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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

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Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
22-NA-1352022-07-12. Service bulletin. EQUIPMENT. This warranty admin bulletin covers information on Essential Tools that include Consumable Parts.
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-1272022-07-12. Service bulletin. EQUIPMENT. This service bulletin provides repair information on release of Radio Software Version V160 Update to correct customer concerns of radio software issues.
22-NA-0702022-07-12. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This service bulletin provides information for replacement parts traceability (RPT) process to aid in tracking part replacements.
21-NA-1882022-07-12. Service bulletin. EQUIPMENT. This service bulletin provides service information/procedures on continuous improvement Radio Software Version V158 Update to address customer comments on software related issues.
21-NA-0262022-07-12. Service bulletin. EQUIPMENT. This service bulletin provides information for dealers/technicians on accessory all-weather floor liners and flat mats warped or misshapen.
19-NA-0762022-07-11. Service bulletin. EQUIPMENT. 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.
22-NA-1232022-07-02. Service bulletin. EQUIPMENT. This technical bulletin provides repair information to correct a customer concern of Black Radio Display Screen and No Communication with the Video Processing Module (VPM).
21NA2192022-06-21. Service bulletin. EQUIPMENT. This informational bulletin provides information for dealers/technicians on an elevated idle feature.
21NA1822022-06-21. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This service bulletin provides repair information to correct a customer concern of Radio System Settings Lost or Returning to Default Values.
21NA1352022-06-21. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.
21NA1872022-06-21. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT. This technical bulletin provides repair information to correct a customer concern of Unable to Set PIN to Enable Teen Driver Feature.
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.
20NA2032022-06-21. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING:ENGINE:DIESEL. This informational bulletin explains how the regen works for the DEF system and how it works at different levels.
20NA1102022-06-21. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL; FUEL SYSTEM, DIESEL:DELIVERY:FUEL PUMP; EQUIPMENT ADAPTIVE/MOBILITY. This service bulletin provides service information for a DEF pump that is unable to build pressure after replacement.
20NA0902022-06-21. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE. This informational bulletin provides a way for the technician to identify if the ECM has been modified.
20NA0432022-06-21. 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.
PIT59132022-06-13. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This Preliminary information communicates a condtion where SD card removed is being displayed on the radio display intermittently. ThisPI advises that engineering is working on a fix for this issue
PI0653F2022-06-13. Service bulletin. STRUCTURE; EQUIPMENT. This preliminary informational bulletin provides information on Damaged, Disassembled or Improperly Packaged Turbochargers Returned to Warranty Part Center.
1308116001G2022-06-13. Service bulletin. EQUIPMENT. The intent of this technical bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.
990089019W2022-06-13. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Warranty Administration bulletin provides information on Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program Information.
100605002J2022-06-13. Service bulletin. EQUIPMENT. This informational bulletin provides information on Clean Exhaust Filter See Owners Manual Now or Cleaning Exhaust Filter Keep Driving Until Message is Cleared messages Displayed on DIC, DTC P2463 May Be Set.
080089014G2022-06-13. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This service bulletin provides information for dealers/technicians on Use of Dealer Case Management (DCM) and Being Prepared for Contacting U.S. Technical Assistance (TAC).
PIE07012022-06-10. Service bulletin. STRUCTURE:BODY; EQUIPMENT. This engineering informational bulletin is requesting information from technicians to take pictures of decals wrinkling, peeling, bubbling, discoloration, delaminating and/or coming off and contact the engineer listed.
16-NA-1092022-06-09. Service bulletin. STEERING; EQUIPMENT. This service bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear due to seeing grease or sealant on certain locations on the gear.

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