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
| PIE0615 | 2021-05-03. Service bulletin. POWER TRAIN. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards on a tick and/or ping type noise heard from the Propeller Shaft during acceleration and/or braking. |
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| PIE0612A | 2021-05-03. Service bulletin. ELECTRICAL SYSTEM. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to a Dead Battery and/or Shift to Park Lamp Illuminated On Driver Information Center (DIC). |
| PIE0610A | 2021-05-03. Service bulletin. ELECTRICAL SYSTEM. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to Loss of Power, Instrument Panel Cluster (IPC) Gauges are Inoperative and/or Fluctuate, Multiple Warning Lights on DIC. |
| PIE0602B | 2021-05-03. Service bulletin. ELECTRICAL SYSTEM. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the Service Engine Soon Lamp illuminated on Driver Information Center. |
| 110089005Q | 2021-05-03. Service bulletin. EQUIPMENT. This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only). |
| 1008110001I | 2021-05-03. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin provides information on proper use of floor mats. |
| 100310001F | 2021-05-03. Service bulletin. WHEELS. This informational bulletin provides information on Wheel Balancer Mounting Instructions. |
| 21NA056 | 2021-05-03. Service bulletin. ENGINE AND ENGINE COOLING. This technical bulletin provides a procedure to correct the condition of Information on Vehicles Engine Shuts Off After 30 or 60 Minutes of Idling. |
| 21NA053 | 2021-05-03. Service bulletin. EQUIPMENT. This service bulletin provides repair information for Radio Software Version V155 Update. |
| 21NA052 | 2021-05-03. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC). This technical bulletin provides repair information to correct a customer concern of False Traction Control or Stability Event During Slow Speed Sharp Turns. |
| 21NA043 | 2021-05-03. Service bulletin. EQUIPMENT. This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before sold (prepping) to the customer. |
| 21NA032 | 2021-05-03. Service bulletin. VISIBILITY. This technical bulletin provides repair information to correct a customer concern of DTC P0101 Mass Air Flow (MAF) Sensor Performance, P1682 Set after MAF Replacement. |
| 21NA005 | 2021-05-03. Service bulletin. AIR BAGS. This technical bulletin provides a procedure to replace the air bag and air bag harness to correct a condition of Airbag Malfunction Warning and Airbag Malfunction Indicator Illuminated with DTC B0001-1B due to corrosion. |
| 21NA002 | 2021-05-03. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin provides a test procedure, for a possible faulty DEF Heater. |
| 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. |
| 20NA138 | 2021-05-03. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN. This bulletin provides information on Policies Applicable to All U.S. Dealers for Engine and Transmission Assembly Replacement Under Warranty, Policy or Customer Enthusiasm and information on Submission of Warranty Transaction in Global Warranty Management. |
| 20NA132 | 2021-05-03. Service bulletin. ELECTRICAL SYSTEM. This warranty administration bulletin provides policy information on the requirements for battery testing and warranty replacements. |
| 20NA082 | 2021-05-03. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin explains why more DEF is being used in diesel engines do to new emission standards. |
| 19NA255 | 2021-05-03. Service bulletin. STRUCTURE. This preliminary informational bulletin provides frame coating repair information to correct a customer concern of wax coating on frame peeling, metal shows corrosion/rusting (U.S. and Canada Only). |
| 19NA240 | 2021-05-03. Service bulletin. STEERING. This technical bulletin provides repair information to correct a customer concern of steering wheel oscillation, vibration, shake 50-80 mph. |
| 18NA306 | 2021-05-03. Service bulletin. EQUIPMENT. This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA). |
| 18NA099 | 2021-05-03. Service bulletin. EQUIPMENT. This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim. |
| 16NA109 | 2021-05-03. Service bulletin. STEERING. 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. |
| N202324120 | 2021-04-26. Service bulletin. SERVICE BRAKES. Customer Satisfaction Program. On certain vehicles may experience brake function issues over time based on feedback received from the supplier concerning the condition of certain eBoost brake unit assemblies. Dealers are to replace the eBoost brake unit assembly. |
| N212329850 | 2021-04-26. Service bulletin. ELECTRICAL SYSTEM. Customer Satisfaction Program. On certain vehicles equipped with the provisions ? electrical switch bank (SEO) (RPO UEH), may under certain conditions, have circuit breakers inside an auxiliary control box that could trip due to the high temperature that may accumulate inside the vehicle and control box. Dealers are to replace (7) circuit breakers with equivalent rated fuse and the 5 Amp circuit breaker with a 10 Amp fuse and apply the updated labels. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.