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Diesel Particulate Filter
If the warning lamp illuminates the diesel particulate filter could have become overloaded. Have your vehicle checked as soon as possible.
If the warning lamp illuminates you may not be able to start manual regeneration.
WARNING:
Do not park or idle your vehicle over dry leaves, dry grass or other combustible materials. The regeneration process creates very high exhaust gas temperatures and the exhaust will radiate a considerable amount of heat during and after regeneration and after you have switched the engine off. This is a potential fire hazard.
WARNING:
The normal operating temperature of the exhaust system is very high. Never work around or attempt to repair any part of the exhaust system until it has cooled. Use special care when working around the diesel oxidation catalytic converter or the diesel particulate filter. The diesel oxidation catalytic converter and the diesel particulate filter heat up to very high temperatures after only a short period of engine operation and remain hot after you switch the engine off.
WARNING:
Exhaust leaks may result in entry of harmful and potentially lethal fumes into the passenger compartment. If you smell exhaust fumes inside your vehicle, have your vehicle inspected immediately. Do not drive if you smell exhaust fumes. |
Your vehicle has various emission control components and a diesel particulate filter that enables it to comply with applicable exhaust emission standards. It filters harmful diesel particulates, for example soot from the exhaust gas.
To avoid damaging the diesel particulate filter:- Do not crank the engine for more than 10 seconds at a time.
- Do not push-start or tow-start your vehicle. Use booster cables.
- Do not switch the ignition off when your vehicle is moving.
- Do not ignore warning lamps or information messages regarding exhaust system cleaning and regeneration.
Note:
This could result in damage not covered by the vehicle Warranty.
On-Board Diagnostics System
Your vehicle has an on-board diagnostics system that monitors the emission control system. If any of the following warning lamps illuminate, this indicates that the on-board diagnostics system has detected an emission control system malfunction.
Engine coolant temperature warning lamp. | 
Ignition warning lamp. |
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Malfunction indicator lamp. | 
Powertrain warning lamp. |
Water in fuel warning lamp. |
If you continue to drive your vehicle when the warning lamp is illuminated, the engine could stop without warning.This could result in damage not covered by the vehicle Warranty. Have your vehicle checked as soon as possible.
Diesel Particulate Filter Automatic Regeneration
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WARNING:
Do not park or idle your vehicle over dry leaves, dry grass or other combustible materials. The regeneration process creates very high exhaust gas temperatures and the exhaust will radiate a considerable amount of heat during and after regeneration and after you have switched the engine off. This is a potential fire hazard.
WARNING:
The normal operating temperature of the exhaust system is very high. Never work around or attempt to repair any part of the exhaust system until it has cooled. Use special care when working around the diesel oxidation catalytic converter or the diesel particulate filter. The diesel oxidation catalytic converter and the diesel particulate filter heat up to very high temperatures after only a short period of engine operation and remain hot after you switch the engine off. |
The diesel particulate filter on your vehicle requires periodic regeneration to maintain correct operation. The emission control system automatically carries out this process. As soot gathers in the system it begins to restrict the filter. The soot that gathers inside the filter is cleaned in two different ways, passive regeneration and active regeneration. Both methods occur automatically and require no actions from the driver. During automatic regeneration, the system cleans the diesel particulate filter by oxidizing the soot. Cleaning happens during normal engine operating conditions at varying levels depending on driving conditions.
If the diesel particulate filter is near or at saturation, an information message appears in the information display. Drive your vehicle in a manner to allow effective diesel particulate filter cleaning.
Failure to carry out regeneration when required could result in a clogged diesel particulate filter. If the diesel particulate filter fills beyond the regeneration threshold, the system disables the ability to carry out regeneration. This could result in damage not covered by the vehicle Warranty.
Where vehicle use meets any of the following conditions:- Driving short distances.
- Prolonged engine idling.
- Frequently switching the engine on and off.
- High levels of acceleration and deceleration.
- Avoiding prolonged engine idling.
- Drive your vehicle in a manner to allow effective cleaning. Drive at a steady vehicle speed of 30 mph (50 km/h) or above for approximately 20 minutes.
If the warning lamp illuminates the diesel particulate filter could have become overloaded. Have your vehicle checked as soon as possible.Automatic regeneration raises the exhaust temperature to eliminate the soot particles. During cleaning soot particles are converted to harmless gasses. Once cleaned the diesel particulate filter continues to trap harmful diesel particles.
If you are driving your vehicle in a manner that allows effective cleaning, a message may appear in the information display to indicate automatic regeneration is in progress.
If you are not driving your vehicle in a manner that allows effective cleaning, a message may appear in the information display to instruct you to drive in a manner that allows automatic regeneration.
