Service bulletin 19NA237
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10168197 |
| Published by NHTSA | 2019-11-25 |
| Manufacturer's number | 19NA237 |
| Manufacturer's date | 2019-10-17 |
| NHTSA component | FUEL SYSTEM, DIESEL |
NHTSA's summary
This informational bulletin explains how to identify possible DEF contamination.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Fuel system
| CHEVROLET 6500 | 2019 |
|---|---|
| CHEVROLET COLORADO | 2016, 2017, 2018, 2019, 2020 |
| CHEVROLET CRUZE | 2014, 2015, 2016, 2017, 2018, 2019 |
| CHEVROLET EQUINOX | 2018, 2019 |
| CHEVROLET EXPRESS | 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 |
| CHEVROLET EXPRESS | 2020 |
| CHEVROLET SILVERADO 1500 | 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SILVERADO 2500 | 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SILVERADO 3500 | 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SILVERADO 4500 | 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SILVERADO 5500 | 2020 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SILVERADO 6500 | 2019 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET duplicate SILVERADO 5500 | 2019 |
| GMC CANYON | 2016, 2017, 2018, 2019, 2020 |
| GMC SAVANA | 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 |
| GMC SAVANA | 2020 |
| GMC SIERRA 1500 | 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA 1500 | 2020 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA 2500 | 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA 3500 | 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA DENALI | 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA DENALI | 2015, 2016 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA DENALI | 2018, 2019 (the catalog's model; the bulletin names a series or trim of it) |
| GMC TERRAIN | 2018, 2019, 2020 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 2023040 | 2023-02-02. Fuel System |
|---|---|
| 23V047000 | 2023-02-02. FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| 19V837000 | 2019-11-21. FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP |
| 2019462 | 2019-09-19. Fuel System |
| 19V667000 | 2019-09-19. FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY |
| 2019055 | 2019-02-08. Fuel System |
| 19V088000 | 2019-02-07. FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY |
| 2018289 | 2018-06-01. Fuel System |
| 18V358000 | 2018-05-31. FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP |
| 2018251 | 2018-05-11. Fuel System |
A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.
| 18-NA-180 | 2025-10-16. Service bulletin. This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information. |
|---|---|
| 18-NA-180 | 2025-09-26. Service bulletin. This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information. |
| 24-NA-139 | 2025-06-07. Service bulletin. This service bulletin provides a procedure to replace the FPDCM if found to cause customers concerns of Crank No Start, Stalling, Malfunction Indicator Lamp (MIL) Illuminated – DTC P023F or P129F Set. |
| 25-NA-065 | 2025-04-24. Service bulletin. This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for analysis. |
| PIE0812 | 2025-02-11. Service bulletin. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regard to the vehicle having loss of power and/or having the MIL illuminated on the Driver Information Center (DIC). |
| 18-NA-180 | 2025-01-30. Service bulletin. This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information. |
| 18-NA-180 | 2025-01-08. Service bulletin. This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information. |
| 18-NA-180 | 2024-12-17. Service bulletin. This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information. |
| PIT6259 | 2024-12-05. Service bulletin. This Preliminary information communicates information on faulty replacement K111 Fuel Pump Driver Control Module. |
| 24-NA-225 | 2024-12-02. Service bulletin. This bulletin provides information on how to look for and test for DEF or water in the fuel system and what the specs should be. |