Service bulletins for the 2019 GMC Sierra
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.
2009 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
Only bulletins with component: Fuel system are shown. Show all
| 20NA043 | 2022-06-21. Service bulletin. EQUIPMENT; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:MANIFOLD PRESSURE (MAP) SENSOR. This informational bulletin advises the technician to not replace the TMAP sensor, clean it using air or harsh chemicals but allow time for the sensor to thaw. |
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| PIP5856 | 2022-06-13. Service bulletin. FUEL SYSTEM, DIESEL. This Preliminary information communicates provides information to the technician on the use of R-99 or R-95 Renewable diesel fuel. |
| 150089004D | 2022-06-13. Service bulletin. FUEL SYSTEM, OTHER. This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage. |
| 050604022S | 2022-06-13. Service bulletin. FUEL SYSTEM, GASOLINE; 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. |
| 030604017P | 2022-06-13. Service bulletin. FUEL SYSTEM, GASOLINE; FUEL SYSTEM, DIESEL. This service bulletin provides information on availability of Diesel Fuel additives. |
| 21-NA-043 | 2022-06-02. Service bulletin. FUEL SYSTEM, GASOLINE; SERVICE BRAKES; ENGINE AND ENGINE COOLING; FUEL SYSTEM, DIESEL; WHEELS. This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer. |
| 22NA014 | 2022-05-31. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE. This technical provides a procedure to check for a possible faulty Reductant Injector and replace if the cause of the customers concern. |
| 18NA361 | 2022-05-31. 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. |
| 18NA235 | 2022-05-31. Service bulletin. FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP. This information bulletin advised the tech of possible use of low fuel quality and the possible ramifications in performance in regards to the customers concerns. |
| 18NA103 | 2022-05-31. Service bulletin. EXTERIOR LIGHTING; FUEL SYSTEM, GASOLINE. This service bulletin provides service information for customer concerns of an in-tank fuel pump whining noise, engine hard to start and/or stalls and Malfunction Indicator Lamp (MIL) is illuminated that may be caused by gelling of fuel in cold temperatures. |
| 16NA372 | 2022-05-31. Service bulletin. FUEL SYSTEM, DIESEL; FUEL SYSTEM, GASOLINE. This bulletin provides information on common diesel engine tick noises and how they are considered part of normal operation and no parts should be replaced for these normal operating conditions. |
| 16NA244 | 2022-05-31. Service bulletin. FUEL SYSTEM, DIESEL; FUEL SYSTEM, GASOLINE. This informational bulletin provides information on Diesel Exhaust Fluid (DEF) and the proper use of the DEF system. |
| N202324990 | 2022-04-11. Service bulletin. ENGINE; FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING. Special Coverage - certain vehicles may have a condition that could cause the evaporative emissions purge pump to fail. If this condition occurs, the Malfunction Indicator Light (Check Engine Light) will illuminate and a diagnostic trouble code will set. Dealers are to replace the evaporative emissions purge pump/canister as necessary. The repairs will be made at no charge to the customer. |
| 04-06-04-051F | 2022-04-05. Service bulletin. FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM; EQUIPMENT:MECHANICAL. This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive. |
| N212346580-01 | 2022-03-16. Service bulletin. EQUIPMENT:ELECTRICAL:ENGINE BLOCK HEATER; ELECTRICAL SYSTEM:PROPULSION SYSTEM; ELECTRICAL SYSTEM; FUEL SYSTEM, DIESEL. Customer Satisfaction Program - certain vehicles equipped with the Duramax diesel 6.6 liter engine and the optional engine-block heater cord, may have a condition in which the block heater cable function was disabled. Dealers will replace the engine block heater and cord. |
| PIP4723F | 2022-02-14. Service bulletin. SERVICE BRAKES, HYDRAULIC; FUEL SYSTEM, GASOLINE. This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and Vehicle Data Recorder tools, giving website address and step by step instructions to complete the update. |
| 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. |
| 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. |
| 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. |
| 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. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.