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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

Bulletins, newest first
21NA0772021-05-10. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; UNKNOWN OR OTHER. This informational bulletin provides information for dealers/technicians on Aero Shutter Related Diagnostic Codes.
21NA0722021-05-10. Service bulletin. ENGINE. This informational bulletin advises the tech that the solenoid style engine mounts are being replaced with standard non solenoid mounts.
21NA0712021-05-10. Service bulletin. ELECTRICAL SYSTEM. This technical bulletin provides repair information to correct a customer concern of DTC?s P05AE or P059F Set Current or History.
21NA0622021-05-10. Service bulletin. EQUIPMENT. This informational bulletin directs dealers to the correct path needed to correct a vehicle with the condition of Add-On Equipment Inoperative, Sulfur/Acid Smell During Vehicle Operation based on the correct cause.
21NA0612021-05-10. Service bulletin. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER. This service bulletin provides information for dealers on Using EL-52545 When Diagnosing PEPs Transmitter Key Fobs (North America ONLY).
PIE06252021-05-03. Service bulletin. EXTERIOR LIGHTING:TURN SIGNAL:SWITCH. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards on a turn signal not canceling and/or mis-canceling.
PIE06152021-05-03. 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.
PIE0612A2021-05-03. 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).
PIE0610A2021-05-03. 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.
PIE0607A2021-05-03. Service bulletin. EQUIPMENT. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to USB Port Does Not Charge or Recognize Phone/Device, or Not Holding Cable in Port, USB and/or Auxiliary Port Inoperative or Won?t Play Media From the Device Constantly or Intermittently, Apple CarPlay and/or Android Auto Inoperative When Connecting into the USB Port or Cuts Out Over Bumps.
PIE0602B2021-05-03. 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.
110089005Q2021-05-03. Service bulletin. EQUIPMENT. This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).
1008110001I2021-05-03. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin provides information on proper use of floor mats.
100310001F2021-05-03. Service bulletin. WHEELS. This informational bulletin provides information on Wheel Balancer Mounting Instructions.
21NA0562021-05-03. 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.
21NA0522021-05-03. 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.
21NA0432021-05-03. 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.
21NA0322021-05-03. 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.
21NA0052021-05-03. 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.
21NA0022021-05-03. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin provides a test procedure, for a possible faulty DEF Heater.
20NA1972021-05-03. 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.
20NA1382021-05-03. 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.
20NA1322021-05-03. Service bulletin. ELECTRICAL SYSTEM. This warranty administration bulletin provides policy information on the requirements for battery testing and warranty replacements.
20NA0822021-05-03. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin explains why more DEF is being used in diesel engines do to new emission standards.
19NA2552021-05-03. 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).

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