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Service bulletins for the 2020 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.

2120 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
20-NA-0652022-09-07. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information on tools available to find an intake vacuum leak or exhaust leak to correct a condition of MIL Illuminated with Multiple Fuel Trim and/or Oxygen Sensor Codes Set.
22-NA-1682022-08-30. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides diagnostic information when checking the exhaust system for leaks.
19-NA-0442022-08-29. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.
22-NA-1502022-08-19. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, DIESEL. This technical bulletin provides a procedure to program the Reductant Control Module and Setup and Perform the Reductant Fluid Tank Level Reset.
22-NA-0802022-08-03. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR. This technical bulletin provides a procedure to replace the camshaft actuator magnet to correct customer concerns of engine related shudder.
22-NA-0152022-08-03. Service bulletin. FUEL SYSTEM, OTHER:FUEL INJECTION SYSTEM; ENGINE AND ENGINE COOLING; POWER TRAIN. This informational bulletin provides graphs to help identify possible issues that may cause shaking and shudders and what may be the cause of said issue.
PIP5212D2022-07-25. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary Information communication provides information to the technician about vehicles that have run hot and or has a tick noise. Technician should inspect the head gaskets to ensure are not installed backwards. Technician should replace the head gasket if they are found installed backwards.
PIT5448H2022-07-25. Service bulletin. ENGINE. This Preliminary Information communication advises the technician with a tip when the vehicle stops running after it has been idling for 2.5 hours. This is normal operation of the vehicle built with regular production code BTM and without Regular Production Option Code AVF. If the vehicle was built with regular production code BTM and AVF only has a 1 hour idle time.
19-NA-2182022-07-20. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides a service procedure to correct a condition of a Ticking Noise from the Engine.
22-NA-0822022-07-12. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. This technical bulletin provides repair information to correct a customer concern of Malfunction Indicator Lamp Illuminated with DTC P06DD, P2B60, P26BB, P1098 Set.
12-01-37-001F2022-07-12. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This service bulletin provides information to dealership personnel on a new refrigerant (R1234yf) for A/C service.
22-NA-1152022-07-12. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This service bulletin provides information for U.S. dealers ONLY to refer to the Battery Maintenance Report to identify vehicles in dealer inventory that require attention.
22-NA-0272022-07-01. Service bulletin. ENGINE AND ENGINE COOLING. This technical bulletin advises to replace the camshaft cover if found within the Julian date and the cause of a customer concern of possible oil consumption with or without DTC P06DD.
22-NA-0092022-07-01. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides service information on new torque specification and installation procedure for ACDelco Spin-On Oil Filters.
21-NA-2652022-07-01. Service bulletin. ENGINE AND ENGINE COOLING. This technical bulletin provides a procedure to re-route the coolant hose away from the front prop shaft to avoid contact.
DCS59992022-06-27. Service bulletin. ENGINE AND ENGINE COOLING. Heater Outlet Pipe ? Population Revised
N2123454402022-06-27. Service bulletin. ENGINE AND ENGINE COOLING. Heater Outlet Pipe ? Population Revised
PIE0695A2022-06-25. Service bulletin. ENGINE AND ENGINE COOLING. This engineering information (EI) closure ends the need for further information from the field in regards Service Emission System and/or DEF Level Low message on driver information center (DIC).
21-NA-0772022-06-25. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. This informational bulletin provides information for dealers/technicians on Aero Shutter Related Diagnostic Codes.
22NA0272022-06-21. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR. This technical bulletin advises to replace the camshaft cover if found with in the Julian date and the cause of the customers concern.
22NA0252022-06-21. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. This technical bulletin provides a procedure to check and repair the balancer if found contacting the front cover.
21NA1492022-06-21. Service bulletin. ENGINE AND ENGINE COOLING. This technical bulletin provides repair information to correct a customer concern of Engine Wire Harness Chafing.
21NA2142022-06-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; EQUIPMENT; ENGINE AND ENGINE COOLING. This technical bulletin provides repair information to correct a customer concern of Service Engine Soon Lamp Illuminated, Harsh or Delayed Transmission Shifts Including Slip, Surge, Shudder, Noise, Whine, Growl, Shake and/or Vibration, DTCs P2002, P2463, P2459, P144E, P0421, P0422, P0106 and/or P20EE Set Current or in Recent History.
21NA1132022-06-21. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE. This technical bulletin provides a procedure to perform a learn procedure for the turbo actuator.
21NA0952022-06-21. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. This technical bulletin provides a procedure to seal the exhaust at the UFSCR and Tailpipe flange.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.