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NHTSA ID Number: 10222781
Manufacturer Communication Number: 19-NA-237
Summary
This informational bulletin explains how to identify possible DEF contamination.
Condition
Some customers may comment on one or more of the following conditions:
- Exhaust fluid quality poor message on the Driver Information Center (DIC).
- Diesel exhaust fluid warning lamp on.
- Other exhaust fluid quality related concerns.
Cause
This condition may be caused by contamination in the diesel exhaust fluid (DEF) system and it’s components.
Correction
Note: Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
Refer to SI for Contaminants in Diesel Exhaust Fluid Diagnosis and use special tools J26568 Coolant and Battery Fluid Tester or EN50422 Diesel Exhaust Fluid Refractometer for fluid testing.
Note: All 2017 and newer model year diesel vehicles, with the exception of the Colorado and Canyon, are equipped with a DEF quality sensor integrated into the DEF tank. The value of this sensor can be read with the scan tool in the reductant data as the Reductant Concentration.
163 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
| CADILLAC | ESCALADE | 2021-2023 |
| CADILLAC | ESCALADE ESV | 2021-2023 |
| CHEVROLET | COLORADO | 2016-2022 |
| CHEVROLET | CRUZE | 2014-2015, 2017-2019 |
| CHEVROLET | EQUINOX | 2018-2019 |
| CHEVROLET | EXPRESS | 2010-2022 |
| CHEVROLET | EXPRESS 1500 | 2010-2012, 2014 |
| CHEVROLET | EXPRESS 2500 | 2010-2011, 2014 |
| CHEVROLET | EXPRESS 3500 | 2010, 2012, 2014 |
| CHEVROLET | EXPRESS 4500 | 2012, 2014, 2016 |
| CHEVROLET | EXPRESS CUTAWAY | 2013 |
| CHEVROLET | G VAN BUS | 2010-2011 |
| CHEVROLET | G4500 | 2018 |
| CHEVROLET | SILVERADO 1500 | 2011-2018, 2020-2023 |
| CHEVROLET | SILVERADO 2500 | 2019-2023 |
| CHEVROLET | SILVERADO 3500 | 2019-2023 |
| CHEVROLET | SILVERADO 4500HD | 2019-2023 |
| CHEVROLET | SILVERADO 5500HD | 2019-2023 |
| CHEVROLET | SILVERADO 6500HD | 2019-2023 |
| CHEVROLET | SUBURBAN | 2021-2023 |
| CHEVROLET | SUBURBAN 1500 | 2021-2022 |
| CHEVROLET | TAHOE | 2021-2023 |
| GMC | SAVANA | 2010-2022 |
| GMC | SAVANA 1500 | 2010-2017 |
| GMC | SAVANA 2500 | 2010-2018 |
| GMC | SAVANA 3500 | 2010-2018 |
| GMC | SIERRA 1500 | 2011-2018, 2020-2023 |
| GMC | SIERRA 2500 | 2019-2023 |
| GMC | SIERRA 3500 | 2019-2023 |
| GMC | SIERRA DENALI | 2019-2020 |
| GMC | YUKON | 2021-2023 |
| GMC | YUKON XL | 2021-2022 |
1 Associated Document
Manufacturer Communications
Bulletin No.: 19-NA-237
Date: September, 2022
https://www.nhtsa.gov/recalls?nhtsaId=10222781
MC-10222781-0001.pdf 733.543KB
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NHTSA ID Number: 10144449
Manufacturer Communication Number: PIP5370D
Summary
This Preliminary Information communication provides information to the technician that some vehicle may have an “Exhaust Fluid Quality Poor” on the Driver Information Center or a diesel exhaust fluid warning lamp on or other exhaust fluid quality related concerns. Technician will inspect the diesel exhaust fluid for contamination. Technician should use Service Information for Contaminants in Diesel Exhaust Fluid Diagnosis and use special tool J26568 or EN50422 Diesel Exhaust Fluid Refractometer for fluid testing.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIP5370D
Published date: 08/8/2018
https://www.nhtsa.gov/recalls?nhtsaId=10144449
MC-10144449-9999.pdf 2689.641KB
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NHTSA ID Number: 10143448
Manufacturer Communication Number: PIP5370C
Summary
This Preliminary Information communication provides information to the technician that some vehicle may have an “Exhaust Fluid Quality Poor” on the Driver Information Center or a diesel exhaust fluid warning lamp on or other exhaust fluid quality related concerns. Technician will inspect the diesel exhaust fluid for contamination. Technician should use Service Information for Contaminants in Diesel Exhaust Fluid Diagnosis and use special tool J26568 or EN50422 Diesel Exhaust Fluid Refractometer for fluid testing.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIP5370C
Published date: 06/19/2018
https://www.nhtsa.gov/recalls?nhtsaId=10143448