The automatic regeneration process is most effective when you drive at a steady vehicle speed of
30 mph (50 km/h) or above for approximately 20 minutes. The frequency and duration of the regeneration process varies by how you drive your vehicle, the outside air temperature and altitude. Frequency varies between
100 mi (160 km) and
310 mi (500 km) and each regeneration process lasts between 10 and 20 minutes.
Note:
Changes in the engine or exhaust sound may be heard during the regeneration process.
Note:
During regeneration at low speed or engine idle, you may smell a hot metallic odor and could notice a clicking metallic sound.This is due to the high temperatures reached during the regeneration process. This is normal.
Diesel Particulate Filter Manual Regeneration (If Equipped)
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WARNING:
Do not park or idle your vehicle over dry leaves, dry grass or other combustible materials. The regeneration process creates very high exhaust gas temperatures and the exhaust will radiate a considerable amount of heat during and after regeneration and after you have switched the engine off. This is a potential fire hazard.
WARNING:
The normal operating temperature of the exhaust system is very high. Never work around or attempt to repair any part of the exhaust system until it has cooled. Use special care when working around the diesel oxidation catalytic converter or the diesel particulate filter. The diesel oxidation catalytic converter and the diesel particulate filter heat up to very high temperatures after only a short period of engine operation and remain hot after you switch the engine off. |
If the diesel particulate filter is near or at saturation, an information message appears in the information display advising you to initiate diesel particulate filter manual regeneration.
Before you start manual regeneration, do the following:- Park your vehicle outside of any enclosed structure.
- Make sure the transmission is in park (P) or neutral (N).
- Make sure the parking brake is on.
- Park your vehicle a minimum of 10 ft (3 m) from any obstructions and materials that can easily combust or melt, for example, paper, leaves, fuels, plastics and other dry organic material.
- Make sure there is a minimum of 3.2 gal (12 L) of fuel in the fuel tank.
- Check the engine oil level.
- Check the engine coolant level.
Manual Regeneration
Where vehicle use has significant engine idle operation, frequent vehicle speed less than
25 mph (40 km/h), or driving short distances where the engine does not fully warm up, manual regeneration allows you to start diesel particulate filter cleaning when the engine is idling.
Use the manual regeneration feature when:- You are not able to drive in a manner that allows effective automatic cleaning. The automatic regeneration process is most effective when you drive at a steady vehicle speed of 30 mph (50 km/h) or above for approximately 20 minutes. .
- You choose to manually start the regeneration process when the engine is idling.
Note:
Changes in the engine or exhaust sound may be heard during the regeneration process.
Note:
During regeneration at low speed or engine idle, you may smell a hot metallic odor and could notice a clicking metallic sound.This is due to the high temperatures reached during the regeneration process. This is normal.
Starting Manual Regeneration
You can only start manual regeneration with the engine running at normal operating temperature using the information display.
Note:
During the use of manual regeneration, you may observe a light amount of white smoke. This is normal.
Note:
If you press any pedal during manual regeneration the engine may turn off. To protect the exhaust system you may not be able to restart the engine for 10 minutes.
- Using the information display controls on the steering wheel, select Settings.
- Select Vehicle Maintenance.
- Select Exhaust Filter.
- Press and hold the OK button until a confirmation message appears in the information display.
If the warning lamp illuminates you may not be able to start manual regeneration.When you start manual regeneration the engine speed rises to approximately 2000–2500 rpm and the cooling fan speed increases. A change in engine noise due to the cooling fan and engine speed increase may be heard during the regeneration process.
Depending on the amount of soot collected by the diesel particulate filter, the regeneration process varies depending on the outside air temperature and altitude. Manual regeneration may last up to 40 minutes.
When manual regeneration is complete the cooling fan and engine speed return to normal idling. The exhaust system remains very hot for several minutes after regeneration is complete. Do not reposition the vehicle over dry leaves, dry grass or other combustible materials until the exhaust system has had sufficient time to cool.
Interrupting or Cancelling Manual Regeneration
You can interrupt or cancel manual regeneration by switching the engine off. It may be possible to interrupt or cancel manual regeneration by pressing any pedal.
Note:
To protect the exhaust system you may not be able to restart the engine for 10 minutes.
Depending on the amount of time allowed for manual regeneration to operate, soot may not have had sufficient time to be eliminated. The exhaust system may still be very hot for several minutes after regeneration.
If you switch the engine off during manual regeneration, turbo charger flutter occurs. This is a consequence of switching a diesel engine off during turbo charger boost operation, which is normal.
Diesel Particulate Filter Information Messages
| Message | Action |
|---|---|
Exhaust Filter at Limit Drive to Clean Now |
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Exhaust Filter Over Limit Service Now |
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