaningappears in the information display. SeeDiesel Particulate Filter – InformationMessages (page 224). Answer yes to thisprompt and then follow the next promptsregarding exhaust position required toinitiate manual regeneration. Be sure tounderstand each prompt. If you are notsure what is being asked by each prompt,contact an authorized dealer. The displayconfirms the operation has started andwhen it has finished. You can also drive toclean the filter.
When the system is at the pointof oversaturation, themalfunction indicator lampilluminates and a message appears in theinformation display. You cannot initiatefilter cleaning. You must have your vehiclechecked as soon as possible.
Once manual regeneration starts, enginespeed increases and the cooling fan speedincreases. You will hear a change in audiblesound due to engine speed and cooling fanspeed increases.
It is not necessary to open the hood on theengine compartment. Once manualregeneration completes, the engine speedreturns to normal idling. The exhaustsystem remains very hot for severalminutes even after regeneration iscomplete. Do not reposition the vehicleover materials that could burn until the
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exhaust system has had sufficient time tocool. Depending on the amount of sootcollected by the diesel particulate filter,ambient temperature and altitude, manualregeneration lasts approximately 30minutes.
DIESEL PARTICULATE FILTER
– TROUBLESHOOTING
DIESEL PARTICULATE FILTER –WARNING LAMPS
If there are any issues with thediesel particulate filter system,or when the system is at thepoint of oversaturation, thepowertrain warning lamp andthe malfunction indicator lampilluminate to inform you that your vehiclerequires service. You may not be able toinitiate filter cleaning. Have your vehiclechecked as soon as possible.
DIESEL PARTICULATE FILTER – INFORMATION MESSAGES
ActionMessage
Your vehicle has entered the cleaning mode. Various engineactions will raise the exhaust temperature in the DieselParticulate Filter system to burn off the particles (exhaustsoot). After the vehicle burns the particles off, the exhausttemperature will return to normal levels. This message isNORMAL.
Exhaust Filter Cleaning
The diesel particulate filter is full of particles (exhaust soot)and you are not operating the vehicle in a manner that allowsnormal cleaning. Drive the vehicle above 30 mph (50 km/h)when it is safe to do so, until the message turns off.
Exhaust Filter Over-loaded Drive to Clean
Exhaust Filter Over-loaded Clean Now
The diesel particulate filter is full of particles (exhaust soot)and you are not operating the vehicle in a manner that allowsnormal cleaning. Drive the vehicle above 30 mph (50 km/h)when it is safe to do so, until the message turns off.
Exhaust Filter at LimitClean Now
Exhaust Filter at LimitDrive to Clean Now
Your diesel particulate filter is clean.Exhaust Filter DriveComplete
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ActionMessage
Your diesel particulate filter is clean (OCR Only).Exhaust Filter Cleaned
The manual regeneration process has stopped (OCR Only).Exhaust Filter CleaningStopped
You must have your vehicle serviced by an authorized dealer.Ignoring this warning message could lead to reduced drivabilityand customer expense, including damage to the dieselparticulate filter. Your new vehicle warranty may not coverthis damage.
Exhaust Filter Over LimitService Now
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WHAT IS THE SELECTIVE
CATALYTIC REDUCTION
SYSTEM
The selective catalytic reduction systemhelps reduce tailpipe emissions andrequires Diesel Exhaust Fluid (DEF) toconvert nitrogen oxides into nitrogen andwater.
HOW DOES THE SELECTIVE
CATALYTIC REDUCTION
SYSTEM WORK
The selective catalytic reduction systeminjects diesel exhaust fluid into the exhaustsystem to enable correct selective catalyticreduction system function.
The usage of diesel exhaust fluid hasincreased from prior model years in orderto meet more stringent emissionsrequirements. The diesel exhaust fluidusage ranges from approximately 2-6%of fuel burned (100.00 gal (378.54 L) offuel requires approximately 2.00 gal(7.57 L)to 6.00 gal (22.71 L) of dieselexhaust fluid) depending on vehicle usage.Factors that influence diesel exhaust fluidusage may include:
•Payload/Towing
•Driving Style
•Altitude
•Humidity
•Temperature
SELECTIVE CATALYTIC
REDUCTION SYSTEM
PRECAUTIONS
WARNING: Keep diesel exhaustfluid out of reach of children. Avoidcontact with skin, eyes or clothing. Incase of contact with your eyes, flushimmediately with water and get promptmedical attention. In case of contactwith your skin, clean immediately withsoap and water. If you swallow anydiesel exhaust fluid, drink plenty ofwater, call a physician immediately.
WARNING: Only refill the dieselexhaust fluid tank in a well ventilatedarea. When you remove the dieselexhaust fluid tank filler cap or a dieselexhaust fluid container cap, ammoniavapors may escape. Ammonia vaporscan be irritating to skin, eyes and mucousmembranes. Inhaling ammonia vaporscan cause burning to the eyes, throat andnose and cause coughing and wateryeyes.