MC-10143448-9999.pdf 2689.642KB
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NHTSA ID Number: 10119070
Manufacturer Communication Number: PIP5370A
Summary
This Preliminary Information communication provides information to the technician that some vehicle may have an ?Exhaust Fluid Quality Poor? on the Driver Information Center or a diesel exhaust fluid warning lamp on or other exhaust fluid quality related concerns. Technician will inspect the diesel exhaust fluid for contamination. Technician should use Service Information for Contaminants in Diesel Exhaust Fluid Diagnosis and use special tool J26568 or EN50422 Diesel Exhaust Fluid Refractometer for fluid testing.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIP5370A
Date: Oct-2016
https://www.nhtsa.gov/recalls?nhtsaId=10119070
MC-10119070-9999.pdf 798.052KB
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NHTSA ID Number: 10096079
Manufacturer Communication Number: PIP5370
Summary
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN THAT SOME VEHICLE MAY HAVE AN EXHAUST FLUID QUALITY POOR ON THE DRIVER INFORMATION CENTER OR A DIESEL EXHAUST FLUID WARNING LAMP ON OR OTHER EXHAUST FLUID QUALITY RELATED CONCERNS. TECHNICIAN WILL INSPECT THE DIESEL EXHAUST FLUID FOR CONTAMINATION. TECHNICIAN SHOULD USE SERVICE INFORMATION FOR CONTAMINANTS IN DIESEL EXHAUST FLUID DIAGNOSIS AND USE SPECIAL TOOL J26568 OR EN50422 DIESEL EXHAUST FLUID REFRACTOMETER FOR FLUID TESTING.
2 Associated Documents
Service Bulletin Document
Bulletin No.: PIP5370
Date: Feb-2016
https://www.nhtsa.gov/recalls?nhtsaId=10096079
SB-10096079-2280.pdf 783.666KB
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Manufacturer Communications
Bulletin No.: PIP5370
Date: Feb-2016
https://www.nhtsa.gov/recalls?nhtsaId=10096079
MC-10096079-2280.pdf 783.666KB
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| “This site contains affiliate links for which OEMDTC may be compensated” |
- Blue Def DEF002-2PK Diesel Exhaust Fluid, 2.5 Gallon, 2 Pack
- Prime Guard DEF is a safe, environmentally friendly solution for Selective Catalytic Reduction
- Mixture of 32.5 percent high purity synthetic urea and 67.5 percent deionized water
- Helps convert nitrogen oxide into harmless nitrogen gas and water vapor for cleaner emissions
- Improves fuel economy by up to 5 percent
- Inject the fluid into your exhaust stream with a specialized dosing module
- Stable, colorless, odorless, and meets ISO standards 22241 for purity and composition
- Ensures that your diesel engine operates at its best fuel efficiency by reducing NOx emissions. Helps to maintain optimum fuel economy and reduces fuel consumption
- By reducing NOx emissions, this fluid helps to protect the Selective Catalytic Reduction (SCR) system from damage, which can lead to costly repairs
- Helps to sustain the life of your SCR system by reducing deposits and buildup that can lead to clogging or malfunctioning of the system
- Compatible with all diesel SCR systems, a versatile choice for a wide range of diesel engine users. Used in heavy-duty trucks, buses, and other diesel-powered vehicles
- Meets or exceed the strictest OEM standards for quality and performance. Conforms to the ISO-22241-1 specification for DEF. An American Petroleum Institute (API) certified diesel exhaust fluid
- ENGINEERED: For use in Selective Catalytic Reduction (SCR) systems on diesel engines
- EFFICIENCY: BlueDEF diesel exhaust fluid is key to helping improve fuel economy by up to five percent
- PROTECTION: Diesel exhaust fluid is non-toxic and safe to handle
- QUALITY: Stable, colorless and odorless, and also meets ISO Standards 22241 for purity and composition
- EFFORTLESS: Easily Inject the fluid into your exhaust stream with a specialized dosing module
- Meets GM Original Equipment specifications to be approved for use in GM vehicles as well as in non-GM diesel vehicles that have an SCR (Selective Catalytic Reduction) system to meet regulated NOx emissions (Based on EPA certification testing. Your actual emissions will vary based on several factors including temperature, terrain, and driving conditions).
- High quality formula is made from high purity urea and deionized water.
