Service bulletins for the 2019 Chevrolet Silverado
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.
2229 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Fuel system are shown. Show all
| N182202960 | 2022-02-14. Service bulletin. FUEL SYSTEM, GASOLINE; EXTERIOR LIGHTING. Service Update. Certain vehicles may have a condition where some capacitors used on the purge pump printed circuit board (PCB), may have unknown performance. These suspect capacitors are used in multiple locations on the PCB. Depending on which capacitors fail, the purge pump may not operate as intended and a malfunction indicator lamp (MIL) may illuminate. Dealers are to replace the evaporative emission purge pump. |
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| 18366 | 2022-02-14. Service bulletin. FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM; BACK OVER PREVENTION; FUEL SYSTEM, DIESEL. Service Update. Certain vehicles that are equipped with a Duramax diesel engine, the engine control module (ECM) may not take the appropriate remedial actions if an exhaust gas temperature sensor becomes disconnected. Dealers are to reprogram the engine control module with a modified calibration. |
| N182188440 | 2022-02-14. Service bulletin. ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE; AIR BAGS. Customer Satisfaction Program. Certain vehicles may have an incomplete or missing braze between the harness bulkhead support bracket and the fuel rail assembly. If the braze is incomplete the support bracket may detach from the fuel rail assembly over time. Wiring may sever and compromise the function of the fuel pump and/or the 4 passenger side injectors. If the function of the fuel pump and/or injectors is compromised, the Check Engine Light will come on, and you could experience reduced engine power. Loss of propulsion is possible, and there is a remote chance of fire if there is a fuel leak. Replace fuel rail assembly. |
| N182202960 | 2022-02-07. Service bulletin. FUEL SYSTEM, GASOLINE; EQUIPMENT; ELECTRICAL SYSTEM. Service Update. Certain vehicles may have a condition where some capacitors used on the purge pump printed circuit board (PCB), may have unknown performance. These suspect capacitors are used in multiple locations on the PCB. Depending on which capacitors fail, the purge pump may not operate as intended and a malfunction indicator lamp (MIL) may illuminate. Dealers are to replace the evaporative emission purge pump. |
| N182188440 | 2022-02-07. Service bulletin. ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE; EQUIPMENT. Customer Satisfaction Program. Certain vehicles may have an incomplete or missing braze between the harness bulkhead support bracket and the fuel rail assembly. If the braze is incomplete the support bracket may detach from the fuel rail assembly over time. Wiring may sever and compromise the function of the fuel pump and/or the 4 passenger side injectors. If the function of the fuel pump and/or injectors is compromised, the Check Engine Light will come on, and you could experience reduced engine power. Loss of propulsion is possible, and there is a remote chance of fire if there is a fuel leak. Replace fuel rail assembly. |
| 20NA110 | 2021-12-20. Service bulletin. FUEL SYSTEM, GASOLINE. This service bulletin advises the technician on what to do if the DEF pump has been replaced and perform a leak test to prime the pump. |
| N212338290 | 2021-08-09. Service bulletin. EQUIPMENT; FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING:ENGINE:DIESEL. Special Coverage. Certain vehicles equipped with a 6.6L diesel engine (RPO L5P), may have a condition that could cause the engine glow plugs to fail. If this condition occurs, the Malfunction Indicator Light (Check Engine Light) will illuminate and a diagnostic trouble code will set. Additionally, the engine may be hard to start or the engine may run rough immediately following engine start. Dealers are to replace the glow plugs as necessary. The repairs will be made at no charge to the customer. |
| 21NA124 | 2021-07-19. Service bulletin. FUEL SYSTEM, GASOLINE:STORAGE:EVAPORATIVE EMISSIONS:CANISTER. This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set. |
| 21NA025 | 2021-07-19. Service bulletin. ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE. This technical bulletin provides a procedure to replace the Fuel Power Module if found the cause of the customers concern. |
