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Service bulletins for the 2021 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.

1747 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
PIE0676A2022-04-06. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. This engineering information (EI) closure ends the need for further information from the field in regards to Engine Coolant Reservoir Being Overfilled with Discolored Coolant, Shudder, Shake, Vibration, Harsh Shift, Delayed Shift and/or Slipping Transmission Performance.
22-NA-0742022-04-06. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.
22-NA-0702022-04-06. Service bulletin. EQUIPMENT. This service bulletin provides information for replacement parts traceability (RPT) process to aid in tracking part replacements.
22-NA-0682022-04-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY; STRUCTURE. This technical bulletin provides repair information to correct a customer concern of Diagnostic Tips For Park Assist Off Message / Unwanted Or False Park Assist Alerts / No DTCs.
22-NA-0662022-04-06. Service bulletin. POWER TRAIN. The technical bulletin provides a procedure to lube the yoke and caps if found the cause of the noise from the propshaft area.
19-NA-2182022-04-05. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides a service procedure to correct a condition of a Ticking Noise from the Engine.
PIE06852022-04-05. Service bulletin. ENGINE AND ENGINE COOLING. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to oil leaking from the lower oil pan seal area.
22-NA-0152022-04-05. Service bulletin. 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.
22-NA-0092022-04-05. 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.
20-NA-2092022-04-05. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. This technical bulletin provides repair information to correct a customer concern of Service 4WD Message illuminated on Driver Information Center (DIC), DTCs C118D, C119B and/or C119C set.
19-NA-0762022-04-05. Service bulletin. ELECTRICAL SYSTEM. This service bulletin provides repair information to correct a customer concern of Blue or Black Screen and Service Rear Vision System Message on Radio Display Shifting into Reverse.
18-NA-0992022-04-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.
17-NA-0522022-04-05. Service bulletin. WHEELS; EQUIPMENT. This bulletin updates the position of General Motors on refinishing fully color painted aluminum wheels with base paint. GM has established a new process for the way that refinishing under GM Warranty will be handled (U.S. ONLY).
05-00-89-072E2022-04-05. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. This service bulletin provides the technician with additional information on fuels, fuel additives and fuel management.
04-06-04-051F2022-04-05. 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.
N2223629102022-04-01. Service bulletin. ENGINE AND ENGINE COOLING. Stop Delivery Order N222362910 Effective immediately, stop the delivery of certain 2022 model year Chevrolet Silverado 2500/3500 HD and GMC Sierra 2500/3500 HD vehicles, and 2021-2022 Chevrolet Silverado 4500HD/5500HD/6500HD which are in the attached VIN file and in new vehicle inventory. These vehicles may experience a hydro-lock/no start issue. The GM reference number is N222362910.
N2223629102022-04-01. Service bulletin. ENGINE AND ENGINE COOLING. Upcoming Field Action - Application for Used Vehicle Working Capital Assistance Program (WCAP). The required repair to complete this field action is not yet available. Until further instructions are received, the involved vehicles that are in dealers’ possession (new or used vehicle inventory, GM Certified Used, courtesy transportation vehicles, dealer shuttle vehicles, etc.) must be held and cannot be delivered to customers, dealer-traded, released to auction, used for demonstration purposes or put to any other use.
20-NA-0382022-04-01. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. This informational bulletin explains the difference in AFM and DFM engines and what is and is not activated during this occurrence.
22-NA-0292022-03-30. Service bulletin. EQUIPMENT. This technical bulletin provides a procedure to install a new tonneau cover front seal.
20-NA-1052022-03-24. Service bulletin. VISIBILITY; EQUIPMENT; ELECTRICAL SYSTEM. This technical bulletin provides repair information to correct a customer concern of 360 Camera Views go Blank with Tailgate Removed.
12-08-51-002N2022-03-19. Service bulletin. EQUIPMENT; STRUCTURE. This informational bulletin provides technicians and dealership personnel with spray-in bed liner general information and repair procedures.
N2223629102022-03-18. Service bulletin. ENGINE AND ENGINE COOLING. Stop Delivery Order: Reference Number N222362910 - certain vehicles may experience a hydro-lock/no start issue. Until further instructions are received, new vehicles subject to this stop delivery order must be held and not delivered to customers, dealer-traded, released to auction, used for demonstration purposes or any other dealer use.
22-NA-0472022-03-18. Service bulletin. ENGINE AND ENGINE COOLING. Information bulletin explains a possible coolant leak coming from the cylinder head bolt areas.
22-NA-0462022-03-18. Service bulletin. ELECTRICAL SYSTEM; FORWARD COLLISION AVOIDANCE; LANE DEPARTURE. This technical bulletin provides repair information to correct a customer concern of Service Front Camera Message on the Driver Information Center (DIC).
21-NA-0952022-03-18. Service bulletin. POWER TRAIN. 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.