- Meets API regulations and ISO 22241 standard for purity and concentration
- Nozzles sold separately
- Required for diesel vehicles equipped with a selective catalytic reduction (SCR) emissions after treatment system
- Reduces NOx emissions in diesel vehicles with an SCR catalyst
- AUS32 fluid meeting all the requirements and purity standards of ISO 22241 and DIN70071
- Nozzle specifically designed to fit the DEF filler opening of 2011MY and forward Ford diesel vehicles (as well as many competitive vehicles) and prevent over filling the DEF tank
- Use only dispensing systems that are compatible with DEF
- One gallon of BlueDEF is used approximately every 300 miles
- A truck with a 20 gallon DEF tank can go up to 6000 miles between fill-ups
- When used in an SCR system BlueDEF will reduce the levels of NOx emissions of those engines
- Non-flammable
- Diesel exhaust fluid
Last update on 2024-07-03 / Affiliate links / Images from Amazon Product Advertising API
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SEOCONTENT-START
Copyright 2022 General Motors LLC. All Rights Reserved. Service Bulletin Bulletin No.: 19-NA-237 Date: September, 2022 INFORMATION Subject: Diagnostic Tip – Diesel Exhaust Fluid System Contamination This bulletin replaces PIP5370D. Please discard PIP5370D. Brand: Model: Model Year: VIN: Engine: Transmission: from to from to Cadillac Escalade Models 2021 2023 LM2 Chevrolet Cruze 2014 2015 LUZ 2017 2019 LH7 Colorado 2016 2022 LWN Equinox 2018 2019 LH7 Express 2010 2016 LGH 2017 2022 LWN Silverado 2011 2016 LML 2017 2018 L5P Silverado 1500 2020 2021 LM2 Silverado 1500 LTD (RPO J21, VIN Digit 5 = W / Y) 2022 2022 Silverado 1500 New (RPO J22, VIN Digit 5 = A / D) Silverado 1500 2023 2023 LZ0 Silverado 2500/3500 2019 2023 L5P Silverado 4500HD, 5500HD and 6500HD 2019 2023 L5D Suburban 2021 2023 LM2 Tahoe 2021 2023 LM2 GMC Savana 2010 2016 LGH 2017 2022 LWN Sierra 2011 2016 LML, LGH 2017 2018 L5P Sierra 1500 2020 2021 LM2 Sierra 1500 Limited (RPO J21, VIN Digit 5 = 8 / 9) 2022 2022 Sierra 1500 New (RPO J22, VIN Digit 5 = H / U) Sierra 1500 2023 2023 LZ0 Sierra 2500/3500 2019 2023 L5P Yukon Models 2021 2023 LM2 Page 2 September, 2022 Bulletin No.: 19-NA-237 Involved Region or Country North America Condition Some customers may comment on one or more of the following conditions: • Exhaust fluid quality poor message on the Driver Information Center (DIC). • Diesel exhaust fluid warning lamp on. • Other exhaust fluid quality related concerns. Cause This condition may be caused by contamination in the diesel exhaust fluid (DEF) system and it’s components. Correction Note: Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. Refer to SI for Contaminants in Diesel Exhaust Fluid Diagnosis and use special tools J26568 Coolant and Battery Fluid Tester or EN50422 Diesel Exhaust Fluid Refractometer for fluid testing. Note: All 2017 and newer model year diesel vehicles, with the exception of the Colorado and Canyon, are equipped with a DEF quality sensor integrated into the DEF tank. The value of this sensor can be read with the scan tool in the reductant data as the Reductant Concentration. Information 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. Below are examples of DEF mixed with different sources of contamination. 4373640 Diesel Exhaust Fluid (DEF) mixed with Brake Fluid. 4373641 Diesel Exhaust Fluid (DEF) mixed with Dexcool. Bulletin No.: 19-NA-237 September, 2022 Page 3 4373642 Diesel Exhaust Fluid (DEF) mixed with Diesel Fuel. 4373644 Diesel Exhaust Fluid (DEF) mixed with Engine Oil. 4373645 Diesel Exhaust Fluid (DEF) mixed with Power Steering Fluid. 4373646 Diesel Exhaust Fluid (DEF) mixed with Transmission Fluid. Page 4 September, 2022 Bulletin No.: 19-NA-237 4373647 Diesel Exhaust Fluid (DEF) mixed with Windshield Washer Fluid. 4373648 Diesel Exhaust Fluid (DEF) mixed with Water. Warranty Information This bulletin is being published to help technicians identify signs of contamination in Diesel Exhaust Fluid (DEF). If you see evidence of contamination take appropriate measures to ensure that all of the contaminated fluid is removed from the vehicle. Any components that have failed as a result of contamination should NOT be covered by warranty. Version 4 Modified Released October 17, 2019 Revised October 27, 2020 – Added 2021 Model Year. Revised January 10, 2022 – Added 2022 Model Year. Revised September 12, 2022 – Added 2023 Model Year and Important statement under Information. 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. WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION
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SEOCONTENT-END
I like hat you talked about keeping contaminated fluid quarantined away form the rest of the vehicle. I will make sure to employ this later today when I take a look at my truck. I want to make sure that it is in prime operating condition. I love that truck, it’s so much fun to go muddin’ in, man I have a good time!