Service bulletin 20-NA-038
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 | 11006377 |
| Published by NHTSA | 2024-08-15 |
| Manufacturer's number | 20-NA-038 |
| Manufacturer's date | 2024-07-23 |
| NHTSA component | FUEL/PROPULSION SYSTEM |
NHTSA's summary
This informational bulletin explains the difference in AFM and DFM engines and what is and is not activated during this occurrence.
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
| CADILLAC CT5 | 2022, 2023, 2024 |
|---|---|
| CADILLAC CT6 | 2019, 2020 |
| CADILLAC CTS | 2016, 2017, 2018, 2019 |
| CADILLAC CTS-V | 2016 (the catalog's model; the bulletin names a series or trim of it) |
| CADILLAC CTS-V | 2018 (the catalog's model; the bulletin names a series or trim of it) |
| CADILLAC ESCALADE | 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 |
| CADILLAC ESCALADE ESV | 2015, 2016 (the catalog's model; the bulletin names a series or trim of it) |
| CADILLAC ESCALADE ESV | 2017, 2018, 2019, 2020, 2021, 2022, 2023 |
| CHEVROLET 3500 | 2020 |
| CHEVROLET 3500 | 2021 |
| CHEVROLET 3500 | 2022 |
| CHEVROLET 3500HD | 2024 |
| CHEVROLET 4500 | 2020 |
| CHEVROLET 4500 | 2022 |
| CHEVROLET 4500HD | 2020, 2021, 2022, 2023 |
| CHEVROLET 4500XD | 2020, 2021, 2022 |
| CHEVROLET CAMARO | 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 |
| CHEVROLET CORVETTE | 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 |
| CHEVROLET EQUINOX | 2022 |
| CHEVROLET EXPRESS | 2018, 2019, 2020, 2021 |
| CHEVROLET EXPRESS 2500 | 2023, 2024 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET EXPRESS 3500 | 2023, 2024 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET EXPRESS CUTAWAY VAN | 2018, 2019, 2020, 2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SILVERADO 1500 | 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SILVERADO 2500 | 2020, 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SILVERADO 3500 | 2020, 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SUBURBAN | 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 |
| CHEVROLET SUBURBAN | 2024 |
| CHEVROLET SUBURBAN 1500 | 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET TAHOE | 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 |
| CHEVROLET TAHOE POLICE PURSUIT | 2015, 2016 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SAVANA | 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 |
| GMC SAVANA | 2024 |
| GMC SAVANA 1500 | 2015, 2016, 2017 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SAVANA 2500 | 2015, 2016, 2017, 2018 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SAVANA 2500 | 2023 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SAVANA 3500 | 2015, 2016, 2017, 2018 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SAVANA 3500 | 2023 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA 1500 | 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA 2500 | 2020, 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA 3500 | 2020, 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it) |
| GMC YUKON | 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 |
| GMC YUKON DENALI | 2015, 2016, 2017, 2018, 2019 (the catalog's model; the bulletin names a series or trim of it) |
| GMC YUKON DENALI XL | 2015, 2016, 2017, 2018 (the catalog's model; the bulletin names a series or trim of it) |
| GMC YUKON XL | 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 25V619000 | 2025-09-18. FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
|---|---|
| 2025429 | 2025-08-21. Fuel System |
| 25V536000 | 2025-08-21. FUEL SYSTEM, GASOLINE |
| 2023040 | 2023-02-02. Fuel System |
| 23V047000 | 2023-02-02. FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY |
| 2023013 | 2023-01-19. Fuel System |
| 23V013000 | 2023-01-19. FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP:CONTROL/DRIVE MODULE |
| 2021583 | 2021-09-23. Fuel System |
| 21V739000 | 2021-09-23. FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP:CONTROL/DRIVE MODULE |
| 21V064000 | 2021-02-11. FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY |
A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.
| N262558690-02 | 2026-09-23. Service campaign. General Motors has decided to conduct a Voluntary Emission Recall. Certain vehicles may have a condition which can cause the fuel pump power control module to fail. If this were to occur, fuel flow to the engine could be interrupted. Dealers will replace the fuel pump power control module. |
|---|---|
| N262558690 | 2026-09-16. Service campaign. General Motors has decided to conduct a Voluntary Emission Recall. Certain vehicles may have a condition which can cause the fuel pump power control module to fail. If this were to occur, fuel flow to the engine could be interrupted. Dealers will replace the fuel pump power control module. |
| N242452131-02 | 2026-09-15. Emissions. Emission Recall. General Motors has decided to conduct a Voluntary Emission Recall involving certain 2023-2024 model year Chevrolet Colorado / Silverado 1500 and GMC Canyon / Sierra 1500 vehicles equipped with a 2.7L engine (RPO L3B). The Engine Control Module (ECM) may not sufficiently control fuel injector flow rate under certain driving conditions. Dealers are to reprogram the ECM. |
| N262558690-01 | 2026-09-02. Emissions. Emission Recall. General Motors has decided to conduct a Voluntary Emission Recall. Certain vehicles listed above may have a condition which can cause the fuel pump power control module to fail. If this were to occur, fuel flow to the engine could be interrupted. Dealers will replace the fuel pump power control module. |
| N262558690-01 | 2026-08-12. Service campaign. General Motors has decided to conduct a Voluntary Emission Recall. Certain vehicles may have a condition which can cause the fuel pump power control module to fail. If this were to occur, fuel flow to the engine could be interrupted. Dealers will replace the fuel pump power control module. |
| N242452130-01 | 2026-08-04. Service campaign. Certain vehicles may have a condition in which the Engine Control Module (ECM) does not sufficiently control fuel injector flow rate under certain driving conditions. Dealers are to reprogram the ECM. |
| N262558690 | 2026-07-16. Service campaign. General Motors has decided to conduct a Voluntary Emission Recall. Certain vehicles may have a condition which can cause the fuel pump power control module to fail. If this were to occur, fuel flow to the engine could be interrupted. Dealers will replace the fuel pump power control module. |
| N252516900-01 | 2026-02-19. Emissions. Emission Recall. General Motors has decided to conduct a Voluntary Emission Recall. Certain vehicles listed above may have a condition which can cause the fuel pump power control module to fail. If this were to occur, fuel flow to the engine could be interrupted. Dealers will replace the fuel pump power control module. |
| N252516900 | 2026-02-05. Emissions. Emission Recall. Additional VINs moved to Open status. |
| N252516900 | 2026-01-29. Emissions. Emission Recall. Additional VINs Moved to ‘Open’ Status |