WARNING: Diesel exhaust fluidmust be refilled when low or replacedwhen contaminated or your vehiclespeed becomes limited to 50 mph(80 km/h). In these conditions, drive withcaution and refill diesel exhaust fluidimmediately. If the diesel exhaust fluidbecomes empty or contaminated andfluid is not replaced, your vehiclebecomes limited to engine idle only oncestopped. In these conditions, be cautiouswhere you stop your vehicle because youmay not be able to drive long distancesor maintain highway speeds until yourefill or replace the diesel exhaust fluid.
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WARNING: Tampering with ordisabling the selective catalyticreduction system results in severevehicle performance limitation includingeventual speed limiting to 5 mph(8 km/h).
Note: Do not put diesel exhaust fluid in thefuel tank. Do not start the engine if anyamount of diesel exhaust fluid was addedto the diesel fuel tank as it will likely lead tofailure of the fuel pump and injectors andmay result in severe engine damage whichyour vehicle Warranty may not cover. Thediesel fuel tank must be completely drainedand cleaned prior to being refilled with cleandiesel fuel and starting the engine.
Selective catalytic reduction systems aresensitive to contamination of the dieselexhaust fluid. Maintaining the purity of thefluid is important to avoid systemmalfunctions. If you remove or drain thediesel exhaust fluid tank, do not use thesame fluid to refill the tank. The systemhas a sensor to monitor fluid quality.
Driving without refilling, replacingcontaminated diesel exhaust fluid, orhaving the selective catalytic reductionsystem repaired results in the followingactions as required by the California AirResources Board (CARB) and the U.S.Environmental Protection Agency (EPA):
•Within a preset distance to empty,speed is limited upon vehicle restart.Prior to this occurring a messageappears in the information display.
•Further vehicle operation withoutrefilling or replacing contaminateddiesel exhaust fluid causes the engineto enter an idle-only condition. Thisonly occurs upon vehicle refueling,vehicle idling in park for 1 hour, orengine shutdown for 10 minutes ormore and is indicated by a message inthe information display indicatingrequired actions to resume normaloperation. It is required to add aminimum of 1.0 gal (3.8 L) of dieselexhaust fluid to the tank to exit theidle-only condition, but your vehicle isstill in the speed-limiting mode untilyou refill the tank completely.
Note:For vehicle speed limiting or idle-onlycondition, normal vehicle operation resumeswhen you refill the diesel exhaust fluid tankor repair the contaminated system. If thesystem is contaminated or inoperative, haveyour vehicle checked as soon as possible.
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SELECTIVE CATALYTIC
REDUCTION SYSTEM
REQUIREMENTS
Only use diesel exhaust fluid that iscertified by the American PetroleumInstitute (API).
You can purchase diesel exhaust fluid atan authorized dealer, or contact roadsideassistance for help in finding a retailer thatsells diesel exhaust fluid.
Note:Non-certified diesel exhaust fluid usecan cause damage that your Warranty maynot cover
SELECTIVE CATALYTIC
REDUCTION SYSTEM
GUIDELINES
•Diesel exhaust fluid is non-flammable,non-toxic, colorless and water-solubleliquid.
•In order for the system to operatecorrectly you must maintain the dieselexhaust fluid level.
•Do not overfill the diesel exhaust fluidtank.
•Diesel exhaust fluid is corrosive.
•Avoid spilling diesel exhaust fluid onpainted surfaces, carpeting or plasticcomponents. Immediately wipe awayany diesel exhaust fluid that has spilledwith a damp cloth and water. If it hasalready crystallized, use warm waterand a sponge.
•Do not store the diesel exhaust fluidbottle in your vehicle. If it leaks it couldcause damage to interior componentsor release an ammonia odor inside yourvehicle.
•Do not re-use the diesel exhaust fluidcontainer once it is emptied.
•Store diesel exhaust fluid out of directsunlight and in temperatures between23–68°F (-5–20°C).
•The system has a diesel exhaust fluidquality sensor. Dilution of dieselexhaust fluid or use of any other liquidin the selective catalytic reductionsystem leads to a diesel exhaust fluidsystem fault, eventually leading to thevehicle only operating in idle-onlymode.
•Do not dilute diesel exhaust fluid withwater or any other liquid.
FILLING THE SELECTIVE
CATALYTIC REDUCTION
SYSTEM TANK
FILLING THE SELECTIVECATALYTIC REDUCTION SYSTEMTANK IN COLD WEATHER
Diesel exhaust fluid may freeze if theambient temperature is below 12°F (-11°C).Your vehicle has a preheating systemwhich allows diesel exhaust fluid tooperate below 12°F (-11°C). If you do notuse your vehicle for an extended periodwhen the ambient temperature is below12°F (-11°C), the fluid in the tank mayfreeze.
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