File in Section:

Service Bulletin

Bulletin No.:
Date:

PI1226
April, 2014

PRELIMINARY INFORMATION
Subject:

DIESEL PARTIC FILTER IS FULL CONTINUE DRIVING or DIESEL PARTIC FILTER IS
FULL CONTINUED DRIVING MANDATORY Message Displayed in DIC, DTC P2463 May
be Set

Models:

2014-2015 Chevrolet Cruze
Equipped With 2.0L Clean Turbo Diesel Engine – RPO LUZ

Condition/Concern
Some customers may comment that they are unable to clear either of the following DIC messages that may be
displayed in the driver information center (DIC):
• DIESEL PARTIC FILTER IS FULL CONTINUE DRIVING
• DIESEL PARTIC FILTER IS FULL CONTINUED DRIVING MANDATORY
They may also comment that the malfunction indicator lamp (MIL) is illuminated and the ENGINE POWER IS
REDUCED message is displayed in the DIC.
A Service Technician may observe on a scan tool that DTC P2463: Diesel Particulate Filter (DPF) Soot
Accumulation is set. When DTC P2463 sets, the ECM illuminates the MIL and commands the engine control system
to operate in Reduced Engine Power.

Recommendation/Instructions
Why the Messages Are Displayed
If either of the messages appear on the DIC, then a DPF cleaning (regeneration) is required. The message means
that previous automatic attempts to perform a regeneration have been unsuccessful.
The messages are displayed to NOTIFY the DRIVER that the status of the vehicle has changed and ACTION is
REQUIRED by the DRIVER to correct the condition. The message is not a onetime display and will occur
periodically through the lifetime of the vehicle when a DPF cleaning is required, based on engine run time, fuel
consumed and distance traveled since the last DPF cleaning.
How the Diesel Particulate Filter (DPF) System Works
Tip: Even though the DPF cleaning (regeneration) will occur during city driving conditions, the regeneration
process will complete faster when driving the vehicle on a highway.
The diesel particulate filter (DPF) system filters soot particles out of the exhaust gases. When the ECM determines
that a specific amount of soot has collected in the DPF, it will look for all of the conditions that must be met in order
for it to initiate a regeneration. This self-cleaning function runs automatically when the conditions are met and may
take up to 25 minutes, without any notification to the driver. The DPF is cleaned by periodically burning off the soot
particles at high temperature. Fuel consumption may be higher during this self-cleaning period.
Under certain driving conditions, such as short distances, stop and go driving or extended idling, the system may not
be able to clean itself automatically. If the cleaning of the DPF is required and if previous driving conditions did not
enable the automatic cleaning process to complete, then the DIESEL PARTIC FILTER IS FULL CONTINUE
DRIVING message will eventually appear in the DIC.
If the regeneration process does not complete after the DIESEL PARTIC FILTER IS FULL CONTINUE DRIVING
message is displayed, then the DIESEL PARTIC FILTER IS FULL CONTINUED DRIVING MANDATORY message
will eventually display.
⇒ If the customer continues to drive when the DIESEL PARTIC FILTER IS FULL CONTINUED DRIVING
MANDATORY message is displayed and the DPF is not cleaned as required, the MIL will eventually illuminate
and the ENGINE POWER IS REDUCED message will display. When this occurs, the DPF regeneration is
inhibited and dealer service will be necessary.

DPF Cleaning Process — Driver Action Required
1. Perform the Diagnostic System Check - Vehicle.
2. Is DTC P2463 set?
⇒ If DTC P2463 is set, refer to Diagnostic Trouble Code (DTC) List - Vehicle in SI. After following the diagnostic
procedure, return to this bulletin and PROCEED to Step 3.
⇒ If DTC P2463 is not set, then proceed to Step 3 and inform the customer as indicated.
Notice: ADVISE THE CUSTOMER ABOUT ALL OF THE FOLLOWING INFORMATION:
3. The importance of the messages and responding to it immediately. Clearing the message will only make the
message disappear temporarily and not correct the problem.
4. Guide the customer to their Owner Manual > Instruments and Controls > Vehicle Messages > Diesel Particulate
Filter Messages and review the information with the customer in order to familiarize them with the operation of
the DPF system.
5. Extended idle time should be avoided while the message is displayed because the DPF system is not capable
of self cleaning at idle.
6. Instruct the customer to drive the vehicle until the message turns OFF.
7. Ignoring the message and continuing to drive with the message ON and the DPF not being cleaned as required,
will eventually result in the following occuring:
– Diagnostic Trouble Code DTC P2463 will set as a result of excessive soot loading in the DPF and the MIL will
illuminate.
– The Engine Power Is Reduced message will be displayed. The engine will operate in Reduced Engine Power.
– Once this occurs, self cleaning of the DPF is no longer possible and dealer service will be necessary.