| 18NA361 | 2021-07-19. Service bulletin. FUEL SYSTEM, DIESEL; ELECTRICAL SYSTEM. This technical bulletin provides a procedure to flush the cooler lines to validate if there is excessive debris in the fuel system caused by a failed part. |
| 21NA025 | 2021-07-06. Service bulletin. FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM. This technical bulletin provides a procedure to replace the Fuel Power Module if found the cause of the customers concern. |
| 19NA153 | 2021-07-06. Service bulletin. FUEL SYSTEM, GASOLINE. This technical bulletin provides a procedure to replace the torque converter and inspect the front pump and the TEHCM for metal. |
| 18NA361 | 2021-07-06. Service bulletin. FUEL SYSTEM, GASOLINE. This technical bulletin provides a procedure to flush the cooler lines to validate if there is excessive debris in the fuel system caused by a failed part. |
| 20NA197 | 2021-05-03. Service bulletin. FUEL SYSTEM, GASOLINE. This technical bulletin provides a procedure to inspect and repair the fuel pressure sensor if found the cause of the customers concern. |
| 20NA110 | 2021-03-01. Service bulletin. FUEL SYSTEM, DIESEL; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT. This informational bulletin advises the technician on what to do if the DEF pump has been replaced and perform a leak test to prime the pump. |
| 18NA285 | 2021-03-01. Service bulletin. EQUIPMENT; FUEL SYSTEM, OTHER:KINETIC:CLUTCH. This informational bulletin advises the tech of a possible normal condition when the vehicle creeps forward during start up conditions when the clutch packs are full of residual oil. |
| N202317060 | 2021-02-16. Service bulletin. FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM; EXTERIOR LIGHTING; WHEELS. Emissions Recall - General Motors has decided to conduct a Voluntary Emission Recall involving certain vehicles. The vehicle?s Engine Control Module (ECM) may have been reprogrammed during service with incorrect diagnostic software. If that occurred, the ECM may not accurately diagnose a fault in the auxiliary fuel tank system or the four wheel drive system. Further, the ECM may incorrectly report a fault or illuminate the malfunction indicator lamp (check engine light) on vehicles not equipped with these two systems. Dealers are to reprogram the ECM. |
| 030604017O | 2020-12-21. Service bulletin. FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING:ENGINE:DIESEL. This Informational Bulletin provides information on availability of Diesel Fuel additives. |
| 20NA197 | 2020-12-21. Service bulletin. EQUIPMENT; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL. This technical bulletin provides a procedure to inspect and repair the fuel pressure sensor if found the cause of the customers concern. |
| PIT5161H | 2020-12-14. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; FUEL SYSTEM, GASOLINE; EQUIPMENT. This Preliminary Information communication provides information to the technician about vehicles that may have a bump feel or clunk noise at a stop or on launch. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle. The bump clunk issue may be due to fuel movement in the fuel tank when not completely full. The condition is eliminated after completely filling the fuel tank. |
| 050604022R | 2020-12-07. Service bulletin. FUEL SYSTEM, DIESEL. This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL. |
| 19NA237 | 2020-11-30. Service bulletin. FUEL SYSTEM, DIESEL; EQUIPMENT. This informational bulletin explains how to identify possible DEF contamination. |
| 20NA110 | 2020-11-30. Service bulletin. FUEL SYSTEM, DIESEL; FUEL SYSTEM, DIESEL:DELIVERY:FUEL PUMP. This informational bulletin advises the technician on what to do if the DEF pump has been replaced and perform a leak test to prime the pump. |
| 18NA361 | 2020-11-30. Service bulletin. FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING:ENGINE:DIESEL. This technical bulletin provides a procedure to flush the cooler lines to validate if there is excessive debris in the fuel system caused by a failed part. |
| 18NA150 | 2020-11-30. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, OTHER. This informational bulletin provides information on 6.6L Duramax Possible Oil Leak Path Information. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.