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Service bulletins for the 2026 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.

330 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with type: Service campaign are shown. Show all

Bulletins, newest first
N2625677202026-09-17. Service campaign. POWER TRAIN. Certain vehicles may have received transmission mounting bolts that do not meet expected hardness specifications. Loose or failed bolts may result in hard shifting from the transmission and/or noise. Dealers will replace both transmission mounting bolts.
N2625721312026-08-28. Service campaign. ENGINE. Customer Satisfaction Program. Certain vehicles listed above may have a condition in which the oil galley in the cylinder head was not drilled properly. Dealers are to perform the inspection procedure contained within this bulletin.
N252516700-012026-08-26. Service campaign. UNKNOWN OR OTHER. The Battery Energy Control Module (BECM) in certain vehicles include battery-monitoring software. An update is available for this software that improves the BECM’s ability to detect moisture inside the RESS enclosure. Dealers are to reprogram the BECM with the updated software.
N2625688302026-08-04. Service campaign. ENGINE. Certain vehicles listed above may have a condition in which the oil filter was not adequately tightened. Dealers are to check and tighten the oil filter if found to be loose.
N2525198602026-07-28. Service campaign. UNKNOWN OR OTHER. Certain vehicles listed above may have a condition in which the vehicle may shift out of park without key fob inside vehicle while in "Protected Idle" Mode. Dealers will update the BCM software. Owners who have accepted applicable terms and conditions will have the opportunity to accept these software changes using wireless over-the-air (OTA) technology without having to bring their vehicle to a dealership. Alternatively, owners may have their vehicle serviced at a GM dealer to receive these software updates.
N2625606802026-06-10. Service campaign. POWER TRAIN. Certain vehicles may have a condition in which the bolts for the transmission control valve body may be loose or missing. Dealers will retorque or replace the suspect valve body bolts.
N2625583002026-06-03. Service campaign. UNKNOWN OR OTHER. Certain vehicles may have been built with the incorrect Body Control Module (BCM) calibration data file. Dealers will reprogram the BCM with the correct software.
N2625473302026-05-27. Service campaign. UNKNOWN OR OTHER. Certain vehicles may have a condition in which the Telematic Control Module may enter an unrecoverable state. Dealers are to reprogram the Telematic Control Module. IMPORTANT: The module may be several software versions behind and could take multiple programming events to bring it to the latest software level (The same calibration screen MUST be displayed to validate the module has been programmed to the latest level). Owners who have accepted applicable terms and conditions will have the opportunity to accept these software changes using wireless over-the-air (OTA) technology without having to bring their vehicle to a dealership. Alternatively, owners may have their vehicle serviced at a GM dealer to receive these software updates.
N262547330-012026-05-08. Service campaign. UNKNOWN OR OTHER. Certain vehicles may have a condition in which the Telematic Control Module may enter an unrecoverable state. Dealers are to reprogram the Telematic Control Module. IMPORTANT: The module may be several software versions behind and could take multiple programming events to bring it to the latest software level (The same calibration screen MUST be displayed to validate the module has been programmed to the latest level). Owners who have accepted applicable terms and conditions will have the opportunity to accept these software changes using wireless over-the-air (OTA) technology without having to bring their vehicle to a dealership. Alternatively, owners may have their vehicle serviced at a GM dealer to receive these software updates.
N2525370312026-05-04. Service campaign. UNKNOWN OR OTHER. Certain vehicles listed above may be equipped with a trailer hitch label that understates hitch capability. Because this label can easily be installed by the customer, and to reduce their inconvenience, the corrected label and installation instructions will be mailed to customers of record.
N2625476702026-04-20. Service campaign. STRUCTURE:BODY. Certain vehicles listed above may have a condition in which there are splits in the cab door ring in the rear outboard side of the roof ditch and exterior cab door ring. Dealers will inspect the rear outboard roof ditch area of the cab door ring and the exterior cab door ring, and weld and seal any identified splits as necessary.
N2625473302026-04-17. Service campaign. UNKNOWN OR OTHER. Certain vehicles, may have a condition in which the Telematic Control Module may enter an unrecoverable state. Dealers are to reprogram the Telematic Control Module. Important: The module may be several software versions behind and could take multiple programming events to bring it to the latest software level (The same calibration screen MUST be displayed to validate the module has been programmed to the latest level). Owners who have accepted applicable terms and conditions will have the opportunity to accept these software changes using wireless over-the-air (OTA) technology without having to bring their vehicle to a dealership. Alternatively, owners may have their vehicle serviced at a GM dealer to receive these software updates.
N2625468402026-04-13. Service campaign. UNKNOWN OR OTHER. Customer Satisfaction Program. On certain vehicles listed above, the customer was charged for a back-up alarm calibration which was not provided with the vehicle. Dealers will provide the customer with a reimbursement check in the amount of $50.00 (USD) / $85.00 (CAD).
N2525290802026-04-01. Service campaign. ELECTRICAL SYSTEM. Service Update. Certain vehicles listed above may be missing a high voltage header plug on the RESS battery pack drive motor connector. Dealers are to inspect the RESS pack connectors and install the proper HV Header Plug if missing.
N2525415102026-03-03. Service campaign. UNKNOWN OR OTHER. Certain vehicles may have been sold with a GM NACS Level 2 EV charging adapter (NACS to J1772) in which a quality issue was identified. Dealers are to provide the customer with the latest design charging adapter.
N2525363902026-02-25. Service campaign. UNKNOWN OR OTHER. Certain vehicles, equipped with Snowplow Prep Package RPO VYU, may be missing an accessory harness. Dealers are to include the Auxiliary Wiring Harness in the accessory pack for vehicles in dealer stock. Vehicles NOT in dealer stock will have the Harness installed by the dealer.
N2525365602026-02-16. Service campaign. UNKNOWN OR OTHER. Certain vehicles may experience water intrusion due to a hole in the cabin Pressure Relief Valve. Dealers are to seal the hole using RTV sealant.
N252521591-032026-02-11. Service campaign. UNKNOWN OR OTHER. Certain vehicles listed above may have a condition in which hard braking may unexpectedly engage. Dealers will re-program the IPM or Front View Camera depending on what the vehicle is equipped with.
N252521591-022026-02-10. Service campaign. UNKNOWN OR OTHER. Certain vehicles listed above may have a condition in which hard braking may unexpectedly engage. Dealers will reprogram the Image Processing Module.
N2525370302026-02-10. Service campaign. UNKNOWN OR OTHER. Certain vehicles listed above, may have a condition where the trailer hitch label understates hitch capability. Dealers will remove the sticker on trailer hitch.
N2525277802025-11-20. Service campaign. UNKNOWN OR OTHER. Service Update. Certain vehicles listed above may have a condition in which the front object alarm sensor wire harness retention clip is not inserted in the front bumper bracket. Dealers will verify the harness clip is connected, and reseat if necessary.
N2525275002025-11-12. Service campaign. SUSPENSION. Certain vehicles may have a condition in which the Rear Spring U-bolt fasteners are torqued below specification. Dealers are to torque both the right and left side Rear Spring U-bolt fasteners to specification.
N2525261502025-11-04. Service campaign. FUEL/PROPULSION SYSTEM. Service Update. Certain vehicles listed above may have a condition which can cause the fuel pump power control module to fail. If this were to occur, fuel flow to the engine could be interrupted. Dealers will replace the fuel pump power control module.
N2525259202025-10-20. Service campaign. UNKNOWN OR OTHER. Certain vehicles listed above may have a condition in which the rear glass window primer is expired. Dealers will replace the rear window.
N2525233902025-10-09. Service campaign. STEERING. Certain vehicles may have a condition in which the Intermediate Steering Shaft Lower Bolt is below torque specification. Dealers will inspect and if necessary, correct the front brake line torque to specification.

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