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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
N192269370 Notic2019-12-30. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. N102269370 - Customer Satisfaction Program (Notice of Disclosure Message Only). Certain vehicles, may have a winter grille cover that does not have a hole for the front camera. Without the hole for the front camera, Surround or 360-degree View, is compromised when a front view image is required in whole or part. The resulting front image section on the center stack display will be blocked and appear black or grey. Dealers will replace the winter grille cover.
N1922793502019-12-30. Service bulletin. EXTERIOR LIGHTING:FOG LIGHTS; STRUCTURE; ELECTRICAL SYSTEM. N192279350 - Service Update Bulletin. On certain vehicles, dealer installed accessory LED fog lamps were offered and sold to customers, but there was not a body control module calibration available at the time to enable the fog lamps to operate. Dealers are to reprogram the body control module.
N1922693702019-12-30. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; STRUCTURE:FRAME AND MEMBERS. N102269370 - Customer Satisfaction Program. Certain vehicles, may have a winter grille cover that does not have a hole for the front camera. Without the hole for the front camera, Surround or 360-degree View, is compromised when a front view image is required in whole or part. The resulting front image section on the center stack display will be blocked and appear black or grey. Dealers will replace the winter grille cover.
N1922799002019-12-30. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; STEERING. N192279900 - Service Update. On certain vehicles equipped with an active hydraulic assist gear (RPO NV8), the driver may experience a steering wheel vibration while driving typically at speeds from 50 mph (80 km) to 80 mph (130 km). Dealers are to reprogram the power steering control module.
N1922734002019-12-30. Service bulletin. EQUIPMENT; FUEL SYSTEM, GASOLINE; ENGINE. N192273400 - Service Update. Certain LD vehicles may have a condition in which the right-hand side, positive crankcase ventilation (PCV) tube may not be fully seated (loose), allowing unrestricted blow-by gases to release to the atmosphere. Customers may experience a whistling sound, or there may be an audible air leak. Disconnection of this line is monitored through the fuel trim diagnostics, and in a worst-case scenario, the customer may experience a check engine light with DTC codes P0171 and/or P0174. Dealers are to inspect and ensure the PCV tube to the right-hand rocker is fully seated and secure.
PIE05482019-12-16. Service bulletin. EQUIPMENT. This engineering informational bulletin is requesting information on a issue that is caused by loose ground connection at G110 or G114 that results in a repair.
PIE05472019-12-16. Service bulletin. ELECTRICAL SYSTEM. This engineering informational bulletin is requesting information a issue that is caused by wire damage or an incorrect wire routing issue that results in a repair.
PIE05462019-12-16. Service bulletin. ELECTRICAL SYSTEM. This engineering information (EI) bulletin is requesting information from the field on conditions of Service Engine Soon (SES) Lamp Illuminated, DTCs B2B0D and/or B2B0E Central Gateway Module Codes Unable to Communicate with HSLAN or LSLAN. Eng is attempting to root cause condition and validate a field fix.
PIE0544A2019-12-16. Service bulletin. UNKNOWN OR OTHER. This engineering informational bulletin is requesting information on vehicles with the Service Engine Soon (SES) lamp being illuminated and DTC P1467 set.
PIE05442019-12-16. Service bulletin. ENGINE; ELECTRICAL SYSTEM. This engineering informational bulletin is requesting information on vehicles with the Service Engine Soon (SES) lamp being illuminated and DTC P1467 set.
PIE0536A2019-12-16. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE. 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 oil pan.
100089009D2019-12-16. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin provides information on key code security rules and information on GM keycode look-up applications.
080310006G2019-12-16. Service bulletin. EQUIPMENT; TIRES; EQUIPMENT ADAPTIVE/MOBILITY; WHEELS. This technical bulletin provides a procedure on how to clean and resurface aluminum wheel bead seats for vehicles that have the condition of Tire Slowly Goes Flat, Tire Air Loss, Low Tire Pressure Warning Light Illuminated, Aluminum Wheel Bead Seat Corrosion.
080089014F2019-12-16. Service bulletin. EQUIPMENT; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin provides information for dealers/technicians on Use of Dealer Case Management (DCM) and Being Prepared for Contacting U.S. Technical Assistance (TAC).
010842001M2019-12-16. Service bulletin. EQUIPMENT; EXTERIOR LIGHTING; EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Replacement Guidelines.
19NA2702019-12-16. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This technical bulletin provides repair information to correct a customer concern of Phone Ringer Volume Turned Down or Too Quiet.
19NA2632019-12-16. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin explains a normal condition for sludge to form in the oil cap when equipped with DEF system.
19NA2572019-12-16. Service bulletin. STRUCTURE:FRAME AND MEMBERS. This technical bulletin provides repair information to correct a customer concern of the pickup box being out of alignment.
PIP56902019-12-09. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This Preliminary information communicates to dealer technicians there is a software anomaly not allowing the air filter life to be reset.
PIP56892019-12-09. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary information communicates to the technician to reprogram the engine control module
PIT5689A2019-12-09. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary information communicates that some customers may comment that after an auto-stop event the engine does not restart and to inspect the engine ground strap.
PIP5667A2019-12-09. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary information communicates the part restriction for the diesel engine air delivery and exhaust system components
PIT57212019-12-09. Service bulletin. LANE DEPARTURE. This Preliminary Information communication provides information to the technician about vehicles that have Lane Keep Assist inoperative with the lane keep assist switch LED is always on and the lane keep assist Icon is not illuminated on the IPC after a programming event. Technician will need to ensure that the Front View Camera Module has been properly SPS programmed and SPS configured. Technician will also perform the "Front View Camera Module Calibration" procedure using Global Diagnostic System 2.
PIT5527C2019-12-09. Service bulletin. LANE DEPARTURE. This Preliminary Information communication provides information to the technician about vehicles that show a "Take Steering" message on the Driver Information Center along with a warning chime/alert. Dealer should be advised the purpose of the message is to alert the driver that the Lane Keep Assist system has not detected active steering input from the driver (hands off the steering wheel).
PIP5686A2019-12-09. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary information communicates A vehicle may come into the dealer with a rough idle, lean running concern and/or air leak noise from the PCV system. Upon inspection the technician may find the SES lamp is illuminated and/or DTC?s P0171 and/or P0174 may be in active or stored history. This condition may be caused by an incorrectly installed foul air PCV tube or tube may be damaged

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