10-06-05-002M

Service Bulletin
Bulletin No.:
Date:
10-06-05-002M
August, 2023
INFORMATION
Subject:
Clean Exhaust Filter See Owners Manual Now, Cleaning Exhaust Filter Keep Driving
Until Message is Cleared or Diesel Particulate Filter is Full Continue Driving Displayed
on DIC, DTC P2463 May Be Set
Models:
2021-2024 Cadillac Escalade Models
2007-2009 Chevrolet Kodiak
2010-2022 Chevrolet Express
2014-2015 Chevrolet Cruze
2016-2022 Chevrolet Colorado
2017-2019 Chevrolet Cruze
2018-2019 Chevrolet Equinox
2010-2018 Chevrolet Silverado
2019–2024 Chevrolet Silverado 1500
2019-2024 Chevrolet Silverado 2500/3500
2019-2023 Silverado 4500HD, 5500HD and 6500HD
2021-2024 Chevrolet Suburban
2021-2024 Chevrolet Tahoe
2007-2009 GMC TopKick
2010-2016 GMC Sierra
2010-2022 GMC Savana
2016-2022 GMC Canyon
2018-2019 GMC Terrain
2010-2018 GMC Sierra
2019–2024 GMC Sierra 1500
2019-2024 GMC Sierra 2500/3500
2021-2024 GMC Yukon Models
All Equipped with Diesel Engine (RPO L5P, LML, LGH, LUZ, LWN, LH7, L5D, LM2 or
LZ0).
Attention: This bulletin also applies to any of the above models that may be North America Export
vehicles to Russia, Middle East, Iraq, Israel, Palestine, Chile, Colombia, Ecuador,
Venezuela, Japan, Thailand, Singapore, Other Africa and South Africa, Europe.
This bulletin has been revised to add 2024 Model Year. Please discard Corporate Bulletin
Number 10-06-05-002L.
Copyright 2023 General Motors LLC. All Rights Reserved.
Page 2
August, 2023
Important: Service agents must comply with all
International, Federal, State, Provincial, and/or
Local laws applicable to the activities it performs
under this bulletin, including but not limited to
handling, deploying, preparing, classifying,
packaging, marking, labeling, and shipping
dangerous goods. In the event of a conflict between
the procedures set forth in this bulletin and the
laws that apply to your dealership, you must follow
those applicable laws.
Depending on the Model, Model Year of the vehicle and
the Diesel Engine, one of the following messages will
be displayed in the driver information center (DIC)
when a diesel particulate filter (DPF) cleaning is
required:
– “CLEAN EXHAUST FILTER SEE OWNERS
MANUAL NOW”
– “CLEANING EXHAUST FILTER KEEP DRIVING
UNTIL MESSAGE IS CLEARED”
– “CLEANING EXHAUST FILTER CONTINUE
DRIVING”
– “DIESEL PARTIC FILTER IS FULL CONTINUE
DRIVING”
– “DIESEL PARTIC (Particulate) FILTER IS FULL
CONTINUED DRIVING MANDATORY”
– Either DIC message may be accompanied by DTC
P2463.
The DPF will clean itself as part of normal operation.
Several factors including fuel consumed, hours of
engine operation and miles driven are monitored by the
engine control module (ECM). The self-cleaning occurs
approximately once per tank of fuel. Under certain
driving conditions, such as extended idling,
stop-and-go traffic, etc., the DPF cannot clean itself.
Notice: Instruct the customer that in order for the
filter to clean itself, the vehicle must be driven
above 50 km/h (30 mph) until the message clears.
⇒ If the customer continues to drive with the DPF
warning message displayed and the exhaust filter
is not cleaned as required, the malfunction indicator
lamp will illuminate and the ENGINE POWER IS
REDUCED message will display and dealer service
will be necessary.
Messages Displayed in the Driver Information
Center (DIC) When DPF Cleaning is Required
If any of the messages appear on the driver information
center (DIC), then a DPF cleaning (regeneration) is
required. These messages are displayed to NOTIFY
the DRIVER that the status of the vehicle has changed
Bulletin No.: 10-06-05-002M
and ACTION is required by the DRIVER to correct the
condition. The messages are not a one-time display
and will occur periodically through the lifetime of the
vehicle when a DPF regeneration is required based on
engine run time, fuel consumed and distance traveled
since the last DPF regeneration.
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 message and responding to
it immediately. Clearing the message will only
make the message disappear temporarily and not
correct the condition.
4. Guide the customer to their Owners Manual or
Diesel Engine Supplement and review the
information titled: “Diesel Particulate Filter”, in
order to familiarize them with the operation of the
system.
5. Extended idle time MUST be avoided while the
message is displayed because the DPF system is
not capable of self cleaning at idle.
6. Instruct the customer that the most efficient way to
clean the filter is to DRIVE the vehicle at more than
50 km/h (30 mph) UNTIL the warning message
goes OFF.
7. Ignoring the message and continuing to drive with
the warning message ON and the exhaust filter not
being cleaned as required will eventually result in
the following:
7.1. The malfunction indicator lamp (MIL) will
illuminate at which point the DPF warning
message will be displayed and a chime will
also sound.
7.2. Diagnostic Trouble Code DTC P2463 will be
set as a result of excessive soot loading in
the DPF.
7.3. The Engine Power Is Reduced message will
be displayed. The engine WILL operate in
reduced engine power when this occurs.
7.4. Once this occurs, self cleaning of the DPF is
no longer possible and dealer service will be
necessary.
7.5. Possible irreversible damage to the DPF may
occur, requiring repair or replacement.
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these
technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper
service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a
job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your
vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the
information.
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