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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
16-NA-2442022-10-11. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, DIESEL. This informational bulletin provides information on Diesel Exhaust Fluid (DEF) and the proper use of the DEF system.
15-00-89-004E2022-10-11. Service bulletin. POWER TRAIN; SUSPENSION; ENGINE AND ENGINE COOLING; SERVICE BRAKES, HYDRAULIC; STEERING. This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
10-06-05-002K2022-10-11. Service bulletin. FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING. 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.
09-06-04-026W2022-10-11. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
07-06-01-016H2022-10-11. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides information on Internal Engine Noise or Damage After Oil Filter Replacement.
06-00-89-031H2022-10-11. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. This service bulletin provides information on OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification.
05-06-04-022T2022-10-11. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, DIESEL; FUEL SYSTEM, GASOLINE. This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL.
05-00-89-072F2022-10-11. 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.
04-06-04-051G2022-10-08. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
01-06-01-011M2022-10-08. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.
00-06-01-012L2022-10-08. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin advises about the possible issues that may occur when using a scotch brite pad or highly abrasive disk on gasket sealing surfaces or reused parts.
22-NA-0222022-10-07. Service bulletin. ENGINE AND ENGINE COOLING. This Informational bulletin advises the technician of a possible oil leak at the front cover and how to diagnose it to verify if it is coming from the seal or not.
21-NA-1132022-10-07. Service bulletin. ENGINE AND ENGINE COOLING. This technical bulletin provides a procedure to perform a learn procedure for the turbo actuator.
20-NA-0902022-10-07. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin provides a way for the technician to identify if the ECM has been modified.
19-NA-1872022-10-07. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides additional information on how to graph a cylinder misfire and a possible diagnostic cause.
18-NA-1502022-10-07. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin provides information on 6.6L Duramax Possible Oil Leak Path Information.
18-NA-0982022-10-07. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin provides information for the technicians on where to look on the Duramax engine for coolant leaks.
18-NA-0112022-10-07. Service bulletin. ENGINE AND ENGINE COOLING. Informational bulletin explaining how a plow may cause overheating and engine damage when traveling over 45 mph.
17-NA-3742022-10-07. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin advises the technician of how the Soot information has changed from grams to percentage.
16-NA-3762022-10-07. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin provides information on higher than expected oil consumption.
16-NA-3722022-10-07. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information on common diesel engine tick noises and how they are considered part of normal operation and no parts should be replaced for these normal operating conditions.
16-NA-2222022-10-07. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.
00-06-01-026P2022-09-30. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
PIE0665B2022-09-19. Service bulletin. ENGINE AND ENGINE COOLING. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to Service Engine Soon (SES) Lamp illuminated and/or “Service Emissions System” message on the Driver Information Center (DIC).
22-NA-1762022-09-19. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. This technical bulletin provides information on a possible bolt and guide pin that may be missing from the control valve which will need to be installed to correct the repair.

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