NHTSA ID Number: 11007123
Manufacturer Communication Number: 16-NA-244
TSB/Document Date: 2024-09-05
Summary
This informational bulletin provides information on Diesel Exhaust Fluid (DEF) and the proper use of the DEF system.
Bulletin No.: 16-NA-244
Service Bulletin
Date: August, 2024
INFORMATION
Subject:
Brand:
Information on Diesel Exhaust Fluid (DEF)
Model:
from
to
Escalade Models
2021
2024
Cruze
2014
2015
Cruze (GEN II VIN B)
2017
2019
Colorado
2016
2022
Express
2010
2022
Equinox
2018
2019
Silverado
2011
2018
Silverado 1500 (New
Model)
2020
2021
2022
2022
Silverado 1500 LTD
(RPO J21, VIN Digit 5
= W / Y)
Silverado 1500 New
(RPO J22, VIN Digit 5
= A / D)
Silverado 1500
2023
Silverado 2500HD/
3500HD
2019
Silverado 4500HD,
5500HD and 6500HD
2019
Suburban
Tahoe
Model Year:
2025
2021
Canyon
2016
2022
Savana
2010
2022
Sierra
2011
2018
Sierra 1500 (New
Model)
2020
2021
2022
2022
Sierra 1500 Limited
(RPO J21, VIN Digit 5
= 8 / 9)
Sierra 1500 New
(RPO J22, VIN Digit 5
=H/U
Sierra 1500
2023
Sierra 2500HD/
3500HD
2019
Terrain
2018
2019
Yukon Models
2021
2025
Copyright 2024 General Motors
. All Rights Reserved.
2025
VIN:
from
Engine:
to
(Diesel)
L5D, L5P, LM2,
LML, LGH, LUZ,
LWN, LH7, LZ0
Page 2
Involved Region or Country
August, 2024
Bulletin No.: 16-NA-244
North America, Europe, Uzbekistan, Russia, Middle East, Iraq, Israel, Palestine, Argentina, Brazil, Bolivia, Chile, Colombia, Ecuador, Paraguay, Peru, Uruguay, Venezuela,
Japan, GM Korea Company, China, Taiwan, Thailand, Singapore, Philippines,
Australia/New Zealand, Egypt, Other Africa, South Africa.
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.
General Information
Note: DEF usage will vary depending on: driving style,
trailer towing, loaded vehicle weight, weather, idle time,
PTO usage.
On vehicles without a DEF Gauge, as a general rule,
when the DIC shows a DEF level of anything except
OK, you can add at least 2.5 gallons (9.5L). The
amount to add to top off will vary.
Diesel Exhaust Fluid (DEF) has a shelf life of 2 years.
However, this can be reduced if the fluid is exposed to
direct sunlight or above 30°C (86°F) for sustained
periods. All DEF packaging should be labeled with a
production date.
The Driver Information Center (DIC) will display a
series of messages regarding the amount of DEF that
is available. When mileage countdown is zero, the
vehicle speed is reduced. Refer to Owners Manual.
Cold Weather Operation Information
DEF freezes when exposed to temperatures below
-11°C (12°F). In cold conditions it is normal for DEF to
freeze. The tank and delivery lines are heated to thaw
frozen DEF. When filling the tank in cold conditions, the
vehicle may not recognize the new level until the tank
thaws. In certain cold conditions, it is possible to find
some frozen DEF in the DEF fill pipe opening. If you
are expecting to be in extremely cold areas, it is recommenced to fill the tank prior to cold temperature
exposure.
Diesel Exhaust Fluid (DEF) is required to maintain
normal vehicle operation and emissions compliance.
When filling the DEF tank, there may be a short delay
before detecting the increased level of fluid and
updating the Driver Information Center (DIC).
Version
9
Modified
Released August 01, 2016
Revised December 20, 2016 – Updated the Model years and added the Chevrolet Cruze,
Colorado and GMC Canyon models.
Revised September 05, 2017 – Updated Model Years.
Revised October 29, 2020 – Updated Model Years.
Revised January 06, 2022 – Updated the Model Years and added the Chevrolet Silverado 1500 (New Model) and 4500, 5500 and 6500HD models.
Revised September 14, 2022 — Added the 2023 Model Year, Added Yukon, Suburban,
Escalade Models.
Revised March 16, 2023 – Added the 2024 Model Year to the 2500/3500 Heavy Duty
Trucks.
Revised August 01, 2023 – Added the 2024 Model Year to the Silverado 1500 and Sierra
1500.
Revised August 09, 2024 - Added 2025 to Model Year and 2024 Escalade.
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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TSB/Document ID: 16-NA-244
Replacement Service Bulletin Number:
MFR Communication Date: 2024-08-09
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE
MFR Component System:
MFR Component Subsystem